Capstone 1: Diagnosing Your Home — A Full Systems Assessment
There is a difference between living in a house and knowing your house.
Most homeowners live in their homes for years — sometimes decades — without ever doing a deliberate, systematic walk-through of everything the building contains. They know the squeaky stair. They know the bathroom faucet that takes forever to get hot. They know the corner of the basement that gets wet every spring. But they don't know whether those are the only problems, or whether there are issues developing quietly behind walls, above ceilings, and under floors that haven't announced themselves yet.
This capstone is the tool for changing that. It is not a chapter to read and set aside. It is a workflow — a structured, guided inspection of your own home that produces a real output: a documented baseline record of every major system, a prioritized list of what needs attention, a completed emergency information summary, and the raw material for your home's maintenance calendar.
You will not become a professional home inspector by completing this. A licensed inspector brings specialized tools, professional training, and liability that this guide cannot replicate. What you will gain is something equally valuable: fluency with your own specific home. You will know where your main water shutoff is. You will know how old your water heater is and what condition it appears to be in. You will know whether your smoke detectors are the right type, in the right places, and still functional. You will have photographs and notes that serve as a baseline — so that in three years, when something changes, you can see that it changed.
That knowledge protects you. It protects your investment. And it makes every subsequent conversation with a contractor — every estimate, every proposal, every explanation of what went wrong and how much it will cost — a conversation you can participate in rather than one that simply happens to you.
How to Use This Capstone
This Is Not Reading — It Is Doing
Work through each Assessment Module physically, in your home, with this guide either printed out or open on a device you can carry room to room. Do not read ahead and plan to do it later. The value comes from doing each step as you encounter it.
The guide is organized as a series of modules, each covering a major system or area of the home. Within each module, you will find:
- What to look for (specific observations to make)
- What to document (photos, measurements, notes to capture)
- Decision frameworks (how to classify what you find)
- Tie-backs to relevant chapters for deeper context when needed
Tools You Will Need
Gather these before you start. You probably own all of them.
- Flashlight or headlamp — essential for attic, crawlspace, mechanical room, and under-sink inspection. A headlamp is better because it frees both hands.
- Phone or camera — for photos. Take more than you think you need.
- Tape measure — for a few key measurements (gutter slope, foundation crack width, water heater dimensions if needed for replacement planning).
- Notepad and pen — or the notes app on your phone. Paper is reliable; use what you will actually use.
- Flathead screwdriver — useful for testing wood soundness (press the tip into suspicious areas; soft wood that yields easily indicates rot or insect damage).
- Outlet tester — a $10–15 plug-in device from any hardware store that tells you whether an outlet is correctly wired and whether GFCI protection is present. Highly recommended.
- Ladder (optional but useful) — a 6-foot stepladder gets you close enough to check attic hatch insulation, inspect gutters from above, and look at ceiling fixtures properly.
- Bucket of water (for drain testing) — useful for checking drain flow in infrequently used fixtures.
One item you should not use during this assessment: your hands in the electrical panel. The visual checks described in Module 2 are done with eyes only, panel cover on, and breakers untouched unless you already know how to safely work in a panel.
Suggested Session Structure
This assessment is designed to be completed in three to four sessions spread over a weekend or several evenings. Trying to do it all in one pass leads to fatigue and shortcuts.
Session 1 (45–90 minutes): Exterior Walk (Module 1) Best done during daylight, in dry weather. Walk the full perimeter of your home. Bring your phone for photos.
Session 2 (60–120 minutes): Mechanical Systems and Below-Grade Spaces (Modules 2 and 3) This covers the electrical panel, HVAC, water heater, plumbing supply, drains, attic, and crawlspace. The crawlspace is the hardest physically — save energy for it.
Session 3 (60–90 minutes): Interior Walk (Modules 4 and 5) Room by room, floor by floor. Safety systems are included in this session.
Session 4 (60–90 minutes): Documentation (Module 6 and Baseline Record) Compile your notes, fill in the templates, photograph anything you missed, and build the final record. This session can be done at a desk.
The Output You Are Building
By the time you complete all six modules and the documentation section, you will have:
- A Home Assessment Summary Sheet — a single-page overview of every system with a condition rating and notes
- A Repair Priority Matrix — urgent vs. deferred items, with rough cost ranges
- An Emergency Information Summary — main shutoffs, utility contacts, and emergency procedures specific to your home
- Your Home's Baseline Record — system ages, renovation history, known issues, and maintenance dates
These documents belong in a physical binder and a digital backup. They are what you hand to a house-sitter, what you reference before calling a contractor, and what you update each year.
A Word About Our Three Households
Throughout this capstone, you will follow three homeowners doing this same assessment on their own homes. They are introduced in Chapter 1 and appear throughout the book.
Isabel Rodriguez is an architect living in a 1982 brick townhouse she purchased three years ago. She and her husband Miguel — an accountant who describes himself as "handy but untrained" — have been aware that the house needs attention but haven't known where to start. Isabel is thorough, visual, and has professional instincts about spatial problems that don't always translate to mechanical systems. This assessment reveals several things she missed in the original walkthrough.
Dave Kowalski is completing this assessment at the end of his first full year in a rural property — a 1974 ranch-style home on two acres with a well and septic system. He has spent the year learning by doing, sometimes painfully. This assessment is his formal accounting of the year: what he fixed, what he deferred, and what he didn't know about until now.
Priya Chen and Marcus Williams are using this assessment before beginning a full gut renovation of their 1960s suburban single-family home. Their goal is different from Isabel's and Dave's: they are establishing a documented baseline so that after the renovation is complete, they can prove — to themselves, to their insurance company, and to any future buyer — exactly what was found, what was replaced, and what was upgraded.
Their experiences are woven throughout the modules. Their findings are instructive precisely because they differ: they own different types of homes in different conditions at different stages of ownership, and the assessment surfaces different things for each of them.
Assessment Module 1: The Exterior Walk
Allow 45 to 90 minutes. Do this in daylight. Bring your phone, notepad, and flashlight. Wear shoes you don't mind getting dirty.
The exterior walk is the most information-dense single circuit you can make around your home. Foundation, drainage, roof, siding, windows, doors — all of it is visible from outside. Inspectors spend a significant portion of their inspection time outside for this reason. Most homeowners rarely look at their house from the outside with any intentional focus.
Walk the full perimeter twice: once at a normal pace just to orient yourself, and once slowly with your notepad out.
1A: Foundation Assessment
The foundation is the most consequential structural component of your home, and it is largely readable from the outside if you know what to look for. You are not trying to perform a structural engineering analysis — you are looking for signs that warrant further attention, and classifying what you find.
What to Look For
Start at one corner of the house and walk slowly, looking at the visible portion of the foundation wall just above grade level. Note:
- Cracks — any visible cracks in the foundation material. Note their orientation (horizontal, vertical, diagonal, stair-step), width (hairline, less than 1/8 inch, greater than 1/8 inch), and whether they appear fresh (sharp edges, no staining) or old (rounded edges, staining, vegetation growing in them).
- Efflorescence — white, chalky mineral deposits on the surface of concrete or masonry. This is dissolved minerals carried by water moving through the wall. It does not indicate structural failure but confirms that water is moving through the foundation material, which matters.
- Staining — rust staining (indicates water and rebar interaction), dark staining (moisture), or green/black staining (biological growth — algae, moss, or mold).
- Surface deterioration — spalling (surface flaking or pitting), honeycombing (rough porous texture indicating poor concrete consolidation during construction), or crumbling mortar in block or brick foundations.
- Grade — the slope of the ground at the base of the foundation. Stand at each corner and observe whether the ground slopes away from the house or toward it. Ideally, the grade should drop at least 6 inches over the first 10 feet from the foundation wall. Soil that slopes toward the house is one of the most common contributors to basement and crawlspace moisture problems.
- Exposed wood — any wood framing that is within 6 inches of the soil surface is a potential pathway for moisture and insect damage. This is most common at stair stringers, deck ledger boards, and wood that may have been partially buried over time as soil has built up.
What to Document
For every crack you find: - Photograph from directly in front, then from an angle - Note location (e.g., "northeast corner, 18 inches east of corner") - Note orientation and estimated width - Note whether you can see daylight through it - Note any staining above or below it
For grade issues: - Photo from each side of the house showing the slope - Note whether downspouts discharge near any low-grade areas
Decision Framework: Classifying What You Find
| Finding | Classification | Action |
|---|---|---|
| Hairline cracks (< 1/16 in), vertical or diagonal, no staining | Cosmetic | Monitor annually, seal with hydraulic cement or epoxy injection if desired |
| Cracks up to 1/8 in, some staining, stable appearance | Monitor | Document with photos, re-check in 6 months. Consider contacting a structural engineer if adjacent to corners or in multiples |
| Cracks wider than 1/8 in, horizontal cracks of any width, stair-step cracks in block or brick, cracks with visible offset (one side higher than the other) | Urgent | Consult a structural engineer before doing anything else |
| Efflorescence without cracks | Monitor | Improve drainage; address sources of water infiltration |
| Grade sloping toward house | Fix Within 6 Months | Regrading is often a DIY project with rented equipment; can dramatically reduce moisture intrusion |
| Exposed wood within 6 in of grade | Fix Soon | Add soil clearance; inspect wood for rot and insect damage |
🔴 Horizontal cracks in poured concrete or concrete block foundation walls indicate lateral pressure from soil. This is a structural issue, not a cosmetic one. Do not attempt DIY repair. Consult a licensed structural engineer.
📖 For deeper context on foundation types, common failure modes, and the difference between normal settling cracks and structural movement: see Chapter 2 (Foundations) and Chapter 27 (Foundation Exterior Waterproofing).
Isabel's Exterior Foundation Walk
Isabel had noticed a diagonal crack in the northeast corner of her townhouse foundation during the original home inspection three years ago. The inspector called it cosmetic. Today, with photos from three years ago on her phone for comparison, she can see it has widened slightly — maybe 1/16 inch at the widest point — and there is now a faint rust stain below it. She photographs it, measures the width with a folded dollar bill as a rough gauge (a dollar bill is about 0.004 inches thick; she can fit three folded layers), and marks it in her notes as "Monitor — re-photograph in spring." She also notices that the soil on the north side of the townhouse, where a neighbor's property abuts hers, has built up enough that the grade actually slopes slightly toward her foundation. She adds "regrading — north side" to her repair list.
1B: Roof Assessment (Ground-Level)
You will not be climbing onto your roof as part of this assessment unless you are already comfortable doing so and have appropriate safety measures in place. A ground-level inspection with binoculars (or by photographing with a telephoto lens or zoom) is sufficient to identify most significant issues and is the approach professional inspectors often use.
What to Look For
Walk to a point where you can see each roof plane fully. For a typical two-story home, the far side of the front yard often gives the best angle. Look for:
- Shingle condition — uniform color and texture vs. patches of darker or lighter coloring, which can indicate moisture absorption, aging, or prior repairs. Curled shingle edges (cupping or curling) indicate shingles past their service life. Missing shingles are obvious. Granule loss shows as bare, dark patches that look different from the surrounding surface.
- Shingle alignment — straight courses that follow consistent horizontal lines vs. wavy, uneven rows that might indicate decking problems underneath.
- Ridge line — the horizontal ridge at the peak should be straight. A sagging ridge line indicates structural issues with the ridge board or the rafters below it.
- Roof planes — each plane should appear flat when you sight down it from the end. A noticeable sag in the middle of a roof plane indicates rafter failure or sheathing deterioration.
- Flashing — the metal pieces at any point where the roof meets another surface: chimneys, skylights, dormers, vents, and walls. Flashing should lie flat and smooth, be sealed at the edges, and show no signs of separation or rust. Improperly installed or failed flashing is the single most common cause of roof leaks.
- Penetrations — every pipe, vent, or other object that passes through the roof surface requires a sealed boot or flashing. Check that boots (the rubber or metal collars around pipe penetrations) are intact, not cracked, and sitting flush.
- Chimney condition — check mortar between bricks for deterioration (soft, crumbling, missing), check the chimney cap if visible, and look for any signs of leaning.
For metal roofs: look for areas of rust, loose fasteners (on exposed-fastener panels), or panels that appear to have lifted at the edges. For tile roofs: look for broken, cracked, or missing tiles. For flat or low-slope roofs: look for standing water patterns (visible as staining), blistering membrane, or debris accumulation.
What to Document
- One photo of each full roof plane
- Close-up photos of any shingles that look different from surrounding areas
- Photos of all visible flashing, especially chimney, skylights, and valleys
- Note the approximate age of the roof if you know it
Gutter and Drainage Assessment
While you are looking at the roofline, assess the gutters:
- Are gutters present along all appropriate eaves?
- Do they appear to be sagging or pulling away from the fascia?
- Is there visible debris accumulation?
- Do downspouts connect all the way to the ground with an extension or underground system?
- Are there splash blocks or other measures to move water away at the downspout terminus?
- After a rain, look for areas where water cascades over the gutter edge rather than flowing to a downspout — this indicates either clogged gutters or a low spot in the gutter slope.
📖 Chapter 24 (Roofing Systems) covers shingle types, flashing details, and roof system anatomy. Chapter 25 (Gutters, Downspouts, and Drainage) covers gutter sizing, slope, and the drainage connection to foundation health.
Decision Framework: Roof
| Finding | Classification | Action |
|---|---|---|
| Uniform shingles, intact flashing, no visible sagging | Good | Document age; schedule professional inspection when roof age exceeds 2/3 of rated lifespan |
| Isolated missing or damaged shingles, intact flashing elsewhere | Fix Soon | Contact a roofing contractor for spot repair |
| Widespread granule loss, curling, or multiple damaged shingles | Urgent | Get roofing estimates within 30 days; active leaks are likely or imminent |
| Any sagging ridge or roof plane | Urgent | Consult a structural engineer; this is not a roofing problem alone |
| Visible flashing separation at chimney or skylights | Fix Soon | Priority repair; this is where most roof leaks originate |
| Gutters full of debris | Fix Within 6 Months | Clean now; add seasonal cleaning to maintenance calendar |
| Gutters pulling away from fascia | Fix Soon | Check hangers; may indicate fascia board rot |
| No downspout extensions, discharge at foundation | Fix Within 6 Months | Add extensions; this is inexpensive and directly affects foundation moisture |
1C: Siding and Exterior Envelope
Walk the perimeter again, this time looking at the wall surface itself rather than the foundation or roofline.
What to Look For
- General condition of the cladding — is the siding intact, secure, and properly lapped? For wood siding: check for cracked, cupped, or rotten boards, and note areas where paint is peeling or missing. For vinyl: look for cracking, impact damage, and sections that have pulled away from the wall. For fiber cement: look for chips, impact damage, and paint condition. For stucco: look for cracks, especially diagonal cracks radiating from window corners.
- Paint or finish condition — peeling paint is not just cosmetic. Paint on wood siding is the primary moisture barrier; bare or peeling sections allow water infiltration that leads to rot.
- Caulking at all penetrations and transitions — anywhere the siding meets a different material (window frame, door frame, outside electrical boxes, hose bibs, dryer vents, utility penetrations) should be caulked and the caulk should be intact, flexible, and adhering to both surfaces. Cracked, shrunk, or missing caulk is one of the cheapest fixes that makes one of the largest differences.
- Windows from the outside — check the glazing compound or sealant at the glass-to-frame interface. Check that the window flashing (the strip of metal or tape above the window that directs water away) is in place and not buckled. Look for water staining on the siding directly below windows, which indicates either failed flashing or failed sill pan drainage.
- Doors from the outside — check the threshold seal, the weatherstripping around the door frame, and the condition of any storm door.
What to Document
- Photo of each full wall face
- Close-up photos of any cracked, missing, or deteriorated caulk
- Close-up photos of any siding damage or paint failure
- Note any areas where siding appears to have been patched or repaired previously (these are worth monitoring more carefully)
📖 Chapter 26 (Siding and Exterior Cladding) covers all siding types, the wall assembly, and what to look for in each. Chapter 5 (Windows and Doors) covers window performance and failure modes.
1D: Site Drainage
Finish your exterior walk by looking at the broader site — not just the house but the land around it.
What to Look For
- Grade slope — reconfirm your observations from the foundation section. Positive drainage (away from the house) is the goal at every point around the perimeter.
- Downspout termination — every downspout should terminate at least 4–6 feet from the foundation, either via an extension, a splash block, or an underground drain pipe. If downspouts drain directly into underground pipes, note whether those pipes discharge to daylight somewhere on the property (look for pipe ends at the lower edges of the lot) or terminate in a dry well.
- Low spots near the foundation — any depression in the grade that collects water will eventually direct that water toward the foundation. Look especially along the drip line of roof overhangs without gutters, and at any point where a concrete walkway or patio meets the house wall. Concrete flatwork often settles away from the house over time, creating a gap that collects water.
- Window wells — basement window wells should have gravel at the bottom for drainage and a cover to keep debris and water out. Well-installed window wells are sloped or drained; a window well full of leaves and standing water is a direct pathway for basement infiltration.
- Surface drainage patterns — after a rainstorm (or using a garden hose to simulate one), observe where water naturally flows. Any water that flows toward the foundation is a problem.
🔵 Improving site drainage is one of the highest-return exterior investments a homeowner can make. Regrading, adding downspout extensions, and clearing drainage swales often cost less than $200–$500 in materials and a weekend of labor, and can eliminate chronic basement moisture problems that otherwise require thousands of dollars in interior drainage systems.
Dave's Exterior Assessment
Dave spent nearly an hour on his exterior walk. The first thing he confirmed was what he already knew: the north gutter had been sagging all summer, and now that the leaves are down, he can see it's full and pulling away from the fascia at the west end. He photographs the fascia closely and sees the wood looks darker than the surrounding area — possibly soft. He adds "check fascia for rot — north side" to his urgent list.
His foundation findings are more reassuring than he expected. The crawlspace foundation — concrete block — has some efflorescence along the west wall (the low side of the lot), but no cracks wider than a hairline. The grade on the south and east sides slopes properly away. On the north side, he added two downspout extensions last spring after reading Chapter 25; water now terminates 6 feet from the wall instead of dumping directly at the foundation. He notes this as an improvement he made this year.
The roof is newer — the previous owner installed asphalt shingles 8 years ago, and the home inspection report from last year says they have significant life left. Dave photographs each plane anyway. He can see from the ground that the boot on the plumbing vent stack on the rear slope is starting to look weathered. He marks it "Monitor/Fix Next Roofing Season."
Assessment Module 2: Mechanical Systems
Allow 60 to 90 minutes for this module. You will need your flashlight, your outlet tester, and your notepad. You will be in the mechanical room, basement, or utility space, and in every room that has accessible electrical outlets.
This module covers the four core mechanical systems: electrical, plumbing supply, drains and sewer, and HVAC. These are the systems that, when they fail, cause the largest and most immediate disruption. Knowing their current condition and age is the most operationally important part of this entire assessment.
2A: Electrical System
⚠️ This assessment is visual only. Do not open the panel cover and touch wiring or components. Do not handle any exposed wiring. If you find exposed wiring during this assessment, add it to your urgent list and do not touch it.
The Panel: Location and Initial Assessment
Find your main electrical panel. In most homes it is in the basement, garage, utility room, or a hallway closet. Document:
- Location: ___________
- Panel brand and model (printed on the inside of the door): ___
- Rated amperage (printed on the main breaker): __ amps
- Panel age (look for a manufacture date inside the door, or estimate from home age): ___
Open the panel door (not the cover — the door is the outer panel, while the cover is the inner panel with the breakers). With the door open, you can see the circuit directory and access the breaker switches without touching any wiring.
Look for:
- Circuit directory — is there a circuit directory on the inside of the door? Is it filled out legibly, and does it appear accurate? Blank or illegible directories are worth mapping; Chapter 13 explains how.
- Breaker condition — do any breakers appear to be in a position between on and off (tripped)? Any that do should be reset (move fully to off, then to on) and monitored to see if they trip again.
- Corrosion or moisture — any rust, moisture staining, or condensation inside the panel is a concern worth flagging for an electrician.
- Panel brand warning — Federal Pacific Electric (FPE/Stab-Lok) and Zinsco panels have documented safety issues. If the panel says either of those names, add a note to your assessment and review Chapter 16. These panels warrant replacement evaluation.
- Double-tapped breakers visible at the edges — if you can see any breaker that has two separate wires attached to it (rather than one), note it. Most residential breakers are designed for one wire per terminal.
Outlet Testing
With your outlet tester, test at least one outlet in every room. The tester will show a pattern of lights corresponding to correct wiring, various fault conditions, or missing ground. Document any outlet that shows an incorrect reading.
GFCI protection is required by code in kitchens, bathrooms, garages, crawlspaces, unfinished basements, outdoor outlets, and any outlet within 6 feet of a water source. Test every GFCI outlet you can find (they have test and reset buttons on the face). Press the test button; the outlet should go dead. Press reset; it should restore. Document any that do not function correctly.
| Room | Outlet Tested | Result | GFCI Present Where Required |
|---|---|---|---|
| Kitchen | |||
| Bathroom 1 | |||
| Bathroom 2 | |||
| Garage | |||
| Basement | |||
| Exterior | |||
| Bedroom 1 | |||
| Bedroom 2 | |||
| Living Room | |||
| Other: |
Visible Wiring Concerns
During this module and the interior walk, note any:
- Extension cords used as permanent wiring (running under rugs, through walls, or permanently plugged in)
- Outlets or switches with cracked or missing covers
- Outlets that feel warm to the touch
- Outlets or switches that spark when used
- Any visible wiring that appears damaged, pinched, melted, or improperly spliced outside of a junction box
📖 Chapter 12 (Electricity Basics), Chapter 13 (The Electrical Panel), Chapter 14 (Wiring, Outlets, and Switches), and Chapter 16 (Electrical Safety) provide context for all findings in this section.
2B: Plumbing Supply
Main Shutoff: Location Confirmed
The single most important plumbing fact you must know — and must be able to act on within seconds during an emergency — is where your main water shutoff is located.
Find it now. Physically turn it and make sure it operates. A shutoff that hasn't been operated in years may be stuck; work it gently back and forth if needed to ensure it will function in an emergency.
Main shutoff location: _______ Valve type (gate valve with wheel handle / ball valve with lever handle): ______ Date last operated: ________
If you have a well: locate the pressure tank and the shutoff at the pressure tank. Note the pump breaker location in your panel directory. Pressure tank location: _______ Pump breaker: Circuit #_____
Water Pressure
Normal household water pressure is 40–80 psi, with 60–70 psi being ideal. Pressure above 80 psi stresses supply lines, fittings, and appliances. Pressure below 40 psi causes functional problems at fixtures.
To test: attach a pressure gauge (available at any hardware store for $10–15) to an outdoor hose bib. Read the gauge with no water running anywhere in the house (static pressure). Record:
Static water pressure: __ psi
If over 80 psi: you should have or need a pressure reducing valve (PRV) on your main supply line. Check for one near your main shutoff; if absent, note it for a plumber.
If under 40 psi: note whether the problem is on the supply side (pressure regulator failure, partially closed shutoff) or a distribution problem. Chapter 6 covers diagnosis.
Pipe Material Identification
Find an exposed supply pipe — in a basement, crawlspace, or mechanical room — and identify the material. Knowing what your pipes are made of helps you understand their likely condition and lifespan.
| Material | Appearance | Typical Era | Expected Lifespan | Notes |
|---|---|---|---|---|
| Copper | Orange/reddish or green (oxidized), rigid | 1950s–present | 50–70 years | Most common and reliable |
| CPVC | Cream or off-white, rigid plastic | 1970s–present | 50–75 years | Reliable; can become brittle with age in some climates |
| PEX | Flexible plastic, red (hot) or blue (cold) | 1990s–present | 40–50+ years | Excellent modern option |
| Galvanized steel | Gray-silver, magnetic, threaded fittings | Pre-1970s | 40–70 years | Corrodes internally; check water pressure and color |
| Polybutylene (PB) | Gray flexible plastic, gray or copper fittings | 1978–1995 | Failed; replacement recommended | Subject of major class action; highly failure-prone |
| Lead | Dull gray, soft (bends easily), found at service entrance in very old homes | Pre-1986 | N/A — replace | Serious health hazard; consult a plumber immediately |
Primary pipe material in your home: _______ Location where identified: ______ Any concerns: ________
🔴 If you find polybutylene pipe (gray flexible plastic, often with gray plastic or copper crimp fittings) in your home, this is a priority issue. These pipes have a high failure rate and are no longer manufactured. Consult a plumber about a whole-house repiping assessment.
Water Heater Condition and Age
Find your water heater. Read the label and note:
- Brand and model: ___________
- Tank size (gallons): ___
- Energy source (gas / electric / heat pump): ___
- Manufacture date: ___ (usually on the label; may also be encoded in the serial number — search "[brand] water heater serial number date" to decode)
- Age: __ years
- Rated recovery rate and first-hour delivery if visible: ___
Inspect the heater visually:
- Any rust staining at the base or on the tank surface?
- Any corrosion at the connections?
- Is the temperature-pressure relief (TPR) valve present, and does it have a discharge pipe running to within 6 inches of the floor or to a drain?
- For gas heaters: is the flue pipe intact, properly connected, and showing no signs of rust or disconnection?
- For gas heaters: is there a combustion air supply to the mechanical room?
- Is there an expansion tank on the cold inlet side? (Required in closed systems — common with pressure reducing valves)
Tank water heaters typically last 8–12 years. Heat pump water heaters last 10–15 years. Tankless units last 15–20 years with proper maintenance. If your heater is within 2–3 years of its expected end of life, note it for planning purposes even if it shows no current symptoms.
📖 Chapter 6 (Water Supply) and Chapter 7 (Hot Water Systems) cover all findings in this section.
2C: Drain and Sewer Assessment
Visible Drain Condition
With your flashlight, inspect every accessible drain pipe you can find — typically in the basement, crawlspace, or under sinks. You are looking for:
- Rust staining at joints (indicates active leaks or chronic sweating)
- White mineral deposits at joints in older cast iron or galvanized drain lines (indicates slow leaks that have dried)
- Evidence of past repairs (couplings, rubber bandits, patches)
- Pipes that appear to slope the wrong direction (drain pipes must slope a minimum of 1/4 inch per foot toward the main)
- Any flexible hose used as drain pipe (this is not code-compliant in permanent installations)
Clean-Out Location
Your drain system has at least one clean-out — a capped pipe fitting that provides access for drain snaking or camera inspection. Locate it.
Main drain clean-out location: ___________ (Most commonly at the base of the main stack in the basement, or at an exterior access point near the foundation)
If you cannot find a clean-out, make a note. Absent or buried clean-outs complicate future drain service significantly.
Slow Drain Check
In each bathroom and the kitchen, run water at full flow for 30 seconds and observe drain rate. A drain that holds water for more than 5 seconds after the faucet is turned off has a partial clog developing. Note any slow drains.
| Location | Drain Rate | Notes |
|---|---|---|
| Kitchen sink | ||
| Bathroom 1 sink | ||
| Bathroom 1 tub/shower | ||
| Bathroom 2 sink | ||
| Bathroom 2 tub/shower | ||
| Basement floor drain | ||
| Laundry drain |
For rarely used drains (floor drains, guest bathroom fixtures): pour a gallon of water down them to ensure the trap is full (dry traps allow sewer gas to enter the home).
Septic-Specific Checks (if applicable)
- Date of last pump-out: ___
- Pump-out interval recommended by your service provider: ___
- Next scheduled pump-out: ___
- Location of septic tank access lids: ___________
- Location of drain field: ___________
- Any soggy ground above drain field? (Y / N): ___
🔴 Soggy ground or lush green grass over the drain field, or sewage odors in the yard, indicate drain field saturation or failure. This requires immediate evaluation by a septic professional. Do not pump the tank as a first response — this does not fix a failed drain field.
📖 Chapter 8 (Drain-Waste-Vent System), Chapter 11 (Sewer Lines and Septic Systems) cover drain and sewer systems in full.
2D: HVAC Assessment
System Identification
Document your heating and cooling equipment:
Heating system type (forced air furnace / hot water boiler / heat pump / radiant / other): __ Fuel source (natural gas / propane / oil / electric): __ Brand and model: _______ Approximate age: __ years Last professional service date: _______
Cooling system type (central AC with outdoor condenser / heat pump / mini-split / window units / none): ___ Brand and model: _______ Approximate age: __ years Last professional service date: _______
Filter Condition
Find your air filter. It is typically at the air handler or furnace (in a slot on the return air side) or at a return air grille in the wall or ceiling.
- Filter location: ___________
- Filter size (printed on the frame): ___
- Current filter condition (clean / dirty / very dirty — replace now): ___
- Date of last filter change: ___
- MERV rating (if visible on filter): ___
If the filter is dirty: replace it before completing this assessment. It is a 5-minute task and immediately improves system performance and air quality. Filters for most systems should be replaced every 1–3 months depending on filter type and household factors (pets, occupants, air quality concerns).
💡 A clogged filter is the single most common cause of HVAC problems. It reduces airflow, causes the system to work harder, can freeze AC coils in summer and overheat heat exchangers in winter, and significantly shortens equipment life. This one maintenance item has an outsized effect on system longevity.
Thermostat Type
- Thermostat brand/model: ___________
- Type (manual / programmable / smart): ___
- Battery-powered or wired: ___
- If smart: is the schedule currently programmed?: ___
Basic Airflow Check
With the system running in heating or cooling mode, visit each supply air register in the home. You should feel airflow from every register. Note any rooms with noticeably weak or absent airflow:
Room / Register with weak/no flow: ___________
Weak airflow from isolated registers may indicate a closed damper (check the register damper lever), a disconnected or collapsed duct section, or a blockage. Whole-system weak airflow usually indicates a clogged filter, a blower issue, or significant duct leakage.
Also check that return air grilles are present and not blocked by furniture, rugs, or stored items. Blocked returns are a common cause of pressure imbalance and reduced comfort.
Equipment Condition
- For furnaces: any visible rust staining on the exterior of the unit? Any smell of combustion gases when the unit runs? Any visible cracks in the heat exchanger cover? (If yes to either of the last two: this is urgent — see Chapter 18.)
- For outdoor AC condenser or heat pump: is the unit level? Is there clearance of at least 12 inches on all sides? Is vegetation growing into the fins? Is the unit making unusual noises when running?
- For boilers: any visible leaks at joints? Pressure gauge reading (normal is 12–15 psi cold, up to 20 psi when hot)?
📖 Chapters 18–23 cover heating, cooling, ductwork, thermostats, air quality, and HVAC efficiency ratings.
Priya and Marcus: Establishing the Renovation Baseline
For Priya and Marcus, the mechanical assessment is the heart of the capstone exercise. They are not assessing to maintain — they are documenting what they are starting with, so that after the renovation, every upgrade is clearly recorded.
Their HVAC findings are sobering but expected: the original 1964 gas furnace was replaced in 2004, so the current unit is 22 years old and well past its typical service life. It runs, but barely — the heat exchanger has visible rust, a contractor confirmed last year that the secondary heat exchanger is cracked, and Marcus has been smelling a faint metallic odor that now makes more sense. This goes directly onto their urgent list: the furnace must be replaced before the renovation proceeds, both for safety and because the duct redesign planned for the renovation cannot be sized around a failing unit.
The electrical panel is a 1960s 100-amp fuse box — functional but inadequate for the modern loads they plan to add. Panel upgrade to 200-amp service is already in the renovation scope; documenting the existing condition with photos provides a clear before/after record.
The plumbing supply is copper throughout, in good condition. The water heater is 14 years old. They note it for replacement as part of the renovation package.
Assessment Module 3: Attic and Crawlspace
Allow 30 to 60 minutes. You will need your flashlight or headlamp, your phone for photos, and appropriate clothing — attics are hot in summer and cold in winter; crawlspaces are dirty. If you have never been in your attic or crawlspace before, this is the most important new territory this assessment will cover.
3A: Attic Inspection
Access the attic through the hatch (typically in a hallway ceiling or in a closet). Most residential attic hatches are not designed for regular occupancy — you may be stepping onto rough framing with no flooring, with fiberglass insulation below you. Move carefully, stepping only on joists or on any flooring that has been laid, never between joists where you could step through the ceiling below.
Safety note: In summer, attic temperatures can exceed 150°F. Do not enter in the middle of a summer day. Early morning is the best time.
Insulation Assessment
- Type of insulation (batt fiberglass / blown fiberglass / cellulose / spray foam / combination): ___
- Approximate depth across the attic floor: __ inches
- Recommended depth for your climate zone (check the Department of Energy map): __ inches
- Are there gaps, bare spots, or disturbed areas where insulation is missing?: (Y / N) ___
- Is insulation present at the hatch? (Often missed): (Y / N) ___
- Is the attic floor air-sealed below the insulation? (Visible gaps, penetrations from wiring or plumbing not sealed): ___
📊 In most U.S. climate zones, the recommended insulation depth for an attic floor is R-38 to R-60. For blown cellulose, that is roughly 10–15 inches. For blown fiberglass, roughly 12–19 inches. If your attic is significantly below this, adding insulation is one of the most cost-effective energy improvements available. The DOE estimates that air sealing and insulation upgrades in the attic reduce heating and cooling costs by 10–20% in many homes.
Ventilation Assessment
Look for intake and exhaust ventilation. Intake air typically enters at the soffits (look for small vents or continuous perforated soffit). Exhaust air exits at ridge vents, gable vents, or box vents near the roof peak.
- Soffit vents present and clear (not blocked by insulation that has been blown against the eaves)?: ___
- Ridge or gable exhaust vents present?: ___
- Any powered attic fans?: ___
- Does the attic feel as though it has reasonable airflow? (A well-ventilated attic in summer will be hot but not stagnant; there will be some air movement): ___
A common attic insulation mistake is allowing blown insulation to block soffit vents, effectively eliminating all intake air. This causes heat and moisture buildup. Insulation baffles (cardboard or foam channels stapled between rafters at the eave) maintain the airflow path. Look for them.
Signs of Moisture and Pest Activity
- Any staining on the roof sheathing (dark patches, discoloration): ___
- Any daylight visible through the roof sheathing?: ___
- Condensation staining on rafters or sheathing?: ___
- Any evidence of rodent activity (droppings, nesting material, chewed insulation or wood)?: ___
- Any evidence of insect activity (carpenter ant frass — sawdust-like debris — or termite tubes)?: ___
Roof sheathing with extensive dark staining, soft spots, or visible daylight indicates either a past leak (possibly resolved) or an active leak. Document with photos and note the location relative to the roof above.
🔴 Termite shelter tubes — small, mud-colored tubes running along wood surfaces — require immediate professional evaluation. Do not disturb them; the evidence helps the inspector.
Structural Framing
You are not a structural engineer, but you can note obvious concerns: broken or cracked rafters or joists, notches cut too deep for wiring runs, framing members that appear out of plane with their neighbors. Any obviously damaged framing should be flagged for professional evaluation.
📖 Chapters 3 (Framing), 4 (Insulation), and 24 (Roofing Systems) provide context for attic findings.
3B: Crawlspace Inspection (If Applicable)
If your home has a crawlspace, this inspection is essential and often the most neglected part of homeownership. Crawlspaces harbor moisture problems, insulation deficiencies, rot, and pest activity that can go undetected for years while quietly causing structural and air quality problems in the living space above.
Access the crawlspace through the access hatch (typically on an exterior wall or through a floor hatch in a closet). Wear old clothes and knee pads if you have them.
What to Look For
- Vapor barrier — is there a plastic sheet (vapor barrier) covering the ground surface of the crawlspace? If so, is it continuous, overlapping at seams by at least 12 inches, and extending up the foundation walls? A torn, incomplete, or absent vapor barrier significantly increases ground moisture entering the crawlspace.
- Moisture condition — does the crawlspace feel and smell dry, or is there a musty odor, visible condensation, or standing water?
- Insulation — is insulation present between the floor joists above? Is it intact and in contact with the subfloor, or is it sagging, falling down, or absent?
- Wood condition — using your flathead screwdriver, probe the floor joists, sill plates (the wood members that rest directly on the foundation wall), and any other accessible wood. Sound wood is firm and resists the probe. Soft, spongy wood that yields easily is rotting.
- Pest evidence — termite tubes on foundation walls or wood members, rodent droppings, or any visible insect damage.
- Ductwork and plumbing — if ductwork or plumbing supply lines run through the crawlspace, check for visible leaks, disconnected duct sections, or pipes with inadequate clearance from the ground.
Vapor barrier present?: __ Vapor barrier condition (continuous / partial / none): __ Moisture or musty odor?: __ Wood condition (probe test results): __ Pest evidence?: ___
📖 Chapter 2 (Foundations) and Chapter 32 (Basements and Crawlspaces) cover crawlspace moisture dynamics, encapsulation, and structural concerns.
Isabel's Attic and Crawlspace Assessment
Isabel's townhouse has neither a traditional attic nor a crawlspace — it is slab-on-grade, with a flat roof section over the rear addition and a conventional attic over the front two-story section. The front attic is accessed by a hatch in the master bedroom closet, which she has never opened since moving in.
What she finds is instructive. The insulation is original 1982 fiberglass batt — approximately 5 inches of R-11 material in a climate zone that recommends R-49. There are no insulation baffles at the soffit vents, and blown-in insulation from a previous (partial) upgrade has blocked most of the soffit vent openings on the north side. There is staining on the sheathing above the rear wall — old, it appears, with no active leak visible — but worth noting for the roofer.
The discovery she didn't expect: a disconnected bathroom vent duct. Somewhere between 1982 and today, the upstairs bathroom exhaust fan was disconnected from its duct, so the fan has been exhausting moist air directly into the attic for an unknown number of years. The staining above the rear wall makes more sense now. She photographs the disconnected duct, the insulation deficiency, and the blocked soffits. All three go on her repair list.
Assessment Module 4: Interior Walk
Allow 60 to 90 minutes. Walk room by room, floor by floor. Start at the top of the house and work down, because moisture problems and structural issues often show their first symptoms on upper floors and travel downward.
4A: Walls, Ceilings, and Floors
In Every Room, Look For
- Ceiling stains — any discoloration, rings, or soft spots in the ceiling material. Water stains can be old or active; run your finger across one — if the surface feels soft or the paint comes off easily, it may be active. If it is hard and painted over, it may be historic.
- Ceiling cracks — hairline cracks from settling are common. Cracks that run continuously from a corner of a room, or that are wide enough to catch a credit card edge, or that correspond to obvious structural lines (like a beam location) deserve attention.
- Wall cracks — diagonal cracks from window and door corners (especially when they correspond to diagonal cracks at the same corner on both sides of the wall) can indicate foundation movement. Note width and direction.
- Stains on walls near the floor — may indicate past or ongoing moisture intrusion from outside or from a plumbing event.
- Paint and finish condition — peeling or bubbling paint, especially in bathrooms and near exterior walls, often indicates moisture behind the surface.
Door and Window Operation
Open and close every door in the house. They should move freely, latch without force, and show no evidence of being planed or shaved to fit. Doors that stick, bind, or show diagonal rubbing marks at the top corner may indicate frame movement — which is normal in wood-framed houses with seasonal moisture changes, but which can also indicate foundation settlement or load path problems if severe or recent.
Open and close every operable window. They should move smoothly in their tracks. Note any:
- Painted-shut windows (a fire egress concern in bedrooms)
- Fogged double-pane glass (failed seal — the insulating air gap has been breached)
- Broken hardware
- Windows that rattle significantly in their frames (weatherstripping failure)
Floor Condition
- Walk slowly across every floor surface, particularly in areas that receive moisture (kitchens, bathrooms, near exterior doors). Soft spots, bounce, or spongy areas underfoot indicate subfloor or framing deterioration.
- Note squeaky areas (minor but worth documenting; see Chapter 29 for repair approaches).
- In tiled areas, tap individual tiles with your knuckle. A hollow sound (as opposed to a solid thud) indicates the tile has debonded from the substrate — an early warning that cracking and failure are coming.
4B: Kitchen and Bathrooms
These rooms concentrate moisture, mechanical connections, and the highest rates of maintenance issues in any home. Give them extra attention.
Kitchen
- Under the sink: open the cabinet and look at the drain connections, supply lines, and the cabinet floor. Any signs of moisture (soft cabinet floor, water staining, discoloration, or the musty smell of chronic dampness)? Examine the P-trap and the connections to the wall for rust staining or mineral deposits at joints.
- Range hood: is it vented to the exterior (you can feel air movement from a vent cap outside when the hood runs) or recirculating (no exterior vent — it only filters grease, does not exhaust moisture or cooking odors)?
- Dishwasher: look at the kick plate area below the door for any signs of water on the floor.
Bathrooms
- Ventilation: run the exhaust fan. Hold a single sheet of toilet paper near the grille — it should be drawn toward the fan. If not, the fan may be inadequate, the duct may be blocked or disconnected (as Isabel discovered), or the fan motor may have failed. A bathroom without functional exhaust ventilation is a moisture problem waiting to develop.
- Caulk and grout: inspect the caulk lines at the tub/shower surround — at all inside corners and along the bottom where the surround meets the tub deck. Cracked, missing, or mold-blackened caulk that has separated from one surface is an active water infiltration pathway. Look carefully at the floor-to-wall joint at the front of the shower entry (this is the highest-failure point in most shower installations).
- Grout condition: tap tile surfaces and note any hollow areas. Examine grout lines for cracking or missing sections.
- Under-sink cabinet: same inspection as kitchen — look for moisture evidence at the drain connections and supply lines.
- Toilet base: press around the base of the toilet where it meets the floor. Soft, spongy flooring, or any give in the toilet itself, indicates wax ring failure and possible subfloor damage.
Ventilation function summary:
| Location | Fan Present | Fan Works | Ducted to Exterior |
|---|---|---|---|
| Bathroom 1 | |||
| Bathroom 2 | |||
| Kitchen range hood | |||
| Laundry room |
📖 Chapter 30 (Kitchen) and Chapter 31 (Bathrooms) cover these systems in depth.
4C: Basement Assessment
- Moisture check: walk the full perimeter of the basement, looking at the base of the walls where they meet the floor. Efflorescence, staining, flaking paint, or damp spots indicate water infiltration. Check all four walls.
- Floor condition: look for cracks in a concrete floor. Hairline cracks are common and typically not structural. Cracks that are wide enough to fit a nickel edge (greater than 1/16 inch) or that have an obvious vertical offset (one side higher than the other) should be noted.
- Radon test status: has your home been tested for radon? If so, document the date and result. If not, add a radon test to your immediate action list — test kits are available for $15–30 at hardware stores or online, and testing is the only way to know your exposure level.
Radon test date: __ Radon test result: _ pCi/L (EPA action level is 4.0 pCi/L; remediation is recommended at or above this level)
📖 Chapter 32 (Basements and Crawlspaces) and Chapter 34 (Hazardous Materials — including radon) provide full context.
Assessment Module 5: Safety Systems
Allow 15 to 30 minutes. This is the shortest module but argues for some of the most important action items. Safety systems protect lives — not just property. They receive attention in this assessment because most homeowners underinvest in them and many households have detectors that are expired, incorrectly placed, or non-functional.
5A: Smoke Detectors
Walk every level of your home and locate every smoke detector.
Location requirements (minimum; local codes may require more): - At least one on every level of the home, including the basement - Outside each sleeping area (in the hallway) - Inside each bedroom (required in most jurisdictions for new construction; strongly recommended everywhere)
For each detector found, record:
| Location | Type (Ionization / Photoelectric / Combo / Unknown) | Age / Date on Unit | Last Tested | Battery Status | Hardwired or Battery |
|---|---|---|---|---|---|
Test every detector by pressing and holding the test button until it sounds. A detector that does not sound when tested should be replaced immediately.
Smoke detectors should be replaced every 10 years regardless of whether they appear to function. The sensing chamber degrades over time. The manufacture date is usually printed inside the cover or on the back of the unit.
💡 There are two types of smoke detector technology. Ionization detectors respond faster to fast-flaming fires. Photoelectric detectors respond faster to slow, smoldering fires — which are more common in residential settings and more often fatal. For maximum protection, every sleeping area should have a photoelectric or combination detector. If you have ionization-only detectors, consider replacing them or adding photoelectric units.
5B: Carbon Monoxide Detectors
CO detectors are required within 15 feet of each sleeping area in most jurisdictions, and on every level of a home that has any gas appliance, attached garage, or fuel-burning heating system.
| Location | Age / Date on Unit | Last Tested | Battery Status |
|---|---|---|---|
CO detectors typically have a 5–7 year lifespan for the electrochemical sensing cell. After that, they may not reliably detect CO even if the unit appears to function. Check the replace-by date printed on the unit.
Test every CO detector as you did the smoke detectors.
🔴 If a CO detector sounds during normal home operation (not during a test), evacuate all occupants immediately, call 911 from outside the building, and do not re-enter until emergency responders have cleared the building. Carbon monoxide is odorless and colorless; the detector is your only warning.
5C: Fire Extinguisher
- Location of fire extinguisher(s): ___________
- Type (A, B, C rating — listed on the label; an ABC extinguisher covers ordinary combustibles, flammable liquids, and electrical fires): ___
- Pressure gauge reading (needle should be in the green zone): ___
- Last inspection or hydrostatic test date: ___
A fire extinguisher with a needle in the green zone is not necessarily fully functional — the actual propellant may have settled. Stored-pressure extinguishers should be taken to a fire equipment service company for inspection every 6 years and hydrostatic testing every 12 years.
At minimum, every home should have a working ABC extinguisher in the kitchen. An additional unit in the garage or mechanical room is strongly recommended.
5D: Egress Routes
From each bedroom in the home, identify two ways out:
- The primary egress: through the bedroom door
- The secondary egress: through a window (or, in below-grade rooms, a full-size egress window)
For the secondary egress window in each bedroom: can it be opened from the inside without tools, and is the opening large enough to climb through? Minimum egress window requirements are typically 5.7 square feet of clear opening, with a minimum clear height of 24 inches and minimum clear width of 20 inches, with a sill height no more than 44 inches above the floor.
| Bedroom | Door egress clear | Window egress functional | Window meets size requirements |
|---|---|---|---|
| Bedroom 1 | |||
| Bedroom 2 | |||
| Bedroom 3 |
📖 Chapter 35 (Fire Safety) covers smoke detector types and placement, fire extinguisher use, egress requirements, and CO detector placement in detail.
Dave's Safety Module Findings
Dave's safety module reveals a gap he didn't expect. He has three smoke detectors — one on each level of the ranch — but all three are the original units that were in the house when he purchased it, and the home inspection report from last year estimated them at 9 years old. They are past replacement age. Two are ionization type; one is a combination unit. He tests all three; one upstairs unit fails to sound. He orders four new combination (dual-sensor) units the same day.
The CO detector situation is better: he installed two new units last spring, prompted by getting his oil furnace serviced and the technician mentioning CO risks. Both test correctly.
His fire extinguisher was in the kitchen when he moved in — an old, undersized unit with a faded label. He cannot read the type or the manufacture date. It goes in the trash; he orders a new ABC extinguisher.
His one bedroom presents a window egress concern: the storm window is jammed in the track and cannot be opened from inside without significant force and a screwdriver. He adds this to his immediate action list. A jammed egress window in a bedroom is a life-safety issue.
Assessment Module 6: Documentation
This module is done at a desk, not in the house. You have completed the physical inspection. Now you convert your notes and photos into a structured, usable record.
The Home Assessment Summary Sheet
Fill in one row per major system. Use your notes from the preceding modules. Be honest about condition ratings — the purpose of this document is to give you an accurate picture, not a flattering one.
Condition Codes: - G = Good: No action required; monitor on normal maintenance schedule - M = Monitor: No immediate action, but check again in 6–12 months; photograph now for comparison - FS = Fix Soon: Address within 6 months - U = Urgent: Address within 30 days; may involve safety risk or active damage
HOME ASSESSMENT SUMMARY SHEET
Property Address: _______ Assessment Date: ___ Assessor: ______ Weather Conditions During Inspection: ______
| System | Specific Finding | Condition (G/M/FS/U) | Notes | Photo Reference | Chapter Reference |
|---|---|---|---|---|---|
| Foundation — cracks | Ch. 2, 27 | ||||
| Foundation — drainage/grade | Ch. 25, 27 | ||||
| Roof — shingles/surface | Ch. 24 | ||||
| Roof — flashing | Ch. 24 | ||||
| Gutters | Ch. 25 | ||||
| Siding | Ch. 26 | ||||
| Exterior caulking | Ch. 26 | ||||
| Windows — exterior | Ch. 5 | ||||
| Doors — exterior | Ch. 5 | ||||
| Site drainage | Ch. 25, 27 | ||||
| Electrical panel | Ch. 13, 16 | ||||
| Wiring/outlets | Ch. 14, 16 | ||||
| GFCI protection | Ch. 16 | ||||
| Plumbing main shutoff | Ch. 6 | ||||
| Water pressure | Ch. 6 | ||||
| Pipe material | Ch. 6 | ||||
| Water heater | Ch. 7 | ||||
| Drains — flow | Ch. 8 | ||||
| Drain clean-out | Ch. 8 | ||||
| Sewer/septic | Ch. 11 | ||||
| Heating system | Ch. 18 | ||||
| Cooling system | Ch. 19 | ||||
| HVAC filter | Ch. 22 | ||||
| Thermostat | Ch. 21 | ||||
| HVAC airflow | Ch. 20 | ||||
| Attic — insulation | Ch. 4 | ||||
| Attic — ventilation | Ch. 20 | ||||
| Attic — moisture/pests | Ch. 34 | ||||
| Crawlspace — vapor barrier | Ch. 32 | ||||
| Crawlspace — moisture | Ch. 32 | ||||
| Crawlspace — wood condition | Ch. 2 | ||||
| Interior walls/ceilings | Ch. 28 | ||||
| Floors | Ch. 29 | ||||
| Windows — interior operation | Ch. 5 | ||||
| Doors — interior operation | Ch. 28 | ||||
| Kitchen ventilation | Ch. 30 | ||||
| Kitchen under-sink plumbing | Ch. 30 | ||||
| Bathroom ventilation | Ch. 31 | ||||
| Bathroom caulk/grout | Ch. 31 | ||||
| Bathroom under-sink plumbing | Ch. 31 | ||||
| Basement moisture | Ch. 32 | ||||
| Radon test status | Ch. 34 | ||||
| Smoke detectors | Ch. 35 | ||||
| CO detectors | Ch. 35 | ||||
| Fire extinguisher | Ch. 35 | ||||
| Egress windows | Ch. 35 |
The Repair Priority Matrix
Transfer every finding rated FS or U from your Summary Sheet into this matrix. Add rough budget estimates based on your research — a phone call to a local contractor, a search on a home repair cost site, or the guidance in the relevant chapter.
Be conservative (estimate on the high side) when you don't have specific quotes. The purpose of this estimate is to help you plan, not to lock in a number.
Priority 1 — Urgent (Address Within 30 Days) These items involve active safety risk, active water or structural damage, or systems at imminent failure.
| Item | Location | Why Urgent | Budget Estimate | Pro or DIY | Target Date |
|---|---|---|---|---|---|
| $ | |||||
| $ | |||||
| $ | |||||
| $ |
Priority 2 — Fix Soon (Address Within 6 Months) These items are not immediately dangerous but will worsen or become more expensive if deferred.
| Item | Location | Risk of Deferral | Budget Estimate | Pro or DIY | Target Date |
|---|---|---|---|---|---|
| $ | |||||
| $ | |||||
| $ | |||||
| $ | |||||
| $ |
Priority 3 — Fix Within 2 Years These items are real but not urgent — systems approaching end of life, cosmetic issues with functional consequences, or improvements that will save money over time.
| Item | Location | Notes | Budget Estimate | Pro or DIY | Target Date |
|---|---|---|---|---|---|
| $ | |||||
| $ | |||||
| $ | |||||
| $ |
Priority 4 — Monitor These items are not problems yet but warrant observation. Record your current-state photo reference and set a date to re-check.
| Item | Location | Current Condition Description | Photo Reference | Re-Check Date |
|---|---|---|---|---|
Total Estimated Investment: - Urgent: $__ - Fix Soon: $_ - Fix Within 2 Years: $__ - Grand Total: $_
📊 Most homeowners doing this assessment for the first time find that the Priority 1 and 2 lists are longer and more expensive than they expected. This is not unusual — it reflects years of deferred maintenance that the previous inspection did not catch or the new owner did not have context to understand. The value of knowing is that you can plan rather than react. A $3,000 furnace replacement you budget for over eight months is very different from a $3,000 emergency on a cold December night.
Emergency Information Summary
This section should be on a single printed sheet, laminated if possible, and stored in two places: inside the cover of your home binder and somewhere visible in your home (inside a kitchen cabinet door is a common choice).
HOME EMERGENCY INFORMATION
Property Address: ___________
MAIN WATER SHUTOFF Location: _______ Valve type: ___ Notes (e.g., may be stiff; turn counterclockwise to close): _________
WATER METER SHUTOFF (at street) Location: _______ Tool required (meter key / curb key): _______
MAIN ELECTRICAL SHUTOFF Panel location: _______ Main breaker is: [top of panel / bottom of panel / exterior disconnect] To cut all power: _________
GAS SHUTOFF — MAIN Location of gas meter: _______ Shutoff tool required (adjustable wrench / gas key): _______ ⚠️ Only shut off gas if you suspect a leak or emergency. Once off, only a licensed gas technician should turn it back on.
HVAC EMERGENCY SHUTOFF Furnace power switch location (usually on the unit itself or on the wall nearby): _______ Furnace gas shutoff location (usually on the gas line near the unit): _________
WELL PUMP SHUTOFF (if applicable) Breaker in panel: Circuit # _ Label: _____ Pressure tank location: _________
SEPTIC SYSTEM (if applicable) Tank access lid location: _______ Last pump-out date: ___ Service provider: ______ Phone: ______
UTILITY EMERGENCY CONTACTS Gas utility: _______ Emergency: ___ Electric utility: ______ Emergency: __ Water utility: ______ Emergency: ______
LOCAL EMERGENCY CONTACTS Non-emergency police: __ Fire non-emergency: __ Poison control: 1-800-222-1222
TRUSTED CONTRACTORS Plumber: _______ Phone: ___ Electrician: ______ Phone: __ HVAC: ______ Phone: __ General contractor: ______ Phone: ______
Your Home's Baseline Record
This document, once completed, is the most valuable single piece of paper (or digital file) associated with your home. It is what a smart buyer would ask to see before making an offer. It is what makes your contractor conversations more productive. It is what lets you — two years from now — check whether the crack in the northeast corner has grown.
HOME BASELINE RECORD
Property Address: _______ Date of Baseline Assessment: ___ Assessed by: _________
BASIC PROPERTY INFORMATION Year built: __ Foundation type (slab / crawlspace / basement / combination): __ Above-grade square footage: __ Framing type (wood platform / steel / timber / other): __ Number of stories: ___
MAJOR SYSTEM INSTALLATION DATES AND AGES
| System | Brand/Model | Year Installed | Age at Assessment | Source of Date |
|---|---|---|---|---|
| Roof — shingle layer | ||||
| Gutters | ||||
| Windows (if replaced) | ||||
| Exterior doors | ||||
| Siding (if replaced) | ||||
| Electrical panel | ||||
| Water heater | ||||
| Furnace / boiler | ||||
| Central AC / heat pump condenser | ||||
| Air handler / coil | ||||
| Ductwork (if replaced) | ||||
| Attic insulation (current layer) | ||||
| Kitchen appliances | ||||
| Washer / Dryer |
RENOVATION AND IMPROVEMENT HISTORY (Document all known work — purchased home history, your own work, and contractor work)
| Year | Work Performed | Who Did It (Owner / Contractor Name) | Permit Obtained | Cost (if known) |
|---|---|---|---|---|
| Y / N | ||||
| Y / N | ||||
| Y / N | ||||
| Y / N | ||||
| Y / N | ||||
| Y / N |
KNOWN ISSUES AT TIME OF BASELINE Document any known problems, deferred maintenance items, or areas of concern — even items not yet on the repair list.
HAZARDOUS MATERIAL HISTORY - Lead paint test performed?: (Y / N) _ Date: Result: __ - Lead paint disclosure received from seller?: (Y / N) - Asbestos test performed?: (Y / N) Date: _ Result: ___ - Asbestos encapsulated or removed? Where, when, by whom?: ______ - Radon test performed?: (Y / N) Date: _ Result: __ pCi/L - Radon mitigation system installed?: (Y / N) By whom: ________
MAINTENANCE LOG (Use this section to record each maintenance event going forward — this becomes the living history of your home's care)
| Date | System | Work Performed | By (Owner / Contractor) | Cost | Next Service Due |
|---|---|---|---|---|---|
Priya and Marcus: The Renovation Baseline in Practice
Priya creates a folder on their shared drive called "Pre-Renovation Baseline — [Address]" and photographs every room, every mechanical system, every accessible space, and every wall surface that will be opened during the renovation. The goal is unambiguous: after the renovation, there will be no question about what was found, what was replaced, and what was left untouched.
Marcus focuses on the hazardous materials section. Their home was built in 1963, which means lead paint is essentially certain on older painted surfaces, and asbestos is possible in floor tile, pipe insulation, and the old duct tape on the original ductwork. He calls an industrial hygienist to do a full-home survey before the renovation starts — not because they don't already know materials are there, but because having a professional-grade document showing what was tested, where, and the results is valuable for insurance, for the contractor's safety planning, and for the eventual sale of the home. This goes into the baseline record under Hazardous Material History.
Their Baseline Record, when complete, spans 14 pages of notes, 217 photographs organized by system, and a renovation scope document cross-referenced to the baseline findings. It is, Marcus notes, more organized documentation than either of them has ever created for anything. It also reveals a detail that changes their project: the permit history from the county records office shows that a bathroom addition in the 1980s was never permitted. This means there may be uninspected and non-code-compliant plumbing and electrical in that bathroom — which affects how the renovation contractor needs to approach it.
After the Capstone: Building Your Maintenance Plan
You have completed the assessment. You have a baseline record, a repair priority matrix, an emergency summary, and a photograph archive. That is more than most homeowners accumulate in years of ownership.
The next step is to convert the action items into calendar entries.
Turning Your Priority Matrix Into Calendar Events
For every item in Priority 1 (Urgent), schedule a specific action within the next 30 days. That means either a phone call to a contractor or a specific date to do the work yourself. Put it on your calendar.
For every item in Priority 2 (Fix Soon), set a specific month — not a vague "sometime in the next six months" but March or April, so it actually happens.
For Priority 3 items, assign them to a specific quarter of the next two years. If you have a "Replace water heater — expected 2026" item, put a calendar reminder 18 months out to get bids and plan the budget.
The maintenance calendar structure from Chapter 40 is the right home for all the ongoing maintenance items this assessment reveals. If you have not yet read Chapter 40, do so now — your assessment findings will map directly to the seasonal task lists there.
When to Repeat This Assessment
Annually: A lighter version of this assessment — exterior walk plus a quick interior check of the highest-concern items from this baseline — should happen every year. The investment is 1–2 hours. The value is catching new issues before they develop.
Before any major renovation: A full baseline assessment (like Priya and Marcus's) documents what existed before work started. This protects you in disputes with contractors and establishes what was found versus what was created by the renovation.
Before buying or selling: The same framework applies when evaluating a home you are considering purchasing. Capstone 3 (Buying a Home — What to Actually Look For) adapts this assessment for the buyer context.
After any significant event: A major storm, a flood, an ice storm with ice dams, an extended power outage, or a seismic event all warrant a targeted re-inspection of relevant systems.
Keeping the Record Current
A home record that is updated once and then ignored does not stay useful for long. The goal is a living document.
Every time a contractor completes work on your home, add it to the maintenance log. Every time you change the HVAC filter, note the date and the filter condition. When you have the furnace serviced, staple the technician's report to the relevant page of the binder. When you re-caulk the tub surround, note it.
In five years, you will have a document that tells the complete story of your home's care. In ten years, you will have something invaluable — a record that clearly shows prospective buyers, insurance adjusters, and contractors that this home has been owned and cared for by someone who paid attention.
That is what this assessment is the beginning of. Not a single event, but a practice.
A Final Note from Our Three Households
Isabel closed her assessment binder on a Sunday afternoon and looked around her townhouse with a different kind of attention than she had brought to it before. The disconnected duct in the attic bothered her most — not because it was the most expensive thing she had found, but because she was an architect who specialized in building performance, and she had been exhausting moisture directly into her own attic for three years without knowing it. She scheduled the HVAC contractor for the following week. She also scheduled a structural engineer to look at the northeast corner crack. These were not decisions she had been avoiding; she simply had not had the framework to know they needed to be made. She did now.
Dave sat with his completed matrix and saw something he had not expected to feel: satisfaction. He had spent a year getting beaten up by a house that was smarter and more complicated than he was. But looking at the list, he could see that he had actually fixed more than he had deferred. The well pump he rebuilt in July. The crawlspace vapor barrier he laid in August. The smart thermostat he installed last fall. The assessment had given him a way to count what he'd done, not just worry about what remained. He posted his priority list on the refrigerator and ordered three new smoke detectors.
Priya sent Marcus the completed shared document at 11pm on a Wednesday. He opened it, scrolled through the photographs and notes and system ages, and replied with a single line: "Now I feel like we actually know what we bought." They did. And that was exactly the point.
Before proceeding to Capstone 2 (Planning a Major Renovation), ensure that all Priority 1 items from this assessment have been scheduled. The renovation planning process is significantly more effective when the baseline condition is fully known and actively monitored items are already in motion.
Capstone 3 (Buying a Home — What to Actually Look For) adapts the frameworks in this assessment for the pre-purchase evaluation context and introduces additional red-flag analysis for buyers who are still in the decision-making process.