Home Inspection Checklist for Buyers
A system-by-system checklist from a Realtor who’s also a licensed home inspector: what to look for, what counts as a red flag, and what the fix usually costs.
A home inspection checklist for buyers is your walk-through map of the eight systems that decide whether a house is a smart buy or a money pit: the roof, foundation, electrical, plumbing, heating and cooling, moisture, exterior, and safety items.
- Walk every system in order so nothing gets missed; the costliest problems hide in the roof, foundation, and basement.
- Learn the red flags that justify a price credit or a walk-away before you’re emotionally attached.
- Budget the big-ticket replacements: a roof, furnace, or A/C can each run several thousand dollars.
- A checklist doesn’t replace a licensed inspection; it tells you which homes are even worth inspecting.
A good home inspection checklist for buyers does one thing better than anything else: it keeps you honest before you fall in love with a house. I’m a licensed home inspector as well as a Realtor, and I read houses for a living, so this is the same order I walk a home in, from the roof down to the outlets. Use it at your first showing to catch the expensive problems early, then again to make sense of your inspector’s report once you’re under contract.
None of this replaces a licensed home inspection after you’re under contract. What it does is help you tour smarter, so you only pay for a full inspection on a house that’s actually worth buying. Here’s what I’m looking at, system by system.
How to use this home inspection checklist
You don’t need tools or expertise to get value out of this: just a method. Work top-down, biggest-ticket items first, and separate what’s expensive from what’s merely ugly.
- Walk the systems in the order below: structure and systems first, cosmetics last.
- Ask the age of the roof, furnace, A/C, and water heater, and write the numbers down.
- Bring a flashlight and your phone; photograph anything that looks off for later.
- Separate cosmetic from structural: dated paint is cheap, a wet basement is not.
The 8-system home inspection checklist
Here is the full checklist in one place. The “typical cost” column is a Chicago-area ballpark to help you budget; real numbers swing with the home’s size, access, and how bad the problem is.
| System | What to check | Red flag | Typical repair / replace |
|---|---|---|---|
| Roof & attic | Age; missing or curling shingles; flashing; attic for leak stains and ventilation | Active leaks, multiple shingle layers, widespread staining, a sagging deck | Full replacement $8,000–$20,000+; minor repairs $300–$1,500 |
| Foundation & structure | Wall cracks; uneven or sloping floors; sticking doors; basement and crawlspace | Horizontal or stair-step cracks, bowing walls, active water intrusion | Major repair $5,000–$25,000+; crack sealing $500–$3,000 |
| Electrical | Panel brand and amperage; wiring type; GFCI in kitchens and baths; scorch marks | Known-hazard panel brands, knob-and-tube or aluminum branch wiring, burnt outlets | Panel replacement $1,500–$4,000; full rewire $8,000–$20,000 |
| Plumbing | Under-sink leaks; water pressure; pipe material; water-heater age on the label | Galvanized or polybutylene pipe, slow drains or backups, a heater 12+ years old | Water heater $1,200–$2,500; repipe $4,000–$15,000 |
| Heating & cooling | Furnace and A/C age and service tags; thermostat test; even airflow at the vents | Equipment past ~15–20 years, a cracked heat exchanger, no recent service | Furnace $4,000–$8,000; central A/C $4,000–$8,000 |
| Water & moisture | Basement walls and floor; grading; downspouts; sump pump; musty smell; radon | Standing water, efflorescence, a mold odor, no sump in a wet area, elevated radon | Waterproofing $3,000–$10,000; radon mitigation $800–$1,800; sump $400–$1,200 |
| Exterior & drainage | Siding and trim; windows and seals; gutters; walkways; how the lot slopes | Rot, fogging (failed window seals), grading that pitches water at the foundation | Windows $400–$1,000 each; regrading/gutters $500–$3,000; siding varies |
| Safety | Smoke and CO alarms; stair rails; deck attachment; garage firewall; handrails | Missing alarms, loose or absent railings, a deck pulling away, no GFCI near water | Alarms $15–$60 each; railings and small fixes $100–$1,000 |
The eight systems every buyer should check before writing an offer.
The five findings that actually kill deals
Everything on the list matters, but a handful of findings do the real damage to a purchase. If you spot these, slow down and price them in, or walk.
- A roof at the end of its life: the single most expensive line item, and insurers now scrutinize it hard.
- Foundation movement: horizontal cracks and bowing walls signal structural cost, not a cosmetic patch.
- A wet basement: water is patient; recurring intrusion means mold, ruined finishes, and repeat repairs.
- An outdated or hazardous electrical panel: certain brands are fire risks and can be hard to insure.
- HVAC past its life: a furnace and A/C replaced together can top $10,000 the year you move in.
What a checklist can’t replace
This list makes you a sharper buyer, but it is not a substitute for a licensed home inspection once you’re under contract, and I’d never let a client skip one, even though I inspect homes myself. The point of walking a house with an inspector’s eye earlier is simpler than that: you stop burning inspection fees on homes that were never going to work, and you write smarter offers on the ones that will.
What a home inspection costs, and why it’s worth it
Once you’re under contract, budget for the formal inspection. Here’s the rough range so there are no surprises.
| Inspection | What it covers | Typical cost |
|---|---|---|
| General home inspection | Whole-house visual: structure, roof, systems, safety | $300–$600 |
| Radon test | A 48-hour measurement of radon gas in the home | $125–$250 |
| Sewer scope | A camera run of the main sewer line for breaks and roots | $150–$300 |
| Specialty | Structural, mold, or well/septic when the general inspection flags it | $300–$1,000+ |
On a house you’re spending hundreds of thousands on, a few hundred dollars to know exactly what you’re buying is the best money you’ll spend.
What to do when the report comes back
An inspection isn’t pass/fail; it’s information, and leverage. Depending on what turns up, you can ask the seller to make repairs, request a closing credit or a price reduction, or walk away if the problems are beyond your budget or appetite. This is exactly why buyers across the Northwest suburbs hire me as their buyer’s agent who’s also a home inspector: the concerns I flag at the first showing become leverage on your price and repairs later.
Ready to start looking? Browse every active listing on my Northwest suburbs home search, then bring me in before you write an offer, and I’ll read the house with you.
This checklist is for the home you are already under contract on. The earlier question, which houses are even worth an offer, I answered separately in a showing-stage walkthrough of what to look for when buying a house.
If the report comes back with something ugly, the next decision is severity, not surprise. I wrote a companion piece on how to triage a red flag before the contingency clock runs out, including the cover-up tells that say a problem was painted over rather than repaired.
Buying a home in the Northwest suburbs?
Get a Realtor who reads the house like an inspector, from the very first showing, at no cost to you, because the seller pays the buyer’s-agent commission.
Work With Vito Book a Free ConsultCost ranges are general Chicago-area estimates for budgeting, not a quote; your actual numbers depend on the specific home.
