I almost bought a money pit. The house looked great. Fresh paint, updated kitchen, nice curb appeal. Then the inspector crawled under the house and found a cracked foundation beam and evidence of termite damage that would cost $22,000 to fix. The seller knew about it. The listing photos had been carefully angled to hide the exterior cracks. Without that inspection, I would've signed the paperwork, celebrated with takeout, and then discovered I needed a structural engineer before I could safely sleep there. That was the day I stopped treating home inspections as a formality and started treating them as the most valuable few hundred dollars in the entire home buying process.
TL;DR: A home inspection costs $300 to $600 and takes two to four hours. It can save you from buying a house with hidden structural, electrical, plumbing, or roof problems. Buyers who use inspection findings negotiate an average of $14,000 off the purchase price. This checklist covers every system and structure your inspector should evaluate, plus the red flags that should make you walk away.
Why You Should Never Skip the Home Inspection
During the pandemic buying frenzy, waiving inspections became common. Buyers were so desperate to win bidding wars that they agreed to buy homes sight-unseen, no contingencies. Some of those buyers are now dealing with six-figure repair bills.
The numbers tell a clear story: 86% of home inspections uncover issues that need attention. The most common problems found are roof issues (19.7% of inspections), electrical problems (18.7%), and window defects (18.4%). Even new construction isn't immune. About 65% of new-build inspections reveal issues found during the building process.
A standard inspection costs roughly $300 to $600 depending on the home's size and location. Compare that to the average negotiation savings of $14,000 that buyers secure using inspection findings. It's the best return on investment you'll find in the entire transaction.
Your inspection report also serves as a maintenance roadmap after you buy. It tells you which systems are aging and when you'll need to budget for replacements. Think of it as the user manual that homes never come with.
What a Home Inspector Actually Evaluates
A professional home inspection is a visual, non-invasive review of the home's structure and major systems. Here's what gets checked, organized by area, and what you should pay attention to during the walkthrough.
Roof and Exterior
The roof is the most common area for inspection findings. Roughly 70% of inspections flag roof-related issues according to industry data. Your inspector should evaluate the roof covering material and estimated remaining life, flashing around chimneys, vents, and skylights, gutters and downspouts for proper drainage, fascia and soffit for rot or damage, and evidence of leaks or water staining in the attic below.
A roof replacement runs $5,868 to $13,216 depending on size and materials. If the inspector says your roof has less than five years of life left, factor that cost into your negotiation.
The exterior check also covers siding condition (cracks, warping, rot), foundation visibility from outside (cracks, settling, water staining), grading and drainage (water should flow away from the house, not toward it), decks, porches, and railings for structural soundness, and any evidence of wood-destroying insects like termites or carpenter ants.
Foundation and Basement
Foundation problems are the red flags that scare buyers the most, and for good reason. Minor settling cracks are normal in most homes. But horizontal cracks, bowing walls, or significant water intrusion can signal structural failure.
Your inspector will check for visible cracks in foundation walls (vertical hairline cracks are usually cosmetic; horizontal or stair-step cracks are concerning), evidence of water intrusion, including staining, efflorescence (white mineral deposits), and dampness, sump pump operation if present, and structural support beams and posts.
I've seen buyers walk away from deals over basement moisture problems, and in most cases that was the right call. Water issues rarely fix themselves and often get worse.
Plumbing
The plumbing check covers water pressure and flow at multiple fixtures, drain speed and signs of blockages, water heater age, condition, and proper installation, visible pipes for material type and condition (galvanized steel pipes in older homes may be corroded and need replacement), and signs of leaks under sinks, around toilets, and near appliances.
Ask your inspector about the pipe material. Older homes may have galvanized steel, cast iron, or even lead pipes that need upgrading. This isn't always a deal-breaker, but it's a significant future expense to factor in.
Electrical
Electrical issues rank as the second most common finding at 18.7% of inspections. Your inspector tests outlets for proper grounding and polarity, evaluates the electrical panel for capacity, condition, and any known safety hazards, checks for visible wiring issues, and verifies that GFCI outlets are installed in wet areas (kitchens, bathrooms, garages, exteriors).
Outdated electrical panels (particularly certain brands known for safety issues) or insufficient amperage for modern usage can cost $1,500 to $4,000 to upgrade. Faulty wiring can prevent insurance coverage, so this area deserves serious attention.
HVAC (Heating, Ventilation, Air Conditioning)
Your inspector runs the heating and cooling systems to verify they operate correctly. Key checkpoints include the age and condition of the furnace and air conditioner (most systems last 15 to 20 years), ductwork condition and connections, thermostat operation, air filter condition, and carbon monoxide detector presence.
An HVAC replacement costs $5,000 to $12,000. If the system is nearing end of life, negotiate accordingly.
Windows and Insulation
Window defects appear in 18.4% of inspections. Old, single-pane, or poorly sealed windows can account for up to 30% of a home's heating and cooling energy loss. Your inspector checks seal integrity (foggy double-pane windows mean failed seals), frame condition for rot or deterioration, smooth operation (they should open, close, and lock properly), and insulation levels in the attic, walls, and crawl spaces.
Interior
Inside, the inspection covers walls, ceilings, and floors for cracks, stains, or uneven surfaces, doors and windows for proper operation, stairways and railings for safety, and signs of water damage, mold, or pest activity.
Water stains on ceilings are always worth investigating further. They could indicate an active roof leak, a plumbing issue, or a past problem that's been resolved. Only further investigation tells you which.
What Inspections Don't Cover
Standard inspections have limits. They're visual and non-invasive, which means inspectors can't see inside walls, under flooring, or behind drywall. Common exclusions include mold testing (usually available as an add-on), radon testing (add-on), asbestos assessment (add-on, especially relevant for pre-1980 homes), sewer line camera inspection (add-on), pest and termite inspection (often separate), pool and spa systems, and underground storage tanks.
For homes built before 1980, I'd strongly recommend adding radon and asbestos testing. For any home, a sewer line camera inspection ($100 to $300) can prevent nasty surprises. A collapsed or root-invaded sewer line costs $3,000 to $25,000 to replace.
How to Use Your Inspection Report
Your inspection report becomes a negotiation tool. Here's how to approach it.
Separate structural and safety issues from cosmetic ones. Chipped paint and scratched floors aren't negotiation points. Roof damage, foundation cracks, electrical hazards, and plumbing failures are.
Get repair estimates. For any significant issue, get a quote from a licensed contractor. Real numbers carry more weight than vague concerns in a negotiation.
Ask for repairs, credits, or a price reduction. You can ask the seller to fix issues before closing, provide a credit at closing so you handle repairs yourself, or reduce the purchase price to account for needed work. Credits or price reductions give you more control over the quality of repairs.
Know when to walk away. If the inspection reveals major structural problems, extensive water damage, or environmental hazards (like significant mold or asbestos), and the seller won't negotiate, walking away is often the right move. Your inspection contingency protects your right to do this.
FHA and VA Loan Inspection Requirements
If you're buying with an FHA or VA loan, be aware that appraisers for these programs flag specific safety and condition issues that must be resolved before the loan closes.
FHA appraisers commonly flag peeling or chipping paint (lead paint concern in pre-1978 homes), missing handrails at stairs, damaged or missing gutters, roof with less than two years remaining life, exposed electrical wiring, tripping hazards, and water heater that isn't properly strapped in earthquake zones.
VA appraisals similarly require the home to be "safe, sound, and sanitary." The standards are strict enough that some sellers prefer not to accept FHA or VA offers.
If you're financing with one of these programs, our First-Time Home Buyer Guide covers how to navigate these requirements smoothly.
Finding the Right Inspector
Not all inspectors are created equal. Look for certification from ASHI (American Society of Home Inspectors) or InterNACHI (International Association of Certified Home Inspectors). Ask for a sample report before hiring. A good report includes high-resolution photos, clear explanations of issues, and context about severity and estimated repair costs.
Your real estate agent likely has recommendations, but don't feel obligated to use their suggestion. An independent inspector who works for you, not for the deal, is worth finding.
Show up for the inspection. Walk through with the inspector. Ask questions. See the issues firsthand. A written report captures the facts, but being there gives you context about severity and priority that paper can't convey. Most inspections take two to four hours.
If you're buying investment property, the inspection is even more critical. Our Real Estate Investment for Beginners guide explains how unexpected repairs destroy rental returns and how to protect yourself.
10 Key Facts
- 86% of home inspections uncover issues requiring attention according to industry analysis data.
- The most common inspection findings are roof issues (19.7%), electrical problems (18.7%), and window defects (18.4%).
- Buyers negotiate an average of $14,000 off the sale price using inspection findings.
- A standard home inspection costs $300 to $600 depending on home size and location.
- Roof replacement costs range from $5,868 to $13,216 based on size and materials per Redfin data.
- About 65% of new construction inspections reveal issues during the building process.
- Old or poorly sealed windows can account for up to 30% of a home's heating and cooling energy loss.
- A sewer line camera inspection costs $100 to $300 and can prevent $3,000 to $25,000 in surprise repairs.
- HVAC system replacement typically costs $5,000 to $12,000.
- Inspections take two to four hours with reports delivered within 48 hours.
FAQ
How much does a home inspection cost? The average cost is about $343 nationally, with a typical range of $296 to $424 according to 2025 Angi data. Larger homes, older homes, and additional testing (radon, mold, sewer camera) can push the total to $600 or more. The buyer pays for the inspection in the vast majority of transactions.
Can I do my own home inspection instead of hiring a professional? You can walk through a home and check for obvious issues, but a certified inspector catches things most people miss. They have specialized tools for testing electrical systems, detecting moisture behind walls, and evaluating structural components. Given that the cost is a few hundred dollars on a purchase worth hundreds of thousands, professional inspection is well worth it.
What happens if the inspection finds major problems? You have several options if you have an inspection contingency in your purchase agreement. You can request the seller make repairs, ask for a credit at closing, negotiate a lower purchase price, or walk away from the deal entirely. Your real estate agent can guide you on which approach works best given the issue and your market conditions.
Should I get a home inspection on new construction? Yes. About 65% of new construction inspections uncover issues. Building codes set minimum standards, not perfection. Inspectors commonly find incomplete installations, code violations, drainage problems, and cosmetic defects that the builder should address before you close.
What are the biggest red flags in a home inspection? Foundation structural damage (horizontal cracks, bowing walls), active water intrusion, electrical hazards (outdated panels, improper wiring), significant roof damage, and evidence of mold or pest infestation. Any of these can cost thousands to tens of thousands to remediate and may affect your ability to get insurance.
Can a seller refuse to make repairs after an inspection? Yes. Sellers are not legally required to make repairs based on a buyer's inspection. But the inspection gives you leverage to negotiate. If the seller refuses all requests on significant issues, you can walk away under your inspection contingency. In practice, most sellers will negotiate on legitimate safety and structural concerns to keep the deal together.