Preparing for a home inspection gives sellers a direct advantage over buyers who discover problems first. Sellers who clear system access, correct visible defects, and organize documentation before the visit reduce the finding count in the report and lower the chance an inspection contingency becomes a renegotiation tool. Most buyers order an inspection within 7 to 10 days of an accepted offer; the written home inspection report typically reaches the buyer within 24 hours of the visit.
A standard inspection runs 2 to 4 hours and covers the roof, foundation, electrical panel, plumbing, and HVAC. What do home inspectors look for? The five issues most likely to complicate a closing are foundation cracks, active water damage, roof failure, unsafe electrical, and failing plumbing. Knowing these before your buyer does puts you in control of what gets fixed, disclosed, or priced into the sale.
This guide covers an 8-step home inspection checklist for sellers, what do home inspectors look for in each major system, the five biggest home inspection red flags, what standard inspections exclude, and what to do after the report lands.
Home Inspection
- What Is a Home Inspection?
- How Much Does a Home Inspection Cost in Your State?
- How to Prepare: 8 Steps for Sellers
- What Do Home Inspectors Look For?
- What Are the Biggest Red Flags?
- What Home Inspectors Do Not Check
- Standard vs. Specialty Inspections
- What Happens on Inspection Day
- After the Inspection: Your Next Steps
- Frequently Asked Questions
Worried an Inspector Will Kill Your Sale? Cash buyers skip the contingency that ends financed deals.
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What Is a Home Inspection?
A home inspection is a visual, non-invasive examination of a home’s major systems and structural components, conducted by a licensed professional. The home inspector does not issue a pass or fail grade. Instead, the home inspection report documents condition, deficiencies, and recommended follow-up across each system examined.
Who Performs the Inspection
A licensed home inspector performs the inspection, typically certified by InterNACHI (the International Association of Certified Home Inspectors) or ASHI (the American Society of Home Inspectors). Most states require licensure; requirements vary by state. Buyers hire and pay for the inspection in most transactions. Sellers who order a pre-listing inspection hire the inspector directly and pay before listing.
How Long a Home Inspection Takes
A standard home inspection takes 2 to 4 hours for a typical single-family home, according to InterNACHI standards. Homes over 2,500 square feet or built before 1978 routinely run 4 to 6 hours. Finished basements, detached structures, crawl space access, and older mechanical systems all extend the inspection time.
What the Inspection Report Covers
The home inspection report documents every system examined, noting condition, deficiencies, and recommended action. Inspectors typically deliver the report within 24 hours of the visit. Reports run 30 to 100 pages and include photos for each finding.
How Much Does a Home Inspection Cost in Your State?
Home inspection costs vary by state based on home size, local demand, and inspector credentials. Select your state for a local estimate.
How to Prepare: 8 Steps for Sellers
The home inspection checklist for sellers below covers the eight actions with the greatest impact on your report. Preparing for a home inspection as a seller is most effective when you work through the list in order. Access issues come first: an “not inspected” notation is harder to explain to a buyer than any minor repair.
- Confirm all utilities stay on. Gas, electric, and water must remain active through inspection day. Inspectors cannot test any system on shutoff, and an untestable system gets flagged as “not inspected,” which raises buyer concern.
- Clear access to major systems. Remove obstructions from the electrical panel, HVAC unit, water heater, attic hatch, basement entry, and crawl space entry. Inspectors log “not inspected” for any blocked area, which signals to buyers that something is worth investigating.
- Fix minor visible defects. Replace burned-out bulbs, repair dripping faucets, reinstall missing outlet covers, and tighten loose handrails. Small deficiencies compound into a long report list that can feel more alarming than the individual items warrant.
- Clean and declutter key areas. Clear space under all sinks, around appliances, and near access panels. NFPA 70E requires 18 inches of clear working space in front of the electrical panel; less than that is a noted deficiency.
- Label every circuit in the electrical panel. A printed circuit directory lets the inspector identify systems quickly and prevents “unidentified circuit” notations in the report.
- Test smoke detectors and carbon monoxide detectors. Replace batteries in any unit that fails the test. Replace any smoke detector over 10 years old and any CO detector over 5 to 7 years old.
- Handle the exterior. Trim shrubs back from the foundation and siding, clean gutters, and remove debris from the roof edge, steps, and walkways. Inspectors examine all accessible exterior surfaces.
- Gather documentation before inspection day. Set out appliance manuals, warranties, and receipts for any repairs or system upgrades completed in the past 3 years, per documentation sellers should provide inspectors. Documented maintenance history reduces buyer concern over findings.
Step 1, 3: Access and Safety Fixes
Steps 1 through 3 address the items inspectors flag most often: inaccessible systems and deferred maintenance. Attic access, crawl space entry, and the electrical panel must all be clear and unobstructed, or the inspector will note them as “not inspected.” That notation tells buyers something is worth a closer look. Fixing minor defects matters too, because a long list of small items can feel more alarming than any single deficiency warrants.
Step 4, 6: Clean, Document, Secure
Clearing space under sinks and near access panels takes under an hour. Labeling the electrical panel protects you from vague report notations. Testing the smoke detector and carbon monoxide detector takes minutes but carries code implications in most states, and a failed unit on inspection day is an easy buyer talking point.
Step 7, 8: Exterior and Day-Before Walkthrough
The exterior walk is the inspector’s first read on how well the property has been maintained. Trimmed shrubs, clean gutters, and clear walkways signal consistent upkeep. The documentation set from Step 8 gives the buyer context for past repair work and reduces the perceived severity of findings. A seller who shows receipts for a recently serviced furnace or a replaced water heater removes two common negotiation points before they arise.
What Do Home Inspectors Look For?
What do home inspectors look for first? Systems with the highest repair cost and greatest safety risk come first, per the InterNACHI inspection standards. A standard inspection evaluates seven priority areas, ranked by potential repair cost and safety impact.
Exterior and Structural Systems
- Foundation and structural integrity. Inspectors examine the foundation for cracks, uneven floors, and signs of settling. Horizontal foundation cracks in basement walls signal lateral soil pressure and structural risk. Foundation repairs range from $5,000 to $40,000 depending on severity.
- Grading and drainage. Soil sloping toward the foundation directs water toward the basement or crawl space. Inspectors note slope direction and look for evidence of pooling near the structure.
Roof, Gutters, and Drainage
- Roof condition. Shingle state, flashing around chimneys and vents, gutter attachment, and active attic leaks are all checked. Full roof replacement runs $8,000 to $20,000 or more for a typical home.
- Gutters and downspouts. Disconnected or overflowing gutters direct water toward the foundation. Inspectors note gutter condition and downspout termination points.
Interior: Electrical, Plumbing, HVAC
- Electrical panel and wiring. The panel’s age, brand, breaker condition, grounding, and GFCI presence at wet locations are all assessed. Certain older panel brands and double-tapped breakers are flagged as safety concerns. Panel replacement runs $1,500 to $3,500.
- Plumbing. Visible pipes, water pressure, drain speed, and water heater age are examined. A typical water heater lasts 8 to 12 years. Full repiping costs $5,000 to $15,000. Per ENERGY STAR HVAC maintenance recommendations, annual servicing extends equipment life and reduces the chance of a surprise finding.
- HVAC inspection. Age, filter condition, heat exchanger, and ductwork are all checked. A typical furnace lasts 15 to 20 years. A failing system costs $3,000 to $10,000 to replace.
Safety Items and Code Compliance
Inspectors verify smoke detectors, carbon monoxide detectors, handrail security, GFCI outlets at all wet locations, and other visible code compliance items. These are the items most likely to require remediation before a buyer’s lender approves the loan. Together, the seven categories above cover what do home inspectors look for in a standard residential inspection.
What Are the Biggest Red Flags?
The five biggest home inspection red flags are foundation damage, active water intrusion or mold, roof failure, unsafe electrical systems, and plumbing failures. These categories appear most often in renegotiation requests and are the leading reasons financed buyers exit using an inspection contingency.
Foundation and Structural Red Flags
Foundation damage is the most expensive home inspection red flag. Horizontal cracks in basement walls indicate lateral soil pressure and structural risk. Stair-step cracks in brick or block walls suggest differential settling. Repairs range from $5,000 for minor crack injection to $40,000 or more for full underpinning.
Water Damage and Drainage Problems
Active water intrusion signals a persistent moisture source, not a one-time event. Ceiling and wall stains, musty odors, and visible mold growth indicate the structure has absorbed moisture repeatedly. According to CDC guidance on household mold and health risks, mold exposure carries respiratory health risks; remediation costs $1,500 to $9,000 on average. Unresolved water damage can escalate to structural rot if the moisture source is not addressed.
Electrical and Roof Red Flags
Unsafe electrical systems include knob-and-tube wiring, aluminum branch-circuit wiring, Federal Pacific or Zinsco panels, and double-tapped breakers. Lenders often require corrections before approving a loan. Panel replacement runs $1,500 to $3,500.
Roof failure appears as missing or curling shingles, compromised flashing, and active leaks visible from the attic. A full replacement runs $8,000 to $20,000 or more.
Plumbing failures include galvanized pipe corrosion, sewer line backups, and an aging water heater. Full repiping costs $5,000 to $15,000.
Home inspection red flags in these five categories are the items buyers most often cite when requesting price reductions or repair credits after the report is delivered.
What Home Inspectors Do Not Check
Standard home inspectors do not test for radon, asbestos, lead paint, mold, or pest infestations. These five categories require separate licensed specialists and add-on fees. Knowing what inspectors exclude tells you which specialty tests to order before you list.
Environmental Hazards Require Separate Tests
- Environmental hazards. Radon testing, asbestos sampling, lead paint analysis, and toxic mold testing all require licensed specialists. Per EPA radon testing guidance for homeowners, radon testing adds approximately $100 to $150 as an inspection add-on. The EPA recommends mitigation when radon levels exceed 4 pCi/L.
- Pest and wood-destroying organisms. Termites and other wood-destroying organisms require a separate WDO inspection (sometimes called a termite inspection), typically $75 to $150.
Systems Outside the Inspection Scope
- Swimming pools and hot tubs. A separate pool inspection runs $100 to $200 and is not part of a standard home inspection.
- Well and septic systems. Well water testing and septic inspection typically cost $250 to $500 combined.
- Concealed defects. Inspectors cannot open walls, lift flooring, or probe behind insulation. The inspection is visual only; anything hidden from sight is outside its scope.
Because standard inspections exclude these systems, the table below shows exactly which tests are included by default and which require a separate order.
Standard vs. Specialty Inspections
| Included in Standard Inspection | Requires Separate Inspection |
|---|---|
| Roof, gutters, and flashing | Radon testing ($100 to $150 add-on) |
| Foundation and structural framing | Mold and air quality testing |
| Electrical panel and visible wiring | Asbestos and lead paint testing |
| Plumbing and water heater | Termite and WDO inspection ($75 to $150) |
| HVAC system and ductwork | Pool and spa inspection ($100 to $200) |
| Attic access and crawl space (if accessible) | Well water and septic testing ($250 to $500) |
| Smoke and carbon monoxide detectors | Sewer scope inspection ($100 to $300) |
Based on InterNACHI scope-of-practice standards and aggregated industry cost data, 2026. Verify current specialty inspection rates before ordering.
For a full breakdown of well inspection costs and what they cover, including regional price ranges, see the dedicated guide.
What Happens on Inspection Day
Preparing for a home inspection also means knowing what to do on the day itself. Your job as a seller is to leave the property, set out the right documents, and stay reachable by phone. Inspectors and buyers communicate more candidly without the seller in the room.
Should You Be Home During Inspection?
Sellers should leave the property during the inspection. The buyer and inspector need to discuss findings candidly, and a seller who overhears those conversations can create awkward disclosure obligations. Plan to be gone for at least 4 hours.
How Long Will the Inspector Be There?
Expect 2 to 4 hours for a home under 2,000 square feet and 3 to 5 hours for larger homes. Limited attic access, a finished crawl space, or aging mechanical systems can add time to either estimate.
What to Have Ready When They Arrive
Leave out appliance manuals, recent repair receipts, utility bills for the past 12 months, and any permits pulled in the last 5 years. Per ASHI certified inspector standards of practice, inspectors are not required to operate systems with limited or restricted access, so having documentation available can prevent “not inspected” notations on systems you know are functional.
After the Inspection: Your Next Steps
The buyer receives the home inspection report within 24 hours of the inspection. From there, the transaction enters its most negotiable phase.
How to Read the Inspection Report
The home inspection report is not a verdict. Every home produces findings. A long report does not indicate a bad home; it reflects a thorough inspection. Focus on the items the buyer flags for negotiation, not the full findings list.
Repair Requests vs. Price Credits
Buyers typically have 3 to 10 days after receiving the report to submit repair requests, depending on the purchase agreement. Per the CFPB guide to home inspection contingencies, buyers can request specific repairs, a price reduction, closing cost credits, or exit the contract entirely based on findings. Contract timelines and buyer rights vary by state and by individual purchase agreement; consult your agent or a real estate attorney for the rules in your jurisdiction.
Sellers deciding between repair and credit options sometimes weigh whether offering a home warranty is more cost-effective than specific mechanical replacements before closing. A home warranty covers future system failures and gives buyers reassurance without requiring a full pre-closing replacement.
When Selling As-Is Makes More Sense
If the inspection reveals foundation damage, water intrusion, or electrical problems that would cost more than $10,000 to remediate, selling to a cash buyer rather than listing on the MLS is worth comparing. A financed buyer with an inspection contingency can exit the deal based on findings a cash buyer would simply price into their offer. The repair negotiation cycle adds 2 to 4 weeks to the timeline and does not guarantee the deal closes.
Should You Get a Pre-Listing Inspection?
A pre-listing inspection lets you find defects before buyers do, giving you time to repair or adjust your price before the first offer arrives. The cost is $300 to $500 for most single-family homes, the same as a buyer’s inspection. A pre-listing inspection is most valuable for sellers in slower markets, owners of older homes, and anyone who has deferred routine maintenance. Note that findings from a pre-listing inspection typically must be disclosed to buyers even if you choose not to make repairs.
If the inspection uncovers foundation work, water damage, or electrical problems, you face a straightforward decision: repair, reduce the price, or sell as-is. A cash buyer through iBuyer.com won’t back out over disclosed conditions the way a financed buyer with an inspection contingency can. You receive competing offers from vetted cash buyers, choose your close date, and skip the repair cycle entirely. To see what your home would net from multiple cash offers, enter your address and get a no-obligation comparison.
Worried an Inspector Will Kill Your Sale? Cash buyers skip the contingency that ends financed deals.
No repairs required, no inspection contingency, no surprises at closing.
Frequently Asked Questions
A home inspection is a visual, non-invasive examination of a home’s major systems conducted by a licensed professional, lasting 2 to 4 hours. The inspector delivers a written home inspection report within 24 hours documenting conditions across the roof, foundation, electrical, plumbing, and HVAC. A home inspection is not an appraisal; it evaluates condition, not market value.
Clear system access, fix minor visible defects, and leave the property so the buyer and inspector can speak freely. Blocked access results in “not inspected” notations that raise buyer concern. The 8-step home inspection checklist for sellers in this guide covers utilities, access, minor repairs, cleaning, panel labeling, safety devices, exterior prep, and documentation.
The five biggest home inspection red flags are foundation cracks, active water intrusion or mold, roof failure, unsafe electrical wiring, and aging or failed plumbing. Foundation repairs range from $5,000 to $40,000; roof replacement runs $8,000 to $20,000 or more.
Most inspectors begin with the exterior, checking grading, drainage, foundation visibility, and roof condition before entering the home. Clear walkways, trimmed shrubs, and clean gutters allow a faster, more complete exterior pass.
Standard home inspectors do not test for radon, asbestos, lead paint, mold, or pest infestations; those require separate licensed specialists and add-on fees. Well and septic systems, swimming pools, and concealed defects behind walls or under floors are also outside standard inspection scope.
Inspectors prioritize the roof, foundation, electrical panel, plumbing, and HVAC because defects in those systems carry the highest repair costs. Safety items including smoke detectors, carbon monoxide detectors, and GFCI outlets at wet locations are checked in every standard inspection.
A standard home inspection takes 2 to 4 hours for a typical single-family home. Homes over 2,500 square feet or built before 1978 routinely run 4 to 6 hours, and a finished basement, crawl space access, or older systems can extend that further.
Sellers should leave the property during the inspection so the buyer and inspector can discuss findings without the seller present. Leave out appliance manuals, repair receipts, utility bills, and permits from the past 5 years; buyers are encouraged to attend.
Fix minor, visible defects such as burned-out bulbs, dripping faucets, and missing outlet covers, but avoid major hidden repairs without documented receipts. Undocumented major repairs can raise more buyer concern than the original defect would have.
A standard home inspection costs $300 to $500 for most single-family homes. Add-ons such as radon testing ($100 to $150) or a WDO inspection ($75 to $150) increase the total; costs vary by home size, age, and region.
Homes do not receive a pass or fail grade; inspectors produce a condition report documenting findings. The buyer then decides whether to proceed, renegotiate, or exit using an inspection contingency; all homes have findings, and a long report does not mean the home is unsellable.
The buyer receives the home inspection report within 24 hours and can request repairs, a price reduction, or closing cost credits. Contract terms determine how long the buyer has to respond, typically 3 to 10 days depending on the purchase agreement.
A pre-listing inspection lets you find and fix problems before buyers do, reducing the chance of renegotiation after the buyer’s inspection. The cost is $300 to $500; sellers in slower markets or with older homes benefit most.
Standard home inspectors do not test for radon or mold; both require separate testing by a licensed specialist. Radon testing adds approximately $100 to $150 as an inspection add-on, and the EPA recommends mitigation when levels exceed 4 pCi/L.
Reilly Dzurick is a licensed real estate agent with over six years of experience and a member of the iBuyer.com Market Insights Team, covering national trends in home selling and the evolving iBuyer landscape. Her firsthand experience working with buyers and sellers gives her a practical perspective on how these platforms impact real homeowners. She holds a degree in Public Relations, Advertising, and Applied Communication.
