What Fails a Home Inspection? Top Issues Inspectors Find
Does a home inspection have a pass or fail?
Home inspections do not technically have a pass or fail grade. An inspector's job is to describe the condition of each system and component, note deficiencies, and recommend further evaluation or repair where appropriate. However, some findings are severe enough that buyers walk away or demand significant seller concessions. Use our home inspection cost calculator to budget for your inspection and any specialty tests that may follow.
Understanding what inspectors most commonly flag helps you know what to watch for when reviewing your report.
Major issues that frequently derail or affect deals
- Foundation problems. Horizontal cracks in basement walls, significant settling, water intrusion through the foundation floor, and stair-step cracks in masonry are all serious findings. Foundation repairs can cost $5,000 to $30,000 or more depending on severity.
- Roof at end of life or actively leaking. Inspectors examine shingles, flashings, and attic space for evidence of leaks. A roof needing replacement soon is often flagged as a major item requiring negotiation.
- Electrical panel defects. Federal Pacific Electric (FPE) Stab-Lok panels and Zinsco panels are known fire hazards. Double-tapped breakers and ungrounded wiring are also common serious findings. Panel replacement runs $1,500 to $4,000.
- Active water intrusion. Signs of ongoing moisture in basements, crawlspaces, or attics suggest drainage, grading, or waterproofing problems. These can range from minor (gutter cleaning) to major (full basement waterproofing at $5,000 to $15,000).
- HVAC system failure or at end of life. A furnace with a cracked heat exchanger, or an AC unit that will not run, can mean $3,000 to $12,000 in replacement costs.
- Sewer line damage. Root intrusion, pipe collapse, or offset joints are found via sewer scope. Full sewer line replacement can cost $8,000 to $20,000.
Common items inspectors note but buyers often overlook
| Finding | Approximate repair cost | Severity |
|---|---|---|
| Older water heater (10 or more years) | $800 to $1,500 | Moderate, plan for replacement |
| Missing GFCI outlets in wet areas | $150 to $400 | Safety hazard, relatively inexpensive |
| Improper bathroom venting | $200 to $600 | Moisture risk over time |
| Attic insulation below current standards | $1,000 to $3,000 | Energy efficiency concern |
| Deck structural issues | $500 to $5,000 | Safety hazard if severe |
| Grading slopes toward foundation | $300 to $2,000 | Water intrusion risk |
What inspectors look for in older homes
Homes built before 1978 may have lead paint in window sills, door frames, and trim. Homes built before 1980 may contain asbestos in insulation, floor tiles, or pipe wrap. These materials are not always hazardous in place, but disturbing them during renovation can create serious health risks. Testing for these substances is a separate specialty service that your general inspector may recommend.
What inspectors typically do not flag as failures
Cosmetic issues like scuffed paint, dated fixtures, worn carpet, and minor drywall dings are noted but generally treated as buyer-responsibility items. Inspectors assess safety and structural integrity, not aesthetics. Similarly, items outside a home inspector's scope (like underground oil tanks, soil contamination, or chimney liner condition) are noted as requiring specialist evaluation rather than assessed directly.
Frequently asked questions
What is the most common thing that fails a home inspection? Roof deficiencies and improper grading or drainage issues around the foundation are among the most frequently noted findings across all inspection reports.
Can a seller fix inspection issues before closing? Yes, and this is the most common outcome. The buyer submits a repair request, the seller agrees to fix certain items or offer a credit, and the transaction proceeds. Always get evidence that repairs were completed properly, ideally a re-inspection.
Should I ask for everything on the inspection report to be fixed? No. Focus repair requests on safety hazards, structural issues, and items that represent significant cost. Asking for a long list of minor cosmetic items can irritate sellers and stall negotiations over low-stakes issues.
Bottom line
Foundation problems, roof failure, hazardous electrical systems, active water intrusion, and sewer line damage are the findings most likely to affect a deal. A thorough inspection from a licensed home inspector gives you the information you need to negotiate or walk away with confidence. Use our home inspection cost calculator to estimate the inspection cost, and budget for specialty tests if your inspector flags any high-risk areas.
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