What Fails a Home Inspection? Top Issues Inspectors Find (2026)
Published 2026-06-17 · Updated 2026-07-08
There is no pass or fail slip at the end of an inspection, just a report describing what the inspector saw and how bad it is. A handful of findings show up again and again as the reason a buyer walks or demands a real concession: cracked foundations, worn-out roofs, dangerous panels, water where it should not be, and sewer lines on their way out.
Why the foundation gets flagged hardest
Nothing else on the list carries the same weight. A wall that has shifted, stair-step cracks running through masonry, or water finding its way in through the slab all point to a drainage or structural problem underneath the house, and fixing that runs $5,000 to $30,000 depending on how far it has gone. It is not just the repair bill either. An unresolved foundation issue makes a home harder to insure and, later, harder to sell, which is why it sits at the top of nearly every inspector's list of concerns.
Other findings that frequently derail or affect deals
- Foundation problems. Horizontal cracks, significant settling, active water intrusion, and stair-step masonry cracks all require professional structural assessment and can be expensive to remediate.
- Roof at end of life or actively leaking. Inspectors examine shingles, flashings, and attic space for evidence of moisture. A roof flagged as needing replacement within 1 to 3 years is consistently one of the most negotiated findings.
- Electrical panel defects. Federal Pacific Electric Stab-Lok and Zinsco panels are documented fire hazards and will be flagged without exception. Double-tapped breakers, ungrounded wiring, and improper circuits are also serious findings. Panel replacement runs $1,500 to $4,000.
- Active water intrusion. Ongoing moisture in basements, crawlspaces, or attics points to drainage, grading, or waterproofing problems. Fixes range from straightforward (gutter cleaning and regrading at $500) to expensive (full basement waterproofing at $5,000 to $15,000).
- HVAC system failure or at end of life. A furnace with a cracked heat exchanger (a carbon monoxide risk) or an AC unit that fails to run can mean $3,000 to $12,000 in replacement costs.
- Sewer line damage. Root intrusion, pipe collapse, or offset joints 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 fix |
| 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. Both materials are often stable in place but become health hazards when disturbed during renovation. Testing is a separate specialty service. Your general inspector will flag the possibility based on the home's age and visible materials; the actual testing requires a certified specialist.
What inspectors typically do not flag as failures
Cosmetic items, scuffed paint, dated fixtures, worn carpet, and minor drywall dings, are noted but treated as buyer-responsibility items. Inspectors assess safety and structural integrity, not aesthetics. Items outside the standard scope, underground oil tanks, soil contamination, chimney liner condition, are noted as requiring specialist evaluation, not assessed directly.
How to use inspection findings in negotiations
Focus on safety hazards, structural issues, and items with significant repair costs. Sending the seller a long list of cosmetic complaints alongside a foundation crack irritates sellers and dilutes the negotiation on items that actually matter. A focused repair request, covering high-cost safety and structural findings while accepting responsibility for cosmetic and minor maintenance items, tends to produce better results than a comprehensive list of everything the inspector noted.
Quick answers
What single item comes up most in inspection reports?
Roof wear and poor grading around the foundation are the two most commonly cited items nationwide. Neither sounds dramatic, but both show up far more often than buyers expect.
Will the seller actually fix what the inspector found?
Often, yes. That is the most common outcome after a significant finding: the buyer submits a repair request, the seller fixes it or offers a credit, and the sale moves forward. Get documentation and consider a re-inspection on anything structural.
Should I ask the seller to fix every single item on the report?
No. A report on an older home can run 50 pages. Stick to safety hazards, structural problems, and anything with a real repair cost attached. A short, focused list gets better results than a page-by-page demand.
Things to know
A cracked foundation, a dying roof, a dangerous panel, water intrusion, or a failing sewer line are the five findings most likely to change the outcome of a sale. Everything else is usually noise you can live with or fix later. A licensed inspector gives you the paperwork to negotiate from strength, or the reason to walk with only the inspection fee gone.
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