What Home Inspectors Legally Can't Tell You
A home inspection is a visual snapshot with legally defined edges, and the most expensive problems in a house often live just outside them. Knowing where the edges are tells you which specialists are worth hiring before your contingency expires.
Updated 2026-08-10 · Home Inspection Decoded
Buyers tend to imagine a home inspection as a comprehensive audit that certifies the house sound. It isn't, and the gap between that expectation and reality is where post-closing surprises come from. The exclusions are written into inspection contracts and standards of practice, and in many states into law. They exist for defensible reasons — an inspector gets a few hours, no permission to open walls, and a fee in the hundreds of dollars — but the consequence lands on you: several of the most expensive failure points in a house sit formally outside the inspection's scope.
Three constraints define the whole exercise
Visual only. If it can't be seen from a safe, accessible position, it isn't inspected. That covers the inside of walls, the pipes under a slab, chimney flue interiors, and the heat exchanger inside a furnace. An inspector can note evidence (a stain, a smell, a soft spot) but cannot see the wiring junction behind the drywall.
Non-invasive. Inspectors don't move furniture, lift carpet, dismantle equipment, or drill holes. If the seller's boxes block the attic hatch, the attic goes uninspected, and the report will say so in one easily missed line. Access notes deserve more attention than they get; the boilerplate guide covers spotting the ones that matter.
A snapshot. The report describes conditions at the time of inspection. The furnace that ran fine on inspection day carries no warranty about next month, which is why reports lean so hard on age and service-life language.
The exclusions, and who actually covers each one
Costs vary by region, so treat these as rough figures.
| Not covered by a standard inspection | Who covers it | Typical cost |
|---|---|---|
| Sewer lateral (underground drain to street) | Sewer scope (camera) | $150 – $400 |
| Chimney flue interior | Level 2 chimney inspection | $150 – $500 |
| Termites / wood-destroying organisms | Licensed WDO/pest inspector | $75 – $250 (often required by lender anyway) |
| Mold (identification/testing) | Mold assessor, air/surface sampling | $250 – $700 |
| Radon | Radon test (48-hr monitor) | $100 – $250 |
| Asbestos / lead confirmation | Accredited lab testing | $200 – $800 |
| Septic system function | Septic inspection with tank opening | $300 – $900 |
| Well water quality/flow | Well and water testing | $250 – $700 |
| Pool/spa equipment | Pool inspector | $150 – $400 |
| HVAC internals (heat exchanger, refrigerant, ducts) | HVAC technician evaluation | $100 – $300 |
| Structural adequacy (opinion, not observation) | Structural engineer | $400 – $800 |
Nobody needs all of these; match the add-ons to the house. A 1960s home with mature trees makes the sewer scope near-mandatory. A rural property makes well and septic testing non-negotiable. On many houses, $400–$800 of well-chosen add-ons covers every exclusion that plausibly applies.
What inspectors are barred from saying
Beyond what they can't see, there's what inspectors can't say; license terms and liability draw this line.
Code compliance. Inspectors are not code officials. Older homes are generally "grandfathered," legally fine under the code of their era, so calling out every mismatch with current code would mislead. Instead you get careful phrasing like "modern safety standards call for tempered glass at this location." That's a real safety gap described without asserting a violation.
Whether the house is worth the price. Value is the appraiser's lane. An inspector who says "great house!" is being friendly, not rendering a professional finding.
Engineering conclusions. A generalist can report a bowed wall and measure the crack. Declaring the cause and prescribing the fix belongs to a licensed engineer, which is why serious structural findings end in "recommend evaluation by a structural engineer." When that referral is attached to a specific defect, take it seriously; the worst versions overlap with the findings that genuinely justify slowing a deal down.
Predictions and warranties. Ask how long the roof will last and you get a range and a disclaimer. The contract you signed almost certainly caps the inspector's liability, commonly at the inspection fee itself. Read that clause once.
Cosmetics. Paint, scuffs, worn flooring, dated fixtures. Explicitly out of scope everywhere, so their absence from the report means nothing.
How a clean report and a $14,000 bill coexist
Picture a buyer closing on a 1965 ranch after a genuinely thorough inspection: 52 findings, nothing alarming, every accessible system documented. Four months later, sewage backs up into the tub. The sewer lateral, clay pipe invaded by roots decades ago, needs replacement at $14,000. Was the inspection wrong? No: the lateral is underground, explicitly excluded, and the report said so. A $250 sewer scope during the contingency window would have found it, and the buyer could have negotiated or walked. The exclusions section is a to-do list; this buyer didn't read it as one.
Using the scope limits
- Treat exclusions and access notes as action items. Every "not inspected" line raises a question: does this gap matter for this house? Blocked attic under an old roof, yes. Winterized sprinkler system, probably not.
- Buy the add-ons the house's age and features call for before the contingency expires. After closing, every discovery is fully yours.
- Translate the careful language. "Modern safety standards suggest" and "unable to determine" are an inspector saying something real within legal limits.
- Don't blame the snapshot for the future. Age-based findings like "nearing end of service life" are the report's budgeting guidance.
Judging which exclusions on your report deserve real specialist money is what the report decoder is built for: it reads the scope notes alongside the findings and flags the gaps worth covering for a house like yours. For everything the report does cover, start with the complete guide to reading your inspection report.