What the SOP Includes & Excludes
~11 min read · State what a general home inspection covers — and the long list it explicitly does not.
The Standards of Practice define the home inspection as a visual, non-invasive survey of readily accessible systems — and define it just as firmly by what it is NOT: not a code inspection, not an appraisal, not a warranty, not exhaustive. Knowing both lists is 12% of the exam.
What the inspection is
Per the major SOPs (ASHI/InterNACHI pattern): a visual examination of readily accessible, visually observable, installed systems and components — structure, exterior, roofing, plumbing, electrical, HVAC, interior, insulation/ventilation, fireplaces — performed using normal operating controls, reporting systems that are significantly deficient, unsafe, or near end of life. 'Readily accessible' means no dismantling beyond covers intended for removal (panel dead-fronts), no moving stored goods/furniture, no dangerous access.
- Visual, non-invasive, readily accessible
- Normal operating controls only
- Report deficiencies, safety issues, end-of-life
The exclusion list
Standard exclusions (unless separately contracted): code compliance, appraisal/value, cosmetic conditions, concealed conditions and latent defects, environmental testing (radon, mold, asbestos, lead — referral services), pools/spas/wells/septic (ancillary), low-voltage/security/irrigation systems, detached structures beyond agreed scope, determining insurability, life-expectancy warranties, and predicting future performance. The inspection is a sample in time — 'the systems as they presented on this date' — not a guarantee.
- No code, no value, no concealed, no environmental testing
- Ancillary systems by separate agreement
- Snapshot in time, never a warranty
Why the boundary matters
The SOP is the inspector's shield and the client's honest map: it sets the duty a court measures against, prices the service (an exhaustive invasive survey would cost thousands and take days), and frames the report language ('within the scope of a visual inspection…'). Exceeding scope casually — operating shutoffs, dismantling equipment, walking a fragile roof — creates liability both by damage and by implying a duty the SOP disclaims.
Worked example
A buyer post-closing complains: 'You missed the mold inside the wall, never told me the deck violates code, and the furnace died in month two after you called it functional.' Map each complaint against the SOP.
In-wall mold: a concealed condition — outside the visual scope by definition; the defense is the report's limitation language plus any moisture findings that were visible (if the inspector reported the leaky gutter above that wall, diligence is demonstrated). The deck 'code violation': home inspections are not code inspections — the question is whether the deck's observable CONDITIONS (ledger, guards, fasteners) were reported; a safe-conditioned deck that fails a code technicality is not a missed finding. The furnace: reported functional at inspection with age noted — the SOP disclaims prediction and warranty; a month-two failure of an aging component is exactly why the report carried the age/budget note. Each answer traces to scope language the client agreed to — which is why the pre-inspection agreement exists.
Common exam pitfalls
Quietly exceeding scope to be helpful.
Dismantling, invasive probing, and specialist testing create duty and damage — do ancillary work only under explicit agreement.
Letting clients believe it's a warranty.
Snapshot-in-time framing, in the agreement and the report — future performance is expressly outside the promise.
Reporting code verdicts.
Conditions and safety implications are the currency — code citations claim a role the SOP disclaims.
Visual, accessible, normal controls, today — and never code, value, concealed, or forever.
Recap
- Visual, non-invasive, readily accessible systems
- Normal operating controls; no dismantling beyond covers
- Report deficiencies, hazards, end-of-life
- Excluded: code, value, concealed, environmental, ancillary
- Snapshot in time — no warranty, no prediction
- Scope language shields inspector and informs client
Prove it: 10 questions on this topic
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