Home Inspection Report Explained

A home inspection report usually runs 40–100 pages and groups findings by system: roof, exterior, structure, electrical, plumbing, HVAC, interior, insulation. Most reports use a three-tier severity scheme — safety/major/minor, or red/yellow/green, or critical/maintenance/cosmetic. The reader's job is to triage findings into three buckets: deal-breakers (walk away or large concessions), negotiation items (credits or fixes at closing), and fix-later items (your renovation roadmap). Inspectors consistently miss two things: sewer line condition (add a separate sewer scope) and structural specifics (request a structural engineer consult for any flagged foundation issue). The report becomes useful when its findings get sequenced into a plan with costs and priorities. Without that step, it's a 60-page PDF that turns into wallpaper.

Anatomy of an inspection report

A standard residential inspection report follows the Standards of Practice published by ASHI (American Society of Home Inspectors) or InterNACHI. Both produce similar document structures: a summary section at the front with the high-priority findings, followed by detailed sections per building system. Each finding typically includes a photo, a location reference, a severity tag, a description of what was observed, and a recommendation (repair, replace, monitor, evaluate further by a specialist).

Read the summary first, then the sections in this order: structure and foundation, roof, electrical, plumbing, HVAC, exterior, interior. The first three are the load-bearing buckets — failures there cost five figures or more and are non-negotiable. The next three are mid-range capital items. Interior is mostly cosmetic.

Reports vary in length and quality. Thorough inspectors produce 60–100 page reports with hundreds of photos. Less-thorough ones produce 30–40 page reports with sparse photo documentation. Length isn't directly proportional to quality, but a report with no photos of attic, crawlspace, or roof close-ups tells you the inspector didn't access those areas. A good report shows the inspector physically walked the roof, entered the attic, and crawled the crawlspace.

Severity classification: what the labels actually mean

Most inspectors use a three-tier severity scheme. The labels vary. The concepts are consistent.

Safety / immediate / critical

Findings that pose immediate risk to occupants or property. Examples: missing GFCI on a kitchen circuit, gas leak suspected at a furnace connection, double-tap breakers in the panel, exposed asbestos insulation, missing handrails on stairs over a certain height, carbon monoxide detectors absent. These get addressed before move-in. Most don't cost much to fix individually but their presence reflects a property the prior owner didn't maintain to current code.

Major / repair / significant

Findings that aren't immediate hazards but represent meaningful repair cost or system end-of-life. Examples: roof at 80% of expected lifespan, water heater showing rust at the base, HVAC over 15 years old and inefficient, foundation cracks recommended for structural engineer evaluation, electrical panel obsolete (Federal Pacific, Zinsco, Challenger panels are commonly flagged), galvanized supply plumbing reaching end of life. These drive negotiation — credits, price reductions, or seller-funded repairs before closing.

Minor / monitor / maintenance

Findings that are normal aging, cosmetic, or deferred maintenance. Examples: caulk gaps at exterior trim, missing weatherstripping on doors, loose toilet, cracked driveway sections, dirty HVAC filter, missing downspout extension. These don't drive negotiation; they become your maintenance to-do list after closing.

Deal-breakers — when to walk

Not every flagged finding is a reason to walk. The deal-breakers are the ones where the cost or risk exceeds what reasonable negotiation can recover. The patterns to watch for:

• Structural foundation issues (horizontal cracks, significant settlement, evidence of past hydraulic damage) flagged for structural engineer evaluation — and the structural engineer confirms major remediation needed. Foundation work routinely runs $15k-$80k+ and can extend timeline by months.
• Severe mold remediation across multiple areas — not a single small bathroom patch but systemic moisture intrusion that has produced widespread mold. Remediation plus underlying water-intrusion fix often exceeds $25k and creates indoor air quality concerns for years.
• Confirmed asbestos in friable form across major surfaces (popcorn ceilings, pipe insulation, floor tiles that are damaged) — abatement is expensive and disruptive.
• Environmental hazards (active soil contamination, abandoned underground tank confirmed leaking, lead paint with active deterioration in a home you intend to occupy with young children).
• Multiple major systems at end-of-life simultaneously — roof + HVAC + electrical panel + plumbing all needing replacement within two years adds up to $40-80k+ of capital outlay on top of purchase price.

On any of these, your contingency-removal decision should be informed by specialized inspection (structural engineer, environmental tester, electrician) — not just the general home inspector's note.

Negotiation items — what to ask for

Major-tier findings that aren't deal-breakers usually drive credits or pre-closing repairs. The general wisdom: credits are usually better than asking the seller to do repairs. Sellers under closing pressure rarely produce high-quality repair work. A cash credit lets you do the work to your standard after closing.

Reasonable scope for negotiation: items that materially affect habitability or capital cost. Roof at end of life, HVAC nearing replacement, electrical panel obsolescence, plumbing material concerns (galvanized, polybutylene), water heater age, major appliance failures, structural concerns confirmed by specialist. Frame each ask with the finding, a specialist quote or industry average cost, and the proposed credit.

Typical credit ranges in moderate residential markets: $2,000–15,000 across multiple findings. Asking for everything is a tell that you'll bail anyway. Asking for the high-impact items with cost documentation is the path most sellers respect. In hot seller markets, expect the seller to refuse some asks. In slow markets, they'll absorb more.

Fix-later items — your renovation roadmap

Most of an inspection report is fix-later — minor and maintenance findings that don't need pre-closing attention but accumulate into a multi-year project list. This is where the report becomes most valuable post-closing.

Cluster findings by system and by priority. The first 90 days: safety items, anything water-related, anything blocking occupancy. The first year: HVAC service if not done, weatherproofing gaps that affect energy bills, exterior caulk and paint touch-ups, any plumbing supply lines flagged as galvanized. Years 2–5: roof if approaching end of life, electrical panel if obsolete, kitchen and bath updates if planned. Year 5+: full system replacements (HVAC, water heater) based on age estimates.

Turning this list into a sequenced plan is the step most owners skip. The inspection PDF goes into a Dropbox folder and gets forgotten. The half-remembered findings get repeated on the next inspection three years later. The Plan Builder in Perch was designed exactly for this — ingest the inspection PDF, parse findings into plan items grouped by system and severity, set target dates, and the items live as a working roadmap instead of wallpaper.

What inspectors miss

General home inspections have known gaps. Two add-ons are worth their cost in almost every transaction.

Sewer scope

A sewer scope inspection runs a camera through the lateral sewer line from the house to the city connection. Cost: $200–400. Catches root intrusion (especially in clay sewer pipe common in pre-1980 homes), bellies, separations, and obstructions. Sewer line replacement runs $5,000–25,000 depending on length and access. The cost-vs-risk math on the scope is obvious — always do it on homes older than 30 years.

Specialist evaluations for flagged systems

When the home inspector recommends evaluation by a specialist (structural engineer, licensed electrician, HVAC tech, foundation contractor), do it. The cost is usually $200–600 per specialist. The alternative is committing to a purchase on the home inspector's uncertain note. Specialists provide written reports that become negotiation ammunition or contingency-exit documentation.

Other add-ons by case

• Radon test ($150-250): worth it in radon-prone regions (most of the upper Midwest, parts of the Northeast and Mountain West). Mitigation is $1,500-3,000 if elevated levels detected.
• Mold air-quality test ($300-600): warranted if visible mold is found or if water-intrusion history is documented.
• Lead paint test ($300-500): mandatory disclosure for pre-1978 homes, but a separate test gives you the magnitude and locations.
• Pool inspection ($150-300): pools are excluded from most general home inspections.
• Well and septic inspection ($300-600): rural properties; the general inspector typically only does a flow-rate and visual check.

From report to plan

The inspection report's value is realized only when its findings become a working plan with costs, target dates, and assigned responsibility. The pattern that works: read the report fully within a week of receiving it; triage findings into the three buckets; turn deal-breaker findings into specialist follow-up requests; turn negotiation findings into a written ask with cost documentation; turn fix-later findings into a sequenced renovation plan with cost estimates and target years. The Plan Builder in Perch automates much of this last step from a PDF; manual versions work too in a spreadsheet or task tracker.

Frequently asked questions

Frequently asked

How long should it take to read an inspection report?

Plan for 1-3 hours for a thorough first read of a 60-90 page report on a property you're seriously evaluating. Read the summary section first, then go through each system section in order of capital impact (structure, roof, electrical, plumbing, HVAC, exterior, interior). Highlight items as you go: red for safety/critical, yellow for major, green for monitor.

What if the inspection finds something the seller didn't disclose?

In most states, sellers are required to disclose known material defects on a Seller's Property Disclosure form. Material findings the seller knew about and didn't disclose can be grounds for renegotiation, contract exit, or post-closing claims. The inspection is usually the moment you discover any gap. If the gap looks deliberate (especially for items the seller demonstrably knew, like recent repairs), document it carefully and consult your agent or a real-estate attorney.

Should I attend the inspection?

Yes if you can; attend in person or via FaceTime/Zoom from a distance. The walkthrough at the end with the inspector is the most useful 30 minutes of the entire transaction — they show you what they found, where, and how concerning it is. Reports don't capture inspector tone or contextual judgment as well as the walkthrough does. For remote buyers, schedule a live video walkthrough with the inspector at the end of the inspection — most accommodate this.

Can I use the same inspector for negotiation specialist follow-ups?

Generally no — home inspectors are generalists. If the inspection flags structural concerns, hire a structural engineer (not another home inspector) for the follow-up. Same for electrical, HVAC, foundation, mold, asbestos. Generalist follow-ups don't carry the same authority in negotiation as a specialist report.

How do I tell if the inspector did a thorough job?

Photo coverage is the easiest proxy. A thorough report includes 100+ photos showing attic, crawlspace, roof, panel interior, HVAC components, plumbing connections, foundation. Reports with few photos or photos limited to standing-on-the-ground angles indicate the inspector didn't access key areas. Also: the report's narrative quality (specific observations vs. boilerplate language) and severity discrimination (everything tagged the same is a sign the inspector isn't differentiating).