Buying

Home Inspection Checklist: 47 Things Your Inspector Should Check

A home inspection is your last line of defense against a money pit. Know what's being checked — and what questions to ask when the report comes back.

Front porch and entry of a house
Front porch and entry of a house. Photo: Unsplash.
On this page
  1. Why the Home Inspection Is Non-Negotiable
  2. What a Standard Inspection Covers
  3. Inspections Your Inspector Won't Perform
  4. Reading the Report: What's a Red Flag vs. a Yellow Flag

Why the Home Inspection Is Non-Negotiable

In competitive markets of 2021–2023, some buyers waived inspections to win bidding wars. That was a risk that cost many buyers tens of thousands of dollars in surprise repairs. With the market more balanced in 2026, virtually every buyer should conduct a full inspection — with rare exceptions for seasoned investors who know exactly what they're buying.

What a Standard Inspection Covers

Structural: Foundation, framing, load-bearing walls, roof structure. Look for settling cracks, bowing walls, and signs of water intrusion at the foundation.

Roof: Age, condition, flashing, gutters, downspouts. Asphalt shingles typically last 20–30 years. Metal roofs last 40–70 years. Your inspector should note remaining useful life.

Electrical: Panel age and capacity, wiring type (aluminum wiring is a red flag), GFCI outlets in wet areas, grounding.

Plumbing: Supply lines, drain lines, water heater age (typical lifespan 10–15 years), water pressure, visible pipe condition.

HVAC: Age, condition, filter status, ductwork, thermostat operation. Furnaces typically last 15–20 years; central AC units 15–20 years.

Insulation and ventilation: Attic insulation levels, vapor barriers, soffit and ridge vents, bathroom exhaust.

Interior: Windows, doors, floors, walls, ceilings, stairs, handrails, smoke and CO detectors.

Exterior: Siding, trim, caulking, grading/drainage, driveways, walkways, decks, porches.

Inspections Your Inspector Won't Perform

Standard inspectors are generalists. Separately schedule: radon testing ($150–250, especially in high-risk areas), sewer scope inspection ($150–350, critical for homes over 30 years old), mold testing ($300–600 if you see staining), wood-destroying insect inspection (WDI/termite, $75–150), well and septic inspection if applicable.

Reading the Report: What's a Red Flag vs. a Yellow Flag

Red flags (renegotiate or walk away): Active roof leaks, foundation cracks with displacement, knob-and-tube or aluminum wiring, galvanized supply pipes, failing HVAC in the $5K+ replacement range, evidence of water intrusion in the basement or crawlspace.

Yellow flags (negotiate a credit or repair): Worn caulking, minor grading issues, older water heater, a few missing outlet covers, deferred maintenance items. Normal in any home over 10 years.

About this article

Written by IHB Editorial for Intelligent Home Buying. We explain trade-offs rather than recommend a company, and every market figure on this site names its source and period. Read our editorial standards and how we use data. Intelligent Home Buying is supported by labelled ads for companies owned by the same group that publishes it; ads do not decide what articles conclude. Advertising and independence.