Home Inspection Checklist for Buyers: 2026 Walkthrough

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A home inspection checklist for buyers serves two purposes: it keeps the buyer organized during the on-site visit, and it gives the buyer a reference document for asking follow-up questions after the report arrives. The inspector follows a separate, more comprehensive Standards of Practice checklist that covers every system in the home. The buyer’s checklist is a parallel tool that helps the buyer participate intelligently in the walkthrough, take useful photos for personal reference, and remember what to ask. The list below is built around the four phases of the inspection day: pre-visit preparation, arrival and exterior walk, interior systems, and the verbal walkthrough.

Pre-visit preparation

Before the inspector arrives, the buyer should review the listing photos, the seller’s property disclosure, and any documents the seller has provided about recent repairs or upgrades. The disclosure form lists known defects, and gaps between what the disclosure says and what the inspector finds become discussion points during the objection phase. Buyers should print or save these documents to their phone for reference on site.

The buyer should also gather basic information: home age, square footage, year of last roof replacement if known, type of foundation, and water source (city or well). This context helps the buyer understand whether a finding is significant or routine. A 30-year-old furnace is past its expected service life regardless of how it looks. A six-month-old furnace with a manufacturer’s defect is a different problem altogether.

Arrival and exterior walk

The inspector typically starts outside. Buyers should walk with the inspector and observe the following items on the exterior:

Roof condition: visible shingle granule loss, missing or curled shingles, flashings at chimneys and pipe penetrations, gutter condition, downspout extensions away from the foundation. Front Range homes accumulate hail damage that may not yet have leaked but will. Ask the inspector how recently the roof was likely replaced based on visible wear.

Siding and exterior cladding: peeling paint, cracked stucco, missing caulk at window perimeters, damaged or rotted wood trim. Pre-1978 homes with peeling paint are a lead paint concern that may require a separate evaluation. The buyer can find context in the lead paint pamphlet guide.

Grading and drainage: the soil around the foundation should slope away from the house. Negative grading or evidence of pooling water near the foundation predicts basement moisture problems. Window wells should have functional covers and proper drainage.

Exterior structures: decks, patios, fences, retaining walls, sheds, and detached garages. The inspector evaluates these as accessible and visible. Older decks built without modern code-compliant ledger flashings are common defects on Front Range homes built before 2000.

Interior systems checklist

Once inside, the inspector works through each system in a consistent order. The buyer can follow along with a simple list:

Electrical panel: location, age, capacity (amperage), brand, presence of double-tapped breakers, federal Pacific or Zinsco panels (which have known safety histories), missing knockouts. Ask the inspector to estimate the panel’s remaining service life.

Outlets and switches: GFCI protection in kitchens, bathrooms, garages, basements, and exterior locations. AFCI protection in bedrooms for newer homes. Three-prong outlets that are not actually grounded (a common older-home issue).

Plumbing supply: visible material (copper, PEX, galvanized, polybutylene), age of water heater, condition of shut-off valves at the meter and at fixtures, water pressure at fixtures. Polybutylene supply lines installed in the 1980s and 1990s have a known failure history.

Plumbing drains: kitchen sink drains during a test fill, tub and shower drains, evidence of past leaks under sinks, condition of visible drain piping. Cast iron drain lines in pre-1980 homes are common but reaching the end of service life.

HVAC: furnace age, type, condition of the heat exchanger if visible, condition of the air filter, supply and return duct condition, evidence of recent service. Air conditioner age, condition of the outdoor unit, refrigerant line insulation, and operational test if outdoor temperature allows safe operation.

Water heater: age, type (tank, tankless, gas, electric), condition, temperature pressure relief valve and discharge tube, condition of supply connections. Most tank water heaters last 10 to 15 years. A unit older than that is a near-term replacement.

Attic checklist

The attic is one of the highest-information spaces in the home. The buyer should ask the inspector to summarize what was observed: insulation depth and type, ventilation adequacy, signs of past or active leaks, condition of the rafters and trusses, evidence of pest activity, and any electrical or plumbing work that violates current standards.

Basement and crawl space checklist

Basements and crawl spaces reveal the home’s water history. The buyer should look for efflorescence (white powder on concrete from past water), staining at the base of walls, evidence of past sump pump activity, condition of any waterproofing systems, and the condition of exposed framing. Crawl spaces should have a vapor barrier, adequate ventilation or encapsulation, and no standing water.

Interior finishes and rooms

The inspector walks every room and notes condition of walls, ceilings, floors, windows, doors, and finishes. The buyer should pay attention to specific items:

Windows: type (single, double, triple pane), age, condition, evidence of failed seals between panes, operation of locking hardware, condition of caulk and weatherstripping. The buyer should open and close at least one window per room during the visit.

Doors: operation, condition of hardware, evidence of recent floor settling that affects door operation. A door that suddenly does not close properly often signals foundation movement.

Floors: level, condition, evidence of past water damage at baseboards, condition of carpet, tile grout, hardwood finish. Sloping floors in older homes are sometimes original construction, sometimes structural movement.

Ceilings: stains that suggest past or active leaks, cracking patterns that suggest framing movement, evidence of texture patching that may indicate past repairs. A round brown stain on a ceiling almost always indicates a past plumbing or roof leak.

Kitchen and bath checklist

The kitchen and baths concentrate plumbing, electrical, and ventilation in small spaces, which makes them defect-rich. Buyers should observe the following:

Kitchen: condition of cabinets and counters, GFCI outlets at counter level, range hood vented to exterior or interior, dishwasher operation and connections, ice maker line condition, garbage disposal operation. Older homes often have ungrounded outlets and unvented range hoods.

Baths: ventilation fan operation and exterior termination, GFCI outlet operation, condition of tile grout and tub caulk, evidence of past leaks at toilet base and shower pan, water flow and drainage at all fixtures. Front Range homes commonly have bathroom fans that discharge into the attic rather than to the exterior, which creates moisture and mold issues over time. See our mold inspection guidance for related context.

Garage and outbuildings

The garage is a separate inspection area with its own checklist:

Garage door: operation, automatic reverse function (a safety test required by code), condition of springs and tracks, door seal condition. Sectional garage doors more than 20 years old often have aging springs that are approaching failure.

Garage walls and ceiling: fire-rated separation between garage and living space (typically 5/8-inch drywall on the wall and ceiling shared with the house), self-closing door from garage to house, condition of the garage floor slab. Garages with stored chemicals, batteries, or vehicles parked on damaged slabs require attention.

The verbal walkthrough

The verbal walkthrough at the end of the visit is often the most useful part of the day. The inspector summarizes findings while standing in the home, points to specific items, and answers questions in context. Buyers should bring questions prepared in advance and take notes during the walkthrough.

Useful questions to ask: which findings are urgent versus deferred maintenance, which findings the inspector would request remedy for if buying the home personally, which specialists the inspector recommends for follow-up evaluation, and whether any system surprised the inspector positively or negatively. The inspector cannot give legal or negotiation advice, but the inspector can rank findings by severity and replacement cost.

What to do with the checklist after the visit

Within 48 hours the buyer should receive the written report. The buyer’s checklist becomes a cross-reference document. Items the buyer flagged during the walk that did not appear in the report should prompt a follow-up question to the inspector. Items the inspector found that the buyer did not notice become learning moments for future property visits.

The buyer’s agent uses the report and the buyer’s notes to draft the Inspection Objection notice. Most agents recommend submitting a focused list of three to five high-impact items rather than a comprehensive line-by-line list. The checklist helps the buyer rank items by importance and prepare for the negotiation conversation with the seller’s agent. For broader context on the buying process, see the hiring a home inspector pillar guide.

Specialty inspections to consider

The general inspection checklist does not cover every concern. Buyers should consider adding specialty inspections based on home age, location, and condition:

Radon testing for any Front Range home, regardless of age. The EPA classifies most Colorado counties as Zone 1 for radon risk. Radon testing during inspection is the lowest-cost time to address this risk.

Sewer scope for homes more than 30 years old, homes with mature trees near the sewer line, and homes with any history of drain backups. A sewer line replacement runs $5,000 to $25,000.

Mold sampling when the inspector notes visible moisture, musty odors, or staining in any concealed space. Most general inspections do not include lab samples.

Lead paint evaluation for any home built before 1978, especially with children under six in the household. Asbestos awareness for homes with original flooring, popcorn ceilings, or pipe insulation installed before 1990.

References

• ASHI homebuyer checklist and resources — American Society of Home Inspectors
• InterNACHI buyer inspection resources — International Association of Certified Home Inspectors
• EPA lead paint resources for pre-1978 homes — U.S. Environmental Protection Agency
• HUD buyer guidance on inspections — U.S. Department of Housing and Urban Development

Front Range buyers can contact us for a referral to a vetted local inspector who will walk through the entire checklist with you.