What to Look for When Doing a Home Inspection: Buyer Walk-Along
The day of the home inspection is one of the most useful days in the entire home-buying process for the buyer who attends and pays attention. The credentialed inspector is going to systematically work through every accessible system in the house, taking photographs, making notes, and ultimately producing a 30 to 80 page report. The buyer’s role during that walkthrough is different — not to duplicate the inspector’s work, but to observe alongside, ask questions, and absorb the context that does not always make it into the written report. This guide is a walk-along checklist for the buyer: what to look for, what to ask, what to note for follow-up, and how to make the inspection day as useful as possible.
What is the buyer’s actual role during the inspection?
The buyer is not the inspector, and the buyer should not try to perform the inspection. The buyer’s job is to observe, listen, ask questions, and take notes. The inspector is going to systematically check every accessible system; the buyer is going to absorb context — how the house feels to walk through, what the floor plan actually looks like in practice versus how it looked in the listing, which finishes are well-kept and which are tired, and what specific concerns from the showing now make more sense or less sense in light of what the inspector is finding.
Bring a notebook. Bring a charged phone for photos. Wear comfortable clothing for any crawl space or attic visits if you plan to follow the inspector closely. Plan for 2 to 4 hours on site. Eat before you arrive — inspections are tiring, and a hungry buyer makes worse decisions than a fed buyer.
Exterior walk-along: what to look for
The inspector typically starts outside. While the inspector is photographing the roof, walking the foundation perimeter, and checking drainage, the buyer should walk the exterior independently and note: how does the property grade slope around the foundation; are there any cracks or settlement signs visible at the foundation; is the cladding in good condition or showing wear; are gutters and downspouts in good shape and directing water away from the foundation; what does the driveway and walkway condition look like; are there mature trees close to the house that might affect the roof or foundation; what does the back-yard drainage look like during rain (ask the seller’s agent if relevant).
Take photos. Photos taken by the buyer during the walkthrough are useful later when reviewing the written report — they help the buyer connect what the report describes to what the buyer actually saw. Look at the property line, the fence condition, any outbuildings, and the general state of the landscaping. None of these are MPR-deficiency items, but they contribute to ownership-cost planning.
Roof and attic walk-along
The inspector will either walk the roof (where safely accessible) or photograph it from the ground or by drone. The buyer typically does not climb on the roof. What the buyer can do: ask the inspector what the roof’s apparent age and remaining service life look like, whether any visible damage exists, whether the flashing around penetrations (chimney, plumbing vents, skylights) looks intact, and whether the attic ventilation appears adequate from the eave and gable vent visibility.
For the attic visit, if the inspector enters the attic through a pull-down ladder or hatch, the buyer often does not follow (attic spaces can be cramped, hot, and full of insulation dust). Ask the inspector what they found: insulation depth and condition, signs of moisture or roof leaks, evidence of pests, ventilation adequacy, electrical splices or junctions visible.
Interior walk-along: room by room
Inside, the inspector works through each room systematically — testing receptacles with a tester, checking windows for operation, looking at door operation, examining the ceiling and walls for stains, opening every accessible cabinet and closet. The buyer can follow loosely and note: do the floors feel level and solid; are there visible water stains on ceilings or walls; do the windows operate properly; do the interior doors close and latch; what does the natural light look like in each room; are the room dimensions matching the listing; what is the storage situation in each closet.
The kitchen and bathrooms warrant extra buyer attention. In the kitchen: check that appliances operate, look under the sink for past or current leaks, note the cabinet quality and condition. In the bathrooms: check that fixtures function, note any signs of past water damage, observe ventilation (exhaust fan or window). Ask the inspector specifically about plumbing supply lines under sinks and at toilet connections — these are common minor-leak indicators.
Electrical panel and major mechanical systems
The inspector opens the electrical panel and the major mechanical systems (furnace, water heater, air conditioning if seasonally testable). The buyer should stand back and listen rather than trying to interpret the inspector’s findings in real time. Ask: what is the panel brand and is it on any industry-flagged lists; what is the age of the furnace and its remaining service life; what is the age and condition of the water heater; if seasonally testable, what does the air conditioning condition look like; is there evidence of past repairs or replacements that warrant documentation requests from the seller.
For Front Range buyers, mechanical system condition matters substantially because of Colorado’s broad temperature swings. A furnace at end-of-life is a significant ownership-cost item to plan for. A water heater near end-of-life is a leak risk worth budgeting against.
Crawl space walk-along (if applicable)
For properties with a crawl space, the inspector enters the crawl through a hatch and checks the foundation, floor framing, plumbing supply and drain runs, electrical, insulation, and any signs of moisture or pests. The buyer often does not follow into the crawl space — it is typically tight, dirty, and uncomfortable. Ask the inspector what they found: foundation condition, evidence of moisture or standing water, insulation condition, signs of pests or rodents, plumbing condition, electrical junction visibility.
Crawl spaces are one of the most common locations for hidden issues that affect the rest of the property. A moisture-laden crawl space contributes to mold in the floor framing, attracts pests, and reduces indoor air quality on the floor above. Ask specifically whether the crawl space has a vapor barrier and whether it is intact.
Specific concerns from the showing
The buyer should arrive at the inspection with a list of specific concerns from the property showing. A door that did not close right. A floor area that felt soft underfoot. A stain on a ceiling. An odd smell in a particular room. An outdated-looking electrical panel. A water heater that seemed old. A roof that looked worn from the curb. Each of these concerns is worth raising with the inspector during the walkthrough — the inspector can examine the specific concern in detail and explain what they observe.
Many of these concerns turn out to be minor. Some turn out to be substantial. Either way, the buyer benefits from having the inspector evaluate the specific items the buyer wondered about during the showing.
Questions worth asking the inspector during the walkthrough
Useful questions throughout the inspection: what is the most significant finding so far; what items are routine maintenance versus immediate concerns; what would you flag as worth negotiating; what specialty follow-ups would you recommend; in your experience with this neighborhood, what should I be particularly aware of; if you owned this house, what would you do in the first year; what is the typical service life remaining on the major systems.
The inspector’s answers shape the buyer’s interpretation of the written report. The conversational context — the inspector’s tone, the way they describe findings, the items they choose to elaborate on — communicates more than the report’s structured text alone. Buyers who attend get this context. Buyers who skip the on-site visit do not.
What not to do during the inspection
Do not try to operate systems yourself. Do not move appliances or furniture. Do not pull insulation. Do not open the electrical panel. Do not climb on the roof. Do not enter the crawl space without the inspector’s invitation. Do not slow down the inspector to ask every question in real time — save the questions for natural breaks between system checks. Do not bring children to the inspection (the property is not safe to wander through with children unattended, and the inspector’s attention is on the property).
Do not assume the inspector will catch every possible defect. The inspector’s job is to identify accessible and visible issues per the SOP. Items hidden behind walls, inside concealed systems, or in inaccessible spaces fall outside scope. The deeper background on inspection scope is in our pre purchase inspection definition guide.
Add-on services to consider during the inspection
Specialty add-ons that often pair with the standard inspection: radon testing (particularly important in Colorado — most counties show elevated radon zones), sewer scope (worth considering for properties with mature trees near the sewer line), mold sampling (where visible moisture or musty odors raise concern), thermal imaging (supplementary scan for hidden moisture and insulation gaps), water testing (for properties on well systems), lead-paint testing (for pre-1978 homes where renovation is planned).
If the buyer did not arrange add-ons before the inspection day, ask whether they can be added during the visit or scheduled as a quick follow-up. Many inspectors accommodate add-ons that the buyer wants to add after seeing the property.
What to listen for, not just look for
Sound matters during the inspection. Loose or settling floor framing produces creaks underfoot. Failing HVAC equipment produces unusual operating noises — rattles, hums that change pitch, fans that hesitate before starting. Plumbing fixtures sometimes produce telltale sounds when slow drains or partial blockages are present. The inspector is trained to notice these audible signals, and the buyer who attends can pick up on the same context when the property is quiet.
Smell matters too. Musty odors in basements, crawl spaces, or persistent rooms can indicate hidden moisture or mold. Gas odors near appliances warrant immediate inspector attention. Sewer odors from drains may indicate dry traps or venting issues. The buyer who walks the property attentively notices these subtle signals, and they often turn out to be useful follow-up triggers.
How to take useful notes during the walkthrough
Note-taking discipline pays off when the buyer reviews the written report later. Useful notes capture: which room the observation was in; what the observation was (a stain, a sound, a concern); what the inspector said about it; whether follow-up was recommended; and any photo number that corresponds to the observation. Tagging notes by room speeds up later cross-reference with the report’s room-by-room organization.
Use the phone’s camera generously. Photos taken by the buyer from the buyer’s perspective complement the inspector’s documentation — the buyer’s photos capture context that may not be in the report. Wide shots of each room, close-ups of any concerning items, and photos of major mechanical equipment serial-number plates are all useful.
The neighborhood and street-level context
Before or after the inspection, walk the neighborhood. Note the condition of nearby properties (well-maintained or declining), the traffic patterns at different times of day, the proximity to noise sources (highways, railroads, commercial activity), and any obvious environmental factors (industrial sites, agricultural runoff, flood-zone characteristics). These contextual factors affect the property’s long-term value and the buyer’s quality of life but are not in the inspector’s SOP scope.
For Front Range properties, neighborhood factors that commonly affect buyer decisions include school district boundaries, HOA presence and rules, snow-removal patterns in winter, and proximity to fire-risk zones along the wildland-urban interface.
After the inspection: using what you learned
After the inspector leaves, the buyer typically receives the written report within 24 to 48 hours. Read the report carefully. Compare it to the notes and photos the buyer took during the walkthrough. Highlight items the buyer wants to discuss with the real-estate agent for renegotiation, contingency-removal, or contract-termination consideration. The buyer’s window for action is the contractual inspection contingency period, typically 7 to 14 days from offer acceptance.
The broader hiring-side and decision-side framework is in our hiring a home inspector pillar.
References
- ASHI inspector resources and consumer information — American Society of Home Inspectors
- InterNACHI Standards of Practice — InterNACHI
- FTC consumer guidance on buying a house — Federal Trade Commission Consumer Advice
- HUD home inspection consumer resources — U.S. Department of Housing and Urban Development
- InterNACHI buyer’s guide — InterNACHI