What Do Home Inspectors Look For? A 7-Point Checklist for Buyers

A professional home inspection is a critical step in the homebuying process, providing a detailed assessment of a property's condition. The core purpose is to identify existing and potential problems with a home's major systems and structural components before you finalize the purchase. Based on our experience assessment, the inspection report equips you with the knowledge to negotiate repairs or adjust your offer, ultimately protecting your investment. This article outlines the seven key areas a certified home inspector will examine.

What Does a Home Inspector Check on the Roof?

The inspection begins at the top. A home inspector evaluates the roof's condition, estimated remaining lifespan, and its ability to protect the home from the elements. They look for signs of wear that could lead to leaks or structural damage. The inspector will typically examine the roof from the ground or with binoculars, and may walk on it if it is safe to do so.

Key indicators of roof issues include:

• Missing, loose, or curled shingles
• Rust on the flashing (the metal strips used to direct water away from critical areas)
• Excessive algae or moss growth
• Uneven areas or soft spots, which can indicate underlying rot
• Signs of moisture in the attic or on ceiling surfaces

How Is Water Damage Identified During an Inspection?

Water is a primary cause of long-term damage. The inspector will meticulously search for evidence of past or current water intrusion, which can lead to mold growth and compromise structural integrity. They check areas where water is most likely to enter, such as around windows, doors, and the foundation.

An inspector looks for:

• Bubbling or peeling paint and wallpaper
• Water staining on ceilings, walls, and around window frames
• Wet insulation in the attic or crawl spaces
• Discolored or warped flooring materials

What Foundation Problems Do Inspectors Look For?

The foundation is the bedrock of the home's structural soundness. The inspector assesses the condition of the foundation walls and the soil around them. Changes in soil moisture, from expansion when frozen to contraction when dry, can exert pressure on the foundation, leading to shifts or cracks.

Warning signs of foundation issues include:

• Cracks in basement walls or interior drywall
• Bouncy or noticeably uneven floors
• Gaps between walls and floors or around door frames
• Doors and windows that stick or won't close properly
• Leaning porches, stairs, or chimneys

What Are the Red Flags in an Electrical System?

Faulty wiring is a significant fire hazard. The National Fire Protection Association (NFPA) reports that electrical failures or malfunctions were responsible for 13% of home structure fires in a recent five-year period. The inspector will examine the visible components of the electrical system, including the main panel, outlets, and switches.

The inspector's checklist includes:

• Outdated knob and tube wiring or aluminum wiring, which are safety concerns in modern homes
• Double-tapped circuit breakers (two wires on a single breaker not designed for it)
• Missing GFCI (Ground Fault Circuit Interrupter) protection in kitchens, bathrooms, and other wet areas
• Exposed wiring or painted-over outlets
• Modifications to the electrical panel that may not be to code

How Are Heating and Cooling Systems Evaluated?

The HVAC (Heating, Ventilation, and Air Conditioning) system is tested for proper operation and safety. The inspector will run the furnace and air conditioner to ensure they produce adequate heated or cooled air throughout the house. A malfunctioning system can be costly to repair or replace.

The assessment focuses on:

• Rust around the furnace or air conditioning unit
• Dirty air filters, which reduce efficiency and air quality
• Cracked or disconnected ductwork
• Proper ventilation for gas-burning appliances to prevent carbon monoxide hazards

What Plumbing Issues Do Home Inspectors Find?

Plumbing problems often start small and hidden, leading to major damage. The inspector checks water pressure, drainage, and the condition of visible pipes. They look for leaks, corrosion, and outdated materials that may need replacement.

Common plumbing defects include:

• Leaky or rusted pipes, which can indicate a limited lifespan for the plumbing system
• Low water pressure, potentially signaling a clog or leak
• Running toilets, which waste water
• Evidence of hidden leaks under sinks or behind appliances

Does a Home Inspection Cover Pest Damage?

Most general home inspections include a visual check for signs of pest infestation. Insects like termites and carpenter ants, as well as rodents, can cause significant damage to wood structures and wiring. The inspector will look for telltale signs like droppings, frass (insect waste), damaged wood, and mud tubes.

If active pests or substantial damage is found, the inspector will likely recommend a specialized inspection from a licensed pest control operator to determine the full extent of the problem.

A home inspection provides an objective snapshot of the property's condition at the time of the visit. Not every issue is a deal-breaker; the report gives you the leverage to request repairs from the seller or negotiate a lower price. While a mortgage lender may not always require an inspection, investing in one is a highly recommended due diligence step for any homebuyer.