A home inspection is your chance to uncover hidden problems before you buy. It typically takes 2–4 hours and costs $300–$500, depending on property size and location. Understanding what happens during this critical step helps you ask smarter questions and protect your investment.
What Inspectors Actually Check
A professional home inspector examines the major systems and structure of a property. They'll evaluate the roof, foundation, electrical panel, plumbing, HVAC, and appliances. The inspector also looks for water damage, pest activity, insulation, and ventilation. They're checking whether things work now and whether they're likely to fail soon—not whether they're brand new.
Most inspections follow the American Society of Home Inspectors (ASHI) standards, which means you'll get a comprehensive review, not a selective one.
Before the Inspection Day
Schedule your inspection within your contingency period—typically 7–10 days after an offer is accepted. If you're buying in a competitive market, you might need to arrange it faster. Check that your inspector is licensed in your state (requirements vary; some states mandate it, others don't) and carries errors and omissions insurance.
Review the home's age and any disclosures the seller provided. If the house was built before 1980, ask the inspector to specifically test for lead paint. For older homes with original plumbing, discuss potential issues like polybutylene pipes or outdated wiring.
During the Inspection: What to Expect
The inspector will spend 2–4 hours walking through every room, attic, and crawl space. They'll use tools like moisture meters, outlet testers, and infrared cameras. You should attend if possible—this is your chance to learn about the property firsthand and ask questions as they work.
Here's what typically gets documented:
- Structural issues – cracks in foundation, settling, water intrusion signs
- Roof condition – age, missing shingles, flashing integrity, gutter function
- Electrical systems – panel safety, outlet grounding, breaker capacity
- Plumbing – water pressure, drain function, water heater age and condition
- HVAC – furnace/AC operation, thermostat function, filter condition
- Appliances – stove, dishwasher, refrigerator functionality (if included in sale)
- Insulation and ventilation – adequate attic ventilation, visible insulation
- Pest or water damage – staining, soft wood, termite evidence
Don't expect the inspector to move furniture, turn on every outlet, or access areas blocked by the seller. They also won't evaluate cosmetic issues or provide estimates for repairs.
Understanding the Report
You'll typically receive a detailed report within 24–48 hours after the inspection. Reports range from 20–60 pages and include photos, descriptions of findings, and severity classifications (major, minor, or informational).
A good report clearly separates actual defects from maintenance recommendations. For example, "water stain on basement wall" is a defect; "caulk around tub is cracked" is maintenance.
Use this report to negotiate repairs or credits with the seller, or decide whether to walk away. If major issues appear, get a specialist (roofer, electrician, plumber) to provide repair estimates.
Inspection Issues That Matter Most
Focus on structural, safety, and system issues over cosmetic ones. A roof that needs replacement in 2–3 years ($8,000–$15,000) is more urgent than outdated kitchen cabinets. Similarly, a failing foundation or electrical panel poses safety risks that cost thousands to fix.
Common deal-breakers include severe water damage, mold, structural settling, or failing septic systems. Minor issues like worn caulking or outdated fixtures rarely kill a deal but are good negotiation points.
After the Inspection
Review the report carefully and ask your agent or inspector to clarify anything you don't understand. Then decide: do you request repairs, ask for a credit, renegotiate price, or proceed as-is? Most purchase agreements allow 3–5 days to use inspection results before your contingency period expires.
If repairs are needed, consider whether the seller will actually complete them professionally or if you should handle them post-closing. Getting bids from licensed contractors helps you understand true costs.
Frequently Asked Questions
Q: Can I attend the inspection, and should I? Yes, you should attend if possible. Being present lets you ask questions, learn about the home's systems, and see issues firsthand rather than only reading about them.
Q: What if the inspection reveals major problems? You can request the seller make repairs, offer a credit toward closing costs, renegotiate the price, or walk away—it depends on your contract terms and how urgent the issues are.
Q: How do I find a qualified home inspector? Look for state licensure, ASHI membership, and online reviews; many platforms like Mercoly help you compare and find trusted inspectors in your area with verified credentials and customer feedback.
Schedule your home inspection early and attend the walkthrough—it's the best protection for your biggest investment.