The Complete Home Inspection Guide
Everything you need to know about the inspection process — what inspectors look for, what findings actually mean, and how to decide what matters.
A home inspection is a thorough visual examination of a property's condition, typically lasting 2–4 hours. A licensed inspector examines the home's major systems and components, then provides a detailed report of their findings.
Cost: Typically $300–$500 depending on home size and location. It's one of the best investments you'll make in the home buying process.
Important: An inspection is not a pass/fail test. Every home — even new construction — will have findings. The goal is to understand what you're buying so you can make informed decisions.
When you read your inspection report, think of each finding in one of these four categories:
Cosmetic
Doesn't affect safety or function. Think scuffed paint, minor nail pops, or a cracked tile.
Maintenance
Normal wear items that need attention soon but aren't urgent. Think caulking, gutter cleaning, or replacing weather stripping.
Repair Needed
Something is broken or not working properly and should be fixed. Think a leaky faucet, faulty outlet, or broken window seal.
Safety Hazard
A serious issue that could harm you or your family. Think exposed wiring, mold, structural cracks, or a faulty furnace.
What Inspectors Check (And What Findings Mean)
What Inspectors Look For:
- Cracks in the foundation walls and floors
- Signs of settling or shifting
- Structural beams and load-bearing walls
- Crawl space condition
Common Findings & How to Think About Them:
Red Flags to Watch For:
- •Horizontal cracks wider than 1/4 inch
- •Doors and windows that won't close properly throughout the house
- •Visible bowing of walls
- •Active water intrusion in basement/crawl space
💡 Pro Tip: Foundation repairs are among the most expensive fixes. Always get a structural engineer's opinion (not just the inspector's) for anything beyond hairline cracks. Budget $300–$500 for the engineer's assessment — it could save you tens of thousands.
What Inspectors Look For:
- Water pressure and flow at all fixtures
- Drain speed and signs of clogs
- Water heater age and condition
- Visible pipes for leaks or corrosion
- Type of piping material (copper, PEX, galvanized, polybutylene)
Common Findings & How to Think About Them:
Red Flags to Watch For:
- •Polybutylene pipes (gray plastic, common in 1978–1995 homes)
- •Sewer line issues or sewage smell
- •No hot water or very low pressure throughout
- •Active leaks in walls or ceilings
💡 Pro Tip: Always get a sewer scope ($150–$300) for homes over 20 years old. A broken sewer line can cost $5,000–$25,000 to replace, and it's not something the standard inspection covers.
What Inspectors Look For:
- Electrical panel condition and capacity
- Wiring type (copper, aluminum, knob-and-tube)
- GFCI protection in wet areas
- Outlet and switch function
- Grounding and bonding
Common Findings & How to Think About Them:
Red Flags to Watch For:
- •Knob-and-tube wiring still active
- •Burning smell from outlets or panel
- •Federal Pacific or Zinsco panels
- •Exposed or amateur wiring
💡 Pro Tip: Electrical issues are the #1 cause of house fires. Don't skip or minimize electrical findings. The good news: most electrical repairs are relatively affordable compared to structural or plumbing issues.
What Inspectors Look For:
- Shingle/roofing material condition and age
- Flashing around chimneys, vents, and skylights
- Gutters and downspouts
- Attic ventilation and insulation
- Signs of leaks or water damage
Common Findings & How to Think About Them:
Red Flags to Watch For:
- •Active leaks or fresh water stains
- •Multiple layers of roofing (indicates past cover-ups)
- •Sagging roof deck
- •Daylight visible through roof boards
💡 Pro Tip: The roof is one of the most expensive components of a home. Always ask the seller for the roof's age and any warranty documentation. If the inspector can't determine the age, assume the worst.
What Inspectors Look For:
- Furnace/heat pump age and operation
- Air conditioning performance
- Ductwork condition
- Thermostat function
- Filter condition
Common Findings & How to Think About Them:
Red Flags to Watch For:
- •Carbon monoxide detected
- •Cracked heat exchanger
- •No AC in hot climate
- •Strange smells when system runs
💡 Pro Tip: Ask the seller for maintenance records. A well-maintained 15-year-old system is better than a neglected 5-year-old one. Also check if the system uses R-22 refrigerant (Freon) — it's been phased out and refills are extremely expensive.
What Inspectors Look For:
- Basement/crawl space for water intrusion
- Stains on ceilings and walls
- Mold or mildew presence
- Grading and drainage around the home
- Sump pump operation (if present)
Common Findings & How to Think About Them:
Red Flags to Watch For:
- •Active mold growth
- •Standing water in basement/crawl space
- •Sump pump not working
- •Strong musty odors throughout
💡 Pro Tip: Water is a home's #1 enemy. Most foundation, mold, and structural problems start with water. Even if the inspection looks clean, invest in good gutters, proper grading, and a working sump pump.
What Inspectors Look For:
- Termite damage and evidence
- Carpenter ant activity
- Wood rot in exterior trim and framing
- Rodent droppings or nesting evidence
Common Findings & How to Think About Them:
Red Flags to Watch For:
- •Active termite infestation with structural damage
- •Extensive wood rot in structural members
- •Large rodent infestation
- •Carpenter bee damage to structural wood
💡 Pro Tip: In many states, a separate termite/WDO inspection is required for mortgage approval. Even if it's not required, always get one — it's only $75–$150 and could save you thousands.
What Inspectors Look For:
- Window operation and seal integrity
- Door function and weatherstripping
- Siding condition
- Exterior caulking and paint
- Deck and porch condition
Common Findings & How to Think About Them:
Red Flags to Watch For:
- •Rotted window frames throughout
- •Large gaps in exterior caulking
- •Deck pulling away from house
- •Siding damage exposing sheathing
💡 Pro Tip: Windows are the second most expensive item after the roof. If many windows need replacement, that's a $10,000–$20,000+ cost. Use it as a strong negotiation point.
The inspection report is your most powerful negotiation tool. Here's how to use it wisely:
Focus on safety and structural issues
Sellers are most likely to agree to fix safety hazards and structural problems. Cosmetic requests often get rejected.
Ask for credits instead of repairs
A credit lets you choose your own contractor and ensure quality. Sellers doing repairs often go with the cheapest option.
Get multiple quotes
For major issues, get 2–3 contractor estimates. This gives you leverage in negotiations and realistic cost expectations.
Don't nitpick everything
Asking for 50 small fixes makes you look difficult. Focus on the 3–5 most important items.
Know your walk-away point
Before the inspection, decide what issues would make you walk away. Stick to that boundary.
Understand 'as-is' doesn't mean 'no inspection'
Even in as-is sales, you can still inspect and walk away. You just can't ask for repairs.
Schedule (Days 1–3 after contract)
Book your inspector ASAP after your offer is accepted. Good inspectors book up fast.
Inspection Day (2–4 hours)
Attend the inspection! Walk with the inspector and ask questions. This is your chance to learn about the home.
Receive Report (24–48 hours)
You'll get a detailed report with photos. Don't panic — it will be long. Focus on the summary.
Review & Prioritize (Days 1–2)
Categorize findings by severity. Decide which items matter most to you.
Negotiate or Accept (Days 2–5)
Submit your repair requests or credit requests to the seller through your agent.
Resolution (Before contingency deadline)
Reach agreement on repairs/credits, or exercise your right to walk away.
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