Home Inspection: What to Expect and What It Costs

Home Inspection: What to Expect and What It Costs

You found a house you love, your offer was accepted, and now you're in the inspection period. This is arguably the most important step in the home-buying process — and it's the one that saves buyers from making the most expensive mistake of their lives. A home inspection can reveal hidden problems that could cost tens of thousands of dollars to fix, give you negotiating leverage, or even save you from buying a money pit.

In this guide, we'll walk you through everything: what inspectors look at, how much it costs, how to find a good inspector, what the most common issues are, and how to use the results to your advantage.

What Is a Home Inspection?

A home inspection is a thorough, non-invasive visual examination of a home's physical structure and major systems. It's conducted by a licensed or certified home inspector who evaluates the condition of the property and identifies defects, safety concerns, and items that may need repair or replacement.

A standard home inspection typically takes 2 to 4 hours depending on the size and age of the home. You'll receive a detailed written report — usually 30–80 pages — within 24–48 hours after the inspection.

Important: A home inspection is not a pass/fail test. Every home has issues. The inspector's job is to document the home's current condition so you can make an informed decision about the purchase.

What Home Inspectors Check

A comprehensive home inspection covers these major areas:

Structural Components

• Foundation: Cracks, settling, moisture intrusion, structural integrity
• Framing: Visible structural members, load-bearing walls
• Floors, walls, and ceilings: Cracks, water stains, level/plumb issues
• Attic structure: Rafters, trusses, ventilation

Exterior

• Roof: Shingles/materials condition, flashing, gutters, downspouts, estimated remaining life
• Siding and trim: Damage, rot, paint condition
• Windows and doors: Operation, seals, weatherstripping
• Grading and drainage: Slope away from foundation, standing water issues
• Driveway and walkways: Cracking, settling, trip hazards
• Decks and porches: Structural integrity, railings, connections to house

Roofing

• Type and condition of roofing material
• Estimated remaining useful life
• Flashings around chimneys, vents, and valleys
• Signs of leaks or previous repairs
• Condition of gutters, downspouts, and soffit/fascia

Plumbing

• Water supply lines and drain/waste/vent pipes
• Water heater (age, condition, capacity)
• Fixtures and faucets (operation, leaks)
• Water pressure and flow
• Sewer line condition (visual — may recommend camera inspection)
• Evidence of leaks under sinks, around toilets

Electrical

• Service panel (amperage, condition, capacity)
• Wiring type (copper, aluminum, knob-and-tube)
• Grounding and bonding
• GFCI protection in wet areas
• AFCI protection in bedrooms
• Outlets and switches (operation, polarity)
• Smoke and carbon monoxide detectors

HVAC (Heating, Ventilation, and Air Conditioning)

• Furnace/heat pump age, condition, operation
• Air conditioning system age, condition, operation
• Ductwork condition and insulation
• Thermostat operation
• Ventilation in attic, crawlspace, and bathrooms
• Filter condition

Interior

• Kitchen appliances (operation check)
• Bathrooms (fixtures, ventilation, caulking)
• Garage (door operation, fire separation, auto-reverse)
• Fireplace and chimney (visual inspection)
• Stairs, railings, and balconies
• Basement or crawlspace (moisture, insulation, vapor barriers)

How Much Does a Home Inspection Cost?

Home inspection costs vary based on the size of the home, its age, location, and the inspector's experience. Here's what to expect:

Home Size	Typical Inspection Cost
Under 1,000 sq ft	$250–$350
1,000–2,000 sq ft	$300–$450
2,000–3,000 sq ft	$400–$550
3,000–4,000 sq ft	$500–$700
4,000+ sq ft	$600–$900+

Additional Inspection Costs

Some things aren't included in a standard inspection and cost extra if you want them:

Add-On Inspection	Cost	When to Get It
Radon testing	$125–$200	Always recommended, especially in high-radon areas
Termite/pest inspection	$75–$150	Always recommended, often required by lender
Sewer line camera	$200–$500	Homes older than 25 years, or with big trees near sewer
Mold testing	$300–$600	If you see signs of mold or smell mustiness
Lead paint testing	$200–$400	Homes built before 1978
Well water testing	$100–$300	Any home with a private well
Septic inspection	$300–$600	Any home with a septic system
Pool/spa inspection	$150–$300	If the property has a pool

How to Choose a Home Inspector

Not all inspectors are created equal. Here's how to find a good one:

Qualifications to Look For

• State license or certification (required in most states)
• ASHI (American Society of Home Inspectors) or InterNACHI membership — these organizations require continuing education and adherence to standards of practice
• Errors and omissions insurance (E&O insurance) — protects both you and the inspector
• Experience: At least 500+ inspections completed, preferably 1,000+
• Background in construction or engineering is a bonus

Questions to Ask Before Hiring

• How many inspections have you performed?
• What does your inspection include? What's excluded?
• Can I attend the inspection? (The answer should always be yes)
• How long will the inspection take?
• When will I receive the report?
• Can I see a sample report?
• Do you carry E&O insurance?

Pro tip: Don't just hire the inspector your real estate agent recommends. While many agents have great inspector contacts, there's an inherent conflict of interest — agents get paid when the deal closes, and a thorough inspector who finds lots of problems could kill the deal. Get your own independent recommendation or research inspectors yourself.

Most Common Home Inspection Findings

After thousands of inspections, certain issues come up again and again. Here are the most frequent findings and what they mean:

Minor Issues (Usually Cheap to Fix)

• Missing or non-functioning GFCI outlets in bathrooms, kitchen, garage ($15–$25 each to install)
• Missing smoke or CO detectors ($20–$50 each)
• Caulking issues around tubs, showers, and windows ($10–$50 DIY)
• Minor grading issues (soil slopes toward foundation instead of away)
• Loose toilets, dripping faucets, running toilets ($50–$200 each)

Moderate Issues ($500–$5,000 to Fix)

• Aging water heater (life expectancy: 8–12 years, replacement: $1,000–$2,500)
• Insufficient attic insulation ($1,500–$3,500 to add)
• Minor roof repairs (missing shingles, damaged flashing: $300–$1,500)
• Outdated electrical panel (Federal Pacific or Zinsco panels: $1,500–$3,000 to replace)
• Poor bathroom ventilation (no exhaust fan or vented to attic: $200–$500)

Major Issues ($5,000+ to Fix)

• Roof replacement needed ($8,000–$25,000+ depending on size and materials)
• Foundation problems (cracks, settling, bowing walls: $5,000–$50,000+)
• Knob-and-tube or aluminum wiring (rewiring: $8,000–$20,000)
• HVAC system at end of life ($5,000–$15,000 to replace)
• Extensive water damage or mold (remediation: $2,000–$30,000+)
• Sewer line failure (replacement: $3,000–$15,000)

How to Use Inspection Results to Negotiate

This is where the inspection pays for itself many times over. Once you have the report, you have several options:

Option 1: Ask for Repairs

You can ask the seller to fix specific issues before closing. This works best for objective, safety-related items. Focus on:

• Safety hazards (electrical issues, structural concerns, radon)
• Major systems at end of life (roof, HVAC, water heater)
• Code violations and permit issues

Option 2: Ask for a Price Reduction

Instead of asking for repairs, you can negotiate a lower purchase price to account for the cost of repairs you'll handle yourself. This is often preferred because you can choose your own contractors and ensure quality work.

Option 3: Ask for a Closing Cost Credit

The seller contributes money at closing that you can use toward repairs. This keeps cash in your pocket when you need it most.

Option 4: Walk Away

If the inspection reveals deal-breaking issues — major structural problems, extensive mold, or environmental contamination — you may be better off walking away. Your inspection contingency protects your earnest money in this situation.

What NOT to Negotiate

• Cosmetic issues (worn carpet, outdated paint colors)
• Normal wear and tear
• Items that were visible before your offer (you presumably accounted for them in your price)
• A laundry list of every minor finding — focus on the big stuff

Attending the Inspection: What to Do

Always attend your home inspection. This is your chance to learn about the home's systems and condition firsthand. Here's how to make the most of it:

• Plan to be there for the entire inspection (2–4 hours)
• Bring a notepad and your phone for notes and photos
• Ask questions — a good inspector loves educating buyers
• Ask about maintenance — "How often should I service the HVAC?" "When will the roof need replacing?"
• Don't panic when issues are found — every house has them
• Focus on the big picture — structural, safety, and expensive systems

The Bottom Line

A home inspection is the best $300–$500 you'll spend during the home-buying process. It protects you from costly surprises, gives you negotiating power, and helps you understand exactly what you're buying. Never skip it — even in a competitive market where sellers might pressure you to waive the inspection contingency.

Special Inspections to Consider

Depending on the home's age, location, and characteristics, you might want additional specialized inspections beyond the standard home inspection:

Chimney Inspection

If the home has a fireplace, a chimney inspection ($100–$250) can reveal creosote buildup, cracked flue liners, missing caps, and structural issues that are fire hazards. The National Fire Protection Association recommends annual chimney inspections for any home with a fireplace.

Foundation/Structural Inspection

If the general inspector notes concerns about the foundation, hire a structural engineer ($300–$800) for a detailed assessment. They can tell you whether cracks are cosmetic or structural, and provide repair recommendations with cost estimates.

Environmental Testing

Depending on your area, you may want testing for asbestos (pre-1980 homes), lead paint (pre-1978 homes), radon, or underground oil tanks. These can range from $100 to $500 each but can save you from massive remediation costs down the line.

New Construction Inspections

Don't skip the inspection just because the home is brand new. New construction homes can have just as many issues as existing homes — sometimes more, because builders are working on tight schedules with subcontractors who may cut corners. Common findings in new construction include improperly installed flashing, missing insulation in spots, plumbing leaks behind walls (caught before drywall goes up), grading issues, and HVAC installation deficiencies.

Ideally, schedule three inspections for new construction:

• Pre-drywall (rough-in) inspection: After framing, plumbing, electrical, and HVAC are roughed in but before drywall goes up. This is your only chance to see inside the walls.
• Final inspection: After the home is complete but before closing. Your standard home inspection.
• 11-month warranty inspection: Just before your builder's 1-year warranty expires. Catch any issues that have developed and get them fixed on the builder's dime.

The Inspection Report: What to Look For

Your inspection report will likely be 30–80 pages long. Don't let the volume overwhelm you. Here's how to read it effectively:

• Look at the summary first: Most reports include an executive summary highlighting major concerns. Start here.
• Focus on safety issues: Anything flagged as a safety hazard should be addressed regardless of cost.
• Prioritize systems: Issues with the roof, foundation, electrical, plumbing, and HVAC are the most expensive to fix and most impactful on the home's livability.
• Note deferred maintenance: Items that aren't urgent now but will need attention in the next 1–5 years help you budget for future expenses.
• Ignore cosmetic observations: Scuffed paint, minor carpet wear, and similar cosmetic notes are not worth negotiating over.

What Inspectors Cannot Check

It's important to understand the limitations of a home inspection:

• Inside walls: Inspectors can't see through drywall. Hidden problems like mold, termites, or outdated wiring behind walls may not be detected.
• Underground: Sewer lines, septic systems, and underground tanks require specialized equipment to inspect.
• Cosmetically concealed issues: Fresh paint, new flooring, or staged furniture can hide problems. An experienced inspector knows where to look, but some defects are deliberately hidden.
• Code compliance: A home inspection is not a code inspection. The inspector evaluates condition and safety, not whether every detail meets current building codes.
• Future problems: The inspection is a snapshot of the home's current condition. A system that works fine today could fail next month.
• Exact costs: Inspectors can identify issues but generally don't provide repair cost estimates. You'll need to get quotes from contractors for specific pricing.
• Permit history: The inspector can see the results of work but can't verify whether proper permits were obtained. Check with your local building department for permit history.

Home Inspection vs. Home Warranty

Some buyers confuse home inspections with home warranties, but they serve completely different purposes. A home inspection evaluates the current condition of the home before purchase. A home warranty is an ongoing service contract that covers the cost of repairing or replacing major systems and appliances after you move in. You need both — the inspection tells you what you're buying, and the warranty protects you from unexpected breakdowns after closing. Many sellers offer to pay for the first year of a home warranty as part of the deal, which is always worth accepting.

For a complete picture of what buying a home costs, from inspection to closing day, check out our first-time homebuyer cost guide.