BUYER PROTECTIONDecember 10, 202512 min read

Home Inspection Red Flags: 15 Deal Breakers That Should Make You Walk Away

Not every inspection issue is a deal breaker—but some absolutely are. Here are the 15 red flags that could cost you $10,000 to $100,000+ if you ignore them.

MT

Michael Thompson

Home Inspection Expert • 15+ Years Experience

🚨 The Big 5 Deal Breakers

Foundation

$10K-$100K+

Roof

$8K-$30K

Mold

$2K-$30K+

Termites

$3K-$50K+

Electrical

$5K-$20K

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📋 Before We Start: Your Inspection Contingency

If your contract includes an inspection contingency (it should!), you can back out and get your earnest money back if the inspection reveals issues you're not comfortable with. This is your protection. Use it.

The 15 Home Inspection Red Flags

#1

Foundation Problems

Repair Cost: $10,000 - $100,000+

CRITICAL

Warning Signs:

  • ⚠️ Large cracks (>1/4 inch)
  • ⚠️ Doors/windows that stick
  • ⚠️ Uneven floors
  • ⚠️ Water in basement

Our Verdict: Walk away unless seller fixes or massive price reduction

#2

Major Roof Damage

Repair Cost: $8,000 - $30,000

CRITICAL

Warning Signs:

  • ⚠️ Missing/curling shingles
  • ⚠️ Sagging roof line
  • ⚠️ Multiple layers of roofing
  • ⚠️ Active leaks

Our Verdict: Negotiate full replacement or walk

#3

Extensive Mold

Repair Cost: $2,000 - $30,000+

CRITICAL

Warning Signs:

  • ⚠️ Visible mold growth
  • ⚠️ Musty odor
  • ⚠️ Water stains
  • ⚠️ Health symptoms during viewing

Our Verdict: Get mold specialist. Walk if structural or HVAC affected

#4

Termite/Pest Damage

Repair Cost: $3,000 - $50,000+

HIGH

Warning Signs:

  • ⚠️ Hollow-sounding wood
  • ⚠️ Mud tubes on foundation
  • ⚠️ Sawdust piles
  • ⚠️ Damaged wood structures

Our Verdict: Get pest inspection. Walk if structural damage extensive

#5

Faulty Electrical System

Repair Cost: $5,000 - $20,000

HIGH

Warning Signs:

  • ⚠️ Knob and tube wiring
  • ⚠️ Aluminum wiring
  • ⚠️ Overloaded panels
  • ⚠️ Ungrounded outlets

Our Verdict: Fire hazard. Require upgrade or walk

#6

Plumbing Nightmares

Repair Cost: $5,000 - $25,000

HIGH

Warning Signs:

  • ⚠️ Polybutylene pipes
  • ⚠️ Lead pipes
  • ⚠️ Sewer line issues
  • ⚠️ Low water pressure everywhere

Our Verdict: Get sewer scope. Walk if main line needs replacement

#7

HVAC System Failure

Repair Cost: $5,000 - $15,000

MEDIUM

Warning Signs:

  • ⚠️ System 15+ years old
  • ⚠️ Uneven heating/cooling
  • ⚠️ Strange noises
  • ⚠️ High utility bills

Our Verdict: Negotiate replacement cost credit

#8

Water Damage History

Repair Cost: $2,000 - $20,000+

HIGH

Warning Signs:

  • ⚠️ Water stains on ceilings/walls
  • ⚠️ Warped flooring
  • ⚠️ Peeling paint
  • ⚠️ Efflorescence on basement walls

Our Verdict: Investigate source. Walk if ongoing or structural

#9

Asbestos Present

Repair Cost: $1,500 - $30,000

MEDIUM

Warning Signs:

  • ⚠️ Homes built before 1980
  • ⚠️ Popcorn ceilings
  • ⚠️ Old floor tiles
  • ⚠️ Pipe insulation

Our Verdict: OK if undisturbed. Budget for removal if renovating

#10

Unpermitted Work

Repair Cost: Varies widely

MEDIUM

Warning Signs:

  • ⚠️ Additions not on records
  • ⚠️ DIY electrical/plumbing
  • ⚠️ Converted garage
  • ⚠️ Basement bedroom without egress

Our Verdict: May affect insurance/resale. Negotiate or walk

#11

Radon Levels High

Repair Cost: $800 - $2,500

LOW

Warning Signs:

  • ⚠️ Test results >4 pCi/L
  • ⚠️ Basement or ground floor

Our Verdict: Easily fixable with mitigation system. Negotiate cost

#12

Lead Paint

Repair Cost: $1,000 - $10,000

MEDIUM

Warning Signs:

  • ⚠️ Homes built before 1978
  • ⚠️ Chipping/peeling paint
  • ⚠️ Children will live there

Our Verdict: OK if intact. Budget for remediation if renovating

#13

Grading/Drainage Issues

Repair Cost: $1,000 - $10,000

MEDIUM

Warning Signs:

  • ⚠️ Water pooling near foundation
  • ⚠️ Sloping toward house
  • ⚠️ Wet basement
  • ⚠️ Erosion

Our Verdict: Fixable but investigate for water damage

#14

Chimney Problems

Repair Cost: $1,000 - $10,000

LOW

Warning Signs:

  • ⚠️ Cracked flue
  • ⚠️ Missing cap
  • ⚠️ Damaged masonry
  • ⚠️ Creosote buildup

Our Verdict: Usually fixable. Get chimney inspection

#15

Old/Damaged Windows

Repair Cost: $5,000 - $20,000

LOW

Warning Signs:

  • ⚠️ Single-pane glass
  • ⚠️ Rotted frames
  • ⚠️ Foggy double-pane
  • ⚠️ Drafts

Our Verdict: Cosmetic/efficiency issue. Negotiate credit

🏠 Found Issues? Know Your Options

If you need to walk away and find a different home, make sure you're pre-approved and ready to make another offer.

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✅ What's NOT a Deal Breaker (Negotiate Instead)

These issues are common and fixable. Use them to negotiate, not walk away:

  • ✅ Cosmetic issues (paint, carpet, fixtures)
  • ✅ Minor roof repairs (few missing shingles)
  • ✅ Old but functional HVAC
  • ✅ Radon (easily mitigated)
  • ✅ Minor plumbing issues (leaky faucets)
  • ✅ Old windows (efficiency issue, not safety)
  • ✅ Outdated electrical panel (if safe)
  • ✅ Minor grading issues
  • ✅ Cosmetic cracks (hairline, <1/8 inch)
  • ✅ Dated kitchen/bathrooms

Your Options After a Bad Inspection

1. Negotiate Repairs

Ask the seller to fix the issues before closing. Get contractor estimates to support your request.

2. Negotiate Price Reduction

Ask for a lower price to cover repair costs. You fix it yourself after closing.

3. Request Closing Credit

Seller gives you cash at closing to cover repairs. Keeps the sale price the same.

4. Walk Away

Use your inspection contingency to cancel the contract and get your earnest money back.

Frequently Asked Questions

What are the biggest home inspection red flags?

The biggest red flags are: foundation problems ($10K-$100K+), major roof damage ($8K-$30K), extensive mold ($2K-$30K+), termite damage ($3K-$50K+), and faulty electrical ($5K-$20K). These are expensive and may indicate deeper problems.

Should I walk away from a house with foundation issues?

Usually yes, unless the seller agrees to fix it completely or offers a massive price reduction ($50K-$100K+). Foundation repairs are expensive, disruptive, and may not fully solve the problem. Get a structural engineer's opinion.

Can I back out after a bad home inspection?

Yes, if you have an inspection contingency. You can back out and get your earnest money back if the inspection reveals issues you're not comfortable with. This is exactly what the contingency is for.

🏠 Ready to Find the Right Home?

Get pre-approved so you're ready to make an offer when you find a home that passes inspection.

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MT

Michael Thompson

Home Inspection Expert • 15+ Years Experience

Michael has inspected over 3,000 homes and knows exactly which issues are deal breakers and which are just negotiating points.