How Much Does It Cost to Fix a Foundation Crack?
Foundation cracks range from harmless to serious. Here's what repairs cost and how to tell which type you have.
General information, not professional advice — see terms of use.
Foundation crack repair costs vary enormously based on severity — from a few hundred dollars for a minor sealing job to tens of thousands for major structural repair.
Typical cost ranges:
- Minor hairline crack sealing (cosmetic): $250–$800
- Injecting epoxy or polyurethane into a crack: $500–$1,500 per crack
- Sealing and waterproofing a leaking crack: $2,000–$7,000
- Major structural repair (piers, underpinning, wall stabilization): $10,000–$40,000+
How to tell how serious a crack is:
Usually NOT serious (cosmetic):
- Thin, hairline cracks (less than 1/8 inch)
- Vertical or diagonal cracks from normal concrete curing and settling
- Cracks that aren't growing or leaking
Potentially SERIOUS (structural — get it inspected):
- Horizontal cracks (often indicate pressure from soil or water pushing on the wall)
- Cracks wider than 1/4 inch
- Stair-step cracks in block or brick foundations
- Cracks that are widening over time
- Cracks accompanied by bowing walls, sticking doors/windows, or uneven floors
- Any crack actively leaking water
What affects cost:
- The cause (simple settling vs. soil pressure, poor drainage, or plumbing leaks)
- Crack length, width, and location
- Whether waterproofing or drainage correction is needed
- Accessibility
Because foundation issues can worsen and affect your home's structural integrity and value, it's worth getting an inspection from a structural engineer (typically $400–$700) for anything beyond a clearly cosmetic hairline crack.
Follow-up questions
Are foundation cracks normal in a house?
Small, thin hairline cracks are very common and usually result from normal concrete curing and minor settling — these are typically cosmetic. However, horizontal cracks, cracks wider than 1/4 inch, stair-step cracks, and any crack that's growing or leaking can indicate structural problems and should be evaluated by a professional.
When should you worry about a foundation crack?
Be concerned about horizontal cracks, cracks wider than a quarter inch, stair-step cracks in brick or block, cracks that are actively widening, and any crack accompanied by bowing walls, sticking doors or windows, or sloping floors. These can signal serious structural issues. Leaking cracks also need prompt attention to prevent water damage.
Who do you call to inspect a foundation crack?
For peace of mind on a potentially serious crack, hire a licensed structural engineer for an independent inspection (typically $400–$700) — they don't sell repairs, so their assessment is unbiased. Foundation repair contractors also offer inspections, often free, but get multiple opinions since they're selling the work.
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