What affects the price
- Crack severityHairline (under 1/16"): epoxy injection, $450–$650. Medium (1/16"–1/4"): polyurethane injection, $650–$950. Major (1/4"+): carbon-fiber + epoxy, $1,200–$2,800.
- Bowing wallsIf the wall is bowing inward more than 2", it's beyond crack repair — you need carbon-fiber straps every 4-6 ft, $4,500–$9,500 for a typical wall.
- Structural engineerRequired for cracks wider than 1/4" or any horizontal crack. $350-650. Their letter is what your insurer + future buyers will require.
- Waterproofing add-onJust sealing the crack stops air/water; doesn't fix structural issues. Combine with exterior excavation + waterproof membrane for full repair: +$2,500–$4,500.
What's included
- Crack inspection + width measurement
- Surface prep (clean + bonded)
- Injection ports installed every 6"
- Epoxy or polyurethane injection
- Carbon-fiber straps (if needed)
- Final patch + paint to match
When to call
Vertical hairline cracks under 1/16" — usually cosmetic, can wait. Cracks wider than 1/16" or any horizontal crack — call this week. Bowing walls, doors out of square, basement floor cracks meeting wall cracks — call immediately + get structural engineer.
Related questions
How can I tell if a foundation crack is structural?
Vertical = usually cosmetic. Horizontal = structural (wall is being pushed in). Stair-step (in block walls) = structural settlement. Diagonal at corner = structural. Any crack wider than your finger = call a structural engineer.
Will my homeowners insurance cover foundation repair?
Almost never for slow-developing settlement cracks. Sometimes for sudden events (sinkhole, vehicle impact). Always for damage from a covered peril (e.g. burst pipe under slab). Document everything before doing repairs.
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