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Compare verified foundation contractors for leaking or structural basement wall cracks. Get free quotes, check licenses, and hire with confidence.
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Top Wall Crack Repair Pros in Metro Detroit
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Foundation wall crack repair in Metro Detroit: what to expect
Cracks in basement walls are common in Metro Detroit. Many thin vertical cracks in poured walls come from concrete shrinkage and mainly cause leaks. Horizontal cracks, stair-step cracks in block, and cracks that widen or shift out of plane can signal pressure or settlement and need a closer look.
Leaking cracks in poured walls are usually sealed by injecting polyurethane or epoxy from the inside. Structural cracks may call for carbon fiber straps, wall anchors or other repairs, and block walls are handled differently than poured walls.
If you are unsure whether a crack is structural, a foundation inspection is the right first step.
What a proper job includes
- Crack mapping with width, length and direction noted
- An opinion on whether the crack is structural or only leaking
- Injection with polyurethane or epoxy for poured walls
- Reinforcement where the crack is structural
- Surface cleanup and sealing
- Written warranty against leaks for the treated crack
- Advice on gutters, downspouts and grading to reduce pressure on the wall
What drives the price
- Number and length of cracks
- Wall type: poured concrete or block
- Leak repair only, or structural reinforcement
- Access around finished walls or mechanicals
- Exterior excavation if the crack is sealed from outside
- Permit and engineering when reinforcement is needed
Rebuild Detroit does not publish price ranges. Get written quotes for the same scope and compare.
Permits and licensing in Michigan
Sealing a non-structural leaking crack is often an ordinary repair. Reinforcing a structural crack alters structural parts, so expect a building permit from the local building department (BSEED in Detroit), and possibly an engineer's design.
Basement waterproofing is a Michigan Maintenance and Alteration Contractor trade, and structural work falls under the Residential Builder license. Check the license on the LARA lookup.
Verify: LARA license lookup MISS DIG 811 for homeowners Detroit BSEED How We Vet
How to compare quotes
- Ask whether each crack is structural and how they decided.
- Compare materials: polyurethane, epoxy or reinforcement.
- Get quotes that list each crack and its treatment.
- Check the license on the LARA lookup and ask for proof of insurance.
- Read the warranty terms for the treated cracks.
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Wall Crack Repair FAQ
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