Foundation Cracks & Wall Leaks

Concrete and block foundations crack as they cure, settle and go through freeze-thaw cycles. Most hairline cracks are cosmetic, but cracks that leak, widen or bow inward need attention.

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Do this right now

Catch or redirect active leaks away from belongings and mechanicals
Mark the ends of cracks with a pencil and date them to track movement
Make sure downspouts discharge well away from the house
Don't seal a bowing wall and ignore it—horizontal cracks can be structural

Warning signs

Water trickling or seeping through a crack
White, chalky deposits (efflorescence) on walls
Horizontal cracks or walls bowing inward
Stair-step cracks in block walls
Cracks wider than a credit card or getting larger

What the waterproofing contractor will do

Leaking cracks are often sealed with polyurethane or epoxy injection. Bowing or shifting walls may need wall anchors, carbon-fiber straps or bracing, and a structural engineer's evaluation.

What affects the price

Single-crack injection is the least expensive repair. Wall stabilization and structural work cost significantly more and may require an engineer's report. Providers set their own prices, so ask for any service-call or inspection fee and an estimate first.

Safety first

Never walk into standing water near outlets, cords, appliances or the electrical panel.
Smell gas or see a furnace or water heater underwater? Leave and call your gas utility or 911.
Sewage in the water? Avoid contact and keep kids and pets away—it's a health hazard.

Foundation Cracks & Wall Leaks help near you

All areas we serve

Water coming in? Call now.

Call (877) 294-8924