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Foundation crack repair

Seal leaking cracks in poured concrete foundation walls, usually from inside and without digging. Serving homes across the GTA.

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Greater Toronto AreaToronto, York, Peel, Durham, Halton. Written quotebefore any work starts. 8 AM – 8 PM, 7 days.A real person answers.
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Foundation crack repairSigns you need it

Is this your problem?

Most poured concrete foundations crack at some point as the concrete shrinks. A crack becomes a problem when water starts coming through it. The usual fix is injection: the crack is filled through the full thickness of the wall from inside, so water can’t find a path through.

  • Water running from a crack after rain or snowmelt
  • A damp stain spreading out from a crack
  • A crack getting longer or wider over time
  • A crack near a corner, window or pipe that leaks

Wide, horizontal or stair-step cracks?. These can be a sign of a structural problem, not just a leak, and may need a structural engineer to look at them. Mention it when you call.

How the job is done3 steps

  1. Inspect the crack

    The crack is checked for width, direction and whether it’s actively leaking.

  2. Inject it

    A flexible polyurethane or rigid epoxy is injected through ports and fills the crack through the wall.

  3. Seal and finish

    The surface is sealed and the ports are removed once the material has cured.

QuestionsFoundation crack repair
Are foundation cracks normal?

Small vertical shrinkage cracks are common in poured concrete. They’re worth fixing when they leak or keep growing.

Polyurethane or epoxy?

Polyurethane foam stays flexible and is the usual choice for leaking cracks. Epoxy is rigid and used when the crack needs to be bonded back together.

What if my foundation is concrete block?

Block walls leak through mortar joints and hollow cores, so injection usually isn’t the fix. Exterior or interior waterproofing is.

Will the crack come back?

A properly injected crack is sealed through the wall. Ask what warranty comes with the repair when you get your written quote.

Request a callbackTakes about a minute

Get your foundation crack repair quote.

Send the form, or call or text a photo to 416-995-6504. We'll go over it with you and book a time for a waterproofing pro to take a look.

Calls answered 8 AM – 8 PM, Monday to Sunday. Forms sent after 8 PM get a call the next morning.

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