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Montreal, QC

Foundation Cracks in Montreal, Quebec

Need foundation crack repair work in Montreal? Tell us about your project and LokalMatch will help you find local foundation contractors that match what you need.

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Foundation crack repair services in Montreal

Montreal foundation contractors

We’re still building our network of foundation contractors in Montreal. Send your request anyway — we’ll let you know honestly if we can’t find a match.

Results are ordered by how well they match your service and area — not by who pays. How we rank prosHow we verify pros

What to know about Foundation cracks

Foundation cracks are among the most common things homeowners find in a basement, and among the most misunderstood. Poured concrete loses a little volume as it cures, so most foundations develop a few thin cracks in their first years, and many never cause more trouble than a damp line after a heavy rain. Other cracks are a sign that the soil or the structure is moving, or they give water and soil gases a direct way into the house.

Read our full guide to Foundation cracks

What changes in Montreal

We list 19 areas inside Montreal on their own pages, because a service area is drawn by each pro and does not always reach the whole city. For foundation crack repair, the part of town matters as much as the city.

Montreal is the principal city of a wider area we list under the name Greater Montreal, which takes in 63 other places. A pro's service area might be Montreal on its own or the whole of it — we match on the one they gave us.

Montreal publishes its own building-permit page, and it is linked below beside the rules that apply in Quebec. Whether foundation crack repair needs a permit is answered there, not in a quote.

The rules we can source for this work in Quebec cover general contracting and renovation. They are set out below with the page each one came from — the regulator's words, not ours.

Montreal is in the Ontario and Quebec zone our seasonal checklists are written for, and this work appears in Spring on the maintenance calendar. Those notes are about heavy snow, freeze–thaw cycles and ice dams.

Foundation crack repair costs in Montreal

Prices depend on the details of your project. We only publish price ranges when they’re backed by real LokalMatch quote data or reliable sources. Until then, here’s what usually changes the price:

  • Interior or exterior approach
  • Length of foundation wall to excavate or treat
  • Depth, soil conditions and access for equipment
  • Crack repair, underpinning or other structural work
  • Weeping tile, sump pumps and backwater valves
  • Restoring landscaping, driveways or finished basements
  • Testing and safe removal of mould or asbestos, where needed

How to choose foundation contractors in Montreal

  • Choose a contractor who finds the source of the water before recommending a fix, whether that's grading, eavestroughs, cracks or drainage.
  • Ask them to explain the difference between interior and exterior waterproofing for your home, and why they recommend one.
  • For foundation cracks that are wide, growing or uneven, ask whether a structural engineer should assess them first.
  • For mould, asbestos or radon, hire professionals qualified for that specific work, and don't disturb suspect materials yourself.
  • Get a written quote that lists excavation, membranes, weeping tile, sump pumps and restoration of landscaping or finishes.

Questions to ask foundation contractors before you hire

  • Where do you think the water is coming from, and how did you confirm it?
  • Do you recommend interior or exterior waterproofing for my home, and why?
  • Should a structural engineer look at these cracks or this wall?
  • Does this work need a permit from my municipality?
  • Is your warranty transferable if I sell the house, and what does it cover?
  • How will you restore the landscaping, driveway or basement finishes afterwards?
  • If you find mould or asbestos, how will it be handled and by whom?

Foundation crack repair permits in Montreal

Some foundation crack repair work needs a permit or has to meet local bylaws. Rules vary by municipality, so ask your pro whether a permit is needed and who will apply for it — and check with your city or town if you’re unsure.

Published by Montreal

Licensing in Quebec

Renovation permits and contractor licences in Quebec

Plan your project

Seasonal maintenance checklists

Guides about foundation crack repair

Foundation Cracks near Montreal

Common foundation crack repair questions

Is LokalMatch free for homeowners?

Yes. You never pay LokalMatch to request quotes or talk to pros. Professionals pay a fee to connect with homeowners whose projects fit their business.

How many pros will contact me?

We introduce you to a small number of relevant pros — usually no more than three — so you’re not flooded with calls. If fewer pros are available in your area, we’ll tell you instead of promising quotes we can’t deliver.

Do I have to hire someone?

No. Requesting quotes doesn’t commit you to anything. Compare your options and hire only if someone is the right fit.

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