ExcaFix — French drain
Réparation intérieure d'une fissure de fondation par injection au Québec
Service • Written terms

Foundation crack repair

A foundation crack may let water through and can indicate movement that needs assessment. We select epoxy or polyurethane injection based on stability, moisture and access.

Epoxy injection (structural repair)

Epoxy forms a rigid material that may suit certain stable cracks in concrete. The crack's movement, moisture and structural significance must be assessed first.

Polyurethane injection (waterproofing)

Polyurethane reacts and expands to form a flexible seal. It may suit some damp cracks when the diagnosis and access support this method.

Repair from the inside

When the crack and access allow it, injection ports are installed before surface sealing and pressure injection. Duration depends on preparation and diagnosis.

Repair from the outside

When the cause is a failed drain or membrane, we excavate to treat the problem at its source: crack repair, new waterproofing membrane, and drain repair or replacement as needed.

Indicative pricing

Simple crack by injectionbased on diagnosis, access and method
Medium crack$800 – $1,500
Exterior repair with excavation$2,500 – $6,000

Indicative 2026 Quebec ranges. Pricing and the follow-up timeframe are confirmed after your request is assessed.

Frequently asked questions

Duration depends on size, accessibility, moisture and required preparation. It is confirmed after assessment.

Understand the problem before digging.

Describe the visible signs and receive initial guidance. The on-site quote then confirms access, method and price.

Personal follow-up after your requestWritten terms based on the workRBQ 5681-8941-01Greater Montreal South and North Shores

Tell us what is happening around your foundation.

A few details are enough to identify the right service. Exact measurements are not required at this stage.

  1. 1Your situation
  2. 2Our callback
  3. 3Site visit if needed
RBQ licensed contractor 5681-8941-01
5 useful fieldsFollow-up during business hours

Get a clear quote

No obligation. Your information remains confidential.

Tell us what is happening around your foundation.

A few details are enough to identify the right service. Exact measurements are not required at this stage.

  1. 1Your situation
  2. 2Our callback
  3. 3Site visit if needed
RBQ licensed contractor 5681-8941-01
5 useful fieldsFollow-up during business hours

Get a clear quote

No obligation. Your information remains confidential.