Cost of Basement Waterproofing in Montreal, QC
Interior or exterior waterproofing of basement foundation including weeping tile, membrane, and sump pump
Prices are estimates for Montreal, QC as of 2026. Actual costs vary based on project specifics.
What Affects Basement Waterproofing Cost in Montreal?
Montreal is in the Greater Montreal region of QC. Local costs are 5% below the Canadian national average, driven by local labour rates, material availability, and demand for skilled trades.
Timeline & Planning
Typical Timeline
3-10 days
Permits
A building permit is typically required in Montreal. Check with your local building department.
Best Time to Book
Best assessed in spring when water table is highest
Compare Basement Waterproofing Costs Across Cities
| City | Low | Average | High | vs Montreal |
|---|---|---|---|---|
| Montreal, QC | $76 | $143 | $285 | — |
| Kitchener, ON | $76 | $143 | $285 | 0% |
| Barrie, ON | $76 | $143 | $285 | 0% |
| Guelph, ON | $77 | $144 | $288 | +1% |
| Kingston, ON | $75 | $141 | $282 | -1% |
| Laval, QC | $74 | $138 | $276 | -3% |
Frequently Asked Questions
How much does basement waterproofing cost in Montreal?
In Montreal, basement waterproofing typically costs between $76 and $285 per linear foot in 2026. The average homeowner pays around $143 per linear foot.
What factors affect basement waterproofing costs in Montreal?
Key factors include: Interior vs exterior approach, Foundation type and condition, Length of perimeter treated, Sump pump installation, Window well drainage, Landscaping restoration (exterior). Montreal prices are below the Canadian average due to local labour and material costs.
Do I need a permit for basement waterproofing in Montreal?
Yes, basement waterproofing typically requires a building permit in Montreal. Contact your local building department for specific requirements and fees.
How do I save money on basement waterproofing in Montreal?
Get at least 3 quotes from licensed contractors. Best assessed in spring when water table is highest Consider bundling multiple projects. Ask about off-season discounts and whether materials can be sourced more affordably.
How do I find a good contractor in Montreal?
Check reviews on HomeStars, Google, and the Better Business Bureau. Verify licenses and insurance. Ask for references from recent local projects. Never pay more than 10-15% upfront.