Free tool
Basement Waterproofing Cost Calculator (Ottawa)
Estimate your project from current 2026 Ottawa-market price ranges and see the City of Ottawa rebates you may qualify for. It's an estimate; the exact price needs a free inspection.
A typical Ottawa home is roughly 120–180 ft. Used for drainage & membrane estimates.
Determines City of Ottawa rebate eligibility.
Estimate only, this is not a quote. Figures are based on typical 2026 Ottawa market ranges and will vary with your home's size, foundation type, water problem, site access and the contractor you choose. Rebates depend on City of Ottawa eligibility. Only a free on-site inspection gives a firm, fixed price.
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How we estimate (our sources)
This calculator uses published 2026 Ottawa/Ontario price ranges and the City of Ottawa's official rebate amounts, not made-up numbers. Your project may differ; these are typical market ranges, which is exactly why a free inspection gives you a firm, fixed quote.
- Crack repair (injection): about $500–$1,500 per crack
- Interior weeping tile / drainage: about $70–$160 per linear foot
- Exterior waterproofing membrane: about $100–$250 per linear foot
- Sump pump with battery backup: about $1,200–$4,000 installed
- Backwater valve: about $1,800–$4,500 installed
Cost ranges: LookupCost, Basement Waterproofing Cost in Ottawa (2026) and current Ontario contractor cost guides. Rebate amounts: City of Ottawa, Residential Protective Plumbing Program. Rebates apply to sump pumps and backwater valves only, are subject to eligibility and require a building permit before installation.
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A free, no-obligation inspection turns this estimate into a written diagnosis and a fixed quote.
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