Waterproofing Costs in Ottawa: Wall by Wall
Each page below gives the published price range for one waterproofing job, where at least two independent Ontario contractor price pages agree, and an estimator you fill in with your own walls, cracks or wells. Where the published prices do not support a range, the page says so instead of guessing.
published Ontario contractor pricing, 2025–26 · reviewed 2026-10-01 · How we set these ranges
- Exterior waterproofing$100 to $350 per linear foot of wall
- Interior drain and sump system$70 to $150 per linear foot
- Foundation crack injection$500 to $1,500 per crack
- Sump pump$500 to $1,200 to replace a pump in an existing pit
- Backwater valve$1,500 to $4,500 for an interior retrofit
- Window well$1,600 to $3,800 per well, with drainage
- Weeping tilePriced inside exterior or interior waterproofing
Every figure on these pages is a published estimate, not a quote. The City of Ottawa's protective plumbing rebate is shown separately on the sump pump and backwater valve pages and is never taken off a price.