Interior Waterproofing
Perimeter drainage systems, sump pumps & vapour barriers — installed from inside, with no excavation.
Typically $70–$150 per linear foot
Learn more →Basement Waterproofing & Foundation Repair in Durham Region
Wet basement? Cracked foundation? We fix it right the first time — with a lifetime transferable warranty. Serving Ajax, Pickering, Whitby, Oshawa & Scarborough.
Free on-site inspections & written quotes. Read our FAQ before you call.
Our Waterproofing Services
Every job starts with a free on-site inspection. We find the water source first, then recommend the right fix — never a one-size-fits-all system.
Exterior Waterproofing
Full excavation, waterproof membrane & new drainage tile. The permanent fix for recurring leaks.
Typically $150–$250+ per linear foot
Learn more →Foundation Crack Repair
Epoxy and polyurethane injection that seals cracks from the inside out — permanently.
Typically from $400 · most done in half a day
Learn more →Sump Pump Installation
Primary pumps, battery backups and full pit systems — sized for Durham Region water tables.
Typically $1,500–$4,000 installed
Learn more →Why Durham Region Homeowners Call Us
- Durham Region specialists — we know the clay soil, high water tables, and 1970s–90s foundations common across Ajax, Pickering and Whitby.
- Upfront fixed pricing — the quote is the price. No surprises mid-job, ever.
- Clean job sites — we treat your home like our own, and we leave it that way.
- One call, real accountability — you deal directly with the people doing the work, from inspection to final walkthrough.
Proudly Serving Durham Region
Our crews work across the region every week. See what's specific to your city:
Basement waterproofing in Ajax → (Pickering, Whitby, Oshawa & Scarborough pages coming soon.)
Common Questions
Interior systems typically run $70–$150 per linear foot; exterior waterproofing $150–$250+ per foot. Most Durham Region homes land between $5,000 and $20,000 depending on the method and scope. Every job is different, so we provide a free on-site inspection and an exact fixed written quote — see the full cost breakdown.
It depends on where the water is coming from. Seepage at the wall-floor joint often suits an interior drainage system; recurring leaks through wall cracks or a failed exterior membrane usually call for exterior waterproofing. Our free inspection identifies the source before we recommend anything — more in the FAQ.
Crack injections are usually done in half a day. Interior systems take 1–3 days. Full exterior waterproofing takes 3–7 days including excavation and restoration. See all timelines.
Don't Wait for the Next Heavy Rain
A small leak today is a failed foundation wall tomorrow. Call now for a free inspection — no obligation, no pressure, just an honest assessment of what's happening in your basement.