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Commercial & Residential
Commercial & Residential Waterproofing & Fixing Services
Water doesn't wait for a good time to show up in your basement. We handle basement waterproofing for Toronto homeowners and businesses that have relied on us for years, so leaks, damp walls, and flooding stay someone else's problem.
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Commercial & Residential
Commercial & Residential Waterproofing & Fixing Services
From a single crack to a full basement overhaul, our crew shows up, figures out what's actually going wrong, and fixes it right the first time.
Quality
materials
We don’t cut corners on what goes into your walls and floors. The materials we use are built to hold up for the long haul, not just pass inspection.
Professional
workers
Every job is handled by trained, experienced crews who’ve seen just about every kind of basement problem this region can throw at them.
Free
estimates
No pressure, no obligation. We’ll take a look, tell you what’s going on, and give you a straight number before any work starts.
WaterProofing
%
Satisfied customers
About J.M WaterProofing
Experienced & quality waterproofing services providers
We’ve spent years fixing wet basements across the Greater Toronto Area, and if there’s one thing we’ve learned, it’s that no two houses leak the same way. That’s why we don’t show up with a one-size-fits-all fix. We look at your foundation, your soil, and your drainage, then build a plan that actually solves the problem instead of just patching over it.
Homeowners come to us for basement waterproofing Toronto trusts, and the same goes for families in Richmond Hill, Ajax, Aurora, and Newmarket. Different neighborhoods, different soil, same commitment to getting it right.

Innovative work
We keep up with newer waterproofing methods and materials so you’re not stuck with outdated fixes that only last a season or two.

Innovative work
Every project gets a proper assessment first. We’d rather spend an extra 20 minutes figuring out the real cause than guess and hope it holds.
Our services
We provide quality waterproofing services
Every basement problem is a little different, which is why we offer more than one way to fix it. Here’s where we usually start:
Interior Waterproofing Toronto
For basements where water’s already getting in, we manage it from the inside with drainage systems and sump pumps that keep things dry for good.
Exterior foundation waterproofing Burlington
We dig down to the foundation and seal it from the outside, stopping water before it ever gets close to your walls.
Crawl Space Waterproofing Toronto
Old or damaged weeping tiles are behind more basement leaks than people realize. We install and repair these systems so water actually drains the way it’s supposed to.
Why choose us
Here are a few reasons to choose our company
We know there are plenty of waterproofing companies out there. Here’s what actually sets us apart:

Quality
materials

Fully
insured

Mission
statement

Expert
engineers
Latest Projects
Explore our latest projects for your inspiration





Explore our latest projects for inspiration
Hundreds of customers trust our company, from downtown Toronto basements to homes out in Richmond Hill, Ajax, Aurora, and Newmarket.
- We've got expert & certified staff
- We only provide quality services
- We offer you free estimates
testimonials
What they’re talking about us
Got a few quotes before going with J.M WaterProofing and I'm glad I did. They were upfront about what our foundation actually needed instead of trying to upsell us on extra work. The basement's been bone dry through two rainy seasons now.
Priya K. NewmarketOur sump pump was running nonstop and we had no idea why. Turned out the exterior drainage was basically shot. The crew was easy to deal with, cleaned up the yard nicely after, and answered every question we had along the way. Would recommend them without hesitation.
Sarah M. Richmond Hill
"We'd been dealing with a damp basement smell for almost a year and kept putting off doing anything about it. J.M WaterProofing came out, explained exactly what was going on with our weeping tile, and had it fixed within two days. Wish we'd called sooner, honestly."
David T Toronto