Best Basement Waterproofing Contractors near East Gwillimbury, ON

These contractors serve East Gwillimbury from nearby bases in towns including Newmarket, Bradford and Keswick.

10 contractors listed · 1 open 24/7 · 7 open weekends · 7 rated 4.5+ · 1 shows a licence

Data verified October 18, 2026

Canadian Concrete Leveling

Canadian Concrete Leveling

4.8 105 reviews
“We are very pleased with our walkway which is now level like new.”
Free consultationLocally owned
Newmarket, ON · 10 km from East Gwillimbury
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Pro-Leak Solutions

Pro-Leak Solutions

5.0 98 reviews
“In addition to that, he also came by my home to verify his diagnoses, and took the time to review the solution that was provided by another waterproofing company that addresses exterior block foundation leaks.”
Free estimatesInsuredServes Halton Region, Peel Region +2Since 2010
Schomberg, ON · 26 km from East Gwillimbury
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CCL Landscape Design Ltd.

CCL Landscape Design Ltd.

4.7 20 reviews
“Our beautiful walkway was completed on time and the attention to detail was wonderful.”
30+ yearsServes Simcoe CountyFree consultation
Innisfil, ON · 23 km from East Gwillimbury
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The Basement Guy Waterproofing

The Basement Guy Waterproofing

Free estimates20-yr warrantyServes Newmarket, Keswick, AuroraOpen 24 hours30+ years
Keswick, ON · 14 km from East Gwillimbury
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Wetfix Basement Waterproofing

Wetfix Basement Waterproofing

5.0 5 reviews
“Turned out it was plugged into a non-working electrical circuit, and was full of water (from the spring thaw and rainfall).”
Free consultation30+ years
Aurora, ON · 15 km from East Gwillimbury
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Fleming Heritage Restoration

Fleming Heritage Restoration

5.0 26 reviews
“Did an outside wall tuck and pointing in 2019 and they were awesome.”
Since 2013Serves Durham Region, East GTA +7Family-owned
14 km from East Gwillimbury
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The 10 contractors listed for East Gwillimbury, ON work on wet basements, foundations and crawl spaces. Warranty claims, free inspection offers and hours come from each company's own website. Ask each one how the proposed repair holds up through frost, because that is where local systems fail.

Area overview: East Gwillimbury, ON

8 of the 10 contractors on this page have a rating, from 4.4 to 5.0 across 864 reviews; 3 have 50 or more reviews and 7 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (93%), responsiveness (88%) and quality (83%). 1 is open around the clock and 7 are open on weekends. 1 shows a licence on its website. 5 have ten or more years of experience, the longest 30 years. 1 offers emergency call-outs; 8 give free estimates; 2 are family- or locally-owned and 1 lists coupons or special offers. We have a website on file for all 10 of the contractors on this page; all 10 publish a contact page; 9 list a public email and 1 takes bookings online. We count these figures across the contractors on this page; hours and prices change, so confirm the details with the contractor before you book.

How many opinions should I get for a damp problem?

There are 10 listings for East Gwillimbury. Get more than one assessment before committing, because diagnoses here differ more than prices do, and one crew's interior system is another crew's regrading and downspout job. Compare what each one says is causing the water rather than the number at the bottom.

Family Renovations

Family Renovations

4.4 9 reviews
“Did a great job in the kitchen, and found great quality hardwood for us!”
Free consultation
26 km from East Gwillimbury
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Concrete Bradford

Concrete Bradford

Free estimatesServes Bradford, York Region
Bradford, ON · 12 km from East Gwillimbury
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DNR Group

DNR Group

Barrie, ON · 34 km from East Gwillimbury
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MT Drains & Plumbing LTD

MT Drains & Plumbing LTD

4.9 128 reviews
“I was impressed with their honesty and professionalism, and would highly recommend this company to anyone in need of plumbing services.”
Coupons & offersLifetime warranty24/7 emergency serviceSince 1991Serves Greater Toronto Area, Durham Region +2Free consultation
Richmond Hill, ON · 30 km from East Gwillimbury
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HomeWaterproofing ContractorsOntarioEast Gwillimbury, ON

Why these companies made our list

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