Harmony Basements
“Harmony Basements did our basement nearly 7 years ago and everything is still perfect.”
Best Basement Waterproofing Contractors in Woodbridge, ON
24 contractors listed · 6 in Woodbridge · 10 open 24/7 · 20 open weekends · all 24 rated 4.5+
Data verified October 18, 2026
Concrete One Ltd.
“They cleaned up well after the job and we were always informed of when things were being done and given accurate information on how long it would take.”
New Life Concrete Sealing
“I was pleased with the work when it was done, they were professional and completed the project in a timely manner.”
United Waterproofers Canada
“After carrying out an inspection and establishing the specs for the concrete repairs and waterproofing that needed to be done, we were pleased to see the results.”
Titeseal Waterproofing
“I would highly recommend this company, friendly and excellent service.”
Across Canada Construction Ltd.
The 24 contractors listed for Woodbridge, 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: Woodbridge, ON
6 of the 24 contractors we list are based in Woodbridge; the other 18 serve Woodbridge from towns including Etobicoke, Mississauga and Brampton. The contractors on this page are rated from 4.5 to 5.0 across 4,863 reviews; 19 have 50 or more reviews. When customers rate these contractors on specific qualities, they most often praise professionalism (93%), quality (83%) and responsiveness (77%). The topics that come up most in reviews of the contractors on this page are "price", "estimates" and "efficient". 10 are open around the clock; 20 are open on Saturdays and 15 on Sundays. The services the contractors on this page list most often on their websites are foundation repair (3), waterproofing (3), backwater valve installation (2), basement waterproofing (2) and camera inspections (2). 9 show a licence on their websites. Domain records put 7 websites of the contractors on this page at ten or more years old; the oldest dates from 1998. 11 offer emergency call-outs; 2 offer financing or payment plans; 17 give free estimates; 3 are family- or locally-owned and 7 list coupons or special offers. 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 24 listings for Woodbridge. 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.
Drain Experts Plumbing
“I will definitely recommend Rob to others and have him back if required.”
Drain 1 Plumbers Inc.
“They came out on a long weekend, worked tirelessly to get the job done quickly, and communicated clearly with us throughout.”
Aquatech Basement Waterproofing Toronto
“We had a quote in our hands within 24 hours which actually included bricking up our old exterior door.”
Water Pro:
“Best price I found for waterproofing and the team was really professional.”
Direct Waterproofing
“The waterproofing team was not only skilled but also respectful of our home.”
Royal Work
“Their transparent pricing and high-quality work make them the ideal choice for any plumbing job🙂 …”
Drain Express
“Overall, I am very pleased with their professionalism, response time and quality of work and would definitely recommend them and use their services again in the future.”
Aquamen Waterproofing & Underpinning
“They were courteous, showed up on time and their prices was very reasonable.”
Waterproofing PD
“Edgar came to my house, thoroughly evaluated the situation, explained the options to me, and patiently answered all of my questions.”
Drainworks Plumbing
“They were fast to respond, gave a clear diagnosis of the issue, and a clear plan of the scope of work to be done.”
Drainrooter Plumbing
“It was an expensive job, but Mike spent 3 or 4 hours on a Sunday and another 4 hours on Wednesday fixing and replacing old pipes some of which were 70 years old.”
Pryde Group Corp
“They did what they said they would do, and within the time frame agreed upon, which was very important to us.”
Water Guard Plumbing
“He explained the process and was supportive to get the this project completed.”
Aquarescue
“The work was performed on time and as promised, and they cleaned up the site before leaving.”
Galaxy Plumbing Inc.
“Nicholas was great at answering all my questions, and did an amazing job with fixing the cracked pipes, and water shut offs that didnt want to work any more.”
Prime Waterproofing
“I recently hired Nick and his team at prime waterproofing to fix a leak in my basement, and I couldn't be happier with the results!”
Danar
“We are thrilled with the expertise, and professionalism of the company.”
Rooter-Man
“Great job removing tree root from sewer drain, updating sewer joint and hot water flush of sewer system.”
Why these companies made our list
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