GJ Macrae Foundation Repair
“From the quoting process, careful planning and execution, their work was flawless, expertly explained and done to our (and our neighbour's) satisfaction”
Best Basement Waterproofing Contractors in Oakville, ON
15 contractors listed · 6 in Oakville · 7 open 24/7 · 13 open weekends · all 15 rated 4.5+
Data verified October 18, 2026
Aqua Dry Waterproofing Technologies
“I would highly recommend Aqua Dry Waterproofing Technologies to anyone with a leak in their basement.”
Aquaguard Injection & Waterproofing
“Luc has done a great job fixing the crack in my basement.”
Precise Plumbing & Drain Services
“Very responsive, the job was done quickly and neatly, with Covid protocols.”
Drychek Waterproofing
“Two weeks later the job was done, area cleaned and now I have a finished basement to use!”
Remove & Restore Inc. Oakville
The 15 contractors listed for Oakville, 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: Oakville, ON
6 of the 15 contractors we list are based in Oakville; the other 9 serve Oakville from Mississauga (17 km) and Etobicoke (29 km). The contractors on this page are rated from 4.6 to 5.0 across 1,571 reviews; 11 have 50 or more reviews. When customers rate these contractors on specific qualities, they most often praise professionalism (90%), quality (81%) and responsiveness (81%). The topics that come up most in reviews of the contractors on this page are "price", "estimates" and "cleanliness". 7 are open around the clock; 13 are open on Saturdays and 11 on Sundays. The services the contractors on this page list most often on their websites are foundation repair (3), basement waterproofing (2) and exterior basement waterproofing (2). 5 show a licence on their websites. 4 have ten or more years of experience, the longest 27 years. 7 offer emergency call-outs; 12 give free estimates; 2 are family- or locally-owned and 3 list coupons or special offers. We have a website on file for all 15 of the contractors on this page; all 15 publish a contact page; 13 list a public email and 1 takes bookings online. We count these figures across the contractors on this page; distances are straight-line, and 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 15 listings for Oakville. 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.
Water Pro:
“I wanted to make a alteration to the outside drain and they came the next day and fixed it charging me only for the materials despite it taking hours to complete.”
Drain Express
“He gave me a quote in advance and the final fee was the same including a small discount.”
Rooterworx
“Just wanted to say that Rooterworx is by far the best service I've ever had with any trade!”
Aquamen Waterproofing & Underpinning
“I am happy that I choose this company for waterproofing of my house, guys dod great job, very professionally.”
Waterproofing PD
“We came home today to the work area being clean and everything set up nicely!”
Pryde Group Corp
“Andrii and his Pryde team were on site in a couple of hours after posting on HomeStars.”
Galaxy Plumbing Inc.
“I had the pleasure of dealing with Rob Fraschini, and he was a amazing to work with.”
Prime Waterproofing
“Prime Waterproofing did amazing work at my house,team work hard,Nick very good with communication,all done how he said,thanks Prime”
Draincom Basement Waterproofing
“He was kind enough to even inspect the discharge line with a camera after the job was completed and added an extension for the line to protect it from freezing.”
Why these companies made our list
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