The Parging Company
“Jordan and his team did a great job on the parging for our new garage.”
Best Basement Waterproofing Contractors in Gatineau, QC
15 contractors listed · 4 in Gatineau · 4 open 24/7 · 8 open weekends · 12 rated 4.5+
Data verified October 18, 2026
Entreprises Nolet
“We did business with Entreprises Nolet to redo our French drains and install a polyurea membrane as well as a polyurethane one.”
Bellai Frères Construction Ltée
“Very welcoming company , provides you with all your industrial , commercial concrete forming needs .”
Fondations M. Constant
Foundation Repair Action Restoration
“Call and the owner Pat answered and help us out as soon as he can .”
Mr Foundation Inc.
“The workmanship is excellent, you can't really tell there was ever a crack there and cleaned up the worksite once the job was done.”
The 15 contractors listed for Gatineau, QC 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: Gatineau, QC
4 of the 15 contractors we list are based in Gatineau; the other 11 serve Gatineau from towns including Ottawa, ON (7 km), Gloucester, ON (6 km) and Cantley (10 km). The contractors on this page are rated from 3.8 to 5.0 across 509 reviews; 4 have 50 or more reviews and 12 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (90%), quality (81%) and responsiveness (79%). The topics that come up most in reviews of the contractors on this page are "price", "estimates" and "communication". 4 are open around the clock; 8 are open on Saturdays and 7 on Sundays. The services the contractors on this page list most often on their websites are basement waterproofing (2), foundation crack repair (2), foundation repairs (2), foundation restoration (2) and structural repairs (2). 6 show a licence on their websites. 11 have ten or more years of experience, the longest 30 years. 4 offer emergency call-outs; 6 give free estimates and 2 are family- or locally-owned. 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 Gatineau. 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.
Xpert Excavation
“Amazing work, he was a huge help and was able to give solid, reliable advice.”
Ottawa Foundation Repair
“He did such a great job the first time a few years back that I didn't hesitate to hire him again for the same issue at the new house.”
Bol-Dan Foundation & Masonry Inc
“I'd like to thank Gaetan and his team (Serge & Frank) for the excellent job they did to fix the leak in my foundation.”
The Foundation Experts Inc.
“From the initial visit at our property, Alex was able to provide us with an evidence-based quote and answered all the various questions we had about the products, warranty, etc.”
Just Foundations Ottawa
“I got progress pictures along the way and when an emergency came up, he was sable to correct it same day.”
Foundation Repair Ottawa
Above Water Inc.
“Finally our 70 year old block foundation is bone dry and structurally restored.”
Drainspec Inc
“Aurel is a great plumber, highly recommended!”
Action Foundation Repairs
“The owner and his team will bring an extensive experience and an exceptional expertise to your project - I would highly recommend them!”
Why these companies made our list
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