4.6Multi-Platform Reputation
12.3/15
Rated on 3 platforms — Google 4.8, Facebook 4.5, Yelp 4.6; ratings agree
Systèmes Sous-sol Québec is a waterproofing company serving Laval, QC, rated 4.8★ across 2,396 reviews. Reviewers repeatedly call out its communication, professionalism, workmanship. It ranks among Canada’s Top 100 Waterproofing Companies with an N49 Trust Score of 82/100. Altogether it carries ~1,280 reviews across 3 platforms.
4.8★ from 1,198 Google reviews
Rated on 3 platforms — Google 4.8, Facebook 4.5, Yelp 4.6; ratings agree
Has a working website
Ranks #1 in Google Maps local results for Laval
~1.2 years on Google Maps (from total-reviews ÷ monthly rate)
Not on Three Best Rated / BBB
~1,280 reviews across 3 platforms
Mentions 7 service areas on home page (e.g. brossard, laval, longueuil, montreal, montréal)
On 2 extra platforms; reachable by website, phone
4 platforms linked: Facebook, Instagram, LinkedIn, YouTube · ~70 Facebook reviews
Get a free, no-obligation quote from one of Waterproofing’s most trusted teams.
By Lenmor LD on Jul 23, 2026 Verified by Google
Frank and team installed a triple safe pump and explained everything very well, how it works and any maintenance to do.
The new setup is amazing with a primary pump, a secondary pump, and a backup pump with battery now with two pipe outputs. Much much better and more secure than our old pump.
They installed and took care of everything from start to finish. They also covered the old pipe exit.
It’s a big job so it took many hours but it’s beautiful once it’s done.
Thank you!
By tristan richard on Jul 12, 2026 Verified by Google
Excellent work by Ghouti on the repair of our French drain. We bought our house last year and were dealing with some humidity issues that appeared to be caused by both a rodent blocking the french drain and an installation issue from years ago.
We contacted Sous-Sol Québec, who had originally installed the system for the previous owner. They had no problem honoring the warranty, even though we weren’t the original customers. Ghouti completed the repair professionally and efficiently, and we’re very satisfied with the service.
By cesar umali on Jul 10, 2026 Verified by Google
Frank and Eric. We're excellent! Quick and efficient. Everything was explained clearly. I'm extremely happy. But I hope I won't need the discharge line In the future, but nowadays it's better to have than not.
By Patrick on Jun 3, 2026 Verified by Google
Simon came by for the initial visit and took the time to clearly explain the situation, the proposed solution, and what the work would involve. He was very patient with us throughout the process and answered all of our questions, which we really appreciated.
From that first visit all the way through the actual job with Cedrick, the foreman, and his crew, the experience was excellent. The team was professional, respectful, and clearly knew what they were doing. The work was done very well, and they kept things organized throughout the process.
We really appreciated the care they took and the quality of the job. I would definitely recommend them to anyone dealing with basement water issues.
By Shamil “SG” Gret on Apr 28, 2026 Verified by Google
I’m very happy with the advice and recommendations Pierre‑Luc provided. He was patient, professional, and thorough, he took his time and answered all of my questions clearly and confidently. He was also very direct and honest, without sugarcoating anything.
He explained that the foundation would require significant work, showed me concrete examples and reviewed each unit to understand the structural impact. Using a rotary laser, he was able to clearly demonstrate that the building had settled.
Overall, I’m extremely satisfied with his service, expertise, and honest guidance. I highly recommend him!
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Systèmes Sous-sol Québec 4.8 out of 5.0 based on 2,396 user reviews.
