5Multi-Platform Reputation
13.6/15
Rated on 3 platforms — Google 4.9, TrustedPros 5.0, Facebook 5.0; ratings agree
DELTA WATERPROOFING is a waterproofing company serving Montreal, QC, rated 4.9★ across 118 reviews. Reviewers repeatedly call out its professionalism, workmanship, punctuality. It ranks among Canada’s Top 100 Waterproofing Companies with an N49 Trust Score of 64/100. Altogether it carries ~125 reviews across 3 platforms.
4.9★ from 118 Google reviews
Rated on 3 platforms — Google 4.9, TrustedPros 5.0, Facebook 5.0; ratings agree
Has a working website
Ranks #1 in Google Maps local results for Montreal
~9.8 years on Google Maps (from total-reviews ÷ monthly rate)
Not on Three Best Rated / BBB
~125 reviews across 3 platforms
Single Google Business listing — no multi-area signals
On 2 extra platforms; reachable by website, phone
1 platforms linked: Facebook · ~6 Facebook reviews
Get a free, no-obligation quote from one of Waterproofing’s most trusted teams.
By Andy Thanh on Jul 27, 2026 Verified by Google
Armand, Ann and their team are amazing! Great communication and excellent work! Highly recommended!
By Stephan Gordo on Jun 26, 2026 Verified by Google
Armand and his amazing team was able to water proof my upstairs balcony they are very professional and knowledgeable.
By Rodriguez Machita on Oct 1, 2025 Verified by Google
Arman and his team did a fabulous job. A well known company proposed to fix the crack in my foundation by repairing from inside the house. Delta repaired my foundation from the outside and even added rigid insulation.
The work was completed in a few days.
In summary,
-Water infiltration through the foundation fixed
-No inconvenient construction inside the house
-Extra rigid insulation adds extra warmth and protection
By Alan B on Jun 1, 2025 Verified by Google
Delta Waterproofing truly saved my building! My triplex in the Plateau was sinking and unstable, but their team stabilized the foundation professionally and efficiently. I’m extremely grateful for their work. Honest, reliable, and skilled—highly recommended!
By Karin Leitner on Nov 13, 2022 Verified by Google
I had an unusual situation were a window well did not have proper drainage and could not be connected to the French drain. Hence I had two water infiltration insurance claims. After discussing this with Arman, he quickly came up with a solution and discussed it with me step by step. The quote was very reasonable and would be done before an impending major rainfall. As I could not be home on the second day of the job I was constantly provided by pictures to show me what was being done. The project was completed in a timely manner and the site was left in an impeccable state. After the abundant rainfall the basement was dry. I don’t have to think about this anymore. Thanks to Arman and his team for finding a solution and giving me peace of mind - priceless!
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DELTA WATERPROOFING 4.9 out of 5.0 based on 118 user reviews.