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Delta Waterproofing was great. Overall i would give them 5 stars. Arman was great in assisting me. They have such fast responses and are great at answering all questions you have throughout the day. Would recommend this company and will refer to anyone who needs their services!


We had a problem of foundation crack 3 years ago. One of the companies did the job with the “warranty”, but it appeared a year ago with mold all over my basement. They refused to come…. So, we chose “Delta waterproofing”. They looked really professional and trustworthy. And the result was really excellent. I do not have any problems at all. They even gave me the warranty certificate for 10 years! Those guys are really the best. I highly recommend.


I'd like to thank Arman and everyone at Delta Waterproofing. Thanks to their knowledge, professionalism, and quick response, we managed to prevent a minor crack in our foundation from leading to a basement flood. I I recommend them highly!


“I can’t speak highly enough of Delta Waterproofing and the service Arman provides. He came in first thing in the morning for estimates, and was back within a week to finish the work. I had a great experience!”


Delta Waterproofing’s personnel were very professional, very conscientious. They did an excellent job for us. I would recommend them to any owner. It was a pleasure to work with Armand and his staff. Thank’s a lot guys.

Julie, Montreal

Excellent work! Guys are very professional and courteous. We had a drainage system installed. No hesitation to recommend. Don’t shop around, go directly to them.

James, Toronto

These guys are amazing! They knew exactly what they needed to do to fix our leaking basement. Quick and easy process that we would recommend them to anyone in a heart beat. Professional and cleaned up after themselves- something that most tradies out there lack. Thank you

Dany, Ottawa

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Our service area

Up to 100 km from Montreal, Ottawa and Toronto


  • Laval
  • Mirabel
  • Saint Jerome
  • Terrebonne
  • Vaudreuil-Dorion
  • Longueuil


  • Lanark
  • Leeds & Grenvile
  • Stormont, Dundas & Glengarry
  • Prescott & Russell