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Systèmes Sous-sol Québec

1620 boul Saint-Elzéar O
Laval, QC H7L 3N2
Mon-Fri 8:00am-5:00pm
In business since 2005
RBQ License: 8359-3954-01

Systèmes Sous-sol Québec has proudly served the province of Québec since 2007. They have offered basement waterproofing, sump pumps, crawl space repair, foundation repair, basement finishing, and moisture control. Customers can rely on 100% satisfaction guaranteed.

As an authorized Basement Systems contractor, customers can benefit from:

  • Transferable lifetime warranty
  • Concrete and dirt crawl space solutions
  • Free inspections and written estimates
  • Fast installation


  • Basement Waterproofing: most effective solutions for wet basements
  • Crawl Space Repair: offers complete crawl space encapsulation & repair services
  • Sump Pump Installation: these systems are engineered to get water out
  • Foundation Repair: each solution is custom to the home
  • Basement Finishing:finish basement walls, floors, ceilings, and more
  • Moisture Control:mold and moisture removal

Products Installed

  • Sump Pumps
  • CleanSpace® Crawl Space Encapsulation System
  • Encapsulation System
  • Foundation Piers & Wall Anchors
  • Thermal Insulation
  • EverLast™ Basement Wall Panels
  • Perimeter drainage system
  • RainDrop® Gutter Guard
  • French Drain & Drain Tile
  • SaniDry™
  • ThermalDry® Floor Matting

Service Area:

Systèmes Sous-sol Québec offers basement waterproofing and crawl space repair services to Cornwall, Hawkesbury, South Glengarry, Austin, Blainville, Chambly, Cheneville, Dunham, Eastman, Foster, Gore, Howick, Lachine, Lasalle, Maribel, Oka, Richmond, Saint-bruno, Saint-sophie, Vimont, and Wentworth.

Discover the before and after photos to see wet basements transform and foundations fixed! Check out the reviews of satisfied customers! Call today to schedule your free evaluation and estimate!

Basement Waterproofing Crawl Space Repair Foundation Repair Basement Finishing
By Mark R.
"This was our second job, we are considering others...good..."
By Wayne R.
"Presentation and confidence in materials used"
By Anabela M.
"Your crew was very good, dedicated personal. The sales..."
By Sibel U.
"Michel and his team were very polite, very respectful and..."
Eva & Jeff P.
Notre-Dame-de-l'Île-Perrot, QC
In this video, the family discusses their experience with Systèmes Sous-sol Québec and the...
Mark R.
Notre-Dame-De-L'Ile-Perrot , QC
The solution seemed complete and non-invasive to the existing foundation
Geoffrey W.
Sainte-Anne-De-Bellevue, OR
The workers were extremely good and very clean
Systèmes Sous-sol Québec Before & After
  • Cracked Foundation Wall in Cornwall, Ontario
    Cracked Foundation Wall in Cornwall, Ontario

    Cracked Foundation Wall in Cornwall, Ontario

    This client contacted us initially to fix his humidity problem in his crawlspace, but while we were there, we noticed that there was a very large crack in the foundation wall of the crawl space. We fixed this issue by installing the PowerBrace system. It consists of zinc coated beams and components. PowerBraces utilize a joist reinforcement that distributes the load evenly. The crawl space is now stable and sealed.
  • Encapsulation and waterproofing of a crawl space in Godmanchester, Qc
    Encapsulation and waterproofing of a crawl space in Godmanchester, Qc

    Encapsulation and waterproofing of a crawl space in Godmanchester, Qc

    We have transformed this crawl space in Godmanchester, Qc so that it is no longer wet - We encapsulated it all with our CleanSpace vapor barrier membrane and waterproofed everything by installing a SmartSump sump pump system.  At Systèmes Sous-sol Québec, we install only the best sump pump systems available anywhere in the province of Quebec. We have an answer to clogging sump pumps, power failures, torrential rainfall, and much more! We are happy to have been able to solve these problems in the crawl space. For a free estimate, do not hesitate to contact us!
  • Insulation of crawl space discovered in Godmanchester, Qc
    Insulation of crawl space discovered in Godmanchester, Qc

    Insulation of crawl space discovered in Godmanchester, Qc

    PROBLEM Mr. Bruno's crawl space was uncovered and created humidity in the rest of the house. The client did not want this to affect his family's health in the long term.    SOLUTION  Systèmes Sous-sol Québec’s team suggested a solution that guaranteed a dry space all year round. A solution including 3 products; TerraBlock insulation, SmartDrain and CleanSpace encapsulation product. Our TerraBlock insulation provides a puncture-resistant vapor barrier on all surfaces it covers - one that will not be damaged by water or support the growth of mold, rot, and mildew. As for the SmartDrain, it is a floor drain installed at the lowest point of the crawl space to intercept water infiltration caused by plumbing leaks. And finally the CleanSpace will prevent the growth of mold. In addition it is odorless and very safe to use.  
  • Encapsulation of a wet crawl space in Saint-Anicet.
    Encapsulation of a wet crawl space in Saint-Anicet.

    Encapsulation of a wet crawl space in Saint-Anicet.

    Mr. Tessier contacted us for a free evaluation to encapsulate his crawl space. There was already insulation, but it was not made with products designed especially for crawl space. Our specialist Sam went to Saint-Anicet to give this advice and make this submission. He recommended the installation of our CleanSpace crawl space waterproofing membrane and the SmartDrain drain that will capture the infiltration of water from the earth. All of this is connected to the Sanidry Sedona dehumidification and air purification system. This area is finally dry and clean and contributes to the circulation of clean air throughout the house.
#1 Canadian Dealer 2020

#1 Canadian Dealer 2020

25 Miles Award

25 Miles Award

2019 Consumer Choice Award

2019 Consumer Choice Award

Gary Tang

Gary Tang

General Manager

Gabriela Ruiz

Gabriela Ruiz

Service Coordinator

Michel Haydamous

Michel Haydamous


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