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  • Permanent waterproofing solutions
  • Strong, stud-free wall systems
  • Rigid foam insulation
  • Waterproof, low-profile flooring
  • Mold-resistant materials
  • Code-compliant egress windows

Total Basement Finishing Companies in Quebec

1620 boul Saint-Elzéar O
Laval, QC H7L 3N2
Systèmes Sous-sol Québec, aka Basement Systems Quebec, is the local Total Basement Finishing dealer in Montréal, Québec, Laval, Joliette, and the nearby areas.
View company profile for reviews, awards, before & after photos, and more.

Building Finished Basements that Last

1. You want to have a comfortable, beautiful finished basement, BUT you want it to last!

2. Most contracting companies use standard “above-grade” materials which is a recipe for disaster. These materials end up with mold and mildew and you have to tear out the whole basement and start over.

3. Total Basement Finishing contractors eliminate these problems by only using completely waterproof, inorganic & mold-resistant materials that are designed specifically for basements. You will have the basement you've wanted and it will last long as your house.

Patented Basement Materials

Once we’ve completed your basement remodeling project, we guarantee you’ll be as pleased and confident in our craftsmanship and sturdy materials as we are! 

Our Products Include:

  • Waterproof, Washable, Insulated Walls
  • Mold-Resistant, No-Sag suspended Ceilings
  • Full Basement Bathrooms
  • Variable, Energy-efficient Basement Lighting
  • French, Bifold & six-paneled steel Doors
  • Basement Staircases
  • Energy-efficient, Double-paned Windows
  • Carpet, Tile & Faux Wood Flooring

We use and install only top-quality, patented products and materials, including basement tiles, walls, and floors, as well as basement windows and energy-efficient dehumidifiers. Any and all work completed by our basement finishing contractors comes with a 50-year mold-and-moisture warranty to ensure lasting comfort in your home. We design, build and exclusively install our basement products. 

Whether you want to convert your unused basement into a home theatre, home gym, or family room, our basement contractors have the tools and knowledge for the job.

A Contracting Company You can Trust

Testimonials

  • My experience with Systèmes Sous-sol Québec has been excellent. Read Full Testimonial
    Daniel C.
    Ahuntsic-Cartierville, QC

    Customer Testimonial

    Daniel C.
    Ahuntsic-Cartierville, QC
    The problem I had fixed was with one of my dwellings. I have a three and a half that is a short basement, and it had water infiltration. One of the walls was starting to show cracks.In theory, there was supposed to be a French drain on the outside, but I never dug the outside earth around the house. In other words, I have a swimming pool on the outside, a deck that occupies part of the backyard, so we would have had to demolish everything to enter the equipment in order to access the French drain.When I went to the home show, I saw this was a professional company that offered solutions adapted to the type of problems I was facing. The company was specialized in crawl spaces, which was my case, and in basement water infiltration, specifically. What I liked is that we were able to find, with the WaterGuard system, the ability to install a French drain as there was water infiltration, from the inside of the house rather than do it from the outside.As for my level of satisfaction, if I have a neighbor or friend who mentions they have similar water infiltration problems and who need a solution, I will not hesitate to recommend Systèmes Sous-sol Québec.The company is very professional, a quality service from finding the solution and selling it to the execution of the work.The work went very well, the team was very professional. They were meeting with me from time to time during the days when the work was being done and giving me explanations during the different stages. I was looking for a company that was specialized in this kind of problems.Do a solution that would last very long. When I will sell the house, the warranty is transferable. My experience with Systèmes Sous-sol Québec has been excellent.There is a lifetime warranty that is offered with it.
  • In only one month, Basement Systems fixed the problem in my house. When finished, they did put all the... Read Full Testimonial
    Mr. Gonzalez
    Laval, QC

    Customer Testimonial

    Mr. Gonzalez
    Laval, QC
    Mr. Gonzalez' home in Laval, Quebec had a finished basement that one day began to leak and cause many problems. As a savvy homeowner, Mr. Gonzales began to search the internet for the right company to fix the problem and restore his basement. That is how he found Basement Systems Quebec. The company not only that the right solution to stop basement leaks, but they also had the right materials to restore the water damaged walls and floors. The company is the only basement restoration company in Quebec to offer MillCreek waterproof basement flooring and the exclusive EverLast Basement Wall Restoration System: 100% waterproof and mold resistant material that will not support mold growth or be damaged by moisture and water accidents. Mr. Gonzalez is extremely satisfied with the way his basement looks now, and confident that it will last for many years. He is also very happy with the service provided by the company. "In only one month, Basement Systems fixed the problem in my house. When finished, they did put all the furniture, all the equipment in the same place as when they saw it at the first moment they came to my house."
  • Si je trouve quelqu’un qui aurait le même problème, je suis prêt à... Read Full Testimonial
    Lucian G.
    Montreal, QC

    Customer Testimonial

    Lucian G.
    Montreal, QC
    Ce père a découvert des infiltrations d’eau et des dommages dans le sous-sol de son fils dans la Rive-Sud de Montréal. Il a aidé son fils à trouver une bonne compagnie qui aurait une solution adaptée à ce problème. En faisant sa recherche en ligne, il a trouvé beaucoup d’explications sur notre site web et a bien aimé la logique de notre système d’imperméabilisation de sous-sol de l’intérieur. M Ghitescu a trouvé que le système de drain intérieur WaterGuard et les systèmes de pompes de puisard SuperSump et UltraSump étaient ce qu’il leur fallait. Dans cette vidéo, notre client discute de la qualité de la relation qu’il a eue avec les membres de notre équipe dès le début de la procédure. Dans ses propres mots : « Si je trouve quelqu’un qui aurait le même problème, je suis prêt à recommander la compagnie. »
  • Il y avait vraiment une belle conscience professionnelle de tous les ouvriers qui sont venus ici! Read Full Testimonial
    Linda-Lyle Aubry
    Rosemont-La Petite-Patrie, QC

    Customer Testimonial

    Linda-Lyle Aubry
    Rosemont-La Petite-Patrie, QC
    Suite aux dégâts d’eau qu’a subi le sous-sol de sa maison centenaire dû à un bris du chauffe-eau, Mme Aubry a appelé sa compagnie d'assurance pour constater les dommages. Cette dernière a réalisé, après avoir enlevé le plancher, qu'il y avait une infiltration d’eau au niveau de la fondation et ne pouvait donc payer pour les réparations des dégâts d’eau que si le sous-sol était complètement imperméabilisé. Après avoir rencontré 2 compagnies sans être convaincus que les solutions règleraient leur problème, Mme Aubry et son conjoint se sont tournés vers l’internet et ont trouvé Systèmes Sous-sols Québec. Comme nos clients ne voulaient pas embarquer dans de grands travaux, notre système de drainage intérieur WaterGuard était une solution parfaite, puisqu’ il remplaçait complètement le drain français, et leur permettait donc d’éviter de grands travaux d'excavation dans leur cour nouvellement aménagée. Un autre grand avantage avec notre compagnie était la garantie à vie que nous offrons pour le drain, en comparaison avec les autres entrepreneurs en étanchéisation des sous-sols qui ne leur ont offert que des garanties de 10 ans. Mme Aubry et son conjoint ont très aimé l'approche de tout notre personnel : de la confiance qu’a émané notre spécialiste Jorge en agissant comme conseiller plutôt que comme vendeur, à l’empathie et l’esprit de toute l’équipe, le respect de leurs présence, valeurs et environnement. Dans ses propres mots Mme Aubry nous racontait qu’« Il y avait vraiment une belle conscience professionnelle de tous les ouvriers qui sont venus ici". Mme Aubry a tellement apprécié le service de notre équipe qu'elle a trouvé « qu’ils avaient un esprit familial puis qu’[elle] faisait partie de la famille". Enfin nous sommes très contents d’avoir pu répondre aux besoins de Mme Aubry et de sa famille, et de rendre son sous-sol habitable.
  • We paid less than we would have paid if we went with another supplier but the work was actually done well and... Read Full Testimonial
    Nick I.
    St. Leonard, QC

    Customer Testimonial

    Nick I.
    St. Leonard, QC
    After ten years living in his home, Nick I. from St. Leonard, Quebec noticed that the basement started to leak, probably because of an extension that was built without proper drainage. He called a few companies in the area for an estimate, but only Basement Systems Quebec offered a complete solution that made sense to him for a number of reasons. First it wouldn't require digging out the foundation from the outside or a lot of excavation from the inside. Installing the exclusive WaterGuard system offered by the company would only require jack hammering a six inch trench along the interior perimeter of the basement walls. The system was also more affordable, but it was the sump pump system with alarm and a battery backup, and the Transferable Lifetime Warranty offered by the company that really convinced Nick that he had the right company and the right products for the job. "Overall we are very satisfied. If someone would come to me and ask me for my advice, without hesitation I would strongly recommend Basement Systems Quebec, because their problems would be solved, they could be assured that there wouldn't be any more water coming into their house, and the service that they would provide would be very good, and they could have the confidence that their are reliable." - explains Nick. "We paid less than we would have paid if we went with another supplier but the work was actually done well and we haven't had a problem ever since. "
  • In this video, the family discusses their experience with Systèmes Sous-sol Québec and the... Read Full Testimonial
    Eva & Jeff P.
    Notre-Dame-de-l'Île-Perrot, QC

    Customer Testimonial

    Eva & Jeff P.
    Notre-Dame-de-l'Île-Perrot, QC
    Eva and Jeff Parry, residents of Notre-Dame-de-l’Île-Perrot, QC, had dirt crawl space that was very humid because of the soil and the water infiltrations. Mold started to appear on walls and floors. They knew they had to fix this issue because their daughter Jessika had a terminal condition called Spinal Muscular Atrophy type 1 so the Parrys had to do everything they could to improve the air quality that was badly affecting her breathing and respiratory system. Our team went and fixed this problem by fully encapsulating the crawl space by installing a vapor barrier membrane, a crawl space interior drain, a sump pump system and a powerful dehumidifier system. In this video, the family discusses their experience with Systèmes Sous-sol Québec and the impact of the encapsulation on their daughter’s health.
  • There is not a drop of water in the basement this year and we have probably had the worst spring on record. Read Full Testimonial
    Garnet A.
    Beaconsfield, QC

    Customer Testimonial

    Garnet A.
    Beaconsfield, QC
    Hi Andrew, I just wanted to give you an update on our basement. People love to give bad news, but I want to give you good news. There is not a drop of water in the basement this year and we have probably had the worst spring on record. I don't know if you remember the job, but your team put in an interior french drain around 3/4 of my basement and dug the sump pit about 1 foot deeper. The interesting part is that there has not been a drop of water in the interior french drain. It seems like digging the sump pit deeper was all that was necessary. Water is pumped out into my front ditch before it ever gets high enough to get into the drain. Now, I can finish my basement with confidence. Thanks for your help. Garnet
  • Andrew et Eugene sont formidables!! Read Full Testimonial
    Judith D.
    Montréal, QC

    Customer Testimonial

    Judith D.
    Montréal, QC
    Très satisfaite de l'installation, Eugene était très professionel. Andrew et Eugene sont formidables!!
  • Systèmes sous-sol Québec est une compagnie que je peux recommander les yeux fermées... Read Full Testimonial
    Samuel S.
    Petite-Patrie - Montréal, QC

    Customer Testimonial

    Samuel S.
    Petite-Patrie - Montréal, QC
    Bonsoir Nelson xxxxxx , Systèmes sous-sol Québec est une compagnie que je peux recommander les yeux fermées. J'ai fais faire des travaux il y a 3 ans et j'ai été ravi non seulement sur le moment mais encore plus aujourd'hui quand je vois la durabilité. De plus que ce soit Michel le propriétaire ou Antonio qui est le représentant avec lequel j'ai toujours été en contact, ce sont des personnes de confiance et très intègres. Lorsqu'ils disent qu'ils peuvent ou vont faire ceci ou cela, "delivery exceeds expectations". C'est un drôle de hasard mais j'ai signé aujourd'hui un contrat de près de 20K pour des travaux d'assainissement dans un immeuble locatif que je possède... cela est pour vous dire à quel point je suis satisfait de leur travail il y a qques années, de leur service et de leur professionnalisme. Si vous voulez en discuter plus en détails, vous pouvez me rejoindre au xxxxx. Samuel xxxxxxx

If you want to completely remodel your Quebec home’s basement or you’d like to simply refinish it, we’re the company for you! Our trained Quebec basement contractors have years of experience in remodeling, refinishing, and renovating basements

We serve multiple Quebec locations. Contact our basement finishing contractors today to schedule your free basement inspection and receive a free finishing or remodeling quote. There’s no better time to refinish or remodel your Quebec home’s basement – call today! 

Finishing your basement is the most affordable way to increase your home's living space. But doing this construction work with standard "above-grade" materials is a recipe for disaster —in the form of mold, mildew and ongoing moisture problems. Total Basement Finishing eliminates these problems by only using waterproof, mold-resistant materials that are designed specifically for basement environments.

Customer Reviews

  • full starfull starfull starfull starhalf star
    By Christelle N.
    Montreal, QC
    Réactivité
    View Review

    Customer Review

    full starfull starfull starfull starhalf star
    By Christelle N.
    Montreal, QC
    Réactivité
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    By Philippe C.
    Rosemère, QC
    Le représentant était très bien équipé pour sa...
    View Review

    Customer Review

    full starfull starfull starfull starhalf star
    By Philippe C.
    Rosemère, QC
    Le représentant était très bien équipé pour sa démonstration (vidéos, brochures, ...)il sait de quoi il parle et a su me convaincre de l'expertise de Systèmes Sous-sols Québec.
  • full starfull starfull starfull starfull star
    By Lisa M.
    Laval, QC
    Je n'étais pas là toute la journée lors de...
    View Review

    Customer Review

    full starfull starfull starfull starfull star
    By Lisa M.
    Laval, QC
    Je n'étais pas là toute la journée lors de l'installation, mais je peux dire qu'ils ont été ponctuels et attentifs à ce que je disais.
  • full starfull starfull starfull starempty star
    By Sébastien H.
    Montréal, QC
    Vous sembliez être des experts dans votre domaine même si...
    View Review

    Customer Review

    full starfull starfull starfull starempty star
    By Sébastien H.
    Montréal, QC
    Vous sembliez être des experts dans votre domaine même si vos prix n'étaient pas compétitifs.
  • full starfull starfull starfull starfull star
    By Robert N.
    Granby, QC
    Quels sont les aspects de notre société qui vous ont fait...
    View Review

    Customer Review

    full starfull starfull starfull starfull star
    By Robert N.
    Granby, QC
    Quels sont les aspects de notre société qui vous ont fait choisir notre compagnie? Présentation et explication
  • full starfull starfull starfull starempty star
    By Louis-marie D.
    Sherbrooke, QC
    Mon sous-sol n'a jamais été aussi sec!
    View Review

    Customer Review

    full starfull starfull starfull starempty star
    By Louis-marie D.
    Sherbrooke, QC
    Mon sous-sol n'a jamais été aussi sec!
  • full starfull starfull starfull starfull star
    By Duc N.
    Montréal, QC
    Q: En générale, quelles sont la ou les raisons qui vous...
    View Review

    Customer Review

    full starfull starfull starfull starfull star
    By Duc N.
    Montréal, QC
    Q: En générale, quelles sont la ou les raisons qui vous ont incité à choisir Basement Systems Quebec et pas une autre entreprise ?  R: Professionnels
  • full starfull starfull starfull starfull star
    By Carole K.
    Saint Lambert, QC
    The information booklet was very helpful
    View Review

    Customer Review

    full starfull starfull starfull starfull star
    By Carole K.
    Saint Lambert, QC
    The information booklet was very helpful
  • full starfull starfull starfull starfull star
    By Sherri M.
    Pointe Claire, QC
    It's been a week since Basement Systems has transformed our...
    View Review

    Customer Review

    full starfull starfull starfull starfull star
    By Sherri M.
    Pointe Claire, QC
    It's been a week since Basement Systems has transformed our basement - the system is amazing - not a drop of water to be seen, even during the Spring thaw. We are more than pleased at the results so far, and the look of the cleanspace on the walls and floor is fantastic. Great job!
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