Systèmes Sous-sol Québec or Basement Systems Quebec: Imperméabilisation de Sous-Sols et Réparation de Fissure de Fondation et Vides Sanitaires

Patented & proven solutions

Damp? Musty? Humid? Get a dry, healthy crawl space today!

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Since 2007, Systèmes Sous-sol Québec has provided homeowners throughout Québec with basement waterproofing, sump pump installation, crawl space repair, foundation repair, basement finishing, and moisture control services. Owned by Michel Haydamous, the company combines engineering-minded expertise with proven Basement Systems solutions designed to create healthier, drier homes for Québec families. Systèmes Sous-sol Québec serves Cornwall, Hawkesbury, Blainville, Chambly, Lachine, Lasalle, Saint-Bruno, and surrounding communities throughout Québec with free inspections, written estimates, and 100% satisfaction guaranteed. Discover before and after photos of our work and read reviews and testimonials from satisfied customers below.

Authorized Installers of Quality Products and Systems

Systèmes Sous-sol Québec is an authorized dealer in Québec for Basement Systems, Inc., a recognized leader in basement waterproofing solutions. We are also a Foundation Supportworks authorized dealer for foundation repair systems and a CleanSpace crawl space solutions authorized dealer. Our team has access to industry-leading products, professional training, and proven installation standards backed by some of the most recognized organizations in the home repair industry.

Why Choose Us

As the authorized Basement Systems company in Québec, customers can benefit from:

Basement Waterproofing, Crawl Space & Foundation Repair Specialists
Transferable Lifetime Warranties on Select Systems
Free Inspections & Written Estimates
Fast Installation Using Proven Basement Systems Products
100% Satisfaction Guaranteed

Services

Basement Waterproofing to help keep basements dry and protected from water intrusion.
Crawl Space Repair & Encapsulation for dirt and concrete crawl spaces.
Sump Pump Installation designed to remove water quickly and efficiently.
Foundation Repair for settling foundations, cracks, and structural issues.
Basement Finishing to create a cleaner, more comfortable living space.
Moisture Control Solutions to help reduce mold, humidity, and musty odors.

Products Installed

Sump Pump Systems
CleanSpace® Crawl Space Encapsulation System
Foundation Piers & Wall Anchors
EverLast™ Basement Wall Panels
Perimeter Drainage Systems & French Drains
SaniDry™ Dehumidifiers
ThermalDry® Floor Matting
RainDrop® Gutter Guards
Thermal Insulation Systems

Service Area

We proudly serve homeowners throughout Québec, including Montreal, Québec City, Laval, Gatineau, Longueuil, Sherbrooke, Lévis, Trois-Rivières, Terrebonne, Saint-Jean-sur-Richelieu, and surrounding communities across the province.

Get started by scheduling your free estimate today!

See before and after photos of wet basements, crawl spaces, and foundations we've repaired and browse reviews and testimonials from homeowners across Québec below. Call today to schedule your free inspection and written estimate.

Since 2007, Systèmes Sous-sol Québec has helped homeowners throughout Québec create healthier, drier, and more stable homes. Owned by Michel Haydamous, the company combines engineering-minded expertise with proven repair solutions to address wet basements, foundation problems, crawl space concerns, and excess moisture.

Authorized Installers of Quality Products and Systems

Free inspections, written estimates, transferable warranties on select systems, and a 100% satisfaction guarantee have helped make Systèmes Sous-sol Québec a trusted choice for homeowners across the province.

Services & Products

Basement Waterproofing: We install interior drainage systems, perimeter drains, sump pump systems, and other Basement Systems® waterproofing products to help keep basements dry and protected from water intrusion.
Sump Pump Installation: Our high-performance sump pump systems are designed to remove water quickly and efficiently, helping reduce the risk of basement flooding and water damage.
Crawl Space Repair & Encapsulation: We install the CleanSpace® Crawl Space Encapsulation System to help isolate crawl spaces from the earth, control moisture and humidity, and improve the overall health and energy efficiency of the home.
Foundation Repair: Using Foundation Supportworks® products, including foundation piers and wall anchors, we help stabilize settling foundations, address structural concerns, and repair foundation cracks and bowing walls.
Basement Finishing: We transform unfinished basements into cleaner, more comfortable living spaces using durable, moisture-resistant products such as EverLast™ Basement Wall Panels and ThermalDry® Floor Matting, designed specifically for below-grade environments.
Moisture Control & Insulation Solutions: We install SaniDry™ dehumidifiers and thermal insulation systems to help reduce excess humidity, control musty odors, improve indoor air quality, and enhance energy efficiency.
Gutter Protection: We install RainDrop® Gutter Guards to help reduce clogs and improve roof drainage around the home.

Why Choose Systèmes Sous-sol Québec?

Homeowners throughout Québec choose Systèmes Sous-sol Québec because we offer:

Basement waterproofing, crawl space, foundation repair, and basement finishing expertise under one roof
Free, no-obligation inspections and written estimates
Transferable lifetime warranties on select systems
Fast installation using proven Basement Systems®, Foundation Supportworks®, and CleanSpace® products
Solutions customized to the unique needs of each home
A commitment to exceptional customer service backed by our 100% satisfaction guarantee

Service Area

Systèmes Sous-sol Québec proudly serves homeowners throughout Québec, including communities such as Cornwall, Hawkesbury, Blainville, Chambly, Lachine, LaSalle, Saint-Bruno, Montréal, Québec City, Laval, Gatineau, Longueuil, Sherbrooke, Lévis, Trois-Rivières, Terrebonne, and Saint-Jean-sur-Richelieu, as well as surrounding areas across the province.

Schedule Your Free Inspection

Explore before-and-after photos of basements, crawl spaces, and foundations we've repaired, and read reviews from homeowners throughout Québec to see the results we've achieved.

Contact Systèmes Sous-sol Québec today to schedule your free inspection and written estimate. Whether you're dealing with a wet basement, foundation settlement, crawl space moisture, or planning to finish your basement, our team is ready to help you create a safer, healthier, and more comfortable home.

Services Offered

Basement Waterproofing Crawl Space Repair Foundation Repair Basement Finishing

Reviews
Testimonials
Before & After
Awards
Team

By Mark R. Notre-Dame-De-L'Ile-Perrot, QC

"This was our second job, we are considering others...good..."

By Wayne R. Notre-Dame-de-L'Ile, QC

"Presentation and confidence in materials used"

By Annie F. Gatineau, QC

"I appreciated the team's approach. They quickly identified..."

By Anabela M. Pierrefonds, QC

"Your crew was very good, dedicated personal. The sales..."

Encapsulation of a crawlspace in Montreal

Mr. Robert contacted us because he needed help with moisture problems in his crawlspace. Upon arriving at the free inspection, we found that the best solution was to encapsulate his crawlspace with the CleanSpace vapor barrier. To start, our team removed the debris from the crawlspace. They then installed the drainage mat, followed by the CleanSpace vapor barrier. Finally, they installed a SaniDry Sedona dehumidifier and a SmartDrain drain system to ensure good humidity and prevent flooding.

Before

After

Crawl Space Encapsulation in La Petite Patrie

Our Company’s team of experienced technicians went to encapsulate the Crawl Space in La Petite Patrie. Our client’s house had problems of humidity causing bad smells in the residence. The team installed a CleanSpace membrane, specifically designed to create an ultra-resistant moisture barrier, which will greatly help prevent mold growth. This product is guaranteed for 25 years and consists of a robust material with a thickness of 20 mil. After the installation of this product, the Crawl Space has better look and the service cellar is much brighter, due to the whiteness and specifications of the membrane.

Before

After

Encapsulation of a crawl space in Sainte-Anne-Des-Plaines, Qc

Relative humidity is one of the causes of crawl space problems for when its high mold will begin to grow, the floors will decay, and the place will be filled with insects and critters. So in order to fix high humidly problems, we need to fix leaking groundwater and to cover the exposed earth from the floor by water vapor membranes. By installing a sump pump system in this crawl space in Sainte-Anne-Des-Plaines, that is specially designed for crawl spaces, such as our SmartSump , we make sure that the water leaking in gets to it instead of ponding. As for the wet walls and exposed earth, we installed the patented CleanSpace crawl space encapsulation system, which is a very heavy duty material that has an anti-microbial ingredient molded into the material to resist mold and bacteria growth.

Before

After

Crawl space in a very bad shape in Coaticook, Qc

Mr. Laperle has an earthen crawl space that had water infiltration all year round. This is a recurring problem and it always make his house damp with musty smells. To improve the comfort of his home and make the air healthier, our foreman and his team encapsulated the crawl space. To do this, they installed a Sump Pump System, a drainage membrane and a Cleanspace vapor barrier on the earth floor.

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