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Products & Services
Basement Repair Services & Products
WaterGuard Interior System
DryTrak Drainage Channel
TrenchDrain Drain Grate
IceGuard Discharge Line
FlexiSpan Wall Crack Repair
Polyurethane Crack Sealing
WellDuct Window Drainage
BrightWall Waterproof Panels
ThermalDry Wall Barrier
Basement To Beautiful Pre-finishing Wall Insulation Panels
Drain Tile Installation
SuperSump Pump System
TripleSafe Pumping System
UltraSump Battery Back Up
Sanidry Dehumidifier

Foundation Repair Services & Products
Push Pier Underpinning For Settlement, Foundation Leveling, Sinking Foundation Repair
Geo-lock Wall Anchors
Geo-lock Helical Anchors
PowerBrace Bowed Wall Repair
CarbonArmor Fiber Wall Repair
SmartJack Crawl Space Support
Slab Pier Repair
PolyLevel Concrete Lifting
EZ Post Deck Repair
Shotcrete Wall Restoration

Before and After Pictures from Cornwall
Cracked Foundation Wall in Cornwall, Ontario
Cracked Foundation Wall in Cornwall, Ontario
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Cracked Foundation Wall in Cornwall, Ontario

Before After
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.

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Company Awards
Consumer Choice Award
Consumer Choice Award
Systèmes Sous-Sol Québec was selected as the winner of the 2019 Consumer Choice Award in the category "Foundations- Replacement and... [Read more]
#1 Canadian Dealer 2018
#1 Canadian Dealer 2018
We are so proud to announce that we won the #1 Candian Dealer award of the Basement Systems International network... [Read more]
#29 of the Top 50 - 2018
#29 of the Top 50 - 2018
Systèmes Sous-sol Québec is one of 400 dealers in basement waterproofing, crawl space encapsulation and foundation repairs and this year,... [Read more]
More Awards

Your Dependable Cornwall, ON Wet Basement & Foundation Crack Repair Experts

For a FREE no-obligation basement waterproofing, foundation repair estimate in Cornwall, ON, please fill out the form to the right and Systèmes Sous-sol Québec will contact you shortly.
Happy Customers Surrounding Cornwall, ON
Work Requests

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Responsible basement waterproofing, foundation repair company serving Cornwall, Ontario

We not only adhere to the highest industry standards, we strive to be the industry leader in the home improvement related services we provide. We also use state-of-the-art products and technology which are designed to fix your home. We are the authorized Basement Systems dealer in Cornwall, ON.

Services we offer in Cornwall:

  • Wet/flooded basement waterproofing solutions.
  • Lifetime warranty on all perimeter waterproofing systems.
  • Foundation and structural repair solutions.
  • 25-year warranty against manufacturing defects on foundation products.
  • Basement finishing and remodeling services.
  • Crawl space sealing with CleanSpace vapor barrier.
  • 25-year warranty on crawl space encapsulation systems.
  • Financing Available
  • FREE written estimates and inspections, and fast installation
Case Studies From Cornwall
Foundation
The client's concrete block wall foundation was bowing inwards because of hydrostatic pressure. Water infiltration coming in from the small cracks on...
Click to read solution...
More Case Studies
Photo Galleries From Cornwall
This underground extension enables downspout water to escape without being clogged by wet dirt.
This underground extension enables downspout water to escape without being clogged by wet dirt.
This discharge line allows water to get out of your basement even if the pipe freezes in winter.
This discharge line allows water to get out of your basement even if the pipe freezes in winter.
Our SuperSump sump pump system pumps out water intercepted by the WaterGuard drain.
Our SuperSump sump pump system pumps out water intercepted by the WaterGuard drain.
Job Stories From Cornwall, ON
Damp crawl space... a problem solved in Cornwall

When our client called us, he was concerned about his damp crawl space, and he was right to worry. Damp crawl spaces bring humidity upstairs and cause the growth and proliferation of dust mites, mold, and smelly rooms. If you feel like your crawl space air is damp, smelly and humid did, you should address this issue as soon as possible because it affects the air that is circulating in your home and consequently affects the air you breathe! To analyse thoroughly the crawlspace and recommend our different solutions, we sent our specialist Michael who did a FREE inspection.

We solved this issue by installing TerraBlock foam insulation with a vapor barrier under the CleanSpace liner which is a multi-layer membrane that contains a antimicrobial additive to stop water vapor and condensation. While these products help seal the whole dirt ground and block water vapors from flowing through or off the crawl space walls and floor, the SaniDry Sedona dehumidifier system helps dry the air no matter how damp it is. It’s a high-performance dehumidifier and filtrations system that help prevent mold and reduce musty odors by drying the air. This air, the air that circulates in your home from ground to top will feel healthier and more comfortable.

We are very glad to have helped this client fix his humidity problems with the most effective and efficient products on the market.

Damp crawl space... a problem solved in Cornwall - Photo 1Damp crawl space... a problem solved in Cornwall - Photo 2
Work Requests From Cornwall, ON
Johnston Ave. in Cornwall
Leaking basement. Sump pump not collecting any water from the ground. Might need weeping tile replacement
Cumberland St in Cornwall
Foundation has severe damage do to lack of upkeep. Purchased house 1 year ago. Wet basement. Noticed exterior doors don't properly close and new cracks on inside walls. I'm interested in a quote as well as financing. Thank you.
Demontigny Street in Cornwall
I am from Cornwall Ontario interested in using your product for 750 sqft basement with 8' ceiling .I already have framing and insulation on basement walls. Regards
Adolphus St. in Cornwall
My basement leaks , we tried patching one wall but now we seem to be getting even more water
Old Orchards Ave in Cornwall
Needs to installs sump pump in our basements..
Brookdale Avenue in Cornwall
We are buying a house and there are small size 4 cracks in the foundation wall outside. How much will it cost to repair that?
Pitt Street in Cornwall
Water in basement from high water table, looking for a solution liked the interior drain system
Marydale in Cornwall
Leak in corner of the basement .House is on septic system. Sump pump is at opposite end of basement. No detectable crack.
in Cornwall
We have a crawl space which is a roughly 3 foot (lower in some sections) cinder block foundation. I would like to get a quote on a vapor barrier and ventilation. I take possession of the home on July 2nd and would like to schedule an appointment. Thank you
Serving the following Cornwall, ON postal codes
K6H 0A2, K6H 0A3, K6H 0A4, K6H 0A5, K6H 0A6, K6H 0A7, K6H 0A8, K6H 0A9, K6H 0B1, K6H 0B2, K6H 0B4, K6H 0B5, K6H 0B6, K6H 0B7, K6H 0B8, K6H 0B9, K6H 0C1, K6H 0C2, K6H 0C3, K6H 0C4, K6H 0C6, K6H 0C7, K6H 0C9, K6H 0E1, K6H 0E2, K6H 0E4, K6H 0E6, K6H 0E7, K6H 0E8, K6H 0E9, K6H 0G1, K6H 0G2, K6H 1A2, K6H 1A3, K6H 1A4, K6H 1A5, K6H 1A6, K6H 1A7, K6H 1A8, K6H 1A9, K6H 1B1, K6H 1B2, K6H 1B3, K6H 1B4, K6H 1B5, K6H 1B6, K6H 1B7, K6H 1B8, K6H 1B9, K6H 1C1, K6H 1C2, K6H 1C3, K6H 1C4, K6H 1C5, K6H 1C6, K6H 1C7, K6H 1C8, K6H 1E1, K6H 1E2, K6H 1E3, K6H 1E4, K6H 1E5, K6H 1E6, K6H 1E7, K6H 1E8, K6H 1E9, K6H 1G1, K6H 1G2, K6H 1G3, K6H 1G4, K6H 1G5, K6H 1G7, K6H 1G8, K6H 1G9, K6H 1H1, K6H 1H2, K6H 1H3, K6H 1H4, K6H 1H5, K6H 1H6, K6H 1H7, K6H 1H8, K6H 1J4, K6H 1J5, K6H 1J6, K6H 1J7, K6H 1J8, K6H 1J9, K6H 1K1, K6H 1K2, K6H 1K3, K6H 1K4, K6H 1K5, K6H 1K8, K6H 1K9, K6H 1L1, K6H 1L2, K6H 1L3, K6H 1L4, K6H 1L5, K6H 1L6, K6H 1L7, K6H 1L8, K6H 1L9, K6H 1M1, K6H 1M2, K6H 1M3, K6H 1M4, K6H 1M5, K6H 1M6, K6H 1M7, K6H 1M8, K6H 1M9, K6H 1N1

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