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Products & Services

Mold Services
Dust Mites Control
Mold Spores
Mold Prevention
Dry Rot & Brown Rot

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

Crawl Space Repair Services & Products
CleanSpace Encapsulation Vapour Barriers and Liners
Turtl Access Hatch
EverLast Crawl Space Doors
SaniDry CSB Dehumidifier
SmartDrain Water Drainage
SilverGlo Wall Insulation
TerraBlock Floor Insulation
SmartSump Sump Pump
WallCap Block Wall Sealer
SmartVent Flood Vents

Foundation Repair Services & Products
Push Pier Underpinning for Settlement, Foundation Leveling, Sinking Foundation Repair
Structural 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 & Leveling
ShotCrete Wall Restoration

Before and After Pictures from North York
Our Solution to Failure of Proper External Waterproofing, Toronto, ON

Our Solution to Failure of Proper External Waterproofing, Toronto, ON

Before After
Our Solution to Failure of Proper External Waterproofing, Toronto, ON Our Solution to Failure of Proper External Waterproofing, Toronto, ON

A home in Toronto, Ontario had a basement that was very damp and leaked in several locations when it rained. The basement is large and they would see water coming up through the ceramic tile joints.  The issue was hydrostatic water pressure from below the house, as well as moisture penetration through the foundation walls. This was happening due to the failure of a proper external waterproofing system when the home was built. The basement was finished and they wanted to have a space with no water leaking in causing mold and damage.

The customer no longer wanted to deal with a smelly basement and damaged items so they called Clarke Basement SystemsJose Martinez and the team installed a WaterGuard around the perimeter of the basement to capture ground water.  A ThermalDry Wall membrane was used to direct moisture from foundation walls and direct it to the WaterGuard.  A SuperSump sump pump with UltraSump Battery Back-up in case of power failure was installed to collect water and discharge it outside through our IceGuard. This system ensures that any ground water penetrating the basement is captured and pumped away from foundation. The customer is happy knowing they can finish the basement and use the space with no worry about water damage.



Saving the Future of a Foundation with PolyLevel, Toronto, ON

Saving the Future of a Foundation with PolyLevel, Toronto, ON

Before After
Saving the Future of a Foundation with PolyLevel, Toronto, ON Saving the Future of a Foundation with PolyLevel, Toronto, ON

A home in Toronto, Ontario had a problem located at the side of the home along the concrete walkway. The concrete walkway was sinking in various places along the home with the vast majority of the slabs sinking towards the foundation. The sinking concrete was causing trip hazards and water was flowing towards the foundation. If it continued it could lead to future basement and foundation problems. 

The customer called Canadian Concrete Leveleing and John DiNicolantonio explained what would be done to help fix the problem. Kyle McKeown and the team came in and used the PolyLevel Foam and NexusPro Joint Sealant. The foam followed the path of least resistance beneath the slabs to fill all of the voids and lift the concrete. The NexusPro Joint Sealant is then used to seal the gaps to prevent water from damaging the foundation. The customer was happy we could eliminate the risk of future foundation damage and rid them of all trip hazards. 

Lifting a Pool Deck in Toronto

Lifting a Pool Deck in Toronto

Before After
Lifting a Pool Deck in Toronto Lifting a Pool Deck in Toronto

Lift of a pool deck to eliminate multiple tripping hazards. 

Company Awards
Clarke Basement Systems has been awarded the HomeStars Best of 2016 award which we are very proud of.... [Read more]
The Community of Markham has chosen our business as the winner of the annual Markham Economist & Sun Reader’s Choice... [Read more]
Habitat Canada brings communities together to help families build strength, stability and independence through affordable homeownership. Canadian Concrete Leveling donated their... [Read more]
More Awards

Your Trusted North York Basement Waterproofing & Foundation Repair Experts

We had a great experience with Clarke Basement Systems. They were extremely knowledgeable. They were really professional.  I loved their...
Happy Customers Surrounding North York, ON
Work Requests

Click the icons to see what our customers had to say.

Reviews From North York
Testimonials From North York
Elizabeth from Toronto called on Clarke Basement Systems for help with her wet basement.
Testimonial by Elizabeth from Toronto, ON
We would like to let you know that your company present high standard of business practices. From receptionist to professional visiting (Ron Monk in our...
Testimonial by Theresa from Toronto , ON

Basement Waterproofing & Crawl Space Repair in North York, Ontario

Water in the basement or crawl space leads to mold, rot, musty odors and structural issues. It also leads to a reoccurring headache for you. Luckily, Clarke Basement Systems has a team of trained experts that are available to permanently fix the problem.

We will properly install a hidden drainage system in your North York basement and completely encapsulate your crawl space with CleanSpace vapor barrier. We are here to solve the problem for you.

Why Choose Us?
  • Lifetime Warranty on all Perimeter Waterproofing Systems
  • 25-year Warranty on Crawl Space Encapsulation Systems
  • Sump Pump Installation, Repair & Replacement
  • Basement, Crawl Space & Spray Foam Insulation
  • Crawl Space & Basement Dehumidifiers
  • Hundreds of Satisfied Customers

Structural & Foundation Repair in North York

Foundation repair problems destroy your North York home’s value and can be dangerous. Our in-house team of structural and geo-technical engineers are here to help. We design and install the right solution and usually have the project finished in less than a week. You will have peace of mind as we provide a 25-year written warranty against defects on our foundation products.

We Fix
  • Bowing Walls
  • Sagging Floors
  • Stair-Step Cracks
  • Tilting Chimneys  
  • Foundation Cracks
  • Garage Slabs   
We Use
  • Wall Anchors
  • Slab Piers
  • I-Beam Wall Braces
  • Helical Deck Piers
  • Sticking Windows
  • Underpinning

PolyLevel™ Concrete Leveling & Lifting

The sunken and cracked concrete around your North York home is both an eyesore and a safety hazard. It is also likely to get worse, but we can fix it for you.

Our experts use PolyLevel, a superior polyurethane foam. Small holes are drilled in the concrete, the foam is injected and the expanding foam lifts the concrete. The majority of contractors you will call use mudjacking instead of foam. Mudjacking is heavier, require larger holes in the concrete and does not last as long as PolyLevel. Call us today to learn more about our proven concrete lifting and leveling techniques.

We Fix
  • Cracked Driveways
  • Uneven Patios
  • Sinking Sidewalks      

  • Uneven Concrete
  • Sunken Pool Decks
  • Highway & Commercial Issues
Case Studies From North York
The homeowner had groundwater seepage throughout the finished basment and crawlspace of his home. The foundation was built from block. The...
The homeowner had discovered step cracking in the brickwork on the front face of his garage above the door and along the side of the garage. The...
Our customer had a finished basement that was ready for a face lift, the customer called Clarke Basement Systems before refinishing the basement as...
Press Releases From North York
Clarke Basement Systems is the winner of the HomeStars Best of 2013 award for foundations.... [Read more]
At this year's Team Basement Systems Convention, Clarke Basement Systems earned four awards for their waterproofing and foundation repair work throughout Toronto, Ontario.... [Read more]
Toronto, ON - Clarke Basement Systems has earned the “Best of 2012 in Toronto” award in the waterproofing category given by HomeStars. Home Stars offers a free service for homeowners to inquire about reputable companies and to write their own reviews about their experiences.... [Read more]
Job Stories From North York, ON
Wet Toronto, ON Basement Fixed With WaterGuard and TripleSafe

The City of Toronto, ON was having issues with one of their water waste plants, which was suffering from water intrusion into the basement after heavy rainfall. The building was 50 years old and was in need of repair, so they reached out to Clarke Basement Systems to remediate their problem.


Claude Mathieu went to the water waste plant to assess the situation, and found that they were in need of effective drainage. He suggested the DryTrak interior waterproofing system, combined with the Flangeless WaterGuard perimeter drainage system. He also advocated the use of the TripleSafe Sump Pump for added protection against future flooding. Primary Foreman Rob Trevisan brought a team of specialists to perform installation, and they have saved the water waste plant from future water issues.

CleanSpace and SaniDry Repairs Toronto, ON Crawl SpaceWhen Tony L. discovered his Toronto, ON crawl space was in disrepair, he knew ignoring the problem would only make it worse. Tony contacted Clarke Basement Systems, and their representative Claude Math

When Tony L. discovered his Toronto, ON crawl space was in disrepair, he knew ignoring the problem would only make it worse. Tony contacted Clarke Basement Systems, and their representative Claude Mathieu went out to diagnose the situation.


After examining the property, Claude was able to recommend several crawl space repair products, including the CleanSpace liner and a SaniDry high efficiency dehumidifier. Primary Foreman Jose Martinez and his team arrived on the scene to perform the installation and completed the project quickly and efficiently. Tony was grateful to Clarke Basement Systems for their hard work and courteous service, and he was very pleased with the outcome.

Work Requests From North York, ON
Buckland Road in North York
Slanded floor
Walsh Ave in North York
I was wondering how much it would cost to waterproof a 500-600 sqft basment?
Harrow Dr in North York
I have not noticed any issues in basement but previous ownders had added a room to back of house. large void have opened up as if the room is pulling apart from rest of house.
Melrose Ave in North York
Retaining wall leaning
Shaughnessy Blvd. in North York
I am doing a reno for my basement after I try out all the drywall I saw some wood was damaged. But I am not sure what it is.
Storer Dr in North York
Water is coming in through a part of my basement. May have a foundation crack, not sure but want to fix.
Cameron Avenue in North York
Request for Helical Piles prices. The following is the dropbox link to download the complete set of tender documents: https://www.dropbox.com/sh/jbmh5hhbcs5thiv/AADmhjmRudLh-pYDyktaMFfVa?dl=0
in North York
Leak in basement
in North York
Our cold room is right below our front patio. The cold room walls get very moist during the winter and rainy days, and puddles of water form on the floor. We believe that the water leaks down from concrete stairs in front. This is a townhouse.
Edmonton Dr. in North York
My sidewalk house/ garage side is sunk, and I need lift it for 2 to 4 inches. Please reply my email and I have a draw for the detail, I need as soon as possible, hopefully this week please Thank you.
Sagebrush Lane in North York
Hi, I have a leak in my basement and would like to have it repaired. Let me know when you can check it out. Weekday mornings are best. Thanks
Glencairn Ave in North York
My driveway is slightly slain toward the house. Need to raise up a bit.
Bob Yuill Drive in North York
Hello, I like to have a battery based sump pump in Cass power failure etc. Please give me estimate.'
Roselawn Avenue in North York
Crawl space odour
Darren W. North York, ON
VM left Requesting estimate on concrete leveling for slab housing pool equipment Contact info left, office will call back to schedule
Larkfield Drive in North York
Looking for estimate on back up battery for sump pump. Referred by word of mouth. Appointment set.
Finch Ave West in North York
Contractor from DDK looking to schedule appointment for concrete leveling a A/C pad at a Nursing Home Office advised the poly level manager will return his call to schedule appointment
Kingsdale Ave in North York
Trench Drain Clogging Back Up Battery for Sump Pump
Christina L. North York, ON
Looking to get a price for the install of a battery back up sump pump. Caller was advised office has no price in the system Caller was advised she would be eligible for the sump pump rebate Office will call back to schedule appointment
Barcley Road in North York
Caller looking for estimate for polylevel for walkway. Referred by internet. No appointment set at this time
Serving the following North York, ON postal codes
M1L 4R9, M1L 4S1, M1R 1P6, M1R 1P7, M1R 1R1, M1R 1R2, M1R 1R3, M1R 1R4, M1R 1R5, M1R 1R6, M1R 1S6, M1R 1S9, M1R 1T1, M1R 1T6, M1R 1T9, M1R 1V2, M1R 1V7, M1R 1V9, M1R 5G7, M2H 0A1, M2H 0A3, M2H 0A4, M2H 0A5, M2H 1A1, M2H 1A2, M2H 1A3, M2H 1A4, M2H 1A5, M2H 1A6, M2H 1A7, M2H 1A8, M2H 1A9, M2H 1B1, M2H 1B2, M2H 1B3, M2H 1B4, M2H 1B5, M2H 1B6, M2H 1B7, M2H 1B8, M2H 1B9, M2H 1C1, M2H 1C2, M2H 1C3, M2H 1C4, M2H 1C5, M2H 1C6, M2H 1C7, M2H 1C8, M2H 1C9, M2H 1E1, M2H 1E2, M2H 1E3, M2H 1E4, M2H 1E5, M2H 1E6, M2H 1E7, M2H 1E8, M2H 1E9, M2H 1G1, M2H 1G2, M2H 1G3, M2H 1G4, M2H 1G5, M2H 1G6, M2H 1G7, M2H 1G8, M2H 1G9, M2H 1H1, M2H 1H2, M2H 1H3, M2H 1H4, M2H 1H5, M2H 1H6, M2H 1H7, M2H 1H8, M2H 1H9, M2H 1J1, M2H 1J2, M2H 1J3, M2H 1J4, M2H 1J5, M2H 1J6, M2H 1J7, M2H 1J8, M2H 1J9, M2H 1K2, M2H 1K3, M2H 1K4, M2H 1K5, M2H 1K6, M2H 1K7, M2H 1K8, M2H 1K9, M2H 1L1, M2H 1L2, M2H 1L3, M2H 1L4, M2H 1L5, M2H 1L6, M2H 1L7, M2H 1L8, M2H 1L9, M2H 1M1, M2H 1M2, M2H 1M3, M2H 1M4, M2H 1M5, M2H 1M6, M2H 1M7, M2H 1M8, M2H 1M9, M2H 1N1, M2H 1N2

our service area