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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

Aspen Air Filter

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
ShotCrete Wall Restoration
LintelLift Garage Lintel Repair

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

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

Before After
Our Solution to Failure of Proper External Waterproofing in Toronto, ON Our Solution to Failure of Proper External Waterproofing in 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 unwanted water entry was a result of a failure of a proper external waterproofing system when building the home. The basement was finished, and they wanted to have space with no water leaking in causing mould 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 groundwater.  A ThermalDry® Wall membrane was used to direct moisture from foundation walls and direct it to the WaterGuard.  A SuperSump® Premier sump pump with UltraSump® Battery Back-up in case of a power failure was installed to collect water and discharge it outside through our IceGuard® Discharge Line System. 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.



Basement Waterproofing for Store in Toronto, ON

Basement Waterproofing for Store in Toronto, ON

Before After
Basement Waterproofing for Store in Toronto, ON Basement Waterproofing for Store in Toronto, ON


Brokerage owners in Toronto, ON, ran into some water seepage in the basement of their storefront. Their biggest concern was that mould would begin to grow if left unattended, and they would have to shut down their business. So, they called Clarke Basement Systems, where System Design Specialist Ben Wallis created a solution to keep the business up and running.


Installation Foreman Dave Jackson installed our WaterGuard® drainage system. Next, he closed off the area with our CleanSpace® Encapsulation system. This will protect the area from water vapour and ultimately eliminate mould from impacting their store. Lastly, installing a new SuperSump® system ensures all future water seepage is discharged effectively.

Leaking Front Window Turns Soaks Basement in Cookstown, Ontario

Leaking Front Window Turns Soaks Basement in Cookstown, Ontario

Before After
Leaking Front Window Turns Soaks Basement in Cookstown, Ontario Leaking Front Window Turns Soaks Basement in Cookstown, Ontario

When dealing with a stressful situation, lightening the mood can be helpful. Sometimes we make fun of the situation we're in, or we give something a quirky name.

A couple in Cookstown, Ontario, was dealing with a water seepage issue below their front window. The water was preventing them from utilizing their basement, and they had started referring to it as the "exterior fishbowl." They dreamed of finishing their basement but wanted to get rid of the fishbowl first.

They decided to reach out to Clarke Basement Systems. System Design Specialist Chris Luke met the couple at their home and inspected the space.  He designed a system to keep their basement dry and give them the means to finish the room with confidence.

Foreman Jose Martinez dug a trench around the basement's perimeter and installed our WaterGuard® Drain System. The customers already had a sump system in place, so Jose connected the drain to the system. The basement encapsulated with CleanSpace® to stop moisture at the walls, and a WellDuct® was installed beneath the window. 

The homeowners can't wait to finish their basement finally. They're happy with the work done by our team and no longer have an exterior fishbowl.

Company Awards
Best of 2019 Homestars Award
Hailed as HomeStars' highest honour, the Best of Awards, presented by DEWALT, Canadian Contractor and RenoRun, recognizes the most trusted... [Read more]
More Awards

Foundation Repair & Basement Waterproofing Experts in North York, ON

This far exceeded our expectation and allowed us to move forward with the balance of our basement project!...
Happy Customers Surrounding North York, ON
Work Requests

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Reviews From North York
Testimonials From North York
I thought you did a fabulous job. I was so happy. I called, the salesman came right away. I said how long...
Testimonial by Debbie from Toronto, ON
Ali was great - friendly, on time, thorough and very professional. I use Clarke Basement System every year...
Testimonial by Aimee D. from Toronto, ON
They are wonderful. In particular, Ali Fereidouni, is incredibly knowledgable and always happy to answer all...
Testimonial by Frances B. from Toronto, ON

Basement Waterproofing Experts Serving North York, ON

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

Foundation Crack Repair Contractor

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
  • Underpinning


Crawl Space Vapor Barrier Encapsulation Experts

Crawl space encapsulation is the best way to eliminate musty odors, mold, moisture and mildew from under your house. Clarke Basement Systems has a team of dedicated crawl space encapsulation experts with decades of experience and warrantied products. Our patented crawl space vapor barriers provide a dependable moisture barrier that is guaranteed to last 25 years. Trust our crawl space encapsulation team to permanently fix your leaky or damp crawl space. Our crawl space encapsulation services are proven, dependable and warrantied. Call or click today to schedule your FREE crawl space encapsulation estimate!

Benefits of our Crawl Space Vapor Barriers:

  • Seal Out Cold Air, Humid Air & Moisture
  • Prevent Crawl Space Leaks
  • Improve Energy Efficiency
  • Durable Crawl Space Vapor Barrier Material with 25-year Warranty
Case Studies From North York
Store owners contacted Clarke Basement Systems for help with the basement of their store in Toronto, ON. Water was finding its way in during times of...
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...
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 thei...
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 wate...
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
Storefront in Toronto Needs Waterproofing

Store owners of a brokerage firm in Toronto, ON, had a bit of a water seepage issue that was ongoing for some time. After realizing it was getting progressively worse, they decided to call Clarke Basement Systems for a solution that would keep them safe from mould growth. First, we placed our patented WaterGuard® as a drainage system. Then they closed off the area with our CleanSpace® water vapour barrier. This will protect the place from water seepage and guide it to the drainage system, later discharging it outside the store.



Storefront in Toronto Needs Waterproofing - Photo 1
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.

Work Requests From North York, ON
Project Location: North York, ON
Water leaking into basement when snow melts and it rains
Project Location: North York, ON
Repairing foundation cracks and small holes.
Project Location: North York, ON
I need help with a mouldy and watery basement wall. Can you fix tis and get rid of the mould?
Project Location: North York, ON
Small/medium crawlspace (~4 ft high). No active moisture issues but no vapour barrier or insulation, so hoping to rectify this. Thanks
Project Location: North York, ON
- Semi-detached house built in 1964: Two-storey with finished basement (laminate flooring and drywall construction with insulation) - Observed a small amount of water underneath floor boards in a small section of the basement which is adjacent to a window well. Suspected rainfall run-off seepage into home. - No water damage observed on walls or in ceiling. - House not built with a sump-pump. House has a back-flow prevention valve installed. House waterproofed (unsure of date of waterproofing). - At grade near window well is finished with unsealed poured aggregate concrete. One slab has shifted and is draining water towards house near suspected area of wet basement concerns. - Looking to determine cause of basement water seepage and proposed solution.
Project Location: North York, ON
I would like to get an estimate done on a repair and clean-up of a crawl space. There is water coming up from the ground in the crawl space which would need to be repaired but after that to encapsulate it so we can use it for storage in the future.
Project Location: North York, ON
Wet basement 1950's bungalow cement block foundation.
Project Location: North York, ON
Basement waterproofing
Project Location: North York, ON
Need a quote to upgrade current sump pumps to Triple Safe system. Thank-you.
Project Location: North York, ON
My basement has a cold room that sits directly below my porch. The porch is a concrete slab and there is water seeping through the porch and into the cold room. Was looking at getting guidance and understanding how this can be remediated.
Project Location: North York, ON
Bowing walls
Project Location: North York, ON
I have a wet basement, and would appreya quote.
Project Location: North York, ON
We have a leak in our basement can you please come this week to look at it? Week of 21 of Feb? Either Monday, Tuesday Wednesday or Thursday? Please send email to set up time. Thanks cecilia
Project Location: North York, ON
We have a crack on one part of the foundation of our house. Not sure how deep it goes. Would need your expertise on how to get it resolved. Thank you.
Project Location: North York, ON
We are looking to have our existing sump pump system replaced.
Project Location: North York, ON
The sidewalk leading to my front porch has sunk over time. It is 7 feet wide and 2 feet deep.. I need to raise the sidewalk up to make a new step. It needs to be raised 5 inches on one side and 7 inches on the other
Project Location: North York, ON
A bedroom and a spare room in the basement have floor water damage. I have someone who fixed part of the basement but I have no comparative price for this part of the job nor do I know his skill in fixing leaks The floor is tile covered with an artificial wood.
Project Location: North York, ON
Sump pump works well but there is loud echoing sound that is produced every time is runs as well as a knocking at the end, looking for a system that is MUCH quieter to help reduce the noise
Project Location: North York, ON
We noticed mold in our basement and tried opening some drywall to take a look. We saw black mold developing along the edges of the wall floor, and there are signs of water on the ground but we don't know where the water comes from.
Project Location: North York, ON
I'm thinking of concrete injection for my sunroom. Concrete has sunk.!
Serving the following North York, ON postal codes
M1L, M1R, M2H, M2J, M2K, M2L, M2M, M2N, M2P, M2R, M3A, M3B, M3C, M3H, M3J, M3K, M3L, M3M, M3N, M4A, M4G, M4N, M4P, M4R, M5M, M5N, M6A, M6B, M6E, M6L, M6M, M7A, M9L, M9M, M9N
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