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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 Whitby
Concrete Island Causing a Serious Hazard, Whitby, ON

Concrete Island Causing a Serious Hazard, Whitby, ON

Before After
Concrete Island Causing a Serious Hazard, Whitby, ON Concrete Island Causing a Serious Hazard, Whitby, ON

A parking lot in Whitby, Ontario, had a concrete slabs that had sunken substantially on the inside the curb. This was causing many potential trip hazards for visitors to the Center. The Engineering Technician from the Town of Whitby wanted to fix this problem as soon as possible, before someone got hurt.    

The customer called Canadian Concrete Leveling to fix the island in the parking lot.  Our team injected PolyLevel foam into the sunken slabs. This lifted the concrete back to its original pour line and stabilized the concrete slab. The trip hazard is no longer existent and the technician is happy know they don't have to worry about it anymore.


Crack Repair in Whitby, ON

Crack Repair in Whitby, ON

Before After
Crack Repair in Whitby, ON Crack Repair in Whitby, ON

This Whitby, ON homeowner had some cracks in a concrete wall foundation. The cracks would cause leakage into the basement when it rained. The customer wanted to fix the crack so that this would not continue to happen. Clarke Basement Systems came in and used the FlexiSpan System so that it stays bonded with wall movement, and seals the crack permanently. 

Sunken Patio Causing Water Leaking Concerns, Whitby, ON

Sunken Patio Causing Water Leaking Concerns, Whitby, ON

Before After
Sunken Patio Causing Water Leaking Concerns, Whitby, ON Sunken Patio Causing Water Leaking Concerns, Whitby, ON

A home in Whibty, Ontario had sinking concrete in their backyard. The patio around the pool had sunk a couple inches down and the step above the slab was becoming a trip hazard. This was also a concern because water was draining too close to the house. The customer was worried that water would intrude into the basement and further settling. 

The customer took precautions and called Clarke Basement Systems.  Billy McKeown and the Canadian Concrete Leveling crew came in and used PolyLevel Injections on the sinking patio by the house. The PolyLevel foam went deep beneath the concrete slab and filled in the voids that were allowing the concrete to sink. Now the customer has a leveled patio and no longer has to worry about water damage to the home. 


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

Dependable Basement Waterproofing & Foundation Repair Contractor Serving Whitby, ON

We were devastated to find 3 inches of water in our newly renovated basement.  I would recommend Clarke Basement Systems without...
Happy Customers Surrounding Whitby, ON
Work Requests

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Reviews From Whitby
Testimonials From Whitby
My experience with Clark Basement Systems was fantastic. Chris answered all of our questions in a patient and easy to understand manner.
Testimonial by George E. from Whitby, ON
Needless to say we are relieved that the source wasn't related to the Clarke's installation and through the whole discovery process both Rob and Steve were...
Testimonial by Gunar Z. from Whitby, ON
Steve made me feel at ease right away. It was an easy decision to go with CBS!
Testimonial by Nancy S. from Whitby, ON

Basement Waterproofing & Crawl Space Repair in Whitby, 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 Whitby 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 in Whitby

Foundation repair problems destroy your Whitby 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 Whitby home is both an eyesore and a safety hazard. It is also likely to get worse with time, but we can fix it for you!

Our experts use PolyLevel, a superior polyurethane foam to provide reliable concrete lifting & leveling solutions. Small holes are drilled in the concrete and the expansion of the foam lifts & levels the concrete. The majority of contractors you will call use mudjacking instead of foam. Mudjacking is heavier, requires 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 Whitby
The homeowner noticed stair step cracks in brick veneer on the exterior and a space between the foundation wall and actual bricks. The floor in the...
On a brand new construction project it was found that the soil bearing the weight of the house was unstable, causing the front elevation of the house...
During a visit to a potential new home our customer noticed that the basement of the home had puddles of water in various locations throughout the...
Job Stories From Whitby, ON
Concrete Island Causing a Serious Hazard, Whitby, ON

A parking lot in Whitby, Ontario, had a concrete island that had sunken substantially, inside the curb stones. This presented many potential trip hazards for visitors to the Centre, which the Engineering Technician from the Town of Whitby wanted us to alleviate.    

The customer called us regarding the area next to the electric car charging station in the Iroquois Center parking lot. Our team came and in injected PolyLevel foam. This lifted the concrete back to its original position and allowed the concrete to be stable for the future. The trip hazard is no longer there and the technician is happy know they don't have to worry about it anymore.


Concrete Island Causing a Serious Hazard, Whitby, ON - Photo 1
Work Requests From Whitby, ON
Cedar Street in Whitby
We need an estimate within 1 week and we would need the work to start within 2 weeks, if this is possible please call me so we can schedule a time for the quote. We have very bad water damage and the house will be put up for sale within 30 days.
Fairview Drive in Whitby
Vapor barrier existing crawlspace estimate
Heda Court in Whitby
Experienced some flooding in a large portion of our basement this week. Looking for a professional who can quote us out on the identification on the leak as well as the best long term option for fixing it.
Inverary Court in Whitby
I have an unfinished basement. I have owned the home for approximately one year. I have noticed that there are a several cracks that leak when we have heavy rain with melting snow. Please provide a quote to fix the foundation cracks.
Cresser Avenue in Whitby
Hi My basement is leaking water. I would like you to take a look and give me a quote ASAP.
Castlebar Crescent in Whitby
I have a foundation leak coming from the corner of my home. Need someone to come out an look at the problem and a peice for fixing it.
Winchester And Anderson in Whitby
Two foundation cracks no leaks. I want to repair them with the epoxy method. I would like to do this work in the spring around April. I prefer to have it repaired from the outside. Can I get a quote?
Forecastle Rd in Whitby
Pool deck is subsiding
Stanhope St in Whitby
Hi, I have a crack in my basement foundation floor and would like to know how much it would be to fix it. Thanks!
Sugarmaple Crescent in Whitby
After heavy rain or use of the garden house, we have a leak into our basement coming through the foundation.
Ash Street in Whitby
Current mould build up in basement as the north side of home has poor water grading, and the leak location at this time still unknown. We move in September 28th 2017.
New Dominion Ct in Whitby
There is leakage of water below the well window of the house.It is fully furnished basement & I do not see crack on the wall.
Baldwin Street S in Whitby
Old farmhouse with sump working non stop
Tempo Way in Whitby
Would like someone to look at basement foundation wall, as water is getting in
Christaller Crt in Whitby
Mold in basement
Downey Dr in Whitby
Have two foundation wall cracks that are leaky; one weeps whenever there is heavy rain, and the other, which is located near an external tap, leaked heavily last week when we had the sprinkler running for too long. I'm interested in having an external solution installed to prevent any further leaks.
Broughton Court in Whitby
We had significant water seepage in our basement in late June. Had to remove and dispose of the carpet. I believe it was due to hydrostatic forces and saturated ground. We may need a sump pump to prevent further water seepage. Although I will be disconnecting the downspouts from the weepers, the sump pump may provide added assurance. I would like a quote.
Kent ST in Whitby
We had a flooded basement last month and would like to prevent this from happening in the future again. Thanks
Bowman Avenue in Whitby
Waterproofing is required for a portion of our foundation. We are interested in an estimate. Thanks!
Braebrook Dr in Whitby
Leaking cold room below front porch
Serving the following Whitby, ON postal codes
L1M 0A1, L1M 0A2, L1M 0A3, L1M 0A4, L1M 0A5, L1M 0A6, L1M 0A7, L1M 0A8, L1M 0A9, L1M 0B1, L1M 0B2, L1M 0B3, L1M 0B5, L1M 0B6, L1M 0B7, L1M 0B8, L1M 0B9, L1M 0C1, L1M 0C2, L1M 0C4, L1M 0C5, L1M 0C6, L1M 0C7, L1M 0C8, L1M 0C9, L1M 0E1, L1M 0E2, L1M 0E3, L1M 0E4, L1M 0E5, L1M 0E6, L1M 0E7, L1M 0E8, L1M 0E9, L1M 0G1, L1M 0G2, L1M 0G3, L1M 0G4, L1M 0G5, L1M 0G6, L1M 0G7, L1M 0G8, L1M 0G9, L1M 0H1, L1M 0H2, L1M 0H3, L1M 0H4, L1M 0H5, L1M 0H6, L1M 0H7, L1M 0H8, L1M 0H9, L1M 0J1, L1M 0J2, L1M 0J7, L1M 0J8, L1M 0J9, L1M 0K1, L1M 0K2, L1M 0K3, L1M 0K4, L1M 0K5, L1M 0K6, L1M 0K7, L1M 0K8, L1M 0K9, L1M 0L1, L1M 0L2, L1M 0L3, L1M 0L4, L1M 0L5, L1M 1A1, L1M 1A2, L1M 1A3, L1M 1A4, L1M 1A5, L1M 1A6, L1M 1A7, L1M 1A8, L1M 1A9, L1M 1B1, L1M 1B2, L1M 1B3, L1M 1B4, L1M 1B5, L1M 1B7, L1M 1B8, L1M 1B9, L1M 1C1, L1M 1C2, L1M 1C3, L1M 1C4, L1M 1C5, L1M 1C6, L1M 1C7, L1M 1C8, L1M 1C9, L1M 1E1, L1M 1E2, L1M 1E3, L1M 1E4, L1M 1E5, L1M 1E6, L1M 1E7, L1M 1E8, L1M 1E9, L1M 1G1, L1M 1G2, L1M 1G3, L1M 1G4, L1M 1G5, L1M 1G6, L1M 1G7, L1M 1G8

our service area