Proudly Serving Greater Toronto including - Mississauga, Markham, Vaughan & nearby

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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
ShotCrete Wall Restoration

Concrete Repair
PolyLevel Concrete Lifting & Leveling
NexusPro Cracked Concrete Repair
SealantPro Concrete Sealant
Interior Slab Repair
Concrete Sidewalk Repair
Concrete Pool Deck Repair
Concrete Driveway Repair

Before and After Pictures from York
Crack Repair in Toronto, ON

Crack Repair in Toronto, ON

Before After
Crack Repair in Toronto, ON Crack Repair in Toronto, ON

The perfect solution for a leaky basement in Toronto, ON! Here we have our patented FlexiSpan® Crack Repair System at work! This system is a three-part process which includes flexible sealant, flexible and porous foam as well as an impermeable membrane. All parts of this process completely seal the crack to ensure there is no chance of any water coming in. 

Retaining Wall Threatens Driveway and Lawn in Toronto, Ontario

Retaining Wall Threatens Driveway and Lawn in Toronto, Ontario

Before After
Retaining Wall Threatens Driveway and Lawn in Toronto, Ontario Retaining Wall Threatens Driveway and Lawn in Toronto, Ontario

An ounce of prevention is worth a pound of cure, and for a Toronto, Ontario, customer the saying couldn’t be more accurate.

A retaining wall separated his driveway from his front lawn, but over the years, the retaining wall had tipped. If the wall collapsed, it would cause damage to his front yard, possibly the vehicles in the driveway, and the repair cost would be into the thousands. Not to mention the stress of redoing his yard and driveway.

The customer contacted Clarke Basement Systems hoping for a solution that would protect his property and save him money. System Design Specialist Ron Monk met with the customer at his home and after inspecting the situation, developed a plan using our GeoLock™ Wall Anchor System to straighten and stabilize the retaining wall.

GeoLock™ wall anchors go deep into the ground and connect to a wall using a series of rods and plates. Foreman Don Clarke started by excavating the area surrounding the wall before installing the system. Anchor rods and earth anchors were installed next before wall plates were placed overtop of them. Once installed, the plates were tightened accordingly, to straighten and stabilize the wall. Finally, the area was backfilled, and our 25-year warranty ensures the wall will stay stable for many years to come.

Thanks to our system, the customer’s wall is stable, and his investments are protected. He was ecstatic that he didn’t need to replace the whole wall, or complete even more repairs if the wall had collapsed. A happy customer and a job well done by the Clarke Basement Systems team!

Solution to Ground Water Seepage in Toronto, ON

Solution to Ground Water Seepage in Toronto, ON

Before After
Solution to Ground Water Seepage in Toronto, ON Solution to Ground Water Seepage in Toronto, ON

A home in Toronto, Ontario, had a problem in the basement. Over the years there was groundwater leaking into the area. It was damaging the finished walls, floor, personal items. It was also causing odours, and the homeowner did not want it to affect the rest of the home. They were also unable to use the basement space.

The customer called Clarke Basement systems and spoke to Claude Mathieu, who explained the process. Lucio and the team came in and installed WaterGuard® Below-Floor Drain, Flangless WaterGuard®, ThermalDry® Wall Insulation and SuperSump® Premier Sump Pump System. This system ensures that any groundwater penetrating through the basement foundation walls or building up below the basement floor is captured and pump away from the foundation. These products were used around the full perimeter of the basement and across the middle, below the concrete floor, to ensure no more basement leaks.

The homeowner can now refinish basement and use the space with no concerns of groundwater leaking in.

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]
HomeStars Best of 2016 Award
Clarke Basement Systems has been awarded the HomeStars Best of 2016 award which we are very proud of.... [Read more]
More Awards

Established Foundation Repair & Basement Waterproofing Contractor in York, ON

Extremely pleased with the job Clarke Basement Systems did to salvage our retaining wall....
Happy Customers Surrounding York, ON
Work Requests

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Reviews From York
Testimonials From York

Expert Basement Waterproofing in York, ON

It is not uncommon for a home to require basement waterproofing. Water in the basement or crawl space leads to mold, rot, musty odors, and structural issues. Not only will the water ruin your home by creating costly structural damage but it will also cause health issues. Humidity and mold will spread from the lower level of your home into your living areas, afflicting your respiratory system. 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 with our professional basement waterproofing services.

We will properly install a hidden drainage system in your York basement that will send out unwanted water and completely encapsulate your crawl space with a CleanSpace vapor barrier that will keep the water out. We also utilize sump pumps and dehumidifiers in our complete basement waterproofing systems. Our basement waterproofing services are so thorough that your basement could be finished and livable when we are done. We are here to solve the problem for you.

> Schedule Your FREE Basement Waterproofing Estimate

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 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. 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

Fast & Affordable Concrete Repair

The sunken and cracked concrete around your York 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®.

If your home has cracked concrete steps, pool decks, patios, or other slabs, then NexusPro is the right solution. NexusPro repairs concrete cracks and joints and is ultra-durable, so it will withstand UV rays, extreme weather, and more.

After utilizing our expert concrete repair solutions, consider the powerful concrete sealant, SealantPro. SealantPro further protects your concrete by bonding with it to guard against oil, gasoline, liquids, and other debris. In just one coat, SealantPro extends the life of your concrete by 3 to 5 times overall. 

Call us today to learn more about our proven concrete leveling, cracked concrete repair, and concrete sealing techniques.

We Fix
  • Cracked Driveways
  • Uneven Patios
  • Sinking Sidewalks      

  • Uneven Concrete
  • Sunken Pool Decks
  • Highway & Commercial Issues
  • Changes saved.
Case Studies From York
Next to your home, a vehicle is likely one of the most significant expenses in your life. They get us from point A to point B, and we often spend...
News & Events From from York
Basement Waterproofing by the Experts
Waterproofing your basement keeps it dry and warm and creates a healthier environment in your home. Before you finish your basement, you should make sure it is waterproofed to avoid damage to your floor, walls, furniture and belongings.... [Read more]
Water damage in your basement? It's problem that needs to be taken care of right away. If not, it will continue to get worse and can become costly - and unhealthy - very quickly.... [Read more]
The professional basement waterproofing experts at Clarke Basement Systems have the knowledge and experience to quickly identify the source of your basement leakage problem and offer a practical solution that will keep your basement warm, dry and healthy.... [Read more]
Work Requests From York, ON
Project Location: York, ON
We have a problem with some foundation settlement and would like a quote for the repairs. On the same side of the house, we have one addition where the floor slants away towards the outside wall and we have one spot near the center of our house where the floor dips down.
Project Location: York, ON
Noticing crack in the interior and exterior of my house. I believe that this maybe as a result of my house requiring waterproofing and pressure being put on the exterior. I have had a few waterproofing companies come by to give me a quote and have hired one but want to make sure that there isn't any other issues to be concerned about.
Project Location: York, ON
I have a leaning retaining wall and have been served with a property standards order to have it fixed by September 21, 2020.
Project Location: York, ON
Looking for a quote on a mudjacking job needed on my front steps. Look forward to hearing from someone. Kind regards, Steph
Project Location: York, ON
I have evidence of moisture wicking through the concrete block walls of the cold room in my basement. I would like a professional assessment of the extent of the problem and an estimate of the cost to assess it.
Project Location: York, ON
Looking for estimate for ~9'x18' crawl space repair and encapsulation. White mold from small leak, possibly from adjacent sunroom foundation. Crawl space floor appears to be Styrofoam base with paperboard top layer. Accessed via basement bathroom storage closet.
Project Location: York, ON
I have a sloped driveway (concrete pad) that has a retaining wall on one side. Soil erosion under one of the pads has created a void, resulting in the pad sinking.
Project Location: York, ON
Cracked line going along the right side of the house.
Project Location: York, ON
Estimate for foundation protection for our home.
Project Location: York, ON
We have a house that was built in 1894, with a dirt crawl space under the back portion of the house. I would like to inquire as to the cost to encapsulate and insulate the crawl space.
Project Location: York, ON
I'm planning on building a 16x20ft deck and was thinking of using metal posts as footings. I would like a free estimate on how much that would cost me. Thanks
Project Location: York, ON
Need free estimate for basement cracks on foundation wall
Project Location: York, ON
Hi I am home owner.Provably there are some water leakage in my basement. Can I pls. get an free inspection and estimate to fix the problem. Thank you.
Project Location: York, ON
Hi, I need a quote to repair a crack in my foundation causing a leak in my finished basement. I'd prefer if the leak is repaired from the inside of the basement but am not against receiving a quote for both an external repair and internal repair. Thanks
Project Location: York, ON
Help! The house that we've bought is showing some cracks in the wall. The house had sunk in the past but may not have settled. Please advise on estimate & inspection on potential foundation repair. Thanks
Serving the following York, ON postal codes
M5P 1N4, M5P 1N8, M5P 1P1, M5P 1P3, M5P 2X7, M5P 2X8, M5P 2X9, M5P 2Y1, M5P 2Y2, M5P 2Y3, M5P 3G8, M5P 3G9, M5P 3H3, M5P 3H4, M5P 3H5, M5P 3H9, M5P 3J4, M5P 3J5, M5P 3J7, M5P 3J9, M5P 3K1, M5P 3K3, M5P 3K7, M5P 3K8, M5P 3K9, M5P 3L1, M5P 3L3, M5P 3L4, M5P 3L5, M5P 3L6, M5P 3L8, M5P 3M4, M5S 2S5, M6B 1B3, M6B 1B4, M6B 1B5, M6B 1B6, M6B 1B7, M6B 1B9, M6B 1C1, M6B 1C2, M6B 1C3, M6B 1C4, M6B 1C5, M6B 1C6, M6B 1C7, M6B 1C8, M6B 1C9, M6B 1E1, M6B 1E2, M6B 1E3, M6B 1E4, M6B 1E5, M6B 1E6, M6B 1E7, M6B 1E8, M6B 1E9, M6B 1G1, M6B 1G2, M6B 1G3, M6B 1G4, M6B 1G7, M6B 1J9, M6B 1K1, M6B 1K2, M6B 1K3, M6B 1K4, M6B 1K5, M6B 1K6, M6B 1K7, M6B 1K8, M6B 1K9, M6B 1L1, M6B 1M1, M6B 1M2, M6B 1M3, M6B 1M4, M6B 1M5, M6B 1M6, M6B 1M7, M6B 1M8, M6B 3H1, M6B 3H2, M6B 3H3, M6B 3H4, M6B 3H5, M6B 3K7, M6B 3K8, M6B 3K9, M6B 3L1, M6B 3L2, M6B 3M2, M6B 3M3, M6B 3M4, M6B 3M5, M6B 3M6, M6B 3M7, M6B 3N4, M6B 3N5, M6B 3N6, M6B 3N7, M6B 3N8, M6B 3P6, M6B 3P7, M6B 3P8, M6B 3P9, M6B 3R1, M6B 3R3, M6B 3R5, M6B 3T9, M6B 3V1, M6B 3V2, M6B 3W6, M6B 3W7

our service area

Clarke Basement Systems service area