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 Courtice
Wall Crack Leads to Sleepless Nights in Courtice, Ontario

Wall Crack Leads to Sleepless Nights in Courtice, Ontario

Before After
Wall Crack Leads to Sleepless Nights in Courtice, Ontario Wall Crack Leads to Sleepless Nights in Courtice, Ontario

Trying to fix a repair repeatedly is frustrating. It leaves you wondering if the issue will ever be resolved and can keep you awake at night.

In Courtice, Ontario, a customer was tired of dealing with a pesky water leak in his basement. The problem had persisted for years, and he had tried many different store-bought solutions with no success.

Clarke Basement Systems came in and finally changed his basement for the better. System Design Specialist Ryan Hanlon met with the customer and inspected the basement before recommending our FlexiSpan® Crack Repair.

Foreman Ali Fereidouni started by injecting the polyurethane sealant within the crack before caulking the exterior. FlexiSpan® stays durable but can still shift without losing its seal, keeping seeping water at bay. Lastly, a drain is placed over the entire crack in case of any future gaps that occur.

The customer doesn’t have to worry about his basement anymore and can use the space for storage again. No more headaches and sleepless nights!

FlexiSpan® Installation in Courtice, ON

FlexiSpan® Installation in Courtice, ON

Before After
FlexiSpan® Installation in Courtice, ON FlexiSpan® Installation in Courtice, ON

Our customers were in the middle of finishing their basement to sell their home when the contractor spotted a leak in the foundation. Our customer wanted the crack sealed immediately to stay on schedule with the renovations and retail listing.

Our team installed a FlexiSpan® Foundation Crack Repair System that never dries out or breaks since it adapts with the foundation.

The customers were thrilled to have a dry, protected basement. They were able to finish renovating the basement and finally put the house up for sale.

New Sump Pump in Courtice, ON

New Sump Pump in Courtice, ON

Before After
New Sump Pump in Courtice, ON New Sump Pump in Courtice, ON

Due to hydrostatic pressure, a new sump pump was necessary to keep the basement dry,  Now the customer can renovate their basement without having to worry about any further water damage.

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

Basement Waterproofing & Crawl Space Insulation in Courtice, ON

He took the time to explain the process and was so tidy. Highly recommend Ali & Clarke basement systems....
Happy Customers Surrounding Courtice, ON
Work Requests

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Reviews From Courtice
Testimonials From Courtice
They are very professional and aim to please.
Testimonial by Damaris C. from Courtice, ON
They came today to do the repair and I can’t say enough good things
Testimonial by Alana T. from Courtice, ON
Jason was my pre-installation rep and he was excellent, very informative and knowledgeable of the services they offered and how it would help
Testimonial by Don B. from Courtice, ON

Basement Waterproofing Experts Serving Courtice, 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 Courtice 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 Courtice 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 Courtice 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 Courtice
The way concrete foundations are poured leaves them susceptible to water seepage. Builders typically do everything they can to ensure the foundation...
A basement rec room is an excellent addition for a home to have. We use these rooms for entertaining, catching up with friends, and as a place to...
In a newer home there was a constant problem with hydro-static pressure; driving water up and underneath the basement floor causing puddles. The...
Job Stories From Courtice, ON
Foundation Crack in Courtice, ON

Our customer in Courtice, Ontario, found a crack in the corner of their poured foundation wall that had begun to leak. They worried that it would become worse and cause further damage to their home. The basement needed to be fixed before they finished the basement.


An appointment was set up with System Design Specialist, Ron Monk, who assessed the situation and provided a permanent solution. Installation Foreman, Mark, installed:

  • a FlexiSpan® Wall Crack Repair System

FlexiSpan® provides a drainage strategy and permanent fix for all wall cracks. Waterproofing in any form is not a matter of trying to block the water, but to ensure that water is directed away from the area, so it does not end up on the basement floor.


The client was satisfied they could confidently refinish their basement and was impressed with the nationally backed warranty that states specifically; “Wall cracks repaired with FlexiSpan® are warranted against leakage for 25 years.” Which is also transferrable if they ever decide to sell their home.

Leak in Basement in Courtice, ON

A customer that contacted us from Courtice, Ontario, had an issue regarding a water leak in their basement. A contractor the customer had hired was not able to finish the basement until the problem was resolved. The customer wanted a fast and efficient solution to their problem and didn’t want to delay finishing the basement because they eventually wanted to put the house on the market.

Steve Matthews, System Design Specialist, spoke with our customer and advised them on a solution to alleviate the leakage problem. Mark, a foreman, sealed the crack stopping water from entering the home. Mark used:

  • a FlexiSpan® Foundation Crack Repair System

Our customer was thrilled to have the job completed efficiently and on time. They were also glad to hear about our transferable warranty that covers any future home buyers. The basement was finally finished and ready for listing.

Work Requests From Courtice, ON
Project Location: Courtice, ON
Water is seeping up through the carpet in the basement. I think we may have a burst pipe, but I'm not sure where.
Project Location: Courtice, ON
Water leak in corner of basement where washer and dryer are located
Project Location: Courtice, ON
Cracks in foundation that lead up into bricks.
Project Location: Courtice, ON
There is water leakage in the crawl space in a couple of areas and I would like someone to take a look at it and give me an estimate on repair. Thanks very much
Project Location: Courtice, ON
We have a crack in our foundation that is leaking. It is in the unfinished section of our basement right behind our washer & dryer. Vapour barrier goes about halfway down the wall and now I can see water behind the barrier. The crack comes down below the vapour barrier and in the past (usually in the spring when snow is melting, we would occasionally see a bit of water. Today I was doing something behind the dryer and saw some water on the floor.
Project Location: Courtice, ON
Purchased a home in December (first home), and have quickly started to discover a large foundational crack - it is affecting windows, brick cracking, etc. Was not disclosed to us, so we would like to have this looked at and see what our options are.
Project Location: Courtice, ON
I have a few cracks in my foundation. Some are leaking water.
Project Location: Courtice, ON
Crack in the foundation.
Project Location: Courtice, ON
Springtime wet dampness spreading from one corner in basement
Project Location: Courtice, ON
Would like an estimate on repair of a small crack (leak) I just discovered in my unfinished basement in Courtice. House is 3.5 years old. Could it be repaired anytime or would it have to wait until spring?
Project Location: Courtice, ON
I have a leak in my basement
Project Location: Courtice, ON
Crack in foundation leaking through to basement floor.
Project Location: Courtice, ON
I want to have my basement finished in the next year and would like to ensure there are no leaks.
Project Location: Courtice, ON
I have a detached 2 car garage built on a concrete slab. The garage is 31 years old. It has settled and the floor has cracks. I would like to have the garage leveled and lifted to its original height.
Project Location: Courtice, ON
Looking for an estimate on a crack in my basement.
Project Location: Courtice, ON
Water seeping through wall during heavy rain in 20 square foot area.
Project Location: Courtice, ON
I have a crack in foundation along with a few other seepage spots that were previously repaired prior to us purchasing the home. The issue is along the back wall (east side of the house)
Project Location: Courtice, ON
Hi Im about to finish my basement but want to do an assessment on some craks that might need fixing before we start the building
Project Location: Courtice, ON
Outside concrete patio areas sunken and or cracked
Project Location: Courtice, ON
Foundation crack from top to bottom causing leak into the basement. Looking to have the crack injected/sealed
Serving the following Courtice, ON postal codes
L1C 3K4, L1E 0A2, L1E 0A3, L1E 0A4, L1E 0A5, L1E 0A6, L1E 0A7, L1E 0A8, L1E 0A9, L1E 0B1, L1E 0B2, L1E 0B3, L1E 0B4, L1E 0B5, L1E 0B6, L1E 0B7, L1E 0B8, L1E 0B9, L1E 0C1, L1E 0C2, L1E 0C3, L1E 0C4, L1E 0C5, L1E 0C6, L1E 0C7, L1E 0C8, L1E 0C9, L1E 0E1, L1E 0E2, L1E 0E3, L1E 0E5, L1E 0E6, L1E 0E7, L1E 0E9, L1E 0G1, L1E 0G2, L1E 0G3, L1E 0G4, L1E 0G5, L1E 0G6, L1E 0G7, L1E 0G8, L1E 0H1, L1E 0H2, L1E 0H3, L1E 0H4, L1E 0H5, L1E 0H6, L1E 0H7, L1E 0H9, L1E 0J1, L1E 1A2, L1E 1A3, L1E 1A4, L1E 1A5, L1E 1A6, L1E 1A7, L1E 1A8, L1E 1A9, L1E 1B1, L1E 1B2, L1E 1B3, L1E 1B4, L1E 1B5, L1E 1B6, L1E 1B7, L1E 1B8, L1E 1B9, L1E 1C1, L1E 1C2, L1E 1C3, L1E 1C4, L1E 1C5, L1E 1C6, L1E 1C7, L1E 1C8, L1E 1C9, L1E 1E1, L1E 1E2, L1E 1E3, L1E 1E4, L1E 1E5, L1E 1E6, L1E 1E7, L1E 1E8, L1E 1E9, L1E 1G1, L1E 1G2, L1E 1G3, L1E 1G4, L1E 1G5, L1E 1G6, L1E 1G7, L1E 1G8, L1E 1G9, L1E 1H1, L1E 1H2, L1E 1H3, L1E 1H4, L1E 1H5, L1E 1H6, L1E 1H7, L1E 1H8, L1E 1H9, L1E 1J1, L1E 1J2, L1E 1J3, L1E 1J4, L1E 1J5, L1E 1J6, L1E 1J7, L1E 1J8, L1E 1J9, L1E 1K1

our service area

Clarke Basement Systems service area