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

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Reviews From King City
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

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 King City
Concrete Lift at King City, ON Moulding Facility

Concrete Lift at King City, ON Moulding Facility

Before After
Concrete Lift at King City, ON Moulding Facility Concrete Lift at King City, ON Moulding Facility

We used PolyLevel® Injection to eliminate numerous trip hazards on the main walkway for a plastics moulding facility.

Unstable, Wet Cold Cellar Solution in King City, ON

Unstable, Wet Cold Cellar Solution in King City, ON

Before After
Unstable, Wet Cold Cellar Solution in King City, ON Unstable, Wet Cold Cellar Solution in King City, ON

A home in King City, Ontario, had a cold cellar beneath the front porch and water was seeping in. There were stored items in the area, and they were getting wet and mouldy. The foundation was cracked and folded inward, creating urgency to fix the problem. The homeowner was dealing with persistent musty odours and was looking for a solution.

The customer called Clarke Basement Systems, and Ben Wallis explained the process of our solution. Jose Martinez and the team installed WaterGuard® Below-Floor Drain, ThermalDry® wall membrane and Geo-Lock™ Wall Anchors to fix the problems. The Customer was satisfied because they didn't just spend money on their house – instead, they invested in the value of their house fixing some significant problems permanently with a fully-transferable warranty that goes with the home if they decide to sell. 


Stabilizing a Garage Concrete Slab in King City, ON

Stabilizing a Garage Concrete Slab in King City, ON

Before After
Stabilizing a Garage Concrete Slab in King City, ON Stabilizing a Garage Concrete Slab in King City, ON

We injected four inches of PolyLevel® on the center grid pattern to fill a void and stabilize a slab on the grade of a two car garage.

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

Professional Foundation Crack Repair & Basement Waterproofing in King City, ON

I highly recommend Clarke Basement Systems, and if you can... ASK FOR JOSE!...
Happy Customers Surrounding King City, ON
Work Requests

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

Basement Waterproofing Experts Serving King City, 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 King City 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 King City 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 King City 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.
Work Requests From King City, ON
Project Location: King City, ON
We have a lot of humidity in the house, specifically the Basement area. We have remedied the water intrusion and would now like to attend to the reduction/removal, of the humidity. Please call me to arrange a date for your visit. thank you.
Project Location: King City, ON
Wet basement, mold
Project Location: King City, ON
Crawl space support
Project Location: King City, ON
We have put an offer on this house subject to inspection. we have 5 days to complete. the house has a some cracks in the brick and concrete on the garage. our contractor feels the garage foundation may have shifted as the floor has bowed. we would like to verify the issues and get a cost estimate before we buy. thank you
Project Location: King City, ON
Wet basement and water under foundation.
Project Location: King City, ON
Discovered wet carpet and under padding in part of finished basement. Believe this has just happened and need foundation repaired.
Project Location: King City, ON
Very old house. Require two window well covers. Custom size I guess.
Project Location: King City, ON
I have 2 sump pits in my house (at different levels). I'd like to have someone assess what I have and look into proper backup systems etc.
Project Location: King City, ON
Looking for foundation repairs and waterproofing basement of a house built in 1861. Will require stabilizing and both interior and exterior foundation repairs.
Project Location: King City, ON
We have a leaky basement
Serving the following King City, ON postal codes
L7B 0A7, L7B 0A8, L7B 0A9, L7B 0B1, L7B 0B2, L7B 0B3, L7B 0B4, L7B 0B5, L7B 0B6, L7B 0B7, L7B 0B8, L7B 0B9, L7B 0C1, L7B 0C2, L7B 0C3, L7B 0C4, L7B 0C5, L7B 0C6, L7B 0J9, L7B 0L9, L7B 0M1, L7B 0M2, L7B 0M3, L7B 0M4, L7B 0M6, L7B 0M7, L7B 0M8, L7B 0M9, L7B 0N1, L7B 0N2, L7B 0N4, L7B 0N5, L7B 0N7, L7B 0P2, L7B 0P4, L7B 0P5, L7B 0P6, L7B 1A1, L7B 1A2, L7B 1A3, L7B 1A4, L7B 1A5, L7B 1A6, L7B 1A7, L7B 1A8, L7B 1A9, L7B 1B1, L7B 1B2, L7B 1B3, L7B 1B4, L7B 1B5, L7B 1B6, L7B 1B7, L7B 1B8, L7B 1B9, L7B 1C1, L7B 1C2, L7B 1C3, L7B 1C4, L7B 1C5, L7B 1C6, L7B 1C7, L7B 1C8, L7B 1C9, L7B 1E1, L7B 1E2, L7B 1E3, L7B 1E4, L7B 1E5, L7B 1E6, L7B 1E7, L7B 1E8, L7B 1G1, L7B 1G2, L7B 1G3, L7B 1G4, L7B 1G6, L7B 1G7, L7B 1G8, L7B 1G9, L7B 1H1, L7B 1H2, L7B 1H3, L7B 1H4, L7B 1H5, L7B 1H6, L7B 1H7, L7B 1H8, L7B 1J1, L7B 1J2, L7B 1J3, L7B 1J5, L7B 1J6, L7B 1J7, L7B 1J8, L7B 1J9, L7B 1K1, L7B 1K2, L7B 1K3, L7B 1K4, L7B 1K5, L7B 1K6, L7B 1K8, L7B 1K9, L7B 1L1, L7B 1L2, L7B 1L3, L7B 1L4, L7B 1L5, L7B 1L6, L7B 1L7, L7B 1L8, L7B 1L9, L7B 1M1, L7B 1M2, L7B 1M3, L7B 1M4, L7B 1M5, L7B 1M6

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Clarke Basement Systems service area
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