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 Richmond Hill
Leveling a Pool Deck in Richmond Hill, ON

Leveling a Pool Deck in Richmond Hill, ON

Before After
Leveling a Pool Deck in Richmond Hill, ON Leveling a Pool Deck in Richmond Hill, ON

Using our PolyLevel® Injection, we were able to lift this pool deck so that it would be level with the concrete coping and remove numerous trip hazards.


Wet Basement Threatens Resident's Safety in Richmond Hill, Ontario

Wet Basement Threatens Resident's Safety in Richmond Hill, Ontario

Before After
Wet Basement Threatens Resident's Safety in Richmond Hill, Ontario Wet Basement Threatens Resident's Safety in Richmond Hill, Ontario


A house can be more than just a family home. They act as businesses, apartments and sometimes even specialized care facilities. No matter what the building is used for, it must remain safe and useable.

A customer in Richmond Hill, Ontario, operates a home for developmentally disabled adults. Safety is an essential aspect of keeping the facility running smoothly, but unfortunately, they were dealing with a water issue in the basement. This was threatening the home and its residents with the chance of mould growing in the basement, and their belongings were often found to be wet.

Looking for a solution before the winter began, the customer reached out to Clarke Basement Systems. He met with System Design Specialist Ben Wallis and they inspected the basement and cold room. Ben discovered water was seeping in from the wall and floor joint and designed a system to keep the basement totally dry. 

Foreman Jose Martinez started by digging a pit for the SuperSump® Pump. When the pump is below the grade of the floor it catches water from the WaterGuard® Drain and drainage stone, pumping it out of the basement. Jose installed the SuperSump® with an UltraSump™ Battery Backup for extra peace of mind.

Jose then encapsulated the area with CleanSpace® Vapour Barrier, and Foreman Don Clarke installed a SunHouse® Shallow Well to let in light and help with drainage.

The customer and the home’s residents are happy that their basement and cold room is dry. The house is once again safe, and the residents can live without the worry of a flood in the basement.

Full Waterproofing System Prevents Mould in Richmond Hill, Ontario

Full Waterproofing System Prevents Mould in Richmond Hill, Ontario

Before After
Full Waterproofing System Prevents Mould in Richmond Hill, Ontario Full Waterproofing System Prevents Mould in Richmond Hill, Ontario

An essential job of a house is to keep its residents safe. Whether it’s a stable roof, insulated windows, or a dry basement, every part of our home plays a role in its safety. When something is causing you to lose trust in your home, it’s time for a change.

A customer in Richmond Hill, Ontario, runs a home for developmentally disabled adults. He noticed water was entering his basement, and it was taking its toll. A musty smell was present, and the homeowner was concerned about the growth of mould. He reached out to Clarke Basement Systems in search of a solution. 

System Design Specialist Ben Wallis knew exactly what to do in this situation. He inspected the home and designed a waterproofing solution to protect the customer's home and ensure the health of its residents.

Foreman Jose Martinez started by excavating the perimeter of the basement and cold room before installing our WaterGuard® Drain System. He encapsulated the area with CleanSpace® Vapour Barrier, which funnels water down to the WaterGuard®. He also installed a SuperSump® Pump and UltraSump® Battery Backup. Since exterior drainage was also an issue, Foreman Don Clarke installed a SunHouse® Shallow Well Window.

The customer is happy knowing he no longer has to worry about mould growing in his basement. His home is protected from the effects of moisture, and he has peace of mind knowing any water that does make it into the basement will be removed efficiently.

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

Experienced Basement Waterproofing & Concrete Raising in Richmond Hill, ON

Happy Customers Surrounding Richmond Hill, ON
Work Requests

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Reviews From Richmond Hill
Testimonials From Richmond Hill
Very satisfied. We were very happy...!
Testimonial by Homeowner from Richmond Hill, ON
...The office was a pleasure to deal with... Would recommend this company highly.
Testimonial by Homeowner from Richmond Hill, ON
I rate the service as 5 out of 5!
Testimonial by Laura J. from Richmond Hill, ON

Professional Basement Waterproofing and Sump Pumps in Richmond Hill, ON

At Clarke Basement Systems we put customer service first and are proud to serve our area. Our team of trained technicians use only high quality materials from the best manufacturers in the business to ensure that you get only the best results. We want to find the solution that will work best for you!

For problems in your basement's waterproofing, you need the experts at Clarke Basement Systems to come up with a solution that will be high quality and long lasting. Most waterproofing issues are caused by leaky pipes, sump pump failure or even flooding during heavy rainfall. We have the patented products to turn an unsafe, dirty basement into a clean, beautiful part of your home! Not sure if you have a waterproofing problem? Some of the major indicators are:

  • Wet or damp basement floor
  • Leaking or damp basement walls
  • Pooling or standing water
  • Crystaline deposit on concrete surfaces
  • Musty odors
  • Condensation
  • Leaky basement windows

If you want absolute peace of mind when it comes to your basement, then you need the TripleSafe sump pump. The TripleSafe sump pump is equipped with a primary pump, a secondary pump, and a third, battery operated backup pump to ensure that even if disaster strikes, you can be assured that you basement is protected. 

Expert Foundation Repairs and Concrete repair in Richmond Hill, ON

Many of the foundation problems that homes face look larger and more complex than they might actually be. The main reason for most foundation problems is shifting, weakened soil that can no longer support the weight of the structure. Some of the major signs of foundation problem in you home are:

  • Uneven or sloping floors
  • Cracks in the floor, interior wall, or exterior wall
  • Inward bowing walls
  • Sagging floors over a crawl space
  • Hard to open windows and doors
  • Tilting chimneys
  • Street creep

If you have cracked, uneven concrete on your floors, sidewalks, or patios, then you need the professionals at Clarke Basement Systems to install our PolyLevel Concrete lifting, NexusPro cracked concrete repair, and SealantPro concrete sealing solutions.

The PolyLevel solution is injected under the concrete to raise it to the right height, making it a faster, easier, and more cost-effective solution, not to mention it lasts longer than traditional methods. 

NexusPro is applied to effectively seal concrete cracks and joints. This cracked concrete repair solution is ultra-durable and won't deteriorate in extreme temperatures, fluctuating weather patterns, exposure to UV rays, and more.

Our SealantPro concrete sealing solution guards against oil, gasoline, liquids, and debris to effectively extend the life of your slabs by 3 to 5 times overall in just one quick application. SealantPro is versatile and can secure your concrete regardless if it was just repaired or newly installed.

Crawl Space and Mold Repairs in Richmond Hill, ON

As a part of the house that can often be neglected, a crawl space can become a breeding ground for mold, mildew, and even small animals or other pests if left unchecked. When this happens, trust the experts at Clarke Basement Systems to install vapor barriers, thermal insulation and dehumidifiers to turn your dirty, musty crawl space into a healthy, energy-efficient space. 

Major signs of a crawl space problem:

  • Sagging floors
  • Condensation
  • Mold
  • Wood rot
  • Foundation problems

Mold can be a silent killer in your home which is why you should have your home inspected regularly. Wood rot can also be a huge problem because when left unchecked, it can eat through wood, making it incapable of holding up the floor above the crawl space. We can install crawl space jack posts to correct sagging beams and keep your home a safer place. 

Clarke Basement Systems is committed to customer service because we are proud to serve our area. Let our team of knowledgeable staff and skilled technicians find a solution that will work for both your home and your budget. Call us today for a free estimate!


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Case Studies From Richmond Hill
Having something hanging over your head can take a toll after a while. The thought never entirely fades away, and you're left with the anxiety of...
When you think of a cold room, you typically think of that small, musty room in your basement. You’ve never been able to use the space for...
Walking into your basement and finding water damage is a worst-case scenario. It can be costly and difficult to find where the water is coming in,...
Job Stories From Richmond Hill, ON
Groundwater Seepage in Richmond Hill, ON

Clarke Basement Systems provides a lost-lasting solution for your leaking basements. Water had been seeping in through floor-wall joints around our customers home in Richmond Hill, Ontario. The water had damaged their stored items affecting their standard of living.  


After meeting with System Design Specialist, Ben Wallis, he proposed solution for their floor-wall joint seepage issue. Foreman, Jose, and his talented crew installed:

  • ThermalDry® Wall Membrane to direct water to the interior drainage system
  • WaterGuard® Drainage System controls the groundwater seepage.
  • SuperSump


Our customer is happy to know that our systems will protect their basement from water seepage. Thanks to Clarke Basement Systems their peace of mind is restored!


Heaving Foundation in Garage, Richmond Hill, ON

A home in Richmond Hill, Ontario, had a heaving foundation in the Garage because of frost and was sinking due to improper soils. This was damaging the home's foundation and causing cracks in bricks. The homeowner was worried the Foundation wouldn't hold the house from falling down.

The customer called Clarke Basement Systems. Claude Mathieu explained the solution for the home. Don Clarke and the team installed Push Piers, drainage membranes, insulation and filter stone. The piers stop the sinking and the drainage membranes and insulation is to protect against frost damage. Proper drainage of ground water directed away from the homes foundation and the insulation makes it hard for frost damage.

The customer was satisfied that they no longer have to worry about damage to the foundation.

Heaving Foundation in Garage, Richmond Hill, ON - Photo 1Heaving Foundation in Garage, Richmond Hill, ON - Photo 2Heaving Foundation in Garage, Richmond Hill, ON - Photo 3
Work Requests From Richmond Hill, ON
Vicinity of Lakeland Crescent in Richmond Hill
Rotting joists underneath floors. House has large crawl space and no basement.
Vicinity of Regatta Ave in Richmond Hill
Wet basement
Vicinity of Taro Court in Richmond Hill
Crack where brick meets the foundation where exposed at the back half of the side of the house. The house is on a decline (lookout basement - not quite a walkout)
Vicinity of Laurier Ave in Richmond Hill
I have a sump pump that is over 10 years old it is very noisy when it runs, there is no alarm or back up in the event of an issue. My basement is finished and I want to ensure their are no risks by upgrading the system. It's also open so you can see the standing water it's not an enclosed system.
Vicinity of Waterton Crescent in Richmond Hill
We have a crack in the basement interior that needs to be filled in. Also visible from the outside to be repaired. Would like to get an estimate on cost to repair.
Vicinity of Black Willow Crt in Richmond Hill
Wet Basement.
Vicinity of Bowkett Drive in Richmond Hill
Small crack in foundation is leaking small amounts of water under the stairs in the basement. Looking for a quote for injection repair.
Vicinity of Bishopsbridge Crescent in Richmond Hill
Water in basement came from baseboard and the bottom of the wall
Vicinity of Neal Dr in Richmond Hill
My basement is leaking. I know the area but I don't know if it is foundation or window
Vicinity of Harrygan Crescent in Richmond Hill
Have a crack in block foundation at the back of our home that occasionally leaks when heavy rain occurs. Water come in a two different locations. Also have cracking and minor settling of concrete garage floor that could use lifting/leveling.
Vicinity of Silver Linden Dr. in Richmond Hill
Need to waterproof the basement
Vicinity of North Lake Rd in Richmond Hill
I have a winter block foundation, there are cracks in it. The current house is a single story, I am looking to renovate and add a second story. Can you give me an estimate to repair the basement walls? Please advise, Thank you
Vicinity of Peninsula Crescent in Richmond Hill
Condensation developing on metal ceiling of cold room; amount of condensation on ceiling which drops to the ground has recently increased.
Vicinity of Painted Rock Ave in Richmond Hill
We have a crack in the wall foundation of our basement due to the excessive rainfall we received on January 11th. We are looking for an internal solution only at this time. The crack is also on the exterior of our house. We would not mind an opinion on the exterior.
Vicinity of Theobalds Circle in Richmond Hill
Cracks in foundation resulting in Water leaking into the basement.
Vicinity of White Lodge Cresent in Richmond Hill
Garage floor cracked and sinking
Vicinity of Gardiner Crescent in Richmond Hill
Leak in the basement
Vicinity of Lexi in Richmond Hill
Vicinity of Mill Street in Richmond Hill
Water seepage into laundry basement. Currently flowing slowly into drain. Thank you.
Vicinity of Alsace Road in Richmond Hill
I believe there is a crack in my foundation and have water leaking into my basement
Serving the following Richmond Hill, ON postal codes
L3P 3J4, L3T 3M9, L3T 3N1, L3T 3N3, L3T 4A2, L3T 4A5, L3T 4S5, L3T 7S8, L4B 0A1, L4B 0A2, L4B 0A3, L4B 0A4, L4B 0A5, L4B 0A6, L4B 0A7, L4B 0A8, L4B 0A9, L4B 0B1, L4B 0B2, L4B 0B3, L4B 0B4, L4B 0B5, L4B 0B6, L4B 0B7, L4B 0B8, L4B 0B9, L4B 0C1, L4B 0C2, L4B 0C3, L4B 0C4, L4B 0C5, L4B 0C6, L4B 0C7, L4B 0C8, L4B 0C9, L4B 0E1, L4B 0E2, L4B 0E3, L4B 0E4, L4B 0E5, L4B 0E6, L4B 0E9, L4B 1A1, L4B 1A2, L4B 1A3, L4B 1A4, L4B 1A5, L4B 1A6, L4B 1A7, L4B 1A8, L4B 1A9, L4B 1B1, L4B 1B2, L4B 1B3, L4B 1B4, L4B 1B5, L4B 1B6, L4B 1B7, L4B 1B8, L4B 1B9, L4B 1C1, L4B 1C2, L4B 1C3, L4B 1C4, L4B 1C5, L4B 1C6, L4B 1C7, L4B 1C8, L4B 1C9, L4B 1E1, L4B 1E2, L4B 1E3, L4B 1E4, L4B 1E5, L4B 1E6, L4B 1E7, L4B 1E8, L4B 1E9, L4B 1G1, L4B 1G2, L4B 1G3, L4B 1G4, L4B 1G5, L4B 1G6, L4B 1G7, L4B 1G8, L4B 1G9, L4B 1H1, L4B 1H2, L4B 1H3, L4B 1H4, L4B 1H6, L4B 1H7, L4B 1H8, L4B 1H9, L4B 1J1, L4B 1J2, L4B 1J3, L4B 1J4, L4B 1J5, L4B 1J6, L4B 1J8, L4B 1J9, L4B 1K1, L4B 1K2, L4B 1K3, L4B 1K4, L4B 1K5, L4B 1K6, L4B 1K7, L4B 1K8, L4B 1K9, L4B 1L1, L4B 1L2

our service area

Clarke Basement Systems service area