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 Newmarket
Sinking Basement Floor Lift in Newmarket, ON

Sinking Basement Floor Lift in Newmarket, ON

Before After
Sinking Basement Floor Lift in Newmarket, ON Sinking Basement Floor Lift in Newmarket, ON

Our customer's basement floor had sunken over 2 inches stalling their renovation project. To continue their plan, the floor needed to be level. With the help of our team, we injected high-density PolyLevel® to compress the loose soils underneath and raise the concrete. The family can now continue with their renovation project and use the space to its full potential.

Musty Smell Due to Water Seepage in Newmarket, ON

Musty Smell Due to Water Seepage in Newmarket, ON

Before After
Musty Smell Due to Water Seepage in Newmarket, ON Musty Smell Due to Water Seepage in Newmarket, ON

A home in Newmarket, Ontario, had water seeping into the finished basement. The water was coming in through the floor and the wall causing the house to smell musty. Mould was starting to form on the drywall and baseboards, and the homeowner wanted to fix this issue before it got any worse. 

The customer called Clarke Basement Systems, and Ben Wallis explained everything. Luke Haverkort and the team came in and took down all the drywall. They installed ThermalDry® wall membrane on all the walls to keep moisture out and direct any seepage into the newly established WaterGuard® drainage system around the perimeter. This solution allowed the customer a piece of mind knowing their water issues are gone and the musty smell would disappear. Now they can renovate the basement knowing it will stay dry. 


Full Perimeter WaterGuard® System in Newmarket, ON

Full Perimeter WaterGuard® System in Newmarket, ON

Before After
Full Perimeter WaterGuard® System in Newmarket, ON Full Perimeter WaterGuard® System in Newmarket, ON

In some basements, there are many obstacles to keep in mind while waterproofing. This home in Newmarket had a bit of a challenge with the water softener being so close to the walls we needed to fix. We installed a WaterGuard® around the obstacles successfully.

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]
Readers Choice Award Winner 2015
The Community of Markham has chosen our business as the winner of the annual Markham Economist & Sun Reader’s Choice... [Read more]
More Awards

Expert Basement Waterproofing & Foundation Repair Contractor Serving Newmarket, ON

You were professional, fast and very accommodating to my needs. I have never seen anything like this before, and you...
Happy Customers Surrounding Newmarket, ON
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Reviews From Newmarket
Testimonials From Newmarket
I would class my experience as 10/10.
Testimonial by Claire M. from Newmarket, ON

Newmarket, ON Basement Waterproofing & Crawl Space Repair

Crawl space encapsulation in Newmarket, ON

The surfaces of this dirt crawl space were covered with the CleanSpace Vapor Barrier for superior protection against moisture.

Many homeowners in the town of Newmarket commute into Toronto every day for work. While they're gone, they shouldn't have to worry about water filling their basement; and yet, with the moderate and consistent precipitation Newmarket receives year-round, basement water problems are a distinct possibility. Clarke Basement Systems is the premiere basement waterproofing company serving Newmarket and the rest of Ontario. In business since 2003, we are the area's trusted source for a dry, clean basement.

If you have significant amounts of water leaking through walls, floors, windows, or hatchways in your basement, you know without a doubt that there is a problem. However, there are many other signs of a basement water issue, such as: 

  • Wet or damp basement floor or standing water
  • Leaking or damp basement walls or windows
  • Crystalline deposits on concrete surfaces
  • Musty odors, condensation, and humidity
  • Sump pump issues

Even if you don't think there's much moisture in your basement, it's best to get rid of it before mould or rot develops. Clarke Basement Systems offers a wide variety of products to ensure the safety and cleanliness of your basement. From sump pumps to drains and dehumidifiers, all of our patented, warrantied basement waterproofing products are designed to get a specific job done.

Along with our basement waterproofing services, we also offer crawl space encapsulation and waterproofing to prevent discomfort and structural decay in this space. The key to a successful crawl space encapsulation is the proper installation of a moisture barrier, which seals the area from the world outside and prevents moisture from entering. This system has additional benefits as well, as it keeps out pests and can protect your home from fluctuating temperatures.

Foundation Repair in Newmarket

Foundation repair is crucial for maintaining the safety and value of a home, and it must be completed by a professional contractor. Clarke Basement Systems has professional foundation specialists trained by  Supportworks, the leading network of foundation contractors, ready to solve all of your property's problems. We will thoroughly inspect your property to produce a correct diagnosis of your needs.

There are many things we look for when inspecting a property for foundation disrepair. Some common signs include:

  • Sagging floors and floor cracks
  • Wall cracks
  • Bowing walls
  • Sticking doors and windows
  • Tilting chimneys

The way that these signs present themselves often makes the underlying problem very obvious. For example, stair-step cracking along exterior brickwork is usually a sign of foundation settlement, while upward-sloping cracks in the middle of floors can mean foundation heave. No matter what's wrong with your foundation, we have the products needed to restore stability to your home. Foundation piers, wall anchors and braces, and crawl space jacks are just some of the systems we can install on your property.

Concrete Lifting, Concrete Crack Repair, & Concrete Sealing in Newmarket

Cracked, sinking sidewalk in Newmarket

Big cracks in sidewalks like the one shown above are a sign of concrete slab settlement.

If foundation settlement isn't your problem, concrete slab settlement might be. Have you noticed cracks or uneven floors along your driveway, sidewalk, patio, or garage? These are common signs of slab settlement, which detract from the attractiveness of your property and can cause tripping hazards. This is why we offer reliable concrete leveling, concrete crack repair, and concrete sealing solutions to combat these issues and to secure your home's image, safety, and value!

Clarke Basement Systems uses PolyLevel for local concrete lifting needs. This system consists of a polyurethane foam which expands after it is injected beneath the concrete. Just 15 minutes after its installation, the slab will be lifted, level, and ready for normal use!

We also use NexusPro as an effective concrete sealant for concrete cracks and joints. If you have cracked concrete steps, walkways, patios, and more, then NexusPro can effectively seal them while resisting UV rays, fluctuating temperatures, extreme weather patterns and more to assure their safety and image for years to come.

After utilizing our concrete repair solutions, consider sealing your concrete with SealantPro. In just one quick application, SealantPro can extend your concrete's life by 3 to 5 times overall and guard against oil, gasoline, liquids, and other debris. 

Clarke Basement Systems offers free estimates for all of our basement, crawl space, foundation, concrete lifting, and concrete repair services. If you're concerned about the state of your home, we will schedule an appointment convenient to you. Contact us today for a free estimate in Newmarket!

Case Studies From Newmarket
When you walk into your basement, the last thing you want to be faced with is a musty smell. It’s impossible to miss, and usually indicates a...
It kills our plants, lets us know that winter is around the corner, and is a sign to put the lawnmower away and warm up the snowblower. While frost...
The dense, elastic clay of the Oak Ridge Moraine surrounding the foundation of this house with no below-grade drainage or insulation has caused the...
Job Stories From Newmarket, ON
Drying Out a Newmarket, ON Basement

Harry D. noticed that his house foundation was leaking water into his basement, resulting in bad odours, forming mould and damage to stored items. Looking to resolve this problem, Harry contacted Clarke Basement Systems for a permanent fix.

The solution for this wet basement included the use of our patented SuperSump® Premier Sump Pump System, UltraSump® Battery Back-Up System, WaterGuard® Below-Floor Drain and ThermalDry® Wall Membrane. These systems worked together to drain out incoming water and expel it away from the home while protecting the basement and contents stored, while simultaneously eliminating mould and musty odours.

Thanks to the installation of these products, Harry D. does not have to think twice about a wet basement as it has protection from the best systems available. Clarke Basement Systems is pleased to have been able to assist this Newmarket, ON homeowner with ALL of his waterproofing needs.

Drying Out a Newmarket, ON Basement - Photo 1Drying Out a Newmarket, ON Basement - Photo 2Drying Out a Newmarket, ON Basement - Photo 3
Wall Crack in Newmarket, ON

Keeping your basement dry is vital to prevent water damage and mold growth. Your basement is the perfect area for mold to form and later become airborne. Our customer in Newmarket, Ontario, badly needed several leaking cracks in their basement to be fixed. The water seepage had made the basement wet affecting our customer's peace of mind. 


Ben Wallis, System Design Specialist, spoke with the homeowner and provided a solution to eliminate their leaking crack issue. Ben suggested that a FlexiSpan Wall Crack Repair System be installed to permanently waterproof the crack. Foreman, Mark began the process by sealing the foundation with a polyurethane polymer to fully waterproof the foundation. Mark added a secondary drainage system to direct water into the Dry Well for extra protection.


Our customer is pleased to have their basement protected, thanks to Clarke Basement Systems! Their peace of mind is at ease, and the home's value is no longer affected. The basement can now be used to store their personal items without the worry of water damage and mold.

Musty Smell Due to Water Seepage, Newmarket, ON

A home in Newmarket, Ontario, had problems throughout the finished basement. Water had been seeping up through the floor causing the house to smell musty. Mold was starting to form on the drywall and baseboards and the homeowner wanted to fix this issue before it go any worse. 

The customer called Clarke Basement Systems and Ben Wallis explained everything that would need to be done to the home. Luke Haverkort and the team came in and installed ThermalDry wall membrane on all the walls to keep moisture out and direct any seepage into the newly installed WaterGuard drainage system around the perimeter. This allowed the customer a piece of mind knowing their water issues are gone and the musty smell would disappear. 


Work Requests From Newmarket, ON
Vicinity of Srigley St in Newmarket
Water in basement wanting a quote to get fixed from inside
Vicinity of Valley Green Trail in Newmarket
Vicinity of Emma Rd in Newmarket
We have a crawl space and we are finding that areas of our floor are starting to bounce and sag. We would like to find out the cause of this. There is also no vapour barrier down there, so we would like a quote for that as well.
Vicinity of Primrose Lane in Newmarket
We have a crack in the basement wall that sometime leaks
Vicinity of Towercrest Drive in Newmarket
Hi, I have an old repaired crack that started to leak between floor and wall again. I would like to get an estimate on repairing the crack and possibly what exterior waterproofing would cost. Or if you have any other ideas. The wall in question is the the wall where all utilities are located.
Vicinity of Kingston Rd in Newmarket
-One meter crack in foundation in basement half way down to the floor -Open Concept
Vicinity of Schaeffer Outlook in Newmarket
Our garage foundation is heaving during the winter and our garage floor has dropped in one corner. The problem looks very similar to some of the pictures on your website.
Vicinity of Don Mor Dr in Newmarket
Leaking basement, not sure how getting in. Heavy rain and snow/ground thaw creates resting water in 2 parts of my 80% finished basement. No sump pump currently. Had outside corner parged/blue skinned in 2015
Vicinity of Septonne Ave in Newmarket
We had a minor flood in the basement and think it's an issue with the foundation...we believe we need weatherproofing done on the outside. We are thinking the length of the back of the house needs to be dug up and have the weatherproofing done.
Vicinity of Sunnypoint Dr. in Newmarket
Today 2/4/2019 I discovered that my basement is wet, I first found that there was water in the floor of our washroom in the basement. In one area of the basement, the carpet is wet and when I pulled the floor molding and poke my finger in, I can feel the water. My question is, do you charge for an inspection and for the quote? because I am planning to have a second opinion where I can compare and choose from.
Vicinity of Kn in Newmarket
Hi there, I have a crack in my basement and there is a space between a wall and floor in the basement, just wanted to get an estimate of the cost. Thanks, Adel
Vicinity of Herridge Circle in Newmarket
I have an exterior attached garage. One poured cement wall is about 5 feet high. The 2x4s on this wall are leaning outward by about a quarter inch. The 2x4s are also bowing. Hope you can help. Bob
Vicinity of Dixon Blvd in Newmarket
We have a leak in serveral location on our basement. I believe the water is coming through the tie rods in the concrete. Looking for an estimate on exterior waterproofing.
Vicinity of Sparrow Road in Newmarket
Cracks in basement foundation - garage
Vicinity of DENNIE AVE in Newmarket
Have mould on baseboards and wet floor after big rainfall last week. Please come by to quote work. Thank you.
Vicinity of Grant Blight in Newmarket
Would like some seeping cracks repaired
Vicinity of Alexander Road in Newmarket
Water coming in basement when it's a good downpour
Vicinity of Tom Taylor Cres in Newmarket
There is a little bit of water that seems to becoming from the corner of my basement.
Vicinity of Emerson Way in Newmarket
We have 3 units in our co-op with foundation leaks and would like someone to look at them for a quote
Vicinity of Widdifield Ave in Newmarket
We had water leak in the corner of our basement last night
Serving the following Newmarket, ON postal codes
L3X 0A1, L3X 0A2, L3X 0A3, L3X 0A4, L3X 0A5, L3X 0A6, L3X 0A7, L3X 0A8, L3X 0A9, L3X 0B1, L3X 0B2, L3X 0B3, L3X 0B4, L3X 0B5, L3X 0B6, L3X 0B7, L3X 0B8, L3X 0B9, L3X 0C1, L3X 0C2, L3X 0C3, L3X 0C4, L3X 0C5, L3X 0C7, L3X 0C8, L3X 0C9, L3X 0E1, L3X 0E2, L3X 0E3, L3X 0E4, L3X 0E6, L3X 0E8, L3X 0E9, L3X 0G1, L3X 0G2, L3X 0G3, L3X 0G4, L3X 0G5, L3X 0G6, L3X 0G7, L3X 0G8, L3X 0G9, L3X 0H3, L3X 0H4, L3X 0H5, L3X 0H6, L3X 0H7, L3X 0H8, L3X 0H9, L3X 0J1, L3X 0J2, L3X 0J3, L3X 0J4, L3X 0J5, L3X 0J6, L3X 0J7, L3X 1A3, L3X 1A4, L3X 1A5, L3X 1A6, L3X 1A7, L3X 1A8, L3X 1A9, L3X 1B1, L3X 1B2, L3X 1B3, L3X 1B4, L3X 1B5, L3X 1B6, L3X 1B7, L3X 1B8, L3X 1B9, L3X 1C1, L3X 1C2, L3X 1C3, L3X 1C4, L3X 1C5, L3X 1C6, L3X 1C7, L3X 1C8, L3X 1C9, L3X 1E1, L3X 1E3, L3X 1E4, L3X 1E5, L3X 1E6, L3X 1E7, L3X 1E8, L3X 1E9, L3X 1G1, L3X 1G2, L3X 1G3, L3X 1G4, L3X 1G5, L3X 1G6, L3X 1G7, L3X 1G8, L3X 1G9, L3X 1H1, L3X 1H2, L3X 1H3, L3X 1H4, L3X 1H5, L3X 1H6, L3X 1H7, L3X 1H8, L3X 1H9, L3X 1J1, L3X 1J2, L3X 1J3, L3X 1J4, L3X 1J5, L3X 1J6, L3X 1J7

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