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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

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
LintelLift Garage Lintel Repair

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
Waterproofing a Cold Room in Newmarket, ON

Waterproofing a Cold Room in Newmarket, ON

Before After
Waterproofing a Cold Room in Newmarket, ON Waterproofing a Cold Room in Newmarket, ON

Did you know your cold room is of high risk of water or moisture damage due to it sitting under your porch? Well, for these homeowners in Newmarket, ON, they wanted to put their cold room to use as well as get rid of the nasty smell that was lingering around in their basement. System Design Specialist Chris Luke showed our customers the possibilities of their cold room and decided to move forward with us. Installation foreman Dustin Biggs and his crew gave this cold room a full-face lift, while effectively waterproofing it and allowing it to control moisture levels. Not long after they finished, the homeowners quickly noticed how much better the basement smelt and began to use it for a proper storage area.

Leaky Cellar Worry Equaled to Dry Cellar Happiness, Newmarket, ON

Leaky Cellar Worry Equaled to Dry Cellar Happiness, Newmarket, ON

Before After
Leaky Cellar Worry Equaled to Dry Cellar Happiness, Newmarket, ON Leaky Cellar Worry Equaled to Dry Cellar Happiness, Newmarket, ON

In Newmarket, Ontario, a small cellar had water seepage issues that worried the homeowner. She didn't want all the stored goods to be affected, and the water had started eating away at some of the wooden beams. She contacted Clarke Basement Systems to have Our System Design Specialist, Ben Wallis, do an inspection and receive our Free Estimate. After scoping out the space, Ben introduced the homeowner to our FlexiSpan® wall crack repair system. This system seals off water from entering the house and contains a one-cell foam strip that channels water to a man-made drain on the floor. The drainage is covered with concrete and safely discharges the water underneath the home. 


The homeowner eagerly agreed to the service. The work area was tight, but Alan Murphy, Installation Specialist, set up the FlexiSpan® with no trouble. The owner went from doubtful to fully trusting in the final result. She was taken aback by how clean the work was and how, with limited space, Alan could repair the wall's fracture. Alan suggested a day or two before having people in the area so the material can cure effectively. This homeowner now has a lifelong, dry cellar.  

Worried Parents Deal with Wet Basement in Newmarket, Ontario

Worried Parents Deal with Wet Basement in Newmarket, Ontario

Before After
Worried Parents Deal with Wet Basement in Newmarket, Ontario Worried Parents Deal with Wet Basement in Newmarket, Ontario

As a parent, you want the absolute best for your children. You provide them with the best education you can and give them a safe, comfortable place to live. But when something gets in the way of that, you do everything in your power to fix it.


A family in Newmarket, Ontario, was dealing with a crack in their basement foundation. Each time it rained. Their six-year-old daughter uses the space, so they wanted to get the repair done correctly.


They reached out to Clarke Basement Systems and met with System Design Specialist Dan Montgomery. Dan was able to put their mind at ease by showing them our FlexiSpan® Repair System, and a date was set for the installation.


Foreman Ali Fereidouni worked hard installing the crack repair system. Polyurethane was injected inside the crack and around the exterior. An additional drain was installed as well.


The family is ecstatic about the final product. They no longer need to worry about their daughter using the space, and they finally have a dry basement.

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]
More Awards

Expert Basement Waterproofing & Foundation Repair Contractor in Newmarket

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
Work Requests

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Reviews From Newmarket
Testimonials From Newmarket
I am absolutely thrilled with the exceptional service provided by Clarke Basement Systems. A few years ago, I...
Testimonial by Phillipe G. from Newmarket, ON
Don and Andrew did a fantastic job turning our musty, damp cold cellar from a place where things went to die...
Testimonial by Jeff S. from Newmarket, ON
I’m always happy to see that there are people out there that you can count on to provide accurate and...
Testimonial by Nick T. 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.

A failing garage lintel can also be a sign of structural settlement. Cracks along the brickwork, sagging, and pulling away from the home are all signs of a failing garage lintel. We offer expert garage lintel repair by installing the patented LintelLift garage lintel repair system.

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
Customers in Newmarket, ON, had a musty, unusable cold room that had the potential to be an excellent storage area. However, before they began...
This cold room in Uxbridge, Ontario was not being vented properly. As a result, the cold room was moist and wet. As we all know, moisture and...
Walking into your home and seeing water on the ground or having a musty odour makes your heart sink. A customer in Eryn, Ontario, was fed up with...
Job Stories From Newmarket, ON
Tight Squeeze Wall Crack Repair, Newmarket ON

In Newmarket, Ontario, a small cellar had a large crack running from the floor to the ceiling. The homeowner didn't think anything of it until a few of the support beams were getting wet and mouldy. This raised concern, so she immediately called the professionals at Clarke Basement Systems, and we had System Design Specialist Ben Wallis go to the home for an inspection. The space was very narrow and was a bit challenging to get through to the crack, but luckily, Ben made it work, and he was able to quote our client effectively. The problem was the home's outside corner. It was holding a lot of water during each rainfall, and with the water not having anywhere to go, it started to crack its way into the cellar leaving a lightning bolt fracture in the wall. The best solution was our FlexiSpan® wall crack repair system that seals the crack and guides excess water to the footing of the wall and into a man-made drain we create. If the water gets blocked off entirely, it will put too much stress on the seal over time and then eventually break through. With Ben's thorough explanation, it was time to get to work. Installation Specialist, Alan Murphy, went to the home and started the job.


Tight Squeeze Wall Crack Repair, Newmarket ON - Photo 1
Increasing the Integrity of a Home's Foundation in Caledon, Ontario

Uneven floors and rotting floor joints are a strong indicator of foundation problems in a home. For Lori, a homeowner in Caledon, getting her foundation’s integrity back to where it should be was so important. She knew who to call.


A System Design Specialist created a long-lasting solution for her crawl space. By installing 12 SmartJack® stabilizers and 2 supplemental beams, the team successfully increased the integrity of Lori’s crawl space. The outcome of the job reassured her she made the right call contacting Clarke Basement Systems!

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
Project Location: Newmarket, ON
We would like to have a foundation problem assessed at a home we are potentially purchasing
Project Location: Newmarket, ON
Block foundation cracks and leaking. Looking for Quote on 59 feet perimeter of exterior basement foundation waterproofing. Also looking for quote on any options of interior waterproofing as alternative to exterior excavation.
Project Location: Newmarket, ON
Hi, our basement flooded on new years and looking to see what needs to be done to waterproof block wall. Insurance is involved and is currently working on remediation and exposing area of concern.
Project Location: Newmarket, ON
Tenant reported basement bedroom carpet close to wall is wet. I am POA of the landlords living upper level. Please let me know if you need to charge inspection fees before coming to do inspection. Thank you.
Project Location: Newmarket, ON
We have a leak in our basement that I am hoping you can help with.
Project Location: Newmarket, ON
Leak in the cold room when raining. Feels damn otherwise.
Project Location: Newmarket, ON
Basement (2) walls are cracked and leak when there is heavy rain. If you can send someone to our address.
Project Location: Newmarket, ON
2 Basement walls need a redo. They are cracked and leak.
Project Location: Newmarket, ON
Cold room is not vented properly and is moist/wet. Quote on waterproofing.
Project Location: Newmarket, ON
We have a bungalow with an unfinished basement. We have a small water leak on three walls. I believe the best way to repair the leak would be from the outside. We could either (A) repair the section of the wall that has the leak or (B) repair the entire wall. There is an air conditioner on one of the walls and a wooden deck on one of the other walls.
Project Location: Newmarket, ON
Cold cellar is wasted space, damp and smelly. Just want to be able to use the space again.
Project Location: Newmarket, ON
Water coming into basement during heavy rainfall
Project Location: Newmarket, ON
We have a basement leak problem and can't find the cause!
Project Location: Newmarket, ON
Leaking water in basement cold-room during heavy raining
Project Location: Newmarket, ON
Several homes in our immediate area have experienced collapse of the attached 2 car garage floor. In our garage, the floor seems okay, but there are cracks along the rebar locations, and it sounds hollow around the perimeter. Also, there are significant cracks in the garage east and west foundation walls (the garage opens to the north). In addition, we have extensive separation of the brick on the west and south walls. What options do you recommend to prevent further damage and stabilize the structure?
Project Location: Newmarket, ON
I have a cold room that is wet and I'd like to be able to use it. Also, the floor in the furnace room has effervescence.
Project Location: Newmarket, ON
There's some cracks on drywall and ceiling in a bedroom above the garage. Garage floor has scooped area.
Project Location: Newmarket, ON
We have a leak in the front wall of the basement that needs to be fixed. You have fixed two previous leaks that occurred in 2014.
Project Location: Newmarket, ON
Foundation concerns and basement water concerns.
Project Location: Newmarket, ON
Need crack in basement wall fixed, getting water in basement.
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