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

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 Newcastle
Crawl Space CleanSpace® Encapsulation System Installed for Moisture Control in Newcastle, ON

Crawl Space CleanSpace® Encapsulation System Installed for Moisture Control in Newcastle, ON

Before After
Crawl Space CleanSpace® Encapsulation System Installed for Moisture Control in Newcastle, ON Crawl Space CleanSpace® Encapsulation System Installed for Moisture Control in Newcastle, ON

Crawl spaces are known to be dark, muggy, and often places we homeowners wouldn’t choose to go to unless completely necessary. However, many homeowners don’t understand how essential a crawl space is to the rest of the home. Your crawl space is a buffer between your home and the wet earth below. Unfortunately, as your crawl space works to protect your home, it can also collect too much humidity from water collection.


Newcastle, ON, homeowners were experiencing a muggy stench lingering around. System Design Specialist Mark Dougherty recommended our CleanSpace® solution. Installed by Foreman Dave Jackson, he was able to encapsulate the area that would provide numerous benefits for the space. After they were done, the homeowners could not believe how immaculate and bright their crawl space looked! Not to mention the immediate improvement of air quality throughout the whole household.

PolyLevel® Injection Improves Step Height in Newcastle, ON

PolyLevel® Injection Improves Step Height in Newcastle, ON

Before After
PolyLevel® Injection Improves Step Height in Newcastle, ON PolyLevel® Injection Improves Step Height in Newcastle, ON

Using our patented PolyLevel® Injection we lifted this backyard patio slab on grade, 4 inches which prevented the slab from sloping towards the house,  it now slopes away from the house. We also decreased the step height from 11 inches to 7 inches.

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 & Crawl Space Vapor Barrier Installations in Newcastle

Best contractor I have ever dealt with (and I’ve dealt with a lot)! Fantastic experience from start to finish -...
Happy Customers Surrounding Newcastle, ON
Work Requests

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Reviews From Newcastle
Testimonials From Newcastle
Jarod arrived on time, and when he left didn't leave any evidence he was there...
Testimonial by Bonnie B. from Newcastle, ON
Pleased with the whole system since installation several years ago.
Testimonial by Dave D. from Newcastle, ON

Basement Waterproofing Experts Serving Newcastle, 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 Newcastle 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 Newcastle 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 Newcastle 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 Newcastle
A homeowner contacted Clarke Basement Systems, concerned about the musty smell coming from their crawl space. System Design Specialist Mark Dougherty...
Fixing a major issue just for another one to pop up is frustrating, and for a homeowner in Newcastle, Ontario, this was the issue he was dealing...
Most crawl spaces across Ontario have one thing in common: high humidity. Something called the stack effect creates excess moisture in crawl spaces,...
Job Stories From Newcastle, ON
Crawl Space Encapsulation System in Newcastle, ON

Homeowners in Newcastle, ON, needed help with the high moisture levels in their crawl space. They noticed a damp feeling in the air of their main floor and a musty smell. System Design Specialist Mark Dougherty checked the area and indicated that there needed to be a moisture barrier to prevent further wood rot or mould growth. Installation Foremen Dave Jackson set up our CleanSpace® so that the ground moisture would not be able to vapourize into the crawl space anymore. Since 40% of the air on the main floor comes from the crawl space below, the homeowners noticed a huge difference in the smell and overall air quality!


Call us today to look after your crawl space and improve the air for you and your whole family.

Crawl Space Encapsulation System in Newcastle, ON - Photo 1
Leaking Foundation Repaired with FlexiSpan in Bowmanville, ON

Tyler S. of Bowmanville, ON found that his foundation had developed a leaky crack, putting his home at risk of property damage and potential health hazards. Tyler understood that ignoring the problem would only cause it to get worse, so he began to search for a certified expert that would be able to help. His query led him to Clarke Basement Systems.


Dale Coville came to Tyler’s house to inspect the issue and to find the best solution for his individual needs. He recommended the installation of the FlexiSpan Interior Waterproofing System to remediate the leaking wall crack. Primary Foreman Fitz Wilks oversaw the installation process, ensuring that the wall crack was effectively fixed. Tyler was excited about the results, especially the peace of mind knowing that moisture would no longer put his foundation at risk.

Bowmanville, ON Crawl Space Repaired with CleanSpace and CactusBoard

When Mark and Mandy M. discovered that their Bowmanville, ON home was suffering from moisture intrusion in the crawl space, they knew the healthfulness of their home was at risk. Mark and Mandy started looking for a reputable contractor to help them solve this problem, and they were guided to Clarke Basement Systems.


Roy Warren met the couple at their home to assess the problem and to discuss potential options for remediation. After diagnosing the crawl space, Roy determined that the best solution would be the installation of the CleanSpace Crawl Space Encapsulation System, combined with the CactusBoard Drainage System. Primary Foreman Fitz Wilks and his team worked quickly and efficiently to install the products within a single day. Mark and Mandy can now enjoy a safe and healthy crawl space for years to come.


CleanSpace and WaterGuard Solve Bowmanville, ON Basement’s Water Problems

When Steve S. of Bowmanville, ON discovered his foundation was leaking, he knew it needed immediate attention otherwise the problem would only intensify. A crack in the foundation wall had created a moisture issue that needed remediation, so he contacted the experts at Clarke Basement Systems for help.


Rob Trevisan met with Steve to inspect his foundation and basement areas, accurately diagnosing the issues present. Rob recommended the installation of the WaterGuard drainage system and the CleanSpace wall membrane to control the moisture, and also suggested the FlexiSpan foundation crack repair system to deal with the leaking foundation wall crack. Primary Foreman Fitz Wilks oversaw the installation of these products, creating a lasting solution to Steve’s moisture problem.

Work Requests From Newcastle, ON
Project Location: Newcastle, ON
Currently, my basement is leaking and I'm sure its from multiple places. The house is 110 years old and the basement is unfinished. There is a sump pump and it looks like the previous owners put in some very lackluster drainage. Water still floods sections of the basement when there's heavy rain falling or thawing. I want to know what options I have if we decide to tackle this issue. Repairing cracks, or if there are too many, expand the drainage to do a proper job.
Project Location: Newcastle, ON
I have water seepage in my unfinished basement. There appears to be a small crack right were there floor meets the wall. My home is about 5 years old. Poured concrete foundation. Would need to have the repair done from the inside if possible (lots of landscaping outside)
Project Location: Newcastle, ON
I have had water in my basement and need it repaired as well as need to install a sump pump
Project Location: Newcastle, ON
45 by 27 ft house. Cinder block foundation . 2 wall getting pushed inside , alsonneed water proofing all four sides.
Project Location: Newcastle, ON
I have water coming in at the very bottom of the basement wall and this is only happens when it rains really heavy and one section in the basement only. Thanks and hope you can help me solve this problem.
Project Location: Newcastle, ON
We recently had water damage due to water pools forming under the laminate flooring in our basement. A clean up crew has since removed all the flooring product and affected drywall areas for mould clean up.
Project Location: Newcastle, ON
I have some water leakage in basement after overnight heavy rains.
Project Location: Newcastle, ON
Hi, Can you pls provide me a quote for a crack leaking in an unfinished basement? Thank you! Queenie.
Project Location: Newcastle, ON
We are having a flooded basement anytime it thaws outside.
Project Location: Newcastle, ON
Need a quote on 3 foundation cracks as soon as possible
Project Location: Newcastle, ON
Leak in basement
Project Location: Newcastle, ON
Need to replace damaged vapour barrier (Lots of holes) covering dirt floor crawl space. Average height is 3'-4'. Approx size 50' x 20'.
Project Location: Newcastle, ON
Slight water seepage in the basement. The laminate flooring is getting bulged.
Project Location: Newcastle, ON
Our basement is flooded. Would like a quote asap to have it fixed.
Project Location: Newcastle, ON
Looking to get vapour barrier fixed or replaced. House is in Wilmot Creek, with approx. 3ft crawl space, also furnace is down there.
Project Location: Newcastle, ON
When the builder put drainage tiles around the new house across the road, I think the water come to my house. I now smell foul odour from the crawl space.
Project Location: Newcastle, ON
Have a visible crack in the foundation that is letting in water
Project Location: Newcastle, ON
Basement leaks
Project Location: Newcastle, ON
Basement leaking, require estimate. leaki is in unfinished area of basement
Project Location: Newcastle, ON
Would like an estimate on relevelling and replacing the plastic in our crawl space, as well as adding insulation in the ceiling of the same area. Thanks
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