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Reviews From Alton
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

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

Alton's Professional Basement & Crawl Space Structural Repairs

Happy Customers Surrounding Alton, ON
Work Requests

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Basement Waterproofing Experts Serving Alton, 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 Alton 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 Alton 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 from under your house. 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
Job Stories From Alton, ON
Unreliable Sump Flooded This Basement Regularly! Alton, ON

A customer in Alton, ON, had a water issue in their basement. They had a foundation crack on the back wall of the basement and an untrustworthy sump system with no battery backup. This was a problem because the crack was leaking water into the customer’s basement and the sump could not keep up with the amount of water it was receiving. When the power went out, the customer’s water levels rose above the floor level! This situation affected the customer’s quality of life, peace of mind, the value of the home and mold was even beginning to grow!

The customer called Clarke Basement Systems and booked an appointment with our Waterproofing Specialist, Ben Wallis. Ben isolated the issue and developed a solution to keep the basement permanently waterproofed. Installation technician Mark Dougherty installed one FlexiSpan™ wall crack repair inside of the basement, which is permanent. Additionally, the sump system was replaced with one Zoeller™ Sump Pump and an UltraSump™ battery backup. The wall crack repair system seals the crack and provides a secondary drainage strategy – groundwater can never get to the floor again for the lifetime of the home. The Zoeller primary sump pump removes water from the sump liner and when the power is out the UltraSump™ battery backup system takes over and removes the water from the sump liner. 

The customer was satisfied because the FlexiSpan™ wall crack repair system stopped the leak. It also carries a lifetime, nationally-backed warranty that is fully-transferable with the title of the home. Additionally, the sump equipment installed gave the homeowner peace of mind that the new equipment could keep up with the amount of water flowing into the sump system and the battery backup would take care of business when the power goes out. 

Work Requests From Alton, ON
Project Location: Alton, ON
We have a finished basement that has water coming in at several spots after heavy rains or snowmelts.
Project Location: Alton, ON
I have a 6 ft high basement/crawl space which houses a furnace, water heater and softener. There is water leakage and draining issues. Also, some possible mold and mildew.
Project Location: Alton, ON
I would like a written estimate for some weeping tile repairs. Thanks
Project Location: Alton, ON
Would like to have the triple safe sump pump system installed.
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