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Reviews From Lindsay
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
PolyLevel Concrete Lifting & Leveling
ShotCrete Wall Restoration

Company Awards
Clarke Basement Systems has been awarded the HomeStars Best of 2016 award which we are very proud of.... [Read more]
The Community of Markham has chosen our business as the winner of the annual Markham Economist & Sun Reader’s Choice... [Read more]
Ratings are calculated based on consumer-review websites and blogs, social networks, business rating services and other award information to determine... [Read more]
More Awards

Your Proven Lindsay, ON Foundation Repair & Basement Waterproofing Company

Happy Customers Surrounding Lindsay, ON
Work Requests

Click the icons to see what our customers had to say.

Basement Waterproofing & Crawl Space Repair in Lindsay, Ontario

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, our trained experts are available to permanently fix the problem.

We will properly install a hidden drainage system in your Lindsay 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

Structural & Foundation Repair in Lindsay

Foundation problems destroy your Lindsay 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
  • Sticking Windows
  • Underpinning

PolyLevel™ Concrete Leveling & Lifting

The sunken and cracked concrete around your Lindsay home is both an eyesore and a safety hazard. It is also likely to get worse, but we can fix it for you.

Our experts use PolyLevel, a superior polyurethane foam. Small holes are drilled in the concrete, the foam is injected and the expanding foam lifts the concrete. The majority of contractors you will call use mudjacking instead of foam. Mudjacking is heavier, require larger holes in the concrete and does not last as long as PolyLevel. Call us today to learn more.

We Fix
  • Cracked Driveways
  • Uneven Patios
  • Sinking Sidewalks      

  • Uneven Concrete
  • Sunken Pool Decks
  • Highway & Commercial Issues


Job Stories From Lindsay, ON
UltraSump and FlexiSpan Stop Water Seepage in Lindsay, ON

After 26 years of protection, Lindsay, ON homeowner Brian M. found that his basement was taking in water.  After trying to find the problem for themselves, Brian and his wife decided to contact a professional to assess their basement and sump pump system.   Brian was soon redirected to Clarke Basement Systems, who sent out a representative shortly thereafter to meet Brian at his home.


Waterproofing specialist Steve Matthews met with Brian to go over possible solutions to his problem.  After a careful analysis of Brian’s basement and sump pump system, Steve recommended that it was time for change.  Steve recommended swapping out Brian’s old sump pump system for the UltraSump sump pump. The UltraSump is not only a reliable sump pump by itself, but it also comes with a built in backup battery to allow drainage even during a power outage. For accommodating the walls, Steve recommended the FlexiSpan wall sealant system.  Unlike traditional fixes such as hydraulic cement, FlexiSpan does not dry up or crack over time.  Additionally, FlexiSpan bends and stretches with the natural movements of the foundation walls ensuring protection throughout the years to come.


Steve called in primary foreman Fitz Wilks and his crew to install the waterproofing products.  With the products at their highest potential, the outside elements are no longer a threat to Brian’s basement and it will stay dry and risk free!

Cracks Forming Around Basement Windows in Lindsay, ON

When Lindsay, ON homeowner Allan F. found cracks around his basement windows which were letting water in, he knew that he wanted professional assistance to come out and evaluate the severity of the problem.  He decided to contact Clarke Basement Systems after seeing them at home shows throughout the area.


Soon after, Clarke sent out waterproofing representative Steve Matthews to inspect Allan’s basement.  What he found was that the cracks were not only allowing water into the basement, but were also growing at an alarming rate.  Steve highly recommended to Allan that the cracks be repaired immediately before extensive damage happened.  Steve proposed that Allan have FlexiSpan installed along the cracks.  FlexiSpan is a polyurethane polymer wall sealant that has the unique ability to bend, move, and stretch with the naturally moving foundation wall. Unlike traditional sealants such as hydraulic cement or other epoxies, FlexiSpan will not dry up or crack, ensuring long lasting results.  After explaining to Allan the process that will be applied, Steve called in primary foreman Fitz Wilks and his crew to install the FlexiSpan wall sealant.


With the FlexiSpan installed, Allan’s home will be safer than ever and thanks to the professionals at Clarke Basement Systems, Allan's home will stay dry for years to come!

Work Requests From Lindsay, ON
Cheese Factory Rd in Lindsay
Scheduling annual maintenance for triple safe etc.
Barron Blvd in Lindsay
Crack in south wall brick that expands in the winter and contracts in the summer. Cracking sounds in wall and ceiling mainly in spring and fall. staircase crack that leads to a crack in the foundation. Ensuite bathroom door becomes difficult to close during the winter. Is this a foundation structural issue?
Nordale Court in Lindsay
Home inspection states that we have a crack in our foundation. We have not experienced any flooding, so I would like to investigate the cost to repair.
McGibbon Blvd in Lindsay
We've had a water leak in the basement possibly caused by a crack in our poured concrete basement wall. The basement is finished with drywall and carpeting.
Mohawk Drive in Lindsay
We have a basement leak think it is a crack in the foundation, leaking into our rec room.
Serving the following Lindsay, ON postal codes
K9V 0A1, K9V 0A2, K9V 0A3, K9V 0A4, K9V 0A5, K9V 0A6, K9V 0A7, K9V 0A8, K9V 0A9, K9V 0B1, K9V 0B2, K9V 0B3, K9V 0B4, K9V 0B5, K9V 0B6, K9V 0B7, K9V 0B8, K9V 0B9, K9V 0C1, K9V 0C2, K9V 0C3, K9V 0C4, K9V 0C5, K9V 0C6, K9V 0C7, K9V 0C8, K9V 0C9, K9V 0E1, K9V 0E2, K9V 0E3, K9V 0E4, K9V 0E5, K9V 0E6, K9V 0E7, K9V 0E8, K9V 0E9, K9V 0G1, K9V 0G2, K9V 0G3, K9V 0G4, K9V 0G5, K9V 0G6, K9V 0G7, K9V 0G8, K9V 0G9, K9V 0H1, K9V 0H2, K9V 0H3, K9V 0H4, K9V 0H5, K9V 0H6, K9V 0H7, K9V 0H8, K9V 0H9, K9V 0J1, K9V 0J2, K9V 0J3, K9V 0J4, K9V 0J5, K9V 0J6, K9V 0J7, K9V 0J8, K9V 0J9, K9V 0K1, K9V 0K2, K9V 0K3, K9V 0K4, K9V 0K5, K9V 0K6, K9V 0K7, K9V 0K8, K9V 0K9, K9V 0L1, K9V 0L2, K9V 0L3, K9V 0L4, K9V 0L5, K9V 0L6, K9V 0L7, K9V 0L8, K9V 1A3, K9V 1A4, K9V 1A5, K9V 1A6, K9V 1A7, K9V 1A8, K9V 1A9, K9V 1B1, K9V 1B2, K9V 1B3, K9V 1B4, K9V 1B5, K9V 1B6, K9V 1B7, K9V 1B8, K9V 1B9, K9V 1C1, K9V 1C3, K9V 1C4, K9V 1C5, K9V 1C6, K9V 1C7, K9V 1C8, K9V 1C9, K9V 1E1, K9V 1E2, K9V 1E3, K9V 1E4, K9V 1E5, K9V 1E6, K9V 1E7, K9V 1E8, K9V 1E9, K9V 1G1

our service area

We serve Ashburn and the nearby area

Our Locations:

Clarke Basement Systems
10638 Ninth Line
Markham, ON L6B1A8