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Basement Waterproofing Case Studies: Leaking Wall Crack Soaks Belongings in Oshawa, Ontario

Friday, March 22nd, 2019 by Dan Koehler


Store it and forget it. We’re all guilty of it. We throw something into the storage room or crawlspace and forget about it for a few months or years, knowing we only need it once in a while. We have the peace of mind knowing it will be safe and sound in storage, and we can retrieve it later with no worries. 

For a customer in Oshawa, Ontario, a form tie and wall crack had stolen that peace of mind. They used their crawl space for storage, but the crack was constantly soaking the entire area and their belongings. The water seepage was so bad that the customer was removing water every three hours!

Frustrated and ready for a change, the customer reached out to Clarke Basement Systems.


We had fixed a wall crack in 2012 for this customer at a different home in Etobicoke. For a second time, Chris Luke inspected a house for them. Chris found the crack and assured the customer they wouldn’t need to excavate their driveway since the crack could be waterproofed from the inside.

Foreman Mark Dougherty used our FlexiSpan® Crack Repair System to waterproof the crack and form tie hole. He starts the process by injecting the voids with FlexiSpan®. This unique polymer is flexible, preventing cracking due to the foundation expanding and contracting. Mark also dug a small drain into the floor to remove excess water.

The customer is thrilled that his belongings are finally dry. Our system was able to prevent thousands of dollars in repair costs, and his water removal days are behind him!

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Our Locations:

Clarke Basement Systems
12045 McCowan Rd
Stouffville, ON L4A 4C3

Clarke Basement Systems
7250 Keele St Store #209
Vaughan, ON L4k 1Z8