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Products & Services
Foundation Repair Services & Products
Push Pier Underpinning For Settlement, Foundation Leveling, Sinking Foundation 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
Shotcrete Wall Restoration

We Are Oshawa's Proven Foundation Wall Crack Repair Contractor

For a FREE no-obligation foundation repair estimate in Oshawa, ON, please fill out the estimate form and Foundation Supportworks of Ontario will contact you shortly.
Happy Customers Surrounding Oshawa, ON
Work Requests

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Responsible foundation repair company serving Oshawa, Ontario

We not only adhere to the highest industry standards, we strive to be the industry leader in the home improvement related services we provide. We also use state-of-the-art products and technology which are designed to fix your home. We are the authorized Basement Systems dealer in Oshawa, ON.

Services we offer in Oshawa:

  • Wet/flooded basement waterproofing solutions.
  • Lifetime warranty on all perimeter waterproofing systems.
  • Foundation and structural repair solutions.
  • 25-year warranty against manufacturing defects on foundation products.
  • Crawl space sealing with CleanSpace vapor barrier.
  • 25-year warranty on crawl space encapsulation systems.
  • Financing Available
  • FREE written estimates and inspections, and fast installation
Job Stories From Oshawa, ON
Oshawa, ON Foundation Crack Repaired with FlexiSpan

Stephen D. of Oshawa, ON noticed that his foundation wall was showing signs of water seepage, manifested in the form of a lengthy wall crack. Worried for the healthfulness of his home, he sought out assistance in fixing this problem, which led him to the talented team at Clarke Basement Systems.


Claude Mathieu met Stephen at his residence to analyze the problem and determine what the best course of action for remediation would be. Claude recommended the FlexiSpan waterproofing system, designed specifically to fix leaks in foundation walls. Primary Foreman Lucio Flores arrived with his crew to perform installation, which took only a single day and required minimal intrusion into the home. Stephen was ecstatic about the finished project, and greatly appreciated the peace of mind that his foundation would remain leak free.

Work Requests From Oshawa, ON
Project Location: Oshawa, ON
The carpet of my cold storage in my basement is wet. No able to figure out the leakeage.
Project Location: Oshawa, ON
Hi, I have a house in Oshawa that I have water getting in basement. I need you to review and get options to fix. I have used your company twice in the past. Please scheduled an appointment asap. I am available this week. Thanks Dwayne
Project Location: Oshawa, ON
Looking at getting an interior weeping system put in one corner of my basement. It is my dad's kitchen and it appears that during heavy rain or thaw that it comes in the corner, but it's impossible to know the exact spot since it is a finished space. Just looking to go over options
Project Location: Oshawa, ON
Buckling basement is starting to leak. Home inspection reveals the basement needs to be reinforced. Are you available this Wednesday afternoon around 3-4pm?
Project Location: Oshawa, ON
Need a quote and advice for waterproofing
Project Location: Oshawa, ON
Slanting floor and gaps in flooring increasing day by day
Project Location: Oshawa, ON
I have some water damage in my basement. I've removed the laminate flooring and found the subfloor is damp and black along an outside wall.
Project Location: Oshawa, ON
Sagging floors in kitchen and upstairs, need a consultation to raise and possibly repair joists. We have some metal poles but the also need to be adjusted, some added and some replaced due to rusting.
Project Location: Oshawa, ON
Large crack in basement foundation. Starts at window and ends ~6 inches from basement floor. Attempted to seal on my own with filler however still appears to leak. Crack can be seen at window from outside. Need done ASAP. And information appreciated. Thank you in advance 🙏🏼
Project Location: Oshawa, ON
At times I can get a strong mouldy odour in the basement and the cellar.
Project Location: Oshawa, ON
Need a cold room sealed and finished.
Project Location: Oshawa, ON
Part of my floor has sloped into the middle of the house. I'd like to find out if it is repairable and what my options are. I appreciate your time.
Project Location: Oshawa, ON
We are seeing pooling on our basement floor. We have done some investigating and attempted to seal what we believed was the cause. However the problem remains and we are seeing more water pooling than before.
Project Location: Oshawa, ON
I would like to make my cold room a finished storage space.
Project Location: Oshawa, ON
Waterproofing basement
Project Location: Oshawa, ON
Leaky spot in foundation that is dripping into the basement during heavy rainfalls
Project Location: Oshawa, ON
Need to get the 4 walls of the basement waterproofed before getting rooms built in it. External measurement= 34ft. x 22ft.
Project Location: Oshawa, ON
Water issue with basement wall, only one section approx. 15ft at the rear of the home, under deck. Moisture coming through wall
Project Location: Oshawa, ON
Water leak in basement from foundation
Project Location: Oshawa, ON
We have had some repairs completed by you company upon the purchase of our home. We have a significant leak in the crawl space area of our home that would require repair as a significant amount of water is coming into our home. If someone could please contact me as soon as possible to arrange an estimate for repair, I would appreciate it. Thank you
Serving the following Oshawa, ON postal codes
L1C, L1G, L1H, L1J, L1K, L1L, L1N

our service area