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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 Repair Contractor

For a FREE no-obligation foundation repair estimate in Oshawa, ON, please fill out the form to the right 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
OVERBANK Dr in Oshawa
We have a cold cellar in the basement that smells moldy and has had previous mold issues
Northbrook Street in Oshawa
Need help with my project
Bickle Dr in Oshawa
Hi good eve, looking to have concrete pad around my pool lifted sunken in many places. Looking For a quote on your services..
Olive Ave in Oshawa
You need to answer your phone
Oshawa Blvd S in Oshawa
I am looking to get an estimate on waterproofing my basement. Just wondering how we can go about arranging to do that. I'm located in Oshawa. Thank you I look forward to hearing back from you.
Centre St. N. in Oshawa
Century house that gets water in the basement during the spring thaw and during very heavy rain on occasion other times of the year
Kingsdale Avenue in Oshawa
I have a small barely visible crack in basement walk that was only leaking in one corner but now is leaking all around. Only during major rainstorms
Burk Street in Oshawa
Good day, With the amount of ice, rain and general melt we have been experiencing some minor flooding in our basement. It's a fairly old house built in the early 1900s, the basement was finished before we took ownership 3 years ago. Last year we noticed a small amount of flooding in early May but it was only for a few days and then nothing until now. We do have a sump pit/pump at the rear of the house away from the flooding and it does run fairly frequently. The current situation is focused at the front of the house, we are unsure if it's coming from the walls or hydrostatic pressure pushing up through the floor. Our basement flooring is rolled vinyl for half and raised vinyl planks on the other half, so it's pretty hard to tell where a crack in the floor may be. Wanted to see what the experts thought.
Bloor St E in Oshawa
Hello, I have damage to a concrete foundation due to bad eaves trough drainage. Thanks.
Simcoe St S in Oshawa
I have water coming into basement
Charter Crescent in Oshawa
Bala Drive in Oshawa
Leaking into root cellar them into basement
Clarke St in Oshawa
I have water in my basement coming from who knows where please contact via email
Mary St North in Oshawa
Sinking floor
Colborne Street East in Oshawa
Would like to get a quote done for a crack and leak in the foundation. I have a photo I can send as well if that makes it easier. Thanks
Annapolis Avenue in Oshawa
Our #1 concern is the need for structural repairs. However, the crawl space also lacks insulation and could benefit from a general clean up as well.
Belair Cres in Oshawa
Crack in foundation, visible in basement after drywall been pulled off. around 4-4.5 feet long.
Buckingham Avenue in Oshawa
Looks as if basement repairs were started and not completed when I brought the house and its leaking at the part that was not completely fixed
Gladstone Ave in Oshawa
A leak in the corner of the basement.
Eastlawn St in Oshawa
There is significant water built up in the window well, going into the basement.
Serving the following Oshawa, ON postal codes
L1G 0A1, L1G 0A2, L1G 0A3, L1G 0A5, L1G 0A6, L1G 0A8, L1G 0A9, L1G 0B1, L1G 0B2, L1G 0B3, L1G 0B4, L1G 0B5, L1G 0B6, L1G 1A1, L1G 1A2, L1G 1A4, L1G 1A5, L1G 1A6, L1G 1A7, L1G 1A8, L1G 1A9, L1G 1B1, L1G 1B2, L1G 1B3, L1G 1B4, L1G 1B5, L1G 1B6, L1G 1B7, L1G 1B8, L1G 1B9, L1G 1C1, L1G 1C2, L1G 1C3, L1G 1C4, L1G 1C5, L1G 1C6, L1G 1C7, L1G 1C9, L1G 1E1, L1G 1E3, L1G 1E5, L1G 1E6, L1G 1E7, L1G 1E8, L1G 1E9, L1G 1G1, L1G 1G2, L1G 1G3, L1G 1G4, L1G 1G5, L1G 1G6, L1G 1G7, L1G 1G8, L1G 1G9, L1G 1H1, L1G 1H2, L1G 1H3, L1G 1H4, L1G 1H5, L1G 1H6, L1G 1H7, L1G 1H8, L1G 1H9, L1G 1J1, L1G 1J2, L1G 1J3, L1G 1J4, L1G 1J5, L1G 1J6, L1G 1J7, L1G 1J8, L1G 1J9, L1G 1K1, L1G 1K2, L1G 1K3, L1G 1K6, L1G 1K7, L1G 1K8, L1G 1K9, L1G 1L1, L1G 1L2, L1G 1L3, L1G 1L4, L1G 1L5, L1G 1L6, L1G 1L7, L1G 1L8, L1G 1L9, L1G 1M1, L1G 1M3, L1G 1M4, L1G 1M5, L1G 1M6, L1G 1M7, L1G 1M8, L1G 1M9, L1G 1N1, L1G 1N2, L1G 1N3, L1G 1N4, L1G 1N5, L1G 1N6, L1G 1N7, L1G 1N8, L1G 1N9, L1G 1P1, L1G 1P2, L1G 1P3, L1G 1P4, L1G 1P5, L1G 1P6, L1G 1P7, L1G 1P8, L1G 1P9

our service area