Clarke Basement Systems
Exciting news for our Southern Ontario customers! Clarke Basement Systems is now providing waterproofing, foundations, and crawl space repair solutions under the Groundworks banner.
Our Office Locations
Groundworks – Toronto
12029 McCowan Rd
Stouffville, ON L4A 4C3
1-365-800-6046
Services Offered in Toronto

Foundation Repair
Groundworks is your reliable partner for long-lasting foundation repair services in Alberta. Secure your home now!

Basement Waterproofing
Groundworks offers robust basement waterproofing solutions to permanently solve water intrusion and dampness issues.

Crawl Space Repair
Stabilize your crawl space, keeping it strong for years to come. Groundworks is your go-to expert for crawl space repair.

Concrete Lifting
Repair your sinking concrete with Groundworks’ PolyRenewal™ concrete lifting technology. Efficient, durable, and eco-friendly.
About Clarke Basement Systems
In 2003, Don Clarke founded Clarke Basement Authority and brought foundation repair solutions to the Toronto area. In 2024, Clarke Basement Authority partnered with Groundworks, the nation’s leading and fastest growing foundation repair and water management solutions provider, to offer industry-leading technology and resources to more customers across Ontario. Clarke Basement Authority continues to provide elite customer service and quality home solutions for all foundation repair, basement waterproofing, and crawlspace repair needs.

Proudly Serving Southern Ontario
Southern Ontario trusts Groundworks for reliable crawl space, basement waterproofing and foundation repair services. Contact us for a free inspection!
Why You Should Choose Us



