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Windsor-Essex Chamber of Commerce
Chatham Kent Chamber of Commerce
London Chamber of Commerce
Chatham Home Builders Association

Basement Waterproofing & Foundation Repair Contractor in London, Windsor, Chatham, Sarnia

Serving Southwestern Ontario

Advanced Basement Systems provides basement waterproofing, crawl space repair, radon & mitigation, concrete leveling, and foundation repair to homeowners in Southwestern Ontario. We have served Ontario since 2003 and offer custom solutions, designed to repair and upgrade your basement, crawl space, foundation or other below grade space, creating a dry, healthy home.

You can expect the highest quality work and customer service. Our expertly trained and courteous technicians only install permanent, warrantied systems to fix your basement or foundation. We serve homeowners and businesses in Chatham, London, Sarnia, Windsor and the surrounding area. Call us today for a free home inspection and no-obligation, estimate.

Why Ontario Homeowners Choose Us

Proven, Patented Products

Trained & Certified Technicians

Written, Transferable Warranties

Recognized & Awarded Service


For the past 10 years Advanced Basement Systems has built a reputation based on quality work and superior customer service. We permanently fix your basement or foundation using proven, patented products. These custom-designed systems have written, transferable warranties. We arrive on time and complete projects on schedule. All your questions are answered and you are treated respectfully.

Advanced Basement Systems has won numerous awards for our work and customer service. In 2011, we received the Better Business Bureau of Western Ontario Integrity Award as well as the Business Excellence Award from the Windsor-Essex Regional Chamber of Commerce in 2010. Advanced Basement Systems is also a proud member of the Canadian Federation of Independent Business (CFIB). If you are dealing with a wet basement, mouldy crawl space, settling foundation or radon gas we are Ontario's expert. We work in Sarnia, London, Windsor, Chatham & surrounding areas.

Thousands of satisfied customers in London, Sarnia & Stratford

Your Local Experts in Chatham, Sarnia, Windsor, London

As a locally owned and operated company, we at Advanced Basement Systems strive to continuously improve ourselves and our community. This dedication to quality and community building has resulted in thousands of positive reviews from our past Ontario customers. The praise of our customers has led to the success of our company.

We are members of Basement Systems and Supportworks international networks of basement waterproofing and foundation repair contractors. As members, our technicians receive advanced training and certification. We also gain access to exclusive basement & foundation products designed by a team of engineers. Advanced Basement Systems is your local basement waterproofing, foundation repair, radon mitigation, and crawl space encapsulation contractor servicing Southwestern Ontario, including London, Windsor, Chatham, Sarnia. Give us a call today to get started! 1-844-320-1542

our service area

We serve the following areas

  • Aylmer
  • Beachville
  • Bright
  • Burford
  • Burgessville
  • Cathcart
  • Clear Creek
  • Courtland
  • Delhi
  • Eden
  • Embro
  • Erieau
  • Fingal
  • Harley
  • Harrietsville
  • Hickson
  • Innerkip
  • La Salette
  • Langton
  • Morpeth
  • Mossley
  • Mount Elgin
  • Mount Pleasant
  • Norwich
  • Oakland
  • Otterville
  • Plattsville
  • Port Burwell
  • Port Rowan
  • Port Stanley
  • Princeton
  • Salford
  • Scotland
  • Springford
  • St George Brant
  • St Thomas
  • St Williams
  • Straffordville
  • Teeterville
  • Tillsonburg
  • Turkey Point
  • Union
  • Vanessa
  • Vienna
  • Vittoria
  • Wallacetown
  • Walsingham
  • Waterford
  • Wilsonville
  • Windham Centre
Our Locations:

Advanced Basement Systems
23576 Prince Albert Road
Chatham, ON N7M 5J7

Advanced Basement Systems
199 Exeter Rd Unit E
London, On N6L 1A4
Coverage Area: Southwestern Ontario