ADVANCED BASEMENT SYSTEMS is the authorized Basement Systems dealer in southwestern Ontario, Canada. The staff is trained and certified at the corporate headquarters in Connecticut, U.S. We offer Free Basement and Crawl Space Waterproofing Inspections and Estimates Proudly Serving Ontario, CA Advanced Basement Systems is basement waterproofing contractor and crawl space encapsulation contractor servicing southwestern Ontario, Canada, including Woodstock, London, Sarnia, Chatham, Cottam, Windsor, Goderich, Bayfield, St. Thomas, Kincardine, Walkerton, Ripley, Mildmay, Teeswater, Glenannan, Lucknow, Wingham, Brussels, Listowe, Goderich, Clinton, Seaforth, Logan, Milverton, Logan, Hensall, Zurich, Exeter, Bayfield, Grand Bend, St. Marys, Centriala, Lucan, Parkhill, Thedford, Forest, Thamesford, Belmont, Mount Brydges, Glencoe, Strathroy, Petrolia, Dresdan, Ridgetown, Rodney, West Lorne, Dutton, Aylmer and Brantford. Canadian Federation of Independent Businesses   Advanced Basement Systems is a proud member of the Canadian Federation of Independent Business (CFIB). The CFIB is a Federation that has been the big voice for small Canadian businesses for over 35 years. With 105,000 businesses spreading from coast to coast forming its ranks, they stand for free enterprise, small business, and defending the entrepreneurial spirit. Top Dealer in the Basement Systems International Network Advanced Basement Systems is a top dealer in Canada and part of the Basement Systems network of more than 300 basement waterproofing and crawl space encapsulation contractors in Canada, the U.S., the U.K. and Ireland. For your free basement waterproofing estimate in Ontario, Canada or a free crawl space waterproofing estimate, call us today or contact us online! Customer Testimonials Read what some of our customers have to say about us. A Message from our President, Martin Bates