+1.905.761.9722 130 Pennsylvania Ave., Unit #8 Concord, Ontario L4K 4A8

About Us

Dominion Doors & Windows Ltd. manufactures and markets heavy-duty commercial and architectural vinyl windows, various types of sliding and hinged doors, commercial glazing and entrance systems, and sloped glazing systems to the renovation and new construction markets throughout Canada and abroad. Operating from a 15,000 square foot modern manufacturing facility in Concord, Ontario, Dominion’s installation work ranges from Windsor to Ottawa and North to Sudbury and beyond.

For more than three decades we’ve worked side by side with many architects, engineers, and building owners to design and manufacture windows for many complex building projects. From government buildings, schools, hospitals, apartment buildings, office buildings, condominiums, church cooperatives, and many other various types of buildings. That’s why most experts consider DDW Ltd. to be one of Canada’s leading suppliers of vinyl window systems.

All products are CCMC approved, NAFTS and Energy Star Rated for high-rise and low-rise buildings, and meet all the latest O.B.C. (Ontario building code), required for all types of jobs.