Cutting Edge Window & Door Proudly offers High Quality Canadian Products. We stand behind what we sell by offering a Lifetime Installation Warranty as well as Prompt “in house” Service. Upgrade with Cutting Edge’s energy-efficient windows and doors, built for Canada’s climate. Enjoy superior insulation, security, and style. Perfect for renovations or new builds, our durable products lower energy bills and increase home value. Choose Cutting Edge—innovation and reliability combined.