Buildmart Windows & Doors is Ottawa's one-stop shop for replacement windows, entry doors, patio doors, and siding — proudly serving the region since 2006. As a local Ottawa business, we offer a hands-on showroom experience, professional installation, and a comprehensive 25-year warranty covering frames, hardware, insulated glass units, paint, and installation workmanship. Our product range spans triple and double pane windows, casement, tilt-and-turn, bay & bow, vinyl windows, and more — alongside fibreglass, steel, garden, and patio doors. We also supply siding for residential and commercial projects. We serve Ottawa and surrounding communities including Kanata, Barrhaven, Orleans, Nepean, Gloucester, and beyond. Contact us today — we'll call you back within 15 minutes during business hours.