On Star Windows & Doors

On Star Windows & Doors sells and installs windows and doors in Toronto, GTA and South Western Ontario. We offer vinyl replacement windows manufactured at a state of the art factory, meeting and exceeding Ontario’s building code. Our entry doors systems are also of the highest quality, with many finishing options; available in steel and fiberglass. Our windows, entry doors and patio doors are manufactured in Canada using state of the art process, ensuring each door and window meets or exceeds Ontario building code. We have installed hundreds of windows and doors over the last few years, with aim to provide greatest customer experience. Our clients’ referrals and repeat business are the most important accolade for us that we always strive to earn.

318 John St Thornhill, ON L3T 0B1

info@onstarwindowsdoors.com