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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.

Windows

Awning Windows
Bay & Bow Windows
Casement Windows
Hung Windows
Picture & Shaped Windows
Slider Windows

Doors

Front Entry Doors
Patio Doors

Contact Info

Toll Free: 1 (800) 383-6041

Local GTA: 647-383-7675

318 John Street
Thornhill, ON L3T 0B1

We service Toronto, GTA, London, Guelph, Hamilton, Burlington, Brantford and other nearby areas in South Western Ontario

Request A Quote

Windows

Doors

Contact Info

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