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Thermo Bilt Windows & Doors

Canadian window and door manufacturer and installer based in Markham, Ontario, serving the Greater Toronto Area since 1997.

Last updated September 1, 2026

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Overview

Thermo Bilt Windows & Doors is a Canadian window and door manufacturer and installer based in Markham, Ontario, serving the Greater Toronto Area since 1997. The company offers a range of window styles including casement, awning, bay, bow, double-hung, and sliding windows, as well as door styles such as steel entry, fibreglass entry, sliding patio, hinged garden, and fixed/picture doors. They emphasize high-quality materials, including Cardinal glass, and provide installation services across Southern Ontario.

History

Thermo Bilt Windows & Doors has been serving the Toronto area for over twenty years, according to their official website. Wikidata indicates the company was founded in 1997 and is based in Markham, Ontario, serving the Greater Toronto Area.

Products and positioning

  • Casement Windows

    A type of window that is hinged at the side and opens outward.

  • Awning Windows

    A window that is hinged at the top and opens outward.

  • Sliding Patio Doors

    Doors that slide horizontally to open.

  • Bay Windows

    A window that projects outward from the wall, typically with three panels.

  • Bow Windows

    A curved bay window with multiple panels.

  • Double-Hung Windows

    A window with two sashes that slide vertically.

  • Sliding Windows (Single & Double)

    Windows that slide horizontally.

  • Steel Entry Doors

    Entry doors made of steel for durability and security.

  • Fibreglass Entry Doors

    Entry doors made of fibreglass for insulation and durability.

  • Hinged Garden Doors

    Doors that open on hinges, often used for garden access.

  • Fixed / Picture Doors

    Non-operable doors that provide a view and light.

Sources5 sources

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