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Commercial Roofing Services in the GTA


Flat roofs usually come with a 10 to 20-year warranty but the roofs can last 25 years if properly installed and maintained. Contact us now for more information.

Built-Up Roof (BUR)

The traditional hot-tar-and-gravel roof is built from three or more plies of waterproof material alternated with hot tar and ballasted by a layer of smooth river stone. Once made of tar paper, these types of roofs gradually are using more-advanced materials such as fiberglass membranes.

Torch Down Roof

Sheets of modified bitumen are torched and adhere to the roofing surface. Once the layers reach the right temperature, seams are melted together to create a waterproof seal. The membrane layers of a tourch down roof are made of an asphalt compound called bitumen that is modified with either rubber or plastic. 


Alterations and retrofits.

Commercial Roofing

We have been serving the roofing needs of the GTA businesses for well over 15 years.

Contact Us Now
Guildwood Roofing

Guildwood Roofing

55 Torbay Road Unit 14

Markham, ON, L3R 1G7

Phone: 416-564-7388


Service Area

  • Durham

  • Halton Region

  • Peel

  • York

  • City of Toronto

  • Oshawa

  • Newmarket

  • Burlington

  • Markham

  • Uxbridge


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Guildwood Roofing is committed to respecting the privacy of individuals and recognizes a need for the appropriate management and protection of any personal information that you agree to provide to us. We will not share your information with any third party outside of our organization, other than as necessary to fulfill your request.

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