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    Windows & Doors
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    Roof Replacement
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    Eavestrough & Siding
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Roofing, Siding & Exterior Home Improvements for
Residents of Barrie, Newmarket & Beyond.

With offices in Barrie and Newmarket, T. Simpson Roofing is a family-owned and -operated company with over 25 years of experience. Our extensive roofing knowledge, combined with honest customer service interactions, has solidified our position among the best roofing companies in the industry.

Our commitment to delivering top-quality work, using only the finest materials, has also secured our status as Master Elite™ Contractors—an exclusive industry designation held by only 3% of North American roofing contractors.


Expanding Our Services to
Fit Your Needs

T. Simpson Roofing specializes in residential roofing services, from eavestrough, siding, windows,  doors and blown insulation.

Our fully trained staff can provide you with expert advice on your roofing, and installation needs, including a free, no-obligation quote. All of our work comes with an available 25 year labour warranty.


Quality Assurance Second to None

T. Simpson Roofing’s status as a GAF Master Elite™ Certified Contractor qualifies all of our GAF roofs for a 50-year, non-prorated warranty covering materials and labour. We are the only roofers in our service area to offer a warranty of this caliber, providing you the greatest peace of mind that your home will be protected.

Additionally, all our employees are covered under the Workplace Safety and Insurance Board, and we carry full public liability, so our work on your home is entirely risk-free.


to talk about our best industry warranties.


“FYI--the guys who came to our house were amazing. They were courteous and professional. They also cleaned the area they worked in above and beyond what we expected--they cleaned up part of a mess that had everything to do with my husband and nothing to do with the roof! Haha! Seriously--we were very happy with their work and would (will!) happily have them back in the future. Thanks!”

We are very happy with our newly installed work. The organization and excellent handling of customer service was very clear and helpful in allaying some of our anxiety re scheduling. Thank you very much for being a company we can trust.”