About Us


- emergency roof repairs

- roof replacement

- maintenance reports

- roof assessment

- eaves trough & downspouts

- soffit & fascia

- sheet metal

When you have a serious project that needs to be done, look no further than DT Roofing, a leader in commercial roofing.  Your one stop roofing specialist!

 Mr. Denis Theriault, founder of DT Roofing, has over 15 years of roofing experience in the Greater Toronto Area. He has worked all types of projects including, but not limited to: schools, universities, high-rise towers, commercial, industrial, hospitals, residential, etc. His knowledge in roofing is well versed and he continues to research the market for innovative products. Mr. Theriault has gained his RRO accreditation from the Roof Consultant Institute (RCI Inc.) which enables him to accurately assess the condition of an existing roof or the application of a new one.

DT Roofing, led by Mr. Denis Theriault, would be happy to assist you with any of your roofing requirements!

Honesty, commitment and quality