Leaders in Roofing Services in Oshawa & Surrounding areas of the GTA, Since 1975

Gentry Success

Gentry success is the result of the long-term relationships we have developed with our customers.

Gentry provides FREE estimates and has written guarantees for all commercial & industrial projects. To get your estimate today of roof repair, roof installation, & other roofing services, Call Us

The name Gentry has been synonymous with quality Commercial and Industrial roofing services. Gentry success is the result of the long-term relationships we have developed with our customers. These relationships have been built on consistent, high quality roofing specifications, superior workmanship, service, trust, and integrity.

We provide top-notch industrial and commercial roofing services at highly competitive prices in Toronto, Oshawa, Durham Region, Newmarket, Woodbridge, Brampton, Mississauga, Markham,  Etobicoke, Port Perry, Newcastle, York Region, Peel Region,  the GTA and Southern Ontario area. From the smallest leak repair to a complete roof replacement project, we deliver the same professionalism, dedication and customer satisfaction.

All our work comes with written warranties for up to 20 years. In addition we also offer several extended warranty plans for a fair and reasonable cost, covering all annual roof inspections and maintenance by our professionals. Our goal is simple: we want to exceed the expectations of our customers by delivering the highest quality Commercial Roofing and Industrial Roofing services available in the market today.

Benefits of Gentry Flat Roofs


The primary benefit of a gentry system is its efficient use of available space


Creating a second floor or eliminating attic space may be desirable options


Gentry installation consists of putting down multiple layers of water resistant materials

Dependable and Reliable

All Gentry products are the highest quality and carry warranties that exceed the industry standards both in length and in comprehensiveness. Gentry offers 10-25 year workmanship warranties depending on the membrane on all Commercial and Industrial flat roofing installations. We also offer reasonable financing options.

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