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GAF Certified Roofing Solution company

Protect your largest investment with the reliable roofing services of Tilley Roofing. We are a locally owned and operated roofing company currently serving St. Thomas, ON and surrounding communities. If you want to make your roof last as long as possible, it is vital that you never put off a roof repair. Small issues with roofing become big issues in a hurry. No matter how major or minor the repair you need, we are here to help. Our services include roofing services, new roofs, and skylight repairs. Our other specialties are:

  • Roofing Contracting
  • Roof Repairs
  • Certified Roofing
  • Asphalt Roofs

Your roof does a lot of work; it keeps your home and your family protected from the elements, and it helps your home look its best. Your roof is too important to trust to anyone but the experts, and we have the knowledge and experience needed to ensure a job well done. We also offer roofing repair, asphalt shingle roof, and steel roof services.

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Why Hire a GAF Certified Roofing Contractor?

GAF Certified Weather Stopper® Roofing Contractor program is a steep-slope program that screens residential roofers and trains them. Only 6% of roofing contractors are in this program, as many roofers are unwilling to go through the process.


Professional Installation

To ensure your total satisfaction, contractors have been provided with extensive educational materials developed by experts at GAF.


Superior Protection

GAF Weather Stopper® 3-Part Roof Protection System gives you the best protection against a variety of all-too-common roofing problems.



What this program means for you as a homeowner is that your roof system can be installed exactly as the manufacturer intends and warranties it.



Factory-certified contractors also learn about the process of shingle manufacturing by touring live manufacturing plants in action. This connection with the factory can only help roofers better know their materials and better utilize common sense and proper procedures in installing them.


On-Going Education and Support

Factory-certified roofers have access to conventional, expert opinions/judgments on roofing matters. Factory-certified roofers have real-time access to getting questions answered.



Factory-certified contractors are trained in GAF’s Pro Field Guides and pass corresponding exams.