How to Choose the Right Roofing Company in Toronto

Finding a Roofer You Can Trust

Your roof is the most critical component of your home's building envelope. Choosing the wrong roofer can lead to leaks, premature failure, and costly repairs. Here's how to find the right one in Toronto.

1. Verify Licensing and Insurance

In Ontario, roofing contractors should carry both general liability insurance (minimum $2 million) and Workplace Safety and Insurance Board (WSIB) coverage. Ask to see current certificates before signing any contract. If a worker is injured on your property and the company lacks WSIB, you could be held liable.

2. Check for Manufacturer Certifications

Top roofing companies earn certifications from shingle manufacturers like GAF, CertainTeed, and IKO. These certifications — such as GAF Master Elite or CertainTeed SELECT ShingleMaster — require proven experience, ongoing training, and financial stability. Certified contractors can also offer enhanced manufacturer warranties.

3. Get Multiple Written Quotes

Always get at least three written quotes for any significant roofing project. Each quote should itemise materials, labour, tear-off and disposal, and any additional work like flashing or ventilation. Be cautious of quotes that are dramatically lower than competitors — this often signals corners being cut.

4. Read Reviews and Ask for References

Check Google Reviews, HomeStars, and the Better Business Bureau. Look for patterns in reviews rather than individual ratings. Ask the roofer for 3-5 references from projects similar to yours, ideally in your neighbourhood.

5. Understand the Warranty

There are two types of roofing warranties: the manufacturer's material warranty and the contractor's workmanship warranty. Make sure you understand what each covers and for how long. A 25-year material warranty means nothing if the installation is poor — which is why the workmanship warranty matters most.

6. Get Everything in Writing

Your contract should include the scope of work, materials to be used (brand and product line), start and completion dates, payment schedule, warranty terms, and cleanup expectations. Never pay more than 10-15% upfront — reputable roofers don't require large deposits.