Start by asking 3 separate contractors to submit a proposal and most homeowners are temped to take the lowest bid, that may or may not work out.
A professional contractor is not usually the lowest bidder because they need to hired experienced workers, carry a overhead, carry proper insurance including WSIB and of course make a profit.
It wise to ask 5 top questions when looking for a new roof...
-how long has the company been in business
-does the company carry insurance
-is the company a licensed or credentialed contractor
-will the company provide referrals
-what is the company's workmanship warranty
The answer to these questions will tell you allot about the company's professionalism, reliability and whether or not the company will be around to honor the warranty.
Make sure the contractor is properly insured to protect your best interest, 2 million dollar liability is acceptable for residential roofing whereas commercial 5 million dollar liability is a starting point
