Before starting a Chestermere Commercial Roofing project get a contract. This should include all the details of the project, time frame for completion, and price. It should clearly outline payment policies and warranties. Read the warranty carefully to make sure you are adequately protected. Also, be sure the contract states they are responsible for clean up. Roofing materials can be very messy and you do not want to have to clean up and dispose of waste yourself. But keep in mind you can save yourself some money if you choose to tackle the cleanup process yourself.