Before you decide to call in professional roofing contractors to re-shingle your roof, there are a few basic things you should know about roofing to make sure you understand the process and some questions you need to ask before any work gets underway. Start by asking the contractor for an estimate based on the choice of shingles, labour costs and the application methods you’ve agreed upon. Knowing the size and slope of your roof will determine the number of shingles needed to cover the total area, although allowances must be made for starter strips and accessory shingles used to finish the hips and ridges of your roof. In a case where damaged sheathing uncovered during tear off has to be replaced, the roofing cost may need to be amended. Ask the contractor to advise you of any changes to the initial estimate before completing the job. Before any work begins, you should know a reputable contractor will take care of removing and disposing the old shingles from your roof, so ask for this service to be specifically included in the contract, as well as an assurance that your garden and lawn will be cleared of any roofing debris. Make sure to ask about the length of the manufacturer’s warranty and whether the contractor offers a warranty. You should know the former usually covers anywhere from twenty-five years to a lifetime warranty depending on the product, while the latter can run from one to five years. You want the peace of mind that comes from knowing the roofing company you choose will stand behind their work and service a legitimate complaint within a reasonable time after the work has been completed. No matter which qualified Newmarket roofing company you select, it’s important for you to know you are hiring professionals that will complete the work in a timely and efficient manner and are willing to answer any questions you have about the process.