We contacted National Star, Done Right and A. Clark to get an estimate. National Star did not return our phone calls or emails so we got quotes from Done Right and A.Clark. Done Right was considerably more expensive for the same shingles and same services. They also provided a quote for our neighbours and were twice the price of A. Clark! We both chose A. Clark based on price, and both were very happy with the service and final product. Paul provided us with the quote and was helpful and friendly. I was the one at home when Paul came to the house to provide the quote and I told him I might not be able to remember everything to tell my husband. He happily called my husband the next day and went over everything again! He gave me a copy of their insurance certificate and WCB certificate. The price quoted is not an estimate, it is the price. If they make a mistake on the quote they do not charge you more if it ends up costing more. You also do not pay any money up front, but only after the job is complete. After the quote it took awhile before they actually came out to do the work. I think there may have been a mix up at the office as our neighbours had their house done first even though we got the quote before they did. I did not care because we had not paid anything and I wanted to see the results of our neighbours' house first to make sure we hadn't made a mistake. The neighbours were very happy with the workers and with the finished product. We called A. Clark again and they finally came to do the roof. The workers were very professional and showed my husband how they had fixed our ice damming problem. The job was finished in 2 days and looks fantastic. I highly recommend A. Clark!