John and his team installed an excellent EnergyStar roof on our 1910 Riverdale house several years ago. Thanks to the new roof's low emissive rating, our attic cooled accordingly during the summer compered with our old roof. However, on two occasions over the past year shingles came loose on one dormer. I called John both times, and he showed up with a long ladder and reattached the shingles, no questions asked. He did not charge us. The guarantee on the roof proved solid. I would highly recommend John and his team, especially for roofing jobs in the east end of Toronto.