This 40-yr. warranty is even more than twice other roofing companies supply in Natick Massachusetts. G.F. Sprague has the ability to offer a 40-yr guarantee due to our extensive training, certifications, and experience. We are one of a few specialists who lugs a DCAM License (# 08-0165). We at G.F. Sprague offer all of our clients with a "5-Star" service. We wish to make sure you feel that you, and your roofing job, were treated as if you were receiving 5-Star preferential treatment at a high-end accommodation center. Because 1969, G.F. Sprague & Co Inc has been providing roofing, chimney, window and rain gutter service to the citizens of Natick Mass. And our company has actually thrived over these 40+ plus years due to how we treat each consumer and the recommendations we get from them.