“HSO Contracting built a new deck and enclosed a breezeway to make it a 3 season room for our house in Harwich. We were very pleased with all aspects of the project. HSO does very high quality work, they completed the project in a very timely manner, and there were no cost increases at all during the project. During the project they kept the work area very clean and kept any work related house disruptions to a minimum. I can give them a very high recommendation for house additions or alterations on Cape Cod.”