Here at Guaranteed Building Maintenance We Take Pride in Providing the Best Shingle Services Service to the Sturbridge MA Area. Our Specialties Include Leak Repair, Roof Recovering, Roof Repair, Skylight Installation & Replacement, Powerwashing, Roof Cleaning, Gutter Cleaning. Some Other Services We Provide Are Roof Inspection, Gutter Installation and Roof Installation. Please Give Us a Call Today for Your Estimate.