Guaranteed Building Maintenance Co. provides professional exterior improvement and maintenance services for residential and commercial properties. With nearly 30 years of experience in the industry, our team focuses on quality workmanship and careful attention to detail on every project. Our services include roof installation, roof repair, reroofing and roof cleaning, along with asphalt shingle, wood shake, and flat roofing systems. We also provide window and door installation services designed to improve the appearance, functionality, and protection of your property. Guaranteed Building Maintenance Co. works closely with clients to understand their needs and recommend practical solutions that fit their homes or buildings..