Guyette Roofing and Construction installs a GAF Systems Plus Warranty ( "The Lifetime Roofing System"). Guyette doesn't just install shingles, they provide a complete roof system. It's the periphery of the roof, not the field, where roof leaks usually occur. By ignoring the details, most roofers build leaks into the roof during the installation. Guyette Roofing and Construction provides a custom approach and a complete roof system to every roof installed.