WestPro Roofing | Siding | Windows | Doors | Gutters At WestPro, we believe our Boulder County neighbors deserve a contractor they can count on. WestPro is locally owned & operated by two licensed contractors who have been best friends since high school. We love making our community better, one home at a time —1500 homes and counting! WestPro is a Top Rated Contractor specializing in Siding, Roofing, Windows, Doors, and Gutters. WestPro installs James Hardie Siding, GAF Roofing, Gutters, and ProVia Windows & Doors. We proudly serve homeowners, commercial buildings & HOAs in Boulder, Longmont, Denver, and surrounding communities. A+ BBB | 5 Star Reviews | Licensed & Insured | Local References | Lifetime Warranty