Knox's Construction, family owned and operated roofing company, has been repairing roofs and replacing roofs since 2002. Our roofers are trained, and we are a CertainTeed SELECT Shingle Master. We offer a 25-year workmanship warranty on all roof installations. You can trust Knox with your roof replacement or repair. We assist you through the entire roofing process. Roof inspection, shingle selection and overview of your roofing project, roofing cost, protecting your home and family during construction to professional cleanup of all roofing debris and materials. We operate out of Pittsburgh, but we also serve the communities of Washington, Canonsburg, Venetia, Cranberry, Wexford, Upper St. Clair, Fox Chapel, Allison Park, and Waynesburg.