There is NO roofer license or certification requirement by any government body in the Atlanta area. Roofers become certified voluntarily via shingle manufacturer certification programs if they want, but many do not. It is also optional to become a licensed General Contractor in the state of Georgia, but 95% of roofing companies choose not to do this. Dr Roof goes above and beyond and is a certified roofer with GAF, CertainTeed, and Tamko. Dr. Roof also has a General Contractors license in Georgia.