Commercial Door Repair and Install. Storefronts automatic doors, commercial storefronts. Handyman service. Does your business need a new commercial door system? Does it require repairs? If so, call the experts at Epic Commercial Door Repair to help you out. For many years our team has helped our commercial clients in Chicago, Illinois, with top-quality service. We specialize in installing, repairing, & replacing commercial doors for a variety of businesses.