Overhead Door of Norwich, Middlesex, Tolland and Windham county delivers quality commercial doors, entry and security gates, and hardware installation services to business owners throughout eastern Connecticut. We stock, install, and service industry-leading doors from top manufacturers, including Janus International, Porvene, and more. From insulated sectional steel to rolling service doors, our technicians can help you in the selection of the right door style for your property and business needs.