Independent Overhead Doors is a Family Run Business With Over 25 Years of Experience. Contact Us for Free Consultations! We Provide Professional Garage Door Sales, Service, Repairs, and Installations High Speed Doors, Rolling Steel Doors, Sectional Doors, Dock Levelers, Edger Docks, Bumpers, Dock Seals, Dock Shelters. We strive for complete customer satisfaction and our skilled technicians only use the highest quality parts and materials. We take pride in our fast quality services. We service Londonderry, Rockingham County, Hillsborough County, Merrimack County, Strafford County & surrounding areas.