Insulated sectional steel doors are the ideal solution for any business that requires temperature control; such as warehouse facilities, storage units, restaurants, fire stations, and municipal buildings. We offer an array of medium-duty and heavy-duty options for any commercial or industrial sectional door application.  Insulated overhead doors work to keep cold air in or out, depending on the need. In addition to the thermal benefits of insulated doors, they also provide quieter function and sturdier construction when compared to non-insulated alternatives.