Operational since 1984, Preferred Electric Co. Inc. is into providing electrical installations. Based in Charlotte, N.C., it operates as a full-service company offering expertise in electrical construction, service and voice/data cabling systems. Some of its work includes installation of generators, automatic transfer switches as well as pulling and terminating fiber optics, data cable, and fire alarm devices. In addition, the firm provides maintenance and electrical engineering services. Customers of Preferred Electric Co. Inc. are First Union, Piedmont Natural Gas, Providence Day School, Charlotte Catholic, Duke Energy and many more.