Solar Group, Inc. began in 1957 as Solar Hardware Company. Early products included door and window hardware and metal adjustable shelving. In 1976 the company began manufacturing home ventilation products under the AMPCOR name. Then in 1982 a new division called Southern Gemini was added to manufacture mailboxes. In 1988 EFI wood fasteners became part of the company's product offering. At that time all four divisions: SOLAR HARDWARE, AMPCOR, SOUTHERN GEMINI, and EFI were brought together under one name, THE SOLAR GROUP.