This group includes roofing, masonry, painting and other construction trade contractors, not elsewhere classified, who own and operate their own business. Supervisors in this group supervise and coordinate the activities of various tradespersons, installers, repairers and servicers classified in the following groups: Masonry and Plastering Trades, Other Construction Trades, and Other Installers, Repairers and Servicers.

These workers are employed by a wide range of establishments; places of employment are indicated in the unit group descriptions. This group also includes prefabricated product installation and service contractors and proprietors of some repair and service establishments.