Class 037
Construction and Repair Services
Plumbing services; installation, maintenance and repair of duct work; duct cleaning services; installation, maintenance and repair of heating, ventilation and air conditioning (HVAC) systems; installation, maintenance and repair of refrigeration systems; electrical contracting services; electrical repairs, maintenance, and installation of electrical wiring, outlets, lighting, electrical panels, electrical connectors, electrical junction boxes, electrical fuse boxes, electrical circuit breakers, and electric meters; electrical wiring services; installation of electrical systems; installation, maintenance and repair of control equipment for heating, ventilation and air-conditioning systems; installation, maintenance and repair of cable for communication networks.