Industries and Activities
NationalIndustry
Plumbing, Heating, and Air-Conditioning Contractors
activities

title	nationalIndustry
Air system balancing and testing	Plumbing, Heating, and Air-Conditioning Contractors
Air vent installation	Plumbing, Heating, and Air-Conditioning Contractors
Air-conditioning system (except window) installation	Plumbing, Heating, and Air-Conditioning Contractors
Bathroom plumbing fixture and sanitary ware installation	Plumbing, Heating, and Air-Conditioning Contractors
Blower or fan, cooling and dry heating, installation	Plumbing, Heating, and Air-Conditioning Contractors
Boiler chipping, cleaning and scaling	Plumbing, Heating, and Air-Conditioning Contractors
Boiler, heating, installation	Plumbing, Heating, and Air-Conditioning Contractors
Central air-conditioning equipment installation	Plumbing, Heating, and Air-Conditioning Contractors
Central cooling equipment and piping installation	Plumbing, Heating, and Air-Conditioning Contractors
Central heating equipment and piping installation	Plumbing, Heating, and Air-Conditioning Contractors
Chilled water system installation	Plumbing, Heating, and Air-Conditioning Contractors
Chimney liner installation	Plumbing, Heating, and Air-Conditioning Contractors
Commercial freezer installation	Plumbing, Heating, and Air-Conditioning Contractors
Commercial refrigeration system installation	Plumbing, Heating, and Air-Conditioning Contractors
Cooling tower installation	Plumbing, Heating, and Air-Conditioning Contractors
Drain, waste and vent system installation	Plumbing, Heating, and Air-Conditioning Contractors
Drinking fountain installation	Plumbing, Heating, and Air-Conditioning Contractors
Dry heating equipment installation	Plumbing, Heating, and Air-Conditioning Contractors
Duct work (e.g., cooling, dust collection, exhaust, heating, ventilation) installation	Plumbing, Heating, and Air-Conditioning Contractors
Dust collecting and bag house equipment installation	Plumbing, Heating, and Air-Conditioning Contractors