Goods & Services
Class 37:
air duct cleaning services; installation of central heating systems; installation, maintenance and repair of cooling and air-conditioning systems for temperature-controlled environments; installation of heating and cooling apparatus; installation of heating systems; cleaning of air conditioners; maintenance and repair of cooling appliances and installations; maintenance and repair of heating systems; installation and repair of heating, ventilating and air-conditioning systems; installation, maintenance and repair of HVAC [heating, ventilation and air conditioning] systems; installation of heating, ventilation and air-conditioning systems; installation of air-conditioning systems; retrofitting of heating installations in buildings; retrofitting of air-conditioning installations in buildings
