electric air conditioners; air conditioning apparatus for residences; combined heating and air conditioning apparatus; air-conditioning apparatus; air-conditioning installations; installations for air conditioning; gas generating installations; heating installations for use with gaseous fuels

installation of solar energy systems; heating equipment installation; electrical installation services; electrical wiring services; installation of electricity generators; heating equipment installation and repair; building and construction services; building maintenance; building repairs; maintenance and repair of gas installations and equipment

Air conditioning installations for commercial use; Air conditioning installations for industrial use; Air conditioning installations for residential use; Air conditioning installations for use in food processing; Domestic air conditioning installations; Installations for air conditioning; Air heating apparatus for commercial use; Air heating apparatus for industrial use; Air heating apparatus for residential use; Air heating installations for commercial use; Air heating installations for industrial use; Air heating installations for residential use; Central heating installations; Electric heating installations; Gas fired heating installations; Gas fired space heating installations; Gas fuelled central heating installations; Industrial heating installations; Installations for central heating; Installations for heating; Installations for the heating of air

Installation and repair of air conditioning apparatus; Installation and repair of air-conditioning apparatus; Installation of apparatus for air-conditioning