Building construction; repair; installation services; advisory services relating to building including heating and cooling buildings; air conditioning apparatus installation and repair (including all types of air-conditioning systems but not limited to ducted, inverter, multi-split, split and standalone systems); apparatus installation and repair; cooling, heating, insulating, ventilating and sanitation equipment installation and repair; installation of apparatus for air-conditioning and heating systems including central cooling/heating, ducted cooling/heating, inverter cooling/heating, reverse cycle cooling/heating, split cooling/heating and standalone cooling/heating systems and apparatus; cleaning of machines including air-conditioning and cooling machines and associated apparatus and systems; cooling equipment installation; cooling equipment installation and repair; cooling equipment repair; diagnosis of faults; diagnostic maintenance services; duct and pipe laying services; installation of apparatus for air-conditioning, heating, insulation, sanitation and ventilation; installation of electrical apparatus, electronic apparatus, cooling and heating apparatus, industrial plant, instrumentation systems, insulating materials, machines, pipelines, roofing, sanitary apparatus, solar energy systems, telecommunications apparatus, window coatings and window films; insulation of ceilings, ducts, pipes, roofing and walls; machinery installation services; machinery installation, maintenance and repair; machinery maintenance services; maintenance and repair of cooling, drying, heating, industrial apparatus, instruments, pipelines and ventilating apparatus; maintenance of refrigeration (including domestic, commercial and industrial), drying installations, heating, insulation and plumbing; maintenance of electronic measuring, monitoring and testing devices; maintenance, installation and repair of electrical items and equipment; maintenance, installation and repair of household items and equipment; maintenance, installation and repair of industrial apparatus and instruments; mechanical ventilation services being the maintenance, repair and installation of fan forced circulation and ducted systems; providing information, including online, about building construction, and repair and installation services; rebuilding engines and machines that have been worn or partially destroyed; re-calibration and refurbishment services; repair information; repair of electrical appliances, electronic apparatus, electronic business equipment, engines, cooling, heating, freezers and refrigeration; repair, maintenance and installation advisory services; repair, maintenance and installation consultancy services; supply, installation, repair, maintenance and servicing of domestic, commercial and industrial systems and apparatus including air-conditioning, cooling, heating, ventilating, insulating and refrigerating equipment, apparatus and systems; preventative maintenance programs for air-conditioning, heating, insulating, ventilating and sanitation apparatus and systems; residential, commercial and industrial installation and repair of electrical and computer wiring and cabling; servicing of apparatus, equipment and machines; supervision of building construction, building repair, building work and construction; double glazing installation; drainage services; electrical apparatus installation; electrical apparatus repair; electrical engineering services (construction); electrical installation services; electrical wiring services; fire alarm installation; fire alarm installation and repair; fire protection sprinkler system installation, maintenance and repair; handyman repair, maintenance and installation services; heating equipment installation; heating equipment installation and repair; heating equipment repair; home maintenance services; home repair services; industrial cleaning services; irrigation devices installation and repair; plant hire, installation, maintenance, refurbishment and repair; project preparation relating to building renovation, civil engineering, construction engineering and demolition; providing information, including by electronic means and via a global computer network, about all of the aforesaid services