37 Building services, namely building construction services; carpentry services; building construction and repair; building construction services, namely, construction of component parts of buildings in the nature of interlocking socketed chassis and frameworks for buildings, construction of prefabricated buildings, construction of garden office buildings, construction of office buildings, construction of studios, and summer houses and residential accommodation units; supervision of building construction and repair; supervision of building work in the nature of building construction; custom construction of buildings; residential and commercial building construction; on site project management relating to the construction of buildings; general building contractor services; construction services, namely, erection of prefabricated buildings; construction services, namely, assembly of prefabricated houses; construction services, namely, construction of prefabricated houses; construction services, namely, assembly in the nature of installation of building framework; building inspection in the course of building construction; drilling of wells; maintenance and repair of buildings, parts and fittings for buildings and utilities of buildings; property development, namely property construction; wiring of buildings for telecommunication transmission; building damp-proofing; application of protective coatings to building exteriors; application of protective coatings to building surfaces; application of protective paint to buildings; sealing of buildings during construction; building sealing; interior and exterior cleaning of buildings; specialist building restoration; refurbishment of buildings; repair and maintenance of building scaffolds, working and building platforms; building demolition, namely, dismantling of buildings; demolition of buildings; installation of electric appliances, alarms, burglar alarms, fire alarms, fire detection systems, safes and security systems; installation of bedrooms, kitchens, kitchen equipment, bathrooms and bathroom equipment; installation of access control systems; installation of flood warning systems; installation, changing, replacement and repair of locks; installation of apparatus for heating, lighting, air conditioning, central heating; installation of electronic and computerized systems for monitoring energy efficiency and usage; installation of environmental engineering systems; installation of pipework systems, sewers, drains, pipes and washroom apparatus; installation of lifts and elevators; computer hardware and telecommunication apparatus installation, maintenance and repair; computer installation services; preparation of a site for the installation of computer equipment; building construction services, namely, building fabrication and finishing services