commercial estate construction; renovation and maintenance of shopping centres, industrial complexes, office buildings, residential buildings and other real estate developments; real estate development [building and construction services]; building and construction services provided by real estate entrepreneurs; residential construction; residential and building construction consulting; on site building project management; construction, maintenance and renovation of buildings; construction of residential buildings; construction, repair and maintenance of buildings; building dismantling; supervision of building construction; providing online information relating to building construction; apartment building construction; building construction advisory services; civil engineering construction; electrical installation services; installation of electrical wiring for buildings; installation of plumbing; plumbing services; tile laying, bricklaying or block laying; bricklaying; glazing services; glazing of windows; painting; flooring services; general building contractor services; roofing contractor services; construction engineering services [construction consultancy]; installation of fittings for buildings; installation, maintenance and repair of fire, smoke and heat alarms; installation of heating systems; installation of air-conditioning systems; installation of doors and windows; installation of security and safety equipment