Building construction, repair and installation services; construction consultancy; building construction supervision; electric appliance installation and repair; installation, maintenance and repair of heating equipment, air-conditioning apparatus, doors, windows; vehicle battery charging apparatus; electrical services, building refurbishment; facilities management including mechanical, electrical, heating, ventilation, air-conditioning, refrigeration, and drainage services; design and installation of heating, ventilation and electrical installation services; project management of building construction, repair and installation services.;