37 Construction, inspection in the course of construction, maintenance and repair of port equipment, namely, wharfs, river stopping points, namely residential private docks, landing platforms namely walkways and bridges and marinas; waste cleaning services being removal of waste; construction, inspection in the course of instruction, maintenance and repair of buildings in the field of purification installation; maintenance, repair and reconditioning of photovoltaic facilities and apparatus; installation of ground anchors; building construction supervision; providing information on construction; construction, upkeep and maintenance services for real estate properties, buildings, marinas, factories, ports, bridges and tunnels; demolition of buildings; scaffolding repair and erection; real estate construction and development of commercial, residential and hotel property; maintenance and repair of buildings and structures; services for assignments as main contractors, agents for main contractors and project owners, namely, supervision and management of construction work; supervision and management of construction works with a sustainable development and energy-saving approach; road paving; road maintenance and cleaning; installation, repair and maintenance services for viaducts, oil pipelines, dikes, locks, irrigation devices; earthworks services in the nature of building of embankments; dredging; drilling of wells and tunnels; earth works services in the nature of excavating for building construction; construction, cleaning, and maintenance services for car parks, railways and roads; construction and maintenance services for thermal, electric and wind power plants; construction, cleaning and maintenance services for utilities in the nature of heating, air-conditioning, electric and monitoring installations; construction of civil engineering structures; construction consultancy; asbestos removal