1) Class: 37
Description: advisory services relating to the installation of plumbing, plumbing maintenance advisory services, advisory services relating to the maintenance of plumbing, plumbing installation advisory services, plumbing repair advisory services, advisory services relating to the repair of plumbing, repair of water supply apparatus, installation, maintenance and repair of water supply apparatus, routine servicing of heating apparatus, repair or maintenance of water purifying apparatus, installation and repair of bathroom heating devices, routine servicing of ventilating apparatus, emergency servicing of water supply apparatus, repair of water purifying apparatus, installation of apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes, repair of apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes, installation and repair of heaters for baths, toilet [water-closet] installation and repair, installation of apparatus for sanitation, installation and repair of toilets [water-closets], maintenance and repair services of public utilities in buildings, maintenance of bathtubs, installation of heating, lighting and cooking apparatus, repair of energy supply installations and of apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes, routine servicing of refrigerating apparatus, installation and repair of water closets, installation of apparatus for heating, water closet installation and repair, routine servicing of air-conditioning apparatus, services for the washing of buildings, installation and repair of heating, installation of utilities in construction sites, installation, maintenance and repair of heating apparatus, shower installation and repair, heating installation and repair, routine servicing of drying apparatus, maintenance and repair of heating installations, repair or maintenance of water purifying apparatus and providing information relating thereto, repair and maintenance of heating apparatus, building washing, maintenance and repair of heating apparatus, installation, maintenance and repair of household apparatus and appliances, repair or maintenance of water purifying apparatus and provision of information relating thereto, road cleaning services, cleaning of building sites, installation of plumbing, maintenance of plumbing, plumbing services, repair of plumbing, installation of plumbing systems, plumbing and glazing services, installation of plumbing, gas and water systems, plumbing and installation of gas and water distribution networks, installation of plumbing, gas and water networks, underground construction works relating to plumbing, maintenance of apparatus for purifying water, installation, maintenance and repair of gas, electricity and water supply apparatus, installation of water supply apparatus, repair of apparatus for purifying water, installation of equipment and apparatus for gas and water supply, repair of gas and water installations, plumbing installation, maintenance and repair, plumbing, installation, maintenance and repair of gas and electricity systems, installation of gas and water pipelines, underground construction works relating to gas supply mains, maintenance of electricity, gas and water distribution networks, maintenance and repair of gas and electricity installations, repair and maintenance of gas and electricity installations, installation of gas supply and distribution apparatus, repair or maintenance of gas water heaters, underground construction works relating to gas supply pipes, repair of gas supply systems, installation, maintenance and repair of apparatus for supplying gas, maintenance of water purifying apparatus, gas supply system repair, installation of apparatus for supply and distribution of gas, construction of structures for the transportation of natural gas, installation, maintenance and repair of gas supply apparatus, construction of structures for the storage of natural gas, maintenance services of electricity, gas and water distribution networks, cleaning of wall surfaces, cleaning of residential houses, house cleaning, cleaning of windows, cleaning of industrial facilities, wall surface cleaning, dry-cleaning, cleaning of toilets, cleaning of houses, cleaning of offices, waste removal [cleaning], cleaning and disinfecting of garbage chutes, waste disposal for others [cleaning service], cleaning of bathrooms, removal of waste [cleaning], cleaning of industrial premises, cleaning of residential and commercial properties, cleaning services, cleaning of restrooms, window cleaning, maintenance of cleaning machines, cleaning of facades, cleaning of commercial premises and offices, cleaning of boilers, toilet cleaning services, restroom cleaning services, cleaning of laundry washing machines, provision of cleaning services, floor cleaning services, domestic cleaning, gas drilling, drilling of gas wells, gas drilling services, fueling of hydrogen gas for vehicles, roofing installation, roof construction, installation of roofing, maintenance of roofing, roofing services, roofing repair, roofing maintenance, repair of roofing, roof maintenance, roof installation, roofing construction services, restoration of roofing, roofing maintenance services, roofing contractor services, roof repair, roof construction services, services of a roofing contractor, roofing installation services, roofing restoration, repair of roofs, roofing repair services, roof tiling services, roof restoration, roof installation services, roof maintenance services, restoration of roofs, providing information relating to roofing installation and repair, roofing restoration services, insulating of internal and external walls, ceilings and roofs, provision of information relating to roofing installation and repair, installation of insulating materials in buildings, roofs and structures, insulation of internal and external walls, ceilings and roofs, roof repair services, roof restoration services, fireproofing of existing structures, waterproofing of basements, insulating of buildings, insulating buildings, construction of porches, construction of chimneys, repair and insulation of window joints, ceiling construction, thermal insulating of buildings, damp-proofing [building], building insulating, repair of windows, basement waterproofing, washing of buildings, damp-proofing of buildings, repair of water supply installations, installation of water pipes, underground construction works relating to water supply mains, road cleaning, cleaning of property, cleaning of roads, clearing and cleaning gutters, drain cleaning services, drain cleaning services by high pressure water jetting, septic tank pumping and cleaning, drainage services, cleaning of drains, cleaning of drains by high pressure water jetting, installation of rainwater drainage systems, rental of drainage pumps, underground construction works relating to drain laying, underground construction works relating to water supply pipes, installation, maintenance and repair of sewerage systems, cleaning of urban areas, construction of roads, sewers and water supply systems, installation and maintenance of irrigation systems, installation of rainwater collection systems, cleaning of streets, cleaning of buildings [exterior surface], installation of pipes, plumbing and installation of gas and water pipelines, pipe installation, pipe installation services, pipeline installation