1) Class: 37
Description: maintenance of apparatus for purifying water, rental of drainage pumps, underground construction works relating to water supply mains, laying of pipes, roofing installation, installation of utilities in construction sites, installation of roofing, construction of transmission lines, construction work relating to the installation and maintenance of electrical systems, pipe-laying services, installation, maintenance and repair of gas and electricity systems, pipe laying services, roof installation, roofing maintenance services, installation of pipe insulation, pipe installation services, roofing installation services, masonry services, installation services, building washing services, kitchen installation services, roofing services, heating system installation, repair and maintenance services, providing information relating to bathtub and bath boiler cleaning services, electrical installation services, electrical wiring services, construction services, hydraulic construction services, apartment refurbishment services, installation of water supply apparatus, underground construction works relating to plumbing, installation of plumbing systems, advisory services relating to the installation of plumbing, plumbing installation advisory services, installation of plumbing, emergency servicing of water supply apparatus, emergency servicing of gas supply apparatus, emergency servicing of apparatus for supplying electricity, installation, maintenance and repair of gas, electricity and water supply apparatus, installation of equipment and apparatus for gas and water supply, installation, maintenance and repair of automatic emergency exits, laundry services, cleaning services, industrial and commercial cleaning services, mobile structure cleaning services, housekeeping services [cleaning services], housekeeping services [cleaning], pressure washing services, housekeeping [cleaning] services, shop cleaning services, toilet cleaning services, contractual office cleaning services, window cleaning services, cleaning services of floor surfaces, office cleaning services, floor cleaning services, restroom cleaning services, hotel cleaning services, cleaning of commercial premises and offices, installation of rainwater drainage systems, provision of cleaning services, house cleaning services, waste disposal for others [cleaning service], cleaning of bathrooms, house cleaning, cleaning of toilets, cleaning of shops, cleaning of houses, cleaning of facades, cleaning of structures, cleaning of urban areas, cleaning of residential and commercial properties, cleaning of residential houses, cleaning of public areas, cleaning of property, cleaning of wall surfaces, wall surface cleaning, cleaning and disinfecting of garbage chutes, installation of rainwater collection systems, building cleaning, cleaning of buildings, cleaning of industrial facilities, public building cleaning, cleaning of public buildings, cleaning of offices, cleaning of buildings [exterior surface], septic tank cleaning, office cleaning, cleaning of building sites, cleaning of restrooms, waste disposal being cleaning services [environmental remediation services], cleaning of external surfaces of buildings, cleaning of exterior surfaces of buildings, public building cleaning services, cleaning of building exterior surfaces, services for the cleaning of buildings, cleaning of building glass facades, cleaning of building exteriors, exterior wall surface cleaning, cleaning of buildings [interior], pipe installation, installation of pipes, installation of water pipes, underground construction works relating to water supply pipes, insulation of pipes, installation of plumbing, gas and water networks, installation of plumbing, gas and water systems, repair of apparatus for purifying water, roofing repair, repair of roofing, laying, repair, maintenance, replacement and refurbishment of pipelines, repair of energy supply installations, repair of power lines, laying, repair, maintenance, replacement and refurbishment of gas pipelines, repair of power generating apparatus and installations, roof repair, boiler repair services, repair services, advisory services relating to the repair of plumbing, repair of heating, air-conditioning and alarm installations, plumbing and glazing services, plumbing services, construction of roads, sewers and water supply systems, construction of sewerage systems, cleaning of streets, street cleaning, underground construction works relating to sewers, street cleaning services, wall surface cleaning services, cleaning and disinfection services of garbage chutes, plumbing and installation of gas and water pipelines, plumbing and installation of gas and water distribution networks, repair of gas supply systems, repair of bathtubs, shower installation and repair, pump repairing, repair of pipettes, gas supply system repair, concrete repair, repair services for irrigation systems, concrete repairs, pump repair, repair of sanitary apparatus, repair of bath tubs, gas supply system repair services, bidet repair, repair of pumps, repair of laundry washing machines, repair of flood protection equipment, repair of industrial waste treatment machines, repair of fire damage, repair of bidets, road repair, servicing and repair of pipettes, pipeline installation and repair, gas pipeline maintenance and repair, pipeline maintenance and repair services, underwater repair, repair and maintenance of sanitary apparatus, roofing repair services, repair of heating systems, repair of concrete pavements, repair of toilet bowls with integrated bidet water jets, repair or maintenance of gas water heaters, concrete repair services, maintenance and repair services for gas pipelines, roof repair services, repair of construction equipment, installation and repair of showers, repair or maintenance of bath tubs, building repair, repair of roofs, gas pipeline maintenance and repair services, repair of construction machines and equipment, maintenance of water purifying apparatus, roofing maintenance, maintenance of electricity, gas and water distribution networks, maintenance of roofing, roof maintenance, construction, repair, maintenance and installation services, advisory services relating to the maintenance of plumbing, maintenance services, plumbing maintenance advisory services, cleaning of roads, underground construction works relating to drain laying, repair of water purifying apparatus, repair of gas and water installations, repair of electrical equipment and electrotechnical installations, repair and maintenance of gas and electricity installations, maintenance and repair of gas and electricity installations, repair and maintenance of energy generating installations, construction, repair and maintenance of power plants, maintenance and repair services of public utilities in buildings, repair, maintenance and installation services, repair or maintenance of water purifying apparatus, installation, maintenance and repair of water supply apparatus, repair of water supply apparatus, installation, maintenance and repair of emergency exits, maintenance services of electricity, gas and water distribution networks, installation, cleaning, repair and maintenance services, construction, maintenance, cleaning and repair services, maintenance of plumbing, plumbing repair advisory services, plumbing installation, maintenance and repair, septic tank pumping and cleaning, installation and repair of toilets [water-closets], repair of sanitary installations, repair of plumbing, repair of water supply installations, installation, maintenance and repair of sewerage systems, repair of garbage disposals, repair, repair and maintenance of sanitary installations, toilet [water-closet] installation and repair, repair of vacuum cleaners, maintenance and repair of sanitary installations, installation and repair of garbage chutes, pipeline maintenance and repair, water closet installation and repair, installation and repair of water closets, pump repair or maintenance, repair or maintenance of water pollution control equipment, repair or maintenance of bathtubs, pump repair and maintenance, maintenance and repair of pipelines, maintenance and repair, repair or maintenance of conveyors, repair and maintenance services, maintenance of cleaning machines, maintenance of sanitary installations, maintenance and repair of watercraft, road maintenance, installation, maintenance and repair of cleaning machines, maintenance and repair of electrical appliances, maintenance and repair of water vehicles, repair and maintenance of electrical appliances, pipeline maintenance, repair and maintenance of vacuum pumps and parts thereof, repair and maintenance of vacuum pumps, maintenance of floors, maintenance and repair of air conditioners, maintenance and cleaning of buildings, installation, maintenance and repair of vacuum pumps, maintenance of pipelines, installation and maintenance of irrigation systems, building maintenance, installation, maintenance and repair of pumps, pipeline construction and maintenance, roof maintenance services, cleaning of exterior wall surfaces, cleaning of drains, cleaning of drains by high pressure water jetting, drainage services, road cleaning, drain cleaning services, drain cleaning services by high pressure water jetting, plumbing