Au pair services (household cleaning and maintenance services); building cleaning; car cleaning services; carpet cleaning; cleaning of building sites; cleaning of buildings (exterior surface); cleaning of buildings (interior); cleaning of commercial premises; cleaning of domestic premises; cleaning of drains; cleaning of floor coverings; cleaning of floor surfaces; cleaning of furnishings; cleaning of furniture; cleaning of hospitals; cleaning of hotels; cleaning of industrial premises; cleaning of leather; cleaning of motor vehicles; cleaning of offices; cleaning of property; cleaning of public buildings; cleaning of schools; cleaning of upholstery; cleaning of vehicles; cleaning of wall surfaces; cleaning services; domestic cleaning; domestic cleaning services; house cleaning services; industrial cleaning services; janitorial cleaning services; window cleaning; maintenance of plumbing; maintenance and repair of gas installations and equipment; repair of gas supply systems; pest control; air conditioning apparatus installation and repair; installation of apparatus for air-conditioning