Cleaning services; office cleaning services; cleaning of commercial premises; cleaning of buildings (interior and exterior surface); industrial cleaning services; carpet cleaning; window cleaning; polishing (cleaning) of floors; waste removal (cleaning); deodorising and disinfecting services; disinfection of premises; sanitation (cleaning services) installation of apparatus for sanitation; maintenance services; building maintenance; floor maintenance services; furniture maintenance; removal of graffiti; advisory services for cleaning and maintenance