Implementation of cleaning services in the senior citizens' and disabled facilities operated by SBK Sozial-Betriebe-Köln gemeinnützige GmbH at the locations Cologne-Mülheim (Municipal Senior Citizens' and Disabled Centre Cologne-Mülheim), Cologne-Riehl (Municipal Senior Citizens' and Disabled Centre Cologne-Riehl including outdoor residential group Hamborner Str.) and Cologne-Longerich (Municipal Centre for the Disabled Dr. Dormagen Guffanti Cologne-Longerich)

Carrying out maintenance cleaning and basic cleaning once a year in the Municipal Senior Citizens' and Disabled Centre Cologne-Mülheim, House 1 with a total area of 4,084.90 m². Average total daily area to be cleaned 1,713.02 m².

Carrying out the twice-yearly window and frame cleaning including insect screens and every two years cleaning of the external blinds in the Municipal Senior Citizens' and Disabled Centre Cologne-Riehl (including outdoor living group Hamborner Str.) with a total area of 13,755.80 m² of glass and frame area, 91.72 m² of plastic facing / canopy, 978.59 m² of lattice windows including frames, 73.57 m² of ornamental windows including frames, 70 insect screens and 6,646.86 m² Exterior blinds and in the Municipal Centre for the Disabled Dr. Dormagen Guffanti Cologne-Longerich with a total area of 142.40 m² of glass and frame area and 569.60 m² of lattice windows including frames.