Recurring maintenance cleaning and glass cleaning in Hans Sachs House in Gelsenkirchen in 2 lots. in the urban area Gelsenkirchen (over 24 months + optional extension for an additional 24 months).
Glass and frame cleaning in the premises of the State Office Road NRW throughout the national territory, divided into 8 regional lots.
The performance is to take place from the 01/04/2016 and has been for at least 2 years (plus 2 x 1 year Extension options) awarded.
Implementation of the cleaning is done twice a year (April and October).