Cleaning and window washing of technical facilities

Summary

The tender concerns cleaning and window-washing services in technical facilities, including wastewater treatment plants, wastewater pumping stations, polder pumping stations and workshops within the management area of Waterschap Rivierenland. The contract is divided into lots, with one supplier intended per lot and a maximum of three lots that may be awarded to one supplier. Services are planned from 1 January 2027 to 31 December 2030, with up to four one-year extensions for the lots where stated. The estimated total value is EUR 1,200,000, and tenders must be submitted by 16 October 2026 at 10:00. Electronic submission is allowed, electronic invoicing is required, and electronic catalogues are not allowed.