Extension of Hünxe School Centre – underground ventilation ducts

Summary

The tender covers the supply and installation of underground ventilation ducts for the extension of the Hünxe School Centre. The works include insulated underground air ducts, bends, reducers, connection collars, seals, end pieces and a structural calculation, together with testing, commissioning and final documentation. The works must be carried out while the school remains in operation. The tender is an open procedure. The deadline for electronic submission is 13 October 2026 at 10:00. Price is the only award criterion. The bid must be submitted in German and comply fully with the bill of quantities and the technical requirements, including the specified dimensions, materials, insulation, tightness and applicable standards.