Maintenance of internal combined sewer risers and horizontal lines in the Royal Castle in Warsaw

Summary

The tender concerns maintenance of the internal combined sewer system in the Royal Castle in Warsaw: 26 risers with a diameter of 100 mm and a total length of 508.5 m, and 4 horizontal lines with a diameter of 200 mm and a total length of 112 m. The works must be completed by 18 December 2026. Price is the only award criterion, with a weighting of 100%. To participate, the bidder must have the required previous experience, submit a catalogue sheet for the polyurethane resin system, and attend the mandatory site inspection before submitting the tender.