Sewer relining and partial liners WF7 2026–2030 (2031–2034)

Summary

The tender concerns a framework agreement with one contractor, lasting up to 8 years, for trenchless sewer renovation, including the relining and treatment of partial liners for approximately 26,700 metres of sewer in seven West Friesland municipalities. The estimated value is EUR 7,690,000 and the maximum value is EUR 10,000,000 excluding VAT. The initial term is 4 years, with two possible 2-year extensions, ending no later than 31 October 2034. Tenders must be submitted electronically by 30 September 2026 at 12:00. The successful bidder must meet clean and emission-free construction requirements, use the clean equipment committed in its tender, and comply with a 1% social return obligation. Tenders are evaluated on the best price-quality ratio; sustainability is the main quality criterion, and the bidder with the lowest fictitious tender price will be awarded the contract.