Upgrade of heating and domestic hot water systems and construction of a heat substation at the residential property at Siedlecka 41

Summary

The tender covers the conversion of basement rooms at the residential property at Siedlecka 41 in Warsaw for a heat substation, the extension of the central-heating and domestic-hot-water systems, construction or modernisation of the heat substation, replacement of water-supply and sewerage installations, and related electrical and finishing works. The contract period is 240 days. The tender submission deadline is 5 October 2026. The bidder must have liability insurance of at least PLN 1,000,000, the required previous construction experience, three qualified works managers covering the relevant disciplines, and at least six employees working at no less than 0.5 full-time equivalent. Tenders will be evaluated on price (60%) and warranty period (40%). If at least two admissible tenders are submitted, the contracting authority may conduct an electronic auction in which the only variable to be bid is the total gross price for the works.