Roof renovation of the sports hall building in Nadarzyn under the Mazowsze dla sportu programme, 2026 edition

Summary

The tender concerns renovation of the roof of the sports hall building at 41 Żółwińska Street in Nadarzyn. The works include thermal insulation with polyurethane foam and an acrylic waterproof coating, waterproofing with heat-welded roofing felt, restoration of the lightning protection system, and modernization of ventilation, including new air-handling units and control systems. The works must be completed by 10 December 2026.\n\nBidders must provide evidence of at least two comparable roof-renovation projects, a qualified construction works manager, the required declarations and supporting documents, and a PLN 6,000 bid guarantee. Tenders must be submitted electronically in Polish by 18 September 2026 at 10:00. Price carries 60% and the quality guarantee and defect-liability period carries 40%.