Renovation of the main entrance stairs and partial waterproofing of basement walls at the assembly hall of School Complex No. 3

Summary

The tender concerns renovation of the main entrance stairs of the assembly hall at School Complex No. 3 in Kędzierzyn-Koźle, including partial waterproofing of the basement walls. The works include demolition and construction of reinforced-concrete stairs, drainage-channel works, masonry, waterproofing, granite cladding, railings, drainage installations, site organisation, as-built documentation and waste management. The building remains in use and is listed in the municipal heritage register, so the works must be organised safely and with minimal disruption. The contract period is 45 days and bids must be submitted electronically through the e-ProPublico platform by 14 September 2026 at 00:00. The award criteria are price at 60% and the extended warranty period at 40%; warranties shorter than 60 months are rejected, while periods of 84 months or more receive the maximum warranty score.