Source: https://tendernation.io/opportunities/01a14065-ac87-712d-ba08-b6d8f00c67a8/poland-sewage-treatment-plant-construction-work-zaprojektowanie-i-budowa-ins closed PL open procedure Suitable for SMEs # Sewage-treatment plant construction work – Zaprojektowanie i budowa instalacji zwiększających odporność na wysokie obciążenia hydrauliczne w ciągach biologicznych OŚ Czajka przy ul. Czajki 4/6 w Warszawie, Dzielnica Białołęka [Miejskie Przedsiębiorstwo Wodociągów i Kanalizacji w m. st. Warszawie S.A.](https://tendernation.io/buyers/miejskie-przedsiebiorstwo-wodociagow-i-kanalizacji-w-m-st-warszawie-sa) Estimated value Not stated Published 23 Sept 2026 Deadline Closed 12 Oct 2026 ## Who can bid - Buyer says suitable for SMEs The buyer ticked “suitable for SMEs” on the notice. Anyone can still bid. - Open procedure Anyone can submit a full tender; there is no shortlisting stage. [More contracts for small businesses and VCSEs](https://tendernation.io/opportunities/for-small-businesses) ## About this tender Zaprojektowanie i budowa instalacji zwiększających odporność na wysokie obciążenia hydrauliczne w ciągach biologicznych OŚ Czajka przy ul. Czajki 4/6 w Warszawie, Dzielnica Białołęka ## CPV classification Sewage-treatment plant construction work Works for complete or part construction and civil engineering work Wastewater treatment plant construction work Architectural, construction, engineering and inspection services Engineering services Engineering design services Site preparation work Sewerage work Sedimentation installations Purification plant equipment Electrical installation work Electrical installation work of electrical distribution apparatus Miscellaneous software package and computer systems Source Tenders Electronic Daily (EU) · Notice 654715-2026 [View official notice](https://ted.europa.eu/en/notice/654715-2026) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. [Track tenders free](https://tendernation.io/register) [Buyer profile Miejskie Przedsiębiorstwo Wodociągów i Kanalizacji w m. st. Warszawie S.A.: past awards and live tenders](https://tendernation.io/buyers/miejskie-przedsiebiorstwo-wodociagow-i-kanalizacji-w-m-st-warszawie-sa) [Sector More Construction work tenders](https://tendernation.io/sectors/construction-work) ## More tenders like this [Boiler Replacement Scheme · West Yorkshire Fire and Rescue Authority · 59 days left · 18 Dec 2026](https://tendernation.io/opportunities/01a1599c-ca0f-7129-83ab-7f5da966bec5/boiler-replacement-scheme) [Building Repairs & Maintenance Lot 1 Electrical Lot 2 Mechanical · Derbyshire Dales District Council · 40 days left · 29 Nov 2026](https://tendernation.io/opportunities/01a15934-2662-73b5-8d63-abd6e1946ccd/building-repairs-maintenance-lot-1-electrical-lot-2-mechanical) [Repairs and Maintenance of Derbyshire Dales District Council Buildings, Lot 1 Electrical, Lot 2 Mechanical · Derbyshire Dales District Council · 41 days left · 30 Nov 2026](https://tendernation.io/opportunities/01a1599c-cc30-708e-a64f-c24f3506b98b/repairs-and-maintenance-of-derbyshire-dales-district-council-buildings-lot-1-el) [CA18585 - ITT Repair and replacement works to whole site drainage system · Diocese of Norwich Education and Academies Trust · 39 days left · 27 Nov 2026](https://tendernation.io/opportunities/01a1594a-591e-7334-8085-35e92dcd67f8/ca18585-itt-repair-and-replacement-works-to-whole-site-drainage-system) [ITT Repair and replacement works to whole site drainage system · Diocese of Norwich Education and Academies Trust · 39 days left · 27 Nov 2026](https://tendernation.io/opportunities/01a1599c-ce3a-73b2-824c-27858f3ac6b5/itt-repair-and-replacement-works-to-whole-site-drainage-system) [Bannister Sports Centre Athletic Track Soft Market Testing Exercise · Harrow Council · 37 days left · 26 Nov 2026](https://tendernation.io/opportunities/01a1540d-d9e4-71cb-ad57-1603e9042fec/bannister-sports-centre-athletic-track-soft-market-testing-exercise)