Source: https://tendernation.io/opportunities/01a140a9-8f5d-70d4-9696-27cfe5d5ea4f/austria-heating-ventilation-and-air-conditioning-installation-work-awv-wels closed AT open procedure # Heating, ventilation and air-conditioning installation work – AWV Welser Heide BA25 - Erweiterung und Umbau Betriebsgebäude HKLS + MSR [Abwasserverband Welser Heide](https://tendernation.io/buyers/abwasserverband-welser-heide) Estimated value Not stated Published 3 Nov 2025 Deadline Closed 1 Dec 2025 ## Who can bid - Open procedure Anyone can submit a full tender; there is no shortlisting stage. ## About this tender Der Abwasserverband Welser Heide betreibt am Standort Kappern die Kläranlage Marchtrenk zur Reinigung und Entsorgung der im Einzugsgebiet des Abwasserverbandes anfallenden kommunalen Abwässer. Zweck des Vorhabens ist die Erweiterung und der vollständige Umbau des Betriebsgebäudes. Gegenstand des Vergabeverfahrens bzw. Leistungsumfang ist die Heizungs-, Klima-, Lüftungs- und Sanitärtechnik sowie die Mess-, Steuer- und Regeltechnik. ## CPV classification Heating, ventilation and air-conditioning installation work Source Tenders Electronic Daily (EU) · Notice 724080-2025 [View official notice](https://ted.europa.eu/en/notice/724080-2025) 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 Abwasserverband Welser Heide: past awards and live tenders](https://tendernation.io/buyers/abwasserverband-welser-heide) [Sector More Construction work tenders](https://tendernation.io/sectors/construction-work) ## More tenders like this [Bannister Sports Centre Athletic Track Soft Market Testing Exercise · Harrow Council · 38 days left · 26 Nov 2026](https://tendernation.io/opportunities/01a1540d-d9e4-71cb-ad57-1603e9042fec/bannister-sports-centre-athletic-track-soft-market-testing-exercise) [Treloweth Community Hall Alterations and Extension Project · Carn Brea Parish Council · 49 days left · 7 Dec 2026](https://tendernation.io/opportunities/01a154e4-4991-71db-baac-ffae413f1c41/treloweth-community-hall-alterations-and-extension-project) [Norwich City Verges Mowing 2026 · Norse Eastern Ltd · 30 days left · 18 Nov 2026](https://tendernation.io/opportunities/01a15476-5fd9-70eb-b920-a66dc3e661e1/norwich-city-verges-mowing-2026) [Gwasanaethau Toeau - Gwaith cyfalaf wedi'i gynllunio ac atgyweiriadau ymatebol / Roofing Services - Planned capital works and responsive repairs · Denbighshire County Council · 28 days left · 16 Nov 2026](https://tendernation.io/opportunities/01a15476-6094-72b9-928b-5c887e7ceea4/gwasanaethau-toeau-gwaith-cyfalaf-wedii-gynllunio-ac-atgyweiriadau-ymatebol) [Repair of St Michaels and All Angels Church Wall · Aylsham Town Council · 31 days left · 19 Nov 2026](https://tendernation.io/opportunities/01a15476-6316-7235-8948-8f108b3da399/repair-of-st-michaels-and-all-angels-church-wall) [Building Minor Works · Derbyshire Support and Facilities Services Limited · 26 days left · 13 Nov 2026](https://tendernation.io/opportunities/01a15408-9087-7003-bd47-df7bc19d7ff7/building-minor-works)