BidSonarBidSonar
ContractsGrantsOrganisationsSectors
BidSonarBidSonar·Built by Hypership
SourcesBrandPrivacyTermsCookies

BidSonar is an independent index of public-sector opportunities. We aggregate data from official sources and are not affiliated with any procurement body. Data is licensed under the Open Government Licence v3.0 and the EU TED reuse notice.

    ContractsFacade Cleaning Services for Historic Buildings in Germany
    Closed contract

    Facade Cleaning Services for Historic Buildings in Germany

    Tender closed
    27 Aug 2025
    13 months ago

    This contract involves cleaning the facades of historic brick buildings. The scope of work includes: initial cleaning using high-pressure water (2,500 m²), creating sample areas, cleaning masonry and mosaics, removing general dirt using low-pressure methods (700 m²), removing lime-based stains with

    🇩🇪GermanyPublished 22 Jul 2025· 1 years agoviaTED
    Tender closed
    27 Aug 2025
    13 months ago
    Tender deadline passed on 27 Aug 2025.

    Decision brief

    4 fields
    • Contract value
      Not disclosed
      Source did not declare a figure
    • Tender closed
      27 Aug 2025
      1 years ago
    • Sector
      Construction
      Browse related listings
    • Location
      🇩🇪Germany

    Lifecycle

    Closed

    Tender closed on 27 Aug 2025. Awaiting award.

    22 Jul 2025Today27 Aug 2025

    Brief

    This contract involves cleaning the facades of historic brick buildings. The scope of work includes: initial cleaning using high-pressure water (2,500 m²), creating sample areas, cleaning masonry and mosaics, removing general dirt using low-pressure methods (700 m²), removing lime-based stains with acidic cleaning solutions (500 m²), removing urban dirt with facade cleaning paste (100 m²), protecting adjacent structures with a 0.5 mm protective film (750 m²), using catch basins for cleaning water made of tear-resistant film (300 m), installing neutralization systems and collection basins according to wastewater volumes (2 units), and disposing of generated cleaning wastewater, including registration and approval (2,500 m²). Additionally, cleaning decorative gables (20 units) is required.

    Track record

    8 awards · 8 winners
    Open field

    No single supplier dominates the field.

    In construction, STATE CAPITAL HANNOVER DEPARTMENT OF BUILDING MANAGEMENT has awarded 8 contracts to 8 suppliers.

    Who wins here
    1. Werkhausen Building Technology GmbH1× · 13%
    2. Keilberg Building Renovation GmbH & Co. KG1× · 13%
    3. BAU KALTENBERG GMBH1× · 13%
    4. WERKHAUSEN BUILDING TECHNOLOGY LTD1× · 13%
    5. KEILBERG BUILDING RENOVATION LLC CO KG1× · 13%
    6. Krapp Gate and Door Technology I GmbH1× · 13%

    +2 more suppliers

    Across construction, the most active winners are HOLCIM UK LIMITED, TARMAC TRADING LIMITED, LINDUM GROUP LIMITED — the field to beat, or your route in as a partner.

    More from STATE CAPITAL HANNOVER DEPARTMENT OF BUILDING MANAGEMENT

    4 listingsView all →
    Construction🇩🇪Germany

    Installation of Doors, Windows, and Partitions

    The project involves the construction of a building that will adhere to the certification standards set by the German Sustainable Building Council (DGNB) according to the 2018 New Building Criteria Catalog and the usage profile for new educational buildings. The contractor is required to meet the co

    STATE CAPITAL HANNOVER DEPARTMENT OF BUILDING MANAGEMENT
    Published 23 Oct 2025
    AwardedConstruction🇩🇪Germany

    Facade Cleaning Services for Historic Buildings in Germany

    This contract involves cleaning the facades of historic brick buildings. The scope of work includes: initial cleaning using high-pressure water (2,500 m²), creating sample areas, cleaning masonry and mosaics, removing general dirt using low-pressure methods (700 m²), removing lime-based stains with

    €96,842STATE CAPITAL HANNOVER DEPARTMENT OF BUILDING MANAGEMENT
    Published 7 Oct 2025
    Construction🇩🇪Germany

    Construction Works for Drainage Systems

    The Herschel School is expanding to include an additional grade level. This project involves constructing extensions to the existing building as well as a new building. To accommodate these extensions, existing foundation lines will need to be relocated.

    STATE CAPITAL HANNOVER DEPARTMENT OF BUILDING MANAGEMENT
    Published 21 Sept 2025
    AwardedConstruction🇩🇪Germany

    Building Painting Services in Germany

    This contract involves the initial coating of approximately 1000 square meters of suspended ceilings, both perforated and non-perforated, as well as the initial coating of wooden post-and-beam facades, both inside and outside. The work is to be carried out in several construction phases.

    €25,770STATE CAPITAL HANNOVER DEPARTMENT OF BUILDING MANAGEMENT
    Published 18 Sept 2025

    Open in Construction

    4 open listingsView all →
    OpenConstruction🇬🇧United Kingdom

    Ground Investigation Framework Agreement - 5 Lots for Major Infrastructure and Maintenance Projects

    Anglian Water seeks qualified suppliers for an 8-year Ground Investigation Framework Agreement worth £29.5 million across 5 lots, supporting major water infrastructure projects and smaller maintenance work.

    est.£29,537,750ANGLIAN WATER SERVICES LIMITED
    Published 30 Sept 2026
    Construction🇬🇧United Kingdom

    Ventilation and Air Handling System Refurbishment Services

    TEC Partnership seeks experienced contractors to refurbish ventilation, air handling, and exhaust systems across its education and training network sites.

    TEC PARTNERSHIP
    Published 30 Sept 2026
    OpenConstruction🇮🇪Ireland

    HVDC Interconnector Construction Contracts - Ireland and Wales Electricity Link

    Tender for construction of a 750 MW subsea and underground HVDC electricity interconnector linking Wales and Ireland, with four separate EPC contracts covering converter stations and cable systems.

    est.€1,000,000,000MaresConnect Limited (MCL)
    Published 30 Sept 2026
    Construction🇮🇪Ireland

    Connolly Station Capacity Enhancement Design and Build Contract

    Design and Build Contractor required to deliver major capacity enhancement and modernization works at Dublin's Connolly Station while managing operations in a live railway environment.

    est.€34,000,000Iarnród Éireann - Irish Rail
    Published 30 Sept 2026
    Take action
    View on sourceTED

    Original closed notice on the publisher's site

    Publisher
    Publications Office of the European Union
    Licence
    EU 2011/833/EU + TED reuse notice
    Source
    ted.europa.eu
    Record ID
    480829-2025
    SC
    Buyer
    STATE CAPITAL HANNOVER DEPARTMENT OF BUILDING MANAGEMENT
    Sector
    Construction