BidSonarBidSonar
ContractsGrantsOrganisationsSectors
BidSonarBidSonar·Built by Hypership
SourcesPrivacyTermsCookies

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.

    ContractsHeating System Installation and Modernization
    Awarded contract

    Heating System Installation and Modernization

    Awarded
    €416.2k
    Published 6 Jul 2025

    The City of Karlsruhe is seeking suppliers for the installation and modernization of a heating system at the Technical Center of the Carpentry Department. The project includes the following key components: - Installation of a heating system using a 100 kW pellet boiler and a 20 kW wood chip boiler

    🇩🇪GermanyPublished 6 Jul 2025· 1 years agoviaTED
    Awarded
    €416.2k
    Published 6 Jul 2025

    Decision brief

    4 fields
    • Contract value
      €416,242
      Euros
    • Closing date
      Rolling
      No closing date published
    • Sector
      Construction
      Browse related listings
    • Location
      🇩🇪Germany

    Suppliers

    1 supplier
    • SH
      SANIZENTRA HAUSTECHNIK GMBH
    Lead contractor

    Lifecycle

    Awarded

    Contract awarded. Originally published 1 years ago.

    6 July 2025
    Awarded — no open tender advertised

    Brief

    The City of Karlsruhe is seeking suppliers for the installation and modernization of a heating system at the Technical Center of the Carpentry Department. The project includes the following key components: - Installation of a heating system using a 100 kW pellet boiler and a 20 kW wood chip boiler. - Construction of a pellet storage room of approximately 12 m², including suction probes and sloped flooring. - Implementation of a buffer storage system with a capacity of about 4400 liters, connected to a pressure maintenance station. - Connection of four heating circuits, including underfloor heating, ventilation, fresh water stations, and their buffer storage, as well as a district heating network. - Integration of an electric heating boiler with the buffer storage to utilize excess photovoltaic (PV) energy. - Underfloor heating installation in the carpentry area covering approximately 346 m². - Construction of a piping network using stainless steel with insulation compliant with GEG requirements. - Installation of a separate stainless steel chimney for the heating system, which must be approved by building regulations. - The system will include building automation, which is not part of this description. This contract is valued at approximately €416,242.34 and is published on the TED platform. Suppliers interested in this opportunity can find more details at the provided link.

    Track record

    3 awards · 3 winners
    Open field

    No single supplier dominates the field.

    In construction, KARLSRUHE CITY OFFICE FOR BUILDING CONSTRUCTION AND PROPERTY MANAGEMENT has awarded 3 contracts to 3 suppliers.

    Who wins here
    1. Johann Joos Deep and Road Construction Company GmbH & Co. KG1× · 33%
    2. JOHANN JOOS TIEF UND STRAENBAUUNTERNEHMUNG GMBH CO KG1× · 33%
    3. SANIZENTRA HAUSTECHNIK GMBH1× · 33%

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

    More from KARLSRUHE CITY OFFICE FOR BUILDING CONSTRUCTION AND PROPERTY MANAGEMENT

    3 listingsView all →
    AwardedConstruction🇩🇪Germany

    Earthworks Contract for Modernization and Expansion

    The City of Karlsruhe is seeking suppliers for earthworks related to the modernization and expansion of the municipal construction office. The project includes various tasks such as cutting approximately 290 meters of asphalt surface, breaking up around 60 cubic meters of tar-containing pavement, re

    €525,384KARLSRUHE CITY OFFICE FOR BUILDING CONSTRUCTION AND PROPERTY MANAGEMENT
    Published 24 Jul 2025
    Construction🇩🇪Germany

    Painting and Coating Works for Walter Eucken School Modernization

    The City of Karlsruhe is seeking suppliers for painting and coating services as part of the modernization of Walter Eucken School. The project includes hydrophobic treatment of exposed concrete walls and columns, covering a total area of 3,870 square meters, as well as painting of internal and exter

    KARLSRUHE CITY OFFICE FOR BUILDING CONSTRUCTION AND PROPERTY MANAGEMENT
    Published 17 Jul 2025
    AwardedConstruction🇩🇪Germany

    Construction and Engineering Services for New Community Center in Karlsruhe

    The City of Karlsruhe is seeking architectural, structural, and engineering services for the construction of a new community center located on Stuttgarter Straße. This project involves a phased approach to the planning and design, covering all stages from initial concept to final construction oversi

    KARLSRUHE CITY OFFICE FOR BUILDING CONSTRUCTION AND PROPERTY MANAGEMENT
    Published 29 May 2025

    Open in Construction

    4 open listingsView all →
    Construction🇬🇧United Kingdom

    Cromer Road MOT Site Roof Replacement Project

    Roof replacement and renovation project at Cromer Road MOT site including coverings and roof lights for multiple buildings.

    est.£1,986,000Stoke on Trent City Council
    Published 19 Aug 2026
    Construction🇮🇪Ireland

    Public Lighting Upgrade Works at IDA Finnabair Business Park, Dundalk

    LED lighting and electrical infrastructure upgrade project at a major business and technology park in Dundalk, Ireland.

    est.€330,000IDA IRELAND
    Published 19 Aug 2026
    Construction🇮🇪Ireland

    Visitor Centre Extension - Site Preparation at Glenveagh National Park

    Glenveagh National Park seeks contractors to perform site preparation work for a planned visitor centre extension project.

    est.€400,000DEPARTMENT OF HOUSING LOCAL GOVERNMENT AND HERITAGE
    Published 19 Aug 2026
    Construction🇮🇪Ireland

    St Tiernan's Community School – Home Economics and Science Laboratory Refurbishment

    Refurbishment project for Home Economics and Science laboratory facilities at St Tiernan's Community School in Ireland.

    est.€500,000St. Tiernan's Community School
    Published 19 Aug 2026
    Take action
    View on sourceTED

    Award notice and full record 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
    440202-2025
    KC
    Buyer
    KARLSRUHE CITY OFFICE FOR BUILDING CONSTRUCTION AND PROPERTY MANAGEMENT
    Sector
    Construction