AwardedAwarded 29 October 2025

IWM/2526/FM/3462: Ground Source Heat Pump in Hangar 4 at IWM Duxford

Imperial War Museums · Central government

In brief

Imperial War Museums awarded construction and heating and plumbing work to Finn Geotherm UK Ltd on 29 October 2025.

Built from the notice's own fields. Always check the official notice before you bid.

What the notice says

Imperial War Museums (IWM) is seeking a qualified contractor to deliver the next phase of its low-carbon heating strategy at IWM Duxford. This project involves the installation of a ground source heat pump (GSHP) system in Hangar 4, replacing the existing oil-fired boiler serving office areas on both the north and south sides of the hangar. Phases 1 and 2 of IWM’s GSHP implementation have successfully covered Hangars 2, 3, 5, and Buildings 200 and 74. Heat energy is sourced from underground water via bored holes on-site, transferred through plate heat exchangers in Building 68, and distributed via an ambient loop. Phase 3 (the current tender) will connect to the existing ambient loop…Read the full description
Imperial War Museums (IWM) is seeking a qualified contractor to deliver the next phase of its low-carbon heating strategy at IWM Duxford. This project involves the installation of a ground source heat pump (GSHP) system in Hangar 4, replacing the existing oil-fired boiler serving office areas on both the north and south sides of the hangar. Phases 1 and 2 of IWM’s GSHP implementation have successfully covered Hangars 2, 3, 5, and Buildings 200 and 74. Heat energy is sourced from underground water via bored holes on-site, transferred through plate heat exchangers in Building 68, and distributed via an ambient loop. Phase 3 (the current tender) will connect to the existing ambient loop infrastructure already in place from previous phases. The scope includes detailed design development (based on a novated preliminary design), procurement, installation, and commissioning of all associated plant and equipment. A back-up electric boiler capable of meeting 100% of the heat load will also be integrated. All equipment will be housed within the designated plantroom. Access Code : 4E67D4UP37 This initiative supports IWM’s broader commitment to sustainability, energy efficiency, and climate action, aiming to reduce operational costs and set a benchmark for environmentally responsible practices in heritage and public sector buildings. To view this notice, please click here: https://www.delta-esourcing.com/delta/viewNotice.html?noticeId=994814099

Who won

WinnerValueDates
Finn Geotherm UK Ltd
3 bids received
£258,235
Awarded 29 October 2025

Values as the award notice gives them, excluding VAT where stated.

Timeline

  1. Contract award notice · UK6, notice 074347-2025

Last time this was bought

IWM/2526/FM/3479: Design and Construction of New Fire Engine Shed at IWM Duxford

Awarded
5 January 2026
Value
£698,635
Bids
14

Matched on Imperial War Museums, the type of work and the title; it may be a related contract rather than the same one. Check the notice to be sure.

About the buyer

Imperial War MuseumsLast 12 months

Procurements

49

Awards

31

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From notice 074347-2025 on Find a Tender, first published 17 November 2025. We last checked for changes on 28 September 2026.