Scope
Reference
FM3462
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.
For more information about this opportunity, please visit the Delta eSourcing portal at:
https://www.delta-esourcing.com/tenders/UK-UK-London:-Heat-pumps./4E67D4UP37
To respond to this opportunity, please click here:
Total value (estimated)
- £150,884 excluding VAT
- £181,061 including VAT
Below the relevant threshold
Contract dates (estimated)
- 10 October 2025 to 6 February 2026
- 3 months, 28 days
Main procurement category
Works
CPV classifications
- 42511110 - Heat pumps
- 45251141 - Geothermal power station construction work
- 45331000 - Heating, ventilation and air-conditioning installation work
- 71320000 - Engineering design services
Participation
Particular suitability
Small and medium-sized enterprises (SME)
Submission
Enquiry deadline
12 September 2025, 12:00pm
Tender submission deadline
19 September 2025, 12:00pm
Submission address and any special instructions
Tenders may be submitted electronically
Yes
Award criteria
| Name | Type | Weighting |
|---|---|---|
| Cost | Cost | 40% |
| Programme | Quality | 15% |
| Management of Technical Installation | Quality | 15% |
| Management / Organisation | Quality | 15% |
| Team | Quality | 10% |
| Sustainability | Quality | 5% |
Procedure
Procedure type
Below threshold - open competition
Contracting authority
Imperial War Museums
- Public Procurement Organisation Number: PHRL-5691-LLXM
IWM London, Lambeth Road
London
SE1 6HZ
United Kingdom
Telephone: 0207 416 5000
Email: erowberry@iwm.org.uk
Region: UKI44 - Lewisham and Southwark
Organisation type: Public authority - central government