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Cold Water Services - Tank Refurbishment Principal Contractor

Natural History Museum

This public procurement record has 3 releases in its history.

TenderCancellation

10 Sep 2026 at 16:41

UK12 - Procurement Termination Notice
Tender

27 Jul 2026 at 15:59

UK4 - Tender Notice
Planning

30 Jun 2026 at 11:50

UK2 - Preliminary Market Engagement Notice
Summary of the contracting process

The Natural History Museum sought a specialist principal contractor for cold-water tank refurbishment works at its museum in London. The requirement covered cleaning and relining water tanks to remove debris, rust and scale, reduce legionella risk and limit leaks affecting museum operations. The contractor was also to replace aged pipework with new mild steel pipework designed to reduce scale build-up, improve flow and efficiency across the cold-water distribution system, and provide more robust protection against leaks. The procurement was for works involving tank refurbishment, tank cleaning and pipe-system installation. Delivery was at the museum’s London site, where the tanks’ location and condition made direct inspection essential before bidding.

The process reached tender: the Museum invited offers through a below-threshold open competition, with electronic submission allowed through the Delta eSourcing portal. The enquiry deadline was 7 August 2026 at 17:00 and the tender submission deadline was 31 August 2026 at 12:00. The planned contract period was 13 September 2026 to 31 March 2027. The estimated value was £150,000 excluding VAT, or £180,000 including VAT. There was one lot, marked suitable for small and medium-sized enterprises. Evaluation allocated 60% to tendered price and 40% to quality, covering the scope of works, logistics and management, project completion, staffing and sustainability. The procurement was cancelled, with the cancellation recorded on 4 September 2026.

This opportunity suited specialist water-services, tank-refurbishment and mechanical pipework contractors able to clean and reline water tanks and install replacement mild steel pipework. Relevant capability included managing legionella risk, controlling scale and corrosion, improving cold-water distribution performance, and delivering leak-resistant systems in an operational museum environment. Contractors needed suitable project management, logistics and completion arrangements, qualified staff, and the ability to address sustainability requirements, reflecting the quality evaluation areas. A site visit was mandatory, and bidders who did not attend would be excluded; visits were arranged with the Museum and limited to two people for health and safety reasons. An NDA had to be completed before access to tender documents was granted. The requirement was identified as suitable for SMEs.

How relevant is this notice?

Notice Information

Notice Title

Cold Water Services - Tank Refurbishment Principal Contractor

Notice Description

The Museum requires a specialist contractor to clean and reline the water tanks to mitigate against debris/ rust/ scale build up in the tanks, reduce legionella risk and reduce risk of leaks and impact on Museum operations. The specialist contractor is also required to replace the existing aged pipework with new mild steel pipework that mitigates against scale build up in pipework. These works should also improve flow/efficiency of the cold water services distribution system and avoid water leaks via increased robustness of pipework materials and fittings. Due to the nature and location of the tanks, site visits are mandatory - bidders will be excluded from the tender if they do not visit site. Site Visits can be made by prior arrangement with NHM. Tenderers should contact the NHM via Message Centre function on the Portal to arrange a site visit. Tenderers will be limited to a maximum of 2 [two] individuals for the site visit for Health and Safety reasons. An NDA will also be required to be completed before access to the tender documents can be granted. This can be downloaded and completed here: https://www.delta-esourcing.com/respond/739784A6W4

Planning Information

In the week commencing 16 June, 10 companies were approached to express their interest in the project by completing the following questionnaire: https://forms.cloud.microsoft/e/gysAJXXYiE The below companies were approached: 1)Echo square 2)Covac 3)Tank Reline 4)CBRE 5)SMS Environmental 6)H2O comply 7)Waterhygiene.expert 8)Express water tanks 9)Titan Water 10)Nationwide water solution ltd A lower than expected response was received, leading to the decision to open this tender up to the open market. To express your interest in this tender, please complete the online questionnaire: https://forms.cloud.microsoft/e/gysAJXXYiE

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-06bff3
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/086112-2026
Current Stage
Tender
All Stages
Planning, Tender

Procurement Classification

Notice Type
UK12 - Procurement Termination Notice
Procurement Type
Standard
Procurement Category
Works
Procurement Method
Open
Procurement Method Details
Below threshold - open competition
Tender Suitability
SME
Awardee Scale
Not specified

Common Procurement Vocabulary (CPV)

CPV Divisions

45 - Construction work

90 - Sewage, refuse, cleaning and environmental services

CPV Codes

45212313 - Museum construction work

45231112 - Installation of pipe system

90913000 - Tank and reservoir cleaning services

90913100 - Tank-cleaning services

Notice Value(s)

Tender Value
£150,000 £100K-£500K
Lots Value
£150,000 £100K-£500K
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
10 Sep 20261 months ago
Submission Deadline
31 Aug 2026Expired
Future Notice Date
Not specified
Award Date
Not specified
Contract Period
13 Sep 2026 - 31 Mar 2027 6-12 months
Recurrence
Not specified

Notice Status

Tender Status
Complete
Lots Status
Complete
Awards Status
Cancelled
Contracts Status
Not Specified

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
Natural History Museum
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
LONDON
Postcode
SW7 5BD
Postcode Area
South West London
Country
England
Major Region (ITL 1)
TLI London
Basic Region (ITL 2)
TLI3 Inner London - West
Small Region (ITL 3)
TLI33 Kensington & Chelsea and Hammersmith & Fulham
Delivery Location
TLI London
Local Authority
Kensington and Chelsea
Electoral Ward
Brompton & Hans Town
Westminster Constituency
Kensington and Bayswater

Further Information

Notice Documents

Open Contracting Data Standard (OCDS)

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The Open Contracting Data Standard (OCDS) is a framework designed to increase transparency and access to public procurement data in the public sector. It is widely used by governments and organisations worldwide to report on procurement processes and contracts.

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