Tender

Ask AI about this notice

Summarise, research or assess it with AI

View Markdown

Share this notice

Send this contract to a colleague

Cold Water Services - Tank Refurbishment Principal Contractor

Natural History Museum

This public procurement record has 2 releases in its history.

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 is procuring works to refurbish its cold-water services at its museum site in London. The principal contractor will clean and reline existing water tanks to remove debris, rust and scale, helping to reduce legionella risk, leaks and disruption to museum operations. The works also include replacing aged pipework with new mild-steel pipework designed to limit scale build-up, improve water flow and distribution efficiency, and provide more robust protection against leaks. This is a specialist tank-cleaning, tank-refurbishment and pipework installation requirement, combining construction and maintenance work in a live museum environment. The opportunity is suited to contractors able to manage integrated tank and cold-water services works rather than suppliers offering cleaning alone.

The process has reached tender: the Natural History Museum invited offers through a below-threshold open competition. Bids must be submitted electronically through the Delta eSourcing portal by 12:00 on 31 August 2026. Enquiries close at 17:00 on 7 August 2026. The contract is planned to run from 13 September 2026 to 31 March 2027. Its estimated value is £150,000 excluding VAT, or £180,000 including VAT. There is one lot. Evaluation is based 60% on tendered price and 40% on quality, covering the scope of works, logistics and management, project completion, staff and sustainability. A site visit is mandatory, and bidders must complete an NDA before accessing the tender documents.

This opportunity suits specialist water-services, tank-refurbishment and mechanical pipework contractors with experience cleaning and relining water tanks, replacing aged mild-steel pipework and improving cold-water distribution systems. Suppliers should be capable of controlling debris, rust and scale, reducing legionella and leak risks, and delivering robust installations with minimal impact on museum operations. The requirement calls for practical project management covering logistics, staff deployment and completion, alongside sustainability considerations. Contractors must be able to attend a mandatory site visit, with no more than two representatives permitted for health and safety reasons, and accept the confidentiality requirements imposed through the NDA. Small and medium-sized enterprises are identified as suitable participants.

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/070891-2026
Current Stage
Tender
All Stages
Planning, Tender

Procurement Classification

Notice Type
UK4 - Tender 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
27 Jul 20261 months ago
Submission Deadline
31 Aug 20264 days to go
Future Notice Date
6 Jul 2026Expired
Award Date
Not specified
Contract Period
13 Sep 2026 - 31 Mar 2027 6-12 months
Recurrence
Not specified

Notice Status

Tender Status
Active
Lots Status
Active
Awards Status
Not Specified
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)

View full OCDS Record for this contracting process

JSON Markdown

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.

Loading OCDS record...