This public procurement record has 2 releases in its history.

TenderUpdate

10 Dec 2025 at 10:28

Tender

17 Nov 2025 at 16:01

Summary of the contracting process

Thames Water Utilities Limited has initiated a procurement process for the supply and commissioning of sludge holding tanks and roofs at various wastewater treatment sites. The tender, titled "Sludge Holding Tanks & Roofs", falls under the industry category of sewage and industrial waste treatment facilities and services. The process is currently in the tender update stage, with key deadlines including the enquiry period ending on 30th December 2025, and the deadline for expression of interest now extended to 9th January 2026. The project's delivery is across regions UKI and UKJ in the United Kingdom. The procurement follows a Competitive Flexible Procedure under the Procurement Act 2023, which includes multiple stages like a Pre-Specific Questionnaire (PSQ) and subsequent negotiations and evaluations.

This procurement presents significant opportunities for businesses specialising in sewage infrastructure and environmental compliance solutions. Companies that can offer efficient supply and installation capabilities, along with innovative solutions that align with regulatory standards, are well-suited to compete. SMEs with expertise in producing sludge-storage tanks, water tanks, and associated structures would benefit from engaging with this opportunity, particularly as the procurement favours those who can maximise commercial efficiencies and future-proof program capacities. Prospective suppliers should be prepared to participate in mini-competitions as part of a framework agreement, allowing for ongoing opportunities once the initial requirements are defined.

How relevant is this notice?

Notice Title

Sludge Holding Tanks & Roofs

Notice Description

This procurement is for the supply and commissioning of sludge tanks, digesters, other associated tanks, roofs, and related items at various wastewater treatment sites. Target Sites The procurement will cover purchase, installation and commissioning of new sludge tanks, digesters, and other associated tanks and roofs and associated items. Objectives * Compliance: Ensure compliance with legislation, improve the environmental impact of the STW and provide infrastructure which is fit for purpose. * Commercial Value: Optimise the material and delivery solution to maximise commercial efficiencies for Thames Water * Futureproofing: Implement a framework which enables Thames Water to be able toe secure the capacity it requires for future programmes of works Procurement Approach: A competitive tender process will be undertaken to appoint a supplier(s) capable of delivering the required scope. The strategy favours a supplier who can streamline delivery, ensure consistency, and maximise commercial and operational benefits. Procurement Timeline Considerations: The procurement timeline is currently under review due to strategic and regulatory reassessments at certain sites. Specifically: * A study evaluating the requirements to meet the Environment Agency IED requirements is ongoing, with outcomes expected later in the year. These findings will inform final scope and procurement readiness Expected Outcomes * Improved asset reliability and operational performance * Enhanced alignment with environmental and regulatory objectives * Commercial efficiencies through strategic sourcing and standardisation Please note that that deadline for asking for access to the PSQ & submitting of the PSQ is 22 December 2025, 10 am.

Lot Information

Sludge Holding Tanks (including Digesters and other associated Tanks) (Supply and Installation)

This procurement relates to the supply and commissioning support of Sludge tanks, Digesters and Roofs and associated items across potential multiple wastewater treatment sites.

Sludge Holding Tanks (including Digesters and other associated Tanks) (CDM Responsibilities)

This procurement relates to the supply and commissioning support of Sludge tanks, Digesters and Roofs and associated items across potential multiple wastewater treatment sites. Whilst acting as the responsible CDM representative at the location.

Sludge Holding Tank Roofs (including Digesters)

This procurement relates to the supply and commissioning support of roofs for the fitting to Sludge tanks, Digesters and associated items across potential multiple wastewater treatment sites

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-05e2b6
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/081350-2025
Current Stage
Tender
All Stages
Tender

Procurement Classification

Notice Type
UK4 - Tender Notice
Procurement Type
Framework
Procurement Category
Goods
Procurement Method
Selective
Procurement Method Details
Competitive flexible procedure
Tender Suitability
SME
Awardee Scale
Not specified

Common Procurement Vocabulary (CPV)

CPV Divisions

44 - Construction structures and materials; auxiliary products to construction (except electric apparatus)

45 - Construction work

90 - Sewage, refuse, cleaning and environmental services


CPV Codes

44611420 - Sludge-storage tanks

44611500 - Water tanks

45232421 - Sewage treatment works

45232422 - Sludge-treatment works

45252000 - Construction works for sewage treatment plants, purification plants and refuse incineration plants

90420000 - Sewage treatment services

Notice Value(s)

Tender Value
Not specified
Lots Value
Not specified
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
10 Dec 20258 months ago
Submission Deadline
30 Dec 2025Expired
Future Notice Date
Not specified
Award Date
Not specified
Contract Period
1 Jun 2026 - 31 May 2034 Over 5 years
Recurrence
Not specified

Notice Status

Tender Status
Active
Lots Status
Active
Awards Status
Not Specified
Contracts Status
Not Specified

Contracting Authority (Buyer)

Main Buyer
THAMES WATER UTILITIES LIMITED
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
READING
Postcode
RG1 8DB
Postcode Area
Reading
Country
England

Major Region (ITL 1)
TLJ South East (England)
Basic Region (ITL 2)
TLJ1 Berkshire, Buckinghamshire and Oxfordshire
Small Region (ITL 3)
TLJ16 Berkshire West
Delivery Location
TLI London, TLJ South East (England)

Local Authority
Reading
Electoral Ward
Thames
Westminster Constituency
Reading Central

Further Information

Notice Documents

Open Contracting Data Standard (OCDS)

View full OCDS Record for this contracting process

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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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