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Procurement of Tank Covers

SEVERN TRENT WATER LIMITED

This public procurement record has 4 releases in its history.

Tender

25 Jun 2026 at 08:00

UK4 - Tender Notice
PlanningUpdate

17 Apr 2026 at 14:49

UK2 - Preliminary Market Engagement Notice
PlanningUpdate

16 Feb 2026 at 18:09

UK2 - Preliminary Market Engagement Notice
Planning

16 Feb 2026 at 11:44

UK2 - Preliminary Market Engagement Notice
Summary of the contracting process

Severn Trent Water Limited is currently at the tender stage of a procurement process for the supply and installation of tank cover systems for wastewater and water treatment assets. This project is part of their AMP8 Net Zero Investment Programme, aimed at delivering "Cover and Treat" solutions, targeting emission reductions across approximately 23 sites in the United Kingdom. The tender, titled "Procurement of Tank Covers", falls under the industry category of water distribution and related services. Interested suppliers must submit their expressions of interest by 22 July 2026, with enquiries closing on 15 July 2026. The procurement method being used is a selective, competitive flexible procedure, and the contract is expected to commence on 15 January 2027 and could run until 2031 or even extend up to 2035.

This tender presents significant business growth opportunities for companies specialised in designing, manufacturing, and installing cover systems for treatment plants. Suppliers with expertise in roof works, purification plant equipment, and the production of tanks or related containers will find this contract particularly relevant. The procurement's framework agreement method, which allows for direct award or mini-competition, means that even larger firms capable of handling multiple projects simultaneously may be favoured. The emphasis on collaborative work and environmental management systems suggests suitability for forward-thinking companies prioritising sustainable and innovative solutions.

How relevant is this notice?

Notice Information

Notice Title

Procurement of Tank Covers

Notice Description

Overview The Contracting Authority requires the design, supply and installation of tank cover systems for wastewater and water treatment assets. As part of its AMP8 Net Zero Investment Programme, the Contracting Authority intends to deliver Cover and Treat solutions across approximately 23 sites (subject to change) to reduce process emissions by approximately 19,618 tCO2e. Hafren Dyfrdwy also has an AMP8 regulatory commitment to deliver a Cover and Treat solution at one site, contributing a further reduction of approximately 411 tCO2e. The scope includes Activated Sludge Plant (ASP) lanes and Liquor Treatment Plant (LTP) tanks associated with wastewater and sludge treatment processes. These assets operate continuously and contain biologically active, aerated liquors that generate off-gases during normal operation. Any proposed tank cover solution must be suitable for installation over live operational treatment assets and must not adversely affect process performance, operation, maintenance activities or access requirements. The final number, size and location of sites may be subject to change and will be defined within the procurement documents. Anticipated Scope of Contract The successful suppliers will be required to design, manufacture, supply, deliver, install, test and commission impermeable tank cover systems for Activated Sludge Plants (ASPs) and Liquor Treatment Plants (LTPs). The anticipated scope includes all activities necessary to provide a complete and operational tank cover solution, including design development, calculations, drawings, fabrication, quality assurance, delivery, installation, testing, commissioning, operation and maintenance documentation and warranties. The successful suppliers will be expected to assess the suitability of existing tank structures to support the proposed cover system, including consideration of structural condition, load paths, connection methodology and access requirements. Intrusive investigations and structural remediation works are not currently anticipated to form part of the scope unless specifically instructed. The successful suppliers will be required to work collaboratively with the Contracting Authority and its appointed designers to define interfaces between the tank cover system and any future extraction or treatment systems. The design and delivery of such extraction and treatment systems, including extraction fans, ductwork and treatment processes, is not expected to form part of this contract.

Lot Information

Lot 1

Renewal: The Contracting Authority intends to establish a Framework Agreement for an initial term of four (4) years, anticipated to commence in January 2027. The Framework Agreement may be extended by up to a further four (4) years at the Authority's discretion, in increments to be determined by the Authority, for example 1+1+1+1 years, giving a maximum framework term of eight (8) years.

Planning Information

STW are investigating the procurement for the supply and delivery of covers of our ASP tanks (Activated Sludge Plant). We are keen to engage with interested suppliers to help us inform our sourcing strategy and procurement process. Any future Tender Notice will be published and response to this pre market engagement is optional and does not contribute to any procurement process. All information gathered as part of this market engagement process will be used to inform our understanding of the market and support us in refining our requirements. We will publish an initial questionnaire (please see link below) inviting interested suppliers to provide information on their products and services. Following review of the responses to this questionnaire we reserve the right to contact suppliers individually to discuss their responses further and explore any additional areas that may arise during the market engagement period, including testing of potential tender documentation such as specification. https://forms.office.com/Pages/ResponsePage.aspx?id=mR5c4eN7XEmXjuynuOqfMYDU6ocOxeJDlDF1UpKb1EdUMzY1TzFIRTdDNVZQN1ZQWTdXMzhZNFo2NS4u Whilst the initial market engagement period is until 31 March 2026 , we would like to hear from suppliers as soon as possible through the completion of the questionnaire (link above). Any questions re access or completion of the questionnaire please email: AdvancedProcurement@severntrent.co.uk This period has now been extended to 30th April to enable further market engagement activities. If you are interesting in learning more about this opportunity please email the above mailbox.

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-0654b0
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/059640-2026
Current Stage
Tender
All Stages
Planning, 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
Not specified
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

65 - Public utilities

CPV Codes

44112400 - Roof

44112410 - Roof frames

44112420 - Roof supports

44112500 - Roofing materials

44400000 - Miscellaneous fabricated products and related items

44600000 - Tanks, reservoirs and containers; central-heating radiators and boilers

45252200 - Purification plant equipment

45260000 - Roof works and other special trade construction works

65100000 - Water distribution and related services

Notice Value(s)

Tender Value
£37,400,000 £10M-£100M
Lots Value
£37,400,000 £10M-£100M
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
25 Jun 20262 months ago
Submission Deadline
15 Jul 2026Expired
Future Notice Date
31 Mar 2026Expired
Award Date
Not specified
Contract Period
15 Jan 2027 - 14 Jan 2031 4-5 years
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
SEVERN TRENT WATER 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
COVENTRY
Postcode
CV1 2LZ
Postcode Area
Coventry
Country
England
Major Region (ITL 1)
TLG West Midlands (England)
Basic Region (ITL 2)
TLG3 West Midlands
Small Region (ITL 3)
TLG33 Coventry
Delivery Location
TLC North East (England), TLD North West (England), TLE Yorkshire and The Humber, TLF East Midlands (England), TLG West Midlands (England), TLH East (England), TLI London, TLJ South East (England), TLK South West (England), TLL Wales
Local Authority
Coventry
Electoral Ward
St Michael's
Westminster Constituency
Coventry South

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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