Yorkshire Water has gone out to tender with an AMP8 contract to inform the development of a procurement strategy for specialist ozone maintenance and minor capital works across its ozone process-plant estate with a total estimated value of c £216.37 million.

Current estimated start and end contract dates are 1 April 2027 to 31 March 2030, with a further possible extension to 31 March 2032. Estimated contract award decision date is 14 January 2027.

The proposed framework will support end-to-end planned and reactive maintenance, technical support, emergency response and minor capital works associated with ozone-generation systems and related assets, including:

• asset inspections
• condition and performance assessments
• fault diagnosis
• breakdown repair
• critical-spares management
• obsolescence management
• equipment replacement
• refurbishment
• upgrades and remediation.

Scope may also include mechanical, electrical, instrumentation, control and automation works, testing, commissioning, performance validation, warranty support and the provision of maintenance documentation, asset data and operating guidance.

Major design-and-build capital schemes are excluded from the framework and will be delivered through Yorkshire Water's Tier 1 suppliers.

Yorkshire Water is now inviting suppliers with relevant experience and capability to express interest and participate.

The framework will operate on a single-supplier basis, with Yorkshire Water awarding call-off contracts or work orders for planned and reactive maintenance, technical support, emergency response and minor capital works in accordance with the procedures set out in the Framework Agreement.

Prices for call-offs will be determined using pricing schedules established at tender, with the ability to confirm or adjust pricing where permitted by the call-off process and the terms of the Framework Agreement.

Yorkshire Water will allocate work to the appointed supplier in accordance with the agreed framework procedures, requirements and priorities. The framework will provide flexibility to respond to planned maintenance programmes, reactive incidents, emergency requirements and minor capital works across Yorkshire Water's ozone estate.

Deadline for submission of enquiries about the tender is 5:00pm on 27 October 2026 and deadline for requests to participate is 5:00pm on 3 November 2026.

Tender documents, submission address and any special instructions are available at SAP Ariba, Yorkshire Water's e-procurement portal and all tenders must be submitted electronically via SAP Ariba.

Suppliers will not be able to view or access the tender in SAP Ariba unless they have been invited by Yorkshire Water through the portal.

Suppliers who would like to participate but are not yet registered as a Yorkshire Water supplier, are asked to email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it and include the full legal company name, and the email address they wish to register.

They will then be issued with a registration request and an invitation to the tender via SAP Ariba.

Organisations already registered as a Yorkshire Water supplier who have not received an invitation, are asked to email This e-mail address is being protected from spambots. You need JavaScript enabled to view it and include their ANID number, full company name, and registered Ariba email address, so that an invitation to the tender can be issued.

Yorkshire Water will run a multi-stage procurement as follows:

Stage 1 - Conditions of Participation (CoP):

Interested suppliers submit a COP Questionnaire. Responses are assessed against defined pass/fail Selection Criteria to determine whether suppliers meet Yorkshire Water's minimum requirements. Yorkshire Water may conduct one or more rounds of Selection and reserves the right to shortlist suppliers progressing to subsequent stages.

Stage 2 - Contractual Compliance:

Shortlisted suppliers will be invited to review and, where permitted, comment on the Proposed Contract. Yorkshire Water will refine and finalise the contract terms during this stage. Only suppliers who accept the final contract terms will progress to the ITT stage.

Stage 3 - Invitation to Tender (Quality & Commercial):

Suppliers will submit detailed quality and commercial tenders, which will be evaluated in accordance with the award criteria set out in the ITT documentation.

Following evaluation, Yorkshire Water will identify the most economically advantageous tenders and award places on the Technical Services and Assurance Framework.

The procedure structure and indicative timelines are set out in the procurement documents.