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CM3540 Ozone Maintenance & Minor Capital Works

YORKSHIRE WATER SERVICES LIMITED

This public procurement record has 1 release in its history.

Tender

09 Oct 2026 at 15:18

UK4 - Tender Notice
Summary of the contracting process

Yorkshire Water Services Limited is seeking specialist maintenance and minor capital works for its ozone-generation systems and related assets. The work covers planned and reactive maintenance, technical support and emergency response, including inspections, condition and performance assessments, fault diagnosis, breakdown repairs, critical-spares and obsolescence management, equipment replacement, refurbishment, upgrades and remediation. Mechanical, electrical, instrumentation, control and automation work may also be required, together with testing, commissioning, performance validation, warranty support and maintenance records and operating guidance. Major design-and-build capital schemes are excluded. Work is across Yorkshire Water’s ozone plant estate, with delivery locations spanning England, including the North East, North West, Yorkshire and the Humber, Midlands, East and South East, London and South West.

The buyer invited suppliers to take part in a multi-stage competitive flexible tender under the Procurement Act 2023. Suppliers first submit a Conditions of Participation questionnaire; those meeting pass/fail selection criteria may be shortlisted, then review proposed contract terms before qualifying for the quality and commercial tender stage. The enquiry deadline was 27 October 2026 at 17:00 UTC, and the expression-of-interest deadline was 3 November 2026 at 17:00 UTC. The buyer planned to conclude evaluation by 14 January 2027. The single-supplier framework is scheduled to run from 1 April 2027 to 31 March 2030, with an extension possible up to 31 March 2032. Its stated value is £216,378,718 including VAT. There is one lot; quality and commercial criteria each carry 50% of the score.

This opportunity suits specialist water-treatment plant maintenance and engineering businesses able to support ozone-generation equipment across a geographically broad estate. Suppliers need the technical range to inspect and assess assets, diagnose faults, repair breakdowns, manage critical spares and obsolescence, replace or refurbish equipment, and undertake upgrades and remediation. The scope may also suit firms with mechanical, electrical, instrumentation, control and automation expertise, including the ability to test, commission and validate performance. The framework calls for both planned work and responsive technical support, including emergency response, so bidders should be equipped to address urgent incidents as well as routine maintenance and minor capital work. Relevant experience and capability are expressly sought. Major design-and-build schemes fall outside this requirement; those are handled by Yorkshire Water’s Tier 1 suppliers. No specific accreditation or certification requirement is stated.

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Notice Information

Notice Title

CM3540 Ozone Maintenance & Minor Capital Works

Notice Description

Yorkshire Water is conducting a Tender Notice to inform the development of a procurement strategy for specialist ozone maintenance and minor capital works across its ozone process-plant estate. 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. This will include asset inspections, condition and performance assessments, fault diagnosis, breakdown repair, critical-spares management, obsolescence management, equipment replacement, refurbishment, upgrades and remediation. The 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. Suppliers with relevant experience and capability are invited to express interest and participate in the CoP.

Lot Information

Lot 1

Renewal: The contract may be extended subject to performance, regulatory requirements, and business need.

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-0784f5
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/095760-2026
Current Stage
Tender
All Stages
Tender

Procurement Classification

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

Common Procurement Vocabulary (CPV)

CPV Divisions

45 - Construction work

50 - Repair and maintenance services

51 - Installation services (except software)

71 - Architectural, construction, engineering and inspection services

CPV Codes

45232430 - Water-treatment work

45252120 - Water-treatment plant construction work

45252126 - Drinking-water treatment plant construction work

50530000 - Repair and maintenance services of machinery

51100000 - Installation services of electrical and mechanical equipment

71334000 - Mechanical and electrical engineering services

71630000 - Technical inspection and testing services

Notice Value(s)

Tender Value
£216,378,718 £100M-£1B
Lots Value
£216,378,718 £100M-£1B
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
9 Oct 20263 days ago
Submission Deadline
Not specified
Future Notice Date
Not specified
Award Date
Not specified
Contract Period
1 Apr 2027 - 31 Mar 2030 3-4 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
YORKSHIRE WATER SERVICES 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
LEEDS
Postcode
LS10 1AB
Postcode Area
Leeds
Country
England
Major Region (ITL 1)
TLE Yorkshire and The Humber
Basic Region (ITL 2)
TLE4 West Yorkshire
Small Region (ITL 3)
TLE42 Leeds
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)
Local Authority
Leeds
Electoral Ward
Hunslet & Riverside
Westminster Constituency
Leeds South

Further Information

Notice Documents

Open Contracting Data Standard (OCDS)

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