--- title: "CM3543 ASP Diffuser Asset Replacement" ocid: "ocds-h6vhtk-06b2d2" canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-06b2d2" markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-06b2d2.md" json_url: "https://d3tenders.com/contract/ocds-h6vhtk-06b2d2.json" source: "Find A Tender Service" current_stage: "Tender" buyer: "YORKSHIRE WATER SERVICES LIMITED" published: "2026-07-21" --- # CM3543 ASP Diffuser Asset Replacement Buyer: YORKSHIRE WATER SERVICES LIMITED Current stage: Tender OCID: ocds-h6vhtk-06b2d2 [View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-h6vhtk-06b2d2) [Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-06b2d2.json) ## Summary Yorkshire Water Services Limited is actively seeking suppliers for the provision of diffuser system services as part of the "CM3543 ASP Diffuser Asset Replacement" project. This procurement falls under the machinery and sewage treatment works industry category, aimed at updating their wastewater treatment asset portfolio across the UK. The process is currently at the tender update stage, with an expression of interest deadline set for 12th August 2026. Yorkshire Water, based in Bradford, United Kingdom, employs a competitive flexible procedure where interested suppliers must electronically submit tenders through SAP Ariba. The contract, valued at approximately £9,273,550, will run from 1st January 2027 to 31st December 2030, with potential extensions based on performance and regulatory requirements. This tender offers robust business growth opportunities for companies with expertise in sewage treatment and mechanical equipment installation services, particularly those able to offer comprehensive solutions including design, supply, installation, and commissioning. Firms experienced in end-to-end scheme delivery within Activated Sludge Plants and with capabilities for innovative diffuser system solutions are particularly well-placed to compete. Yorkshire Water's multi-supplier framework allows for flexible contracts and provides a platform for companies to participate in further competitions, enhancing visibility and fostering long-term partnerships with one of the UK's vital utility providers. ## Notice Yorkshire Water is launching a tender notice of a procurement process for the provision of diffuser system services across its wastewater treatment asset portfolio. The proposed framework will support the assessment, design, supply, installation, commissioning and replacement of diffuser systems within Activated Sludge Plants (ASPs) and associated wastewater treatment processes. The framework is intended to provide end-to-end scheme delivery, including condition assessment of existing assets, design of replacement or new diffuser systems, supply of diffusers and associated mechanical components, installation works, commissioning, performance validation and phased handover to maintain operational continuity. 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. ### Planning Information Suppliers are invited to express interest via email to Luis.Barreiros@Yorkshirewater.co.uk with brief details of their service offering. If you wish to express interest but are not yet registered as a Yorkshire Water supplier, please email: Luis.Barreiros@Yorkshirewater.co.uk and include the full legal company name, and the email address you wish to register. If you are already registered as a Yorkshire Water supplier, please email Luis.Barreiros@Yorkshirewater.co.uk and include your ANID number, your full company name, and your registered Ariba email address. There are no specific conditions for participation in this market engagement. Participation is voluntary and non-binding. ## Key Details | Field | Value | | --- | --- | | Publication source | Find A Tender Service | | Latest notice | https://www.find-tender.service.gov.uk/Notice/068534-2026 | | 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 | | All stages | Planning, Tender | ## Dates | Field | Value | | --- | --- | | Publication date | 21 Jul 2026 | | Submission deadline | Not specified | | Future notice date | 15 Jul 2026 | | Award date | Not specified | | Contract period | 1 Jan 2027 - 31 Dec 2030 | | Recurrence | Not specified | ## Values | Field | Value | | --- | --- | | Tender value | £9,273,550 | | Lots value | £9,273,550 | | Awards value | Not specified | | Contracts value | Not specified | ## Status | Field | Value | | --- | --- | | Tender status | Active | | Lots status | Active | | Awards status | Not specified | | Contracts status | Not specified | ## Buyer | Field | Value | | --- | --- | | Main buyer | YORKSHIRE WATER SERVICES LIMITED | | Locality | BRADFORD | | Post town | Bradford | | Postcode | BD6 2SZ | | Country | England | | ITL 1 | TLE Yorkshire and The Humber | | ITL 2 | TLE4 West Yorkshire | | ITL 3 | TLE41 Bradford | | Local authority | Bradford | | Electoral ward | Royds | | Westminster constituency | Bradford South | | Delivery location | Not specified | ## CPV Codes ### Divisions - 42 - Industrial machinery - 45 - Construction work - 51 - Installation services (except software) - 71 - Architectural, construction, engineering and inspection services - 90 - Sewage, refuse, cleaning and environmental services ### Codes - 42996000 - Machinery for the treatment of sewage - 45232421 - Sewage treatment works - 45232422 - Sludge-treatment works - 45252130 - Sewage plant equipment - 51100000 - Installation services of electrical and mechanical equipment - 71320000 - Engineering design services - 90420000 - Sewage treatment services ## Release History - 21 Jul 2026 at 08:47 - TenderUpdate - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/068534-2026 - 17 Jul 2026 at 10:04 - Tender - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/067620-2026 - 11 Jun 2026 at 11:32 - Planning - UK2 - Preliminary Market Engagement Notice - https://www.find-tender.service.gov.uk/Notice/055163-2026 ## Documents - https://www.find-tender.service.gov.uk/Notice/068534-2026 21st July 2026 - Tender notice on Find a Tender - https://www.find-tender.service.gov.uk/Notice/067620-2026 17th July 2026 - Tender notice on Find a Tender - https://www.find-tender.service.gov.uk/Notice/055163-2026 11th June 2026 - Preliminary market engagement notice on Find a Tender ## Notice URLs - https://s1-eu.ariba.com/Sourcing/Main/aw?awh=r&awssk=fy5dbBftDhoBNSzh&realm=YorkshireWater& - https://www.legislation.gov.uk/ukpga/2023/54/contents ## Provenance This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-06b2d2. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-06b2d2.json.