--- title: "Trunk Mains AMP8 Roll Out: Distributed Acoustic Sensing (DAS) Fibre Sensing Solution" ocid: "ocds-h6vhtk-064baa" canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-064baa" markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-064baa.md" json_url: "https://d3tenders.com/contract/ocds-h6vhtk-064baa.json" source: "Find A Tender Service" current_stage: "Tender" buyer: "THAMES WATER UTILITIES LIMITED" published: "2026-03-12" --- # Trunk Mains AMP8 Roll Out: Distributed Acoustic Sensing (DAS) Fibre Sensing Solution Buyer: THAMES WATER UTILITIES LIMITED Current stage: Tender OCID: ocds-h6vhtk-064baa [View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-h6vhtk-064baa) [Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-064baa.json) ## Summary Thames Water Utilities Limited invites potential service providers to partake in a procurement process for the "Trunk Mains AMP8 Roll Out: Distributed Acoustic Sensing (DAS) Fibre Sensing Solution." The procurement aims to enhance detection of leaks and bursts across Thames Water's extensive trunk mains network. This initiative leverages DAS technology to provide near-total coverage, converting fibre optic cables into acoustic sensors for real-time monitoring. The project addresses the industry's growing need for robust monitoring solutions to mitigate water loss and infrastructure failure. With a gross value of £8,400,000, the procurement is categorised under the 'services' sector, with primary classifications in 'Sensors' and 'Telephone network maintenance services.' The procurement follows a 'Competitive Flexible Procedure' under the 'Utilities Contracts Regulations,' emphasising supplier selection through a Pre Selection Questionnaire (PSQ). The deadline for PSQ submissions is set for 19 March 2026, at 10 am, while the contract is expected to be awarded by June 2026. The project will cover regions within the United Kingdom, specifically UKI and UKJ. This tender presents significant opportunities for businesses specialising in sensor technology, telecommunications, and infrastructure solutions. By addressing the critical needs of Thames Water's network, qualifying companies can gain a foothold in the utilities sector and expand their reach in public infrastructure contracts. Ideal candidates are those who can offer scalable, cost-effective solutions with a strong focus on integration with existing systems and future-proof capabilities in predictive maintenance and leakage reduction. Additionally, the opportunity supports long-term relationships, as the initial contract term spans three years, with extensions possible up to 2034. Businesses with expertise in system integration, data management, and forward-looking maintenance practices are particularly well-positioned to benefit from this partnership, offering them a platform for growth and innovation within a major utility framework. ## Notice Thames Water is seeking to significantly improve its ability to detect leakage and bursts across its trunk mains network, where current monitoring coverage remains limited. This lack of visibility restricts early detection and response, increasing the risk of water loss, asset failure, and service disruption. To address this, Thames Water intends to roll out a Distributed Acoustic Sensing (DAS) fibre sensing solution, with the ambition of achieving near-100% coverage across its trunk mains estate. DAS technology offers the potential to transform network monitoring by converting fibre optic cables into thousands of acoustic sensors, enabling continuous, real-time detection of leaks, bursts, and third-party interference over long distances. The solution must be scalable, cost-effective, and capable of integrating with Thames Water's existing systems and operational workflows. Thames Water is interested in identifying potential service providers who can propose solutions that directly address this challenge. Providers will need to demonstrate how their approach will deliver reliable coverage, actionable insights, and long-term value. Key considerations include deployment strategy, data quality, system integration, and support for future enhancements in predictive maintenance and leakage reduction. The successful partner(s) will play a critical role in helping Thames Water achieve its strategic goal of near-total trunk main monitoring coverage through fibre sensing. Thames Water reserves the right to refine the award criteria. Please note that that deadline for asking for access to the PSQ & submitting of the PSQ is Thursday 19 March at 10 am. ### Lot Information Lot 1 Options: Thames Water reserves the right to: * Extend the contract beyond the initial 2 year term through one or more extension periods, up to a maximum contract end date of 30 June 2034. * Procure additional quantities of the DAS fibre sensing solution, associated hardware, software licences, analytics modules, and related support services where these are consistent with the scope and purpose of the original contract. * Implement further deployments across additional trunk main routes as operational priorities evolve, subject to the overall contract value and term limits. Renewal: Thames Water envisages that the contract will be awarded for an initial term of 3 years with options to extend by 1 year or longer, up to a maximum overall term of 8 years. ## Key Details | Field | Value | | --- | --- | | Publication source | Find A Tender Service | | Latest notice | https://www.find-tender.service.gov.uk/Notice/022095-2026 | | Notice type | UK4 - Tender Notice | | Procurement type | Standard | | Procurement category | Services | | Procurement method | Selective | | Procurement method details | Competitive flexible procedure | | Tender suitability | Not specified | | Awardee scale | Not specified | | All stages | Tender | ## Dates | Field | Value | | --- | --- | | Publication date | 12 Mar 2026 | | Submission deadline | 23 Feb 2026 | | Future notice date | Not specified | | Award date | Not specified | | Contract period | 30 Jun 2026 - 30 Jun 2031 | | Recurrence | Not specified | ## Values | Field | Value | | --- | --- | | Tender value | £7,000,000 | | Lots value | £7,000,000 | | 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 | THAMES WATER UTILITIES LIMITED | | Locality | READING | | Post town | Reading | | Postcode | RG1 8DB | | Country | England | | ITL 1 | TLJ South East (England) | | ITL 2 | TLJ1 Berkshire, Buckinghamshire and Oxfordshire | | ITL 3 | TLJ16 Berkshire West | | Local authority | Reading | | Electoral ward | Thames | | Westminster constituency | Reading Central | | Delivery location | TLI London, TLJ South East (England) | ## CPV Codes ### Divisions - 35 - Security, fire-fighting, police and defence equipment - 50 - Repair and maintenance services ### Codes - 35125100 - Sensors - 50334110 - Telephone network maintenance services ## Release History - 12 Mar 2026 at 08:18 - TenderUpdate - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/022095-2026 - 9 Feb 2026 at 16:55 - Tender - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/011563-2026 ## Documents - https://www.find-tender.service.gov.uk/Notice/022095-2026 12th March 2026 - Tender notice on Find a Tender - https://www.find-tender.service.gov.uk/Notice/011563-2026 9th February 2026 - Tender notice on Find a Tender ## Notice URLs - https://forms.office.com/e/jNb2QYbbZN - 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-064baa. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-064baa.json.