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PROCUREMENT OPPORTUNITY

Trunk Mains AMP8 Roll Out: Distributed Acoustic Sensing (DAS) Fibre Sensing Solution

THAMES WATER UTILITIES LIMITED · Tender notice on Find a Tender

Tender information last checkedLast checked 3 Oct 2026, 22:37.

Opportunity overview

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.

Classification

  • CPV35125100 — Sensors
  • CPV50334110 — Telephone network maintenance services

Lots

  • Lot 1£7m

Documents and notices

Published notice details

Additional information from the published procurement release. Fields appear only when supplied by the source; check the original notice and tender documents before acting.

Scope, procedure and submissions

Id
TC2407
Status
active
Procurement Method
selective
Procurement Method Details
Competitive flexible procedure
Main Procurement Category
services
Above Threshold
Yes
How to submit
To gain access to this PSQ, please fill out the details in for link; https://forms.office.com/e/jNb2QYbbZN
Expression Of Interest Deadline
19 Mar 2026, 10:00

Legal basis

Id
2023/54
Scheme
UKPGA

Procedure

Features
This procurement will be conducted using the Competitive Flexible Procedure under the Utilities Contracts Regulations. Following publication of this notice, suppliers will be invited to complete a Pre Selection Questionnaire (PSQ). The PSQ will assess legal, financial, and technical capability against the stated conditions of participation. After evaluation of PSQ submissions, Thames Water will shortlist suppliers to participate in the Invitation to Negotiate (ITN) stage. The ITN is expected to commence in March 2026. Shortlisted suppliers will be required to submit detailed technical and commercial proposals. Thames Water may invite suppliers to present their proposed solution to stakeholders to support clarification of their ITN responses. Following evaluation of ITN submissions and presentations, Thames Water intends to complete supplier selection by June 2026.

Special regime

utilities

Submission terms

Electronic Submission Policy
allowed

Languages

en

Enquiry period

Ends
23 Feb 2026, 17:00

Expected award period

Ends
1 Jun 2026, 23:59

Amendments

Entry 1
Description
Please note the deadline has been extended. The deadline to submit your PSQ documents is now 19 March at 10 am.
Id
022095-2026

Lots and requirements

Entry 1
Id
1
Status
active
Has Renewal
Yes
Has Options
Yes

Value

Including VAT
8,400,000
Amount
7,000,000
Currency
GBP

Award criteria

Criteria

Criterion 1
Type
quality
Name
Technical - Functionality of proposed solution
Description
Meeting all the mandatory functional requirements. Meeting all or most of the desirable functional requirements (written response).

Numbers

Entry 1
Number
45
Weight
percentageExact
Criterion 2
Type
quality
Name
Technical - Functionality of proposed solution
Description
Meeting all the mandatory functional requirements. Meeting all or most of the desirable functional requirements (Presentation).

Numbers

Entry 1
Number
25
Weight
percentageExact
Criterion 3
Type
price
Name
Commercial - Total Price of solution for the remainder of the AMP8 period (to 31 Mar 2030)
Description
Price of solution for the contract period.

Numbers

Entry 1
Number
10
Weight
percentageExact
Criterion 4
Type
quality
Name
Commercial
Description
Additional Commercial Responses regarding: Payment Terms, Service Levels, and additional value drivers.

Numbers

Entry 1
Number
20
Weight
percentageExact

Contract period

Starts
1 Jul 2026, 00:00
Ends
30 Jun 2031, 23:59
Max Extent Date
30 Jun 2034, 23:59

Renewal

Description
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.

Options

Description
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.

Items and delivery

Item 1
Id
1
Related Lot
1

Additional Classifications

Entry 1
Scheme
CPV
Id
35125100
Description
Sensors
Entry 2
Scheme
CPV
Id
50334110
Description
Telephone network maintenance services

Delivery locations

Entry 1
Region
UKI
Country
GB
Country Name
United Kingdom
Entry 2
Region
UKJ
Country
GB
Country Name
United Kingdom

Published documents

Entry 1
Id
conflictOfInterest
Document Type
conflictOfInterest
Description
Not published
Entry 2
Id
022095-2026
Document Type
tenderNotice
Notice Type
UK4
Description
Tender notice on Find a Tender
Published
12 Mar 2026, 08:18
Format
text/html

Buyer, suppliers and contacts

Organisation 1
Name
THAMES WATER UTILITIES LIMITED
Id
GB-COH-02366661

Identifier

Scheme
GB-COH
Id
02366661

Additional Identifiers

Entry 1
Scheme
GB-PPON
Id
PNQQ-4647-DTCV

Address

Street Address
Clearwater Court
Locality
Reading
Postal Code
RG1 8DB
Country
GB
Country Name
United Kingdom
Region
UKJ11

Contact

Roles

buyer

Details

Classifications

Entry 1
Scheme
UK_CA_TYPE
Id
privateUtility
Description
Private utility

Recorded locations

  • Buyer location · Reading · UKJ11 · RG1 8DB · United Kingdom
  • Delivery location · UKI · United Kingdom
  • Delivery location · UKJ · United Kingdom

Notice and amendment history

2 published notice versions reviewed by ProcuraAxis.

2 VERSIONS
  1. 011563-2026Tender notice on Find a Tender ·
  2. 022095-2026Tender notice on Find a Tender ·