Planning

Sewer Sealing Request for Information

SOUTHERN WATER SERVICES LIMITED

This public procurement record has 1 release in its history.

Planning

15 Oct 2025 at 13:11

UK2 - Preliminary Market Engagement Notice
Summary of the contracting process

Southern Water Services Limited, based in Worthing, UK, is in the planning stage of a public procurement process for a project titled "Sewer Sealing Request for Information". This initiative falls under the utilities industry category and involves identifying suppliers with expertise in sewer sealing techniques. The procurement process aims to support the organisation’s goal of reducing water infiltration and storm overflows in its sewer network. Key activities include a market engagement exercise beginning with a Request for Information (RFI) scheduled for release on 17th October 2025, with responses due by 15th November 2025. The tendering phase is anticipated to start in late 2025 or early 2026, focusing on works to be executed in AMP8 with contracts commencing in 2026 and valued at approximately £120 million.

This tender presents significant opportunities for businesses skilled in sewer sealing, particularly those experienced in advanced techniques such as Cured-in-place pipe (CIPP) lining, slip-lining, and various grouting methods. Companies offering integrated services, including traffic management and emergency response, will find this procurement particularly advantageous. Small and medium-sized enterprises (SMEs) are encouraged to participate, given the project's design to support scalability and regional service delivery. The overall procurement process is positioned to foster innovation and capacity building, making it a strategic opportunity for suppliers to enhance their engagement with a major utility provider.

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Notice Information

Notice Title

Sewer Sealing Request for Information

Notice Description

Southern Water is committed to reducing storm overflows and managing the volume of water entering the sewer network. A key part of this strategy involves sealing sewers to limit water infiltration and inflow, helping to protect the environment and improve network resilience. We are inviting suppliers with proven expertise in sewer sealing to participate in this market engagement. The aim is to assess capabilities to deliver planned programmes using recognised industry techniques for sealing groundwater out of pipes such as: * Cured-in-place pipe (CIPP) lining * Pull-in-place liners * Slip-lining * Fold-and-form liners * Full-length polymer coatings * Targeted patch repairs * Packer/resin injection * Chemical/polyurethane grouting * Cementitious grouts * Mechanical joint seals * Manhole rehabilitation * Top Hat Installation * Hot cure methods e.g Inversion, Steam Cure, UV light, LED light. * Other sewer sealing/pathing techniques and innovations * Other sewer sealing/pathing techniques and innovations Information requested * Overview of your experience and proven track record with the major sewer sealing techniques listed (though not exhaustive) above. * Current and forecasted delivery capacity including crews and annual throughput. * Possible geographical split for delivery including any regional offices, depots, or preferred operating areas. * In-house technical capabilities and certifications for CCTV surveying, cleaning, lining, injection grouting, manhole rehabilitation and post-work validation. * Ability to provide turnkey services including traffic management, reinstatement, emergency response and accurate reporting. * Your appetite for sewer sealing supply chain innovation This engagement is separate from the Wastewater Network Services - Lot 4, which focuses on reactive repair and maintenance of live assets. Instead, this initiative is forward-looking, targeting proactive sealing interventions to support our long-term environmental and operational goals. Purpose and scope The objective is to identify contractors able to programme and deliver sewer sealing works at scale, reduce inflow and infiltration, and restore or improve hydraulic and structural integrity across our sewer network. We seek information on supplier capacity, mobilisation readiness, geographic delivery options, and in-house technical capabilities for both pipe and manhole interventions. Tender Tender is planned to commence in late 2025/early 2026 to support planned Sewer Sealing work in AMP8, Contract commencing in 2026.

Planning Information

Southern Water is initiating a market engagement exercise to help shape our future procurement strategy for Sewer Sealing services. This will begin with the release of a Request for Information (RFI). We encourage all interested suppliers to participate. Please note that Southern Water reserves the right to engage in further discussions with any organisation, regardless of whether they respond to the initial RFI. Depending on the insights gathered, we may follow up with: One-to-one meetings (either in person or online), A live Marketplace event or townhall session (either in person or online), and/or a second RFI, if deemed necessary. The initial RFI is scheduled to be issued on 17th October 2025.

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-05cd5a
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/065612-2025
Current Stage
Planning
All Stages
Planning

Procurement Classification

Notice Type
UK2 - Preliminary Market Engagement Notice
Procurement Type
Standard
Procurement Category
Works
Procurement Method
Not Specified
Procurement Method Details
Not specified
Tender Suitability
SME
Awardee Scale
Not specified

Common Procurement Vocabulary (CPV)

CPV Divisions

44 - Construction structures and materials; auxiliary products to construction (except electric apparatus)

45 - Construction work

90 - Sewage, refuse, cleaning and environmental services

CPV Codes

44130000 - Sewer mains

44163130 - Sewer pipes

45232400 - Sewer construction work

45232410 - Sewerage work

90470000 - Sewer cleaning services

90491000 - Sewer survey services

Notice Value(s)

Tender Value
£100,000,000 £100M-£1B
Lots Value
Not specified
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
15 Oct 20254 months ago
Submission Deadline
Not specified
Future Notice Date
2 Mar 20261 weeks to go
Award Date
Not specified
Contract Period
31 Jul 2026 - 1 Aug 2030 4-5 years
Recurrence
Not specified

Notice Status

Tender Status
Planning
Lots Status
Planning
Awards Status
Not Specified
Contracts Status
Not Specified

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
SOUTHERN WATER SERVICES LIMITED
Contact Name
Not specified
Contact Email
chris.bashford@southernwater.co.uk
Contact Phone
Not specified

Buyer Location

Locality
WORTHING
Postcode
BN13 3NX
Post Town
Brighton
Country
England
Major Region (ITL 1)
TLJ South East (England)
Basic Region (ITL 2)
TLJ2 Surrey, East and West Sussex
Small Region (ITL 3)
TLJ27 West Sussex (South West)
Delivery Location
Not specified
Local Authority
Worthing
Electoral Ward
Northbrook
Westminster Constituency
Worthing West

Further Information

Notice Documents

Open Contracting Data Standard (OCDS)

View full OCDS Record for this contracting process

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The Open Contracting Data Standard (OCDS) is a framework designed to increase transparency and access to public procurement data in the public sector. It is widely used by governments and organisations worldwide to report on procurement processes and contracts. 

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