What This Framework Covers
On 20 July 2026 Thames Water Utilities Ltd published a UK4 Tender Notice (reference 2026/S 000-068235) for a multi-supplier framework agreement covering sewer rehabilitation, CCTV survey and cleaning works across its entire operational area — London and the South East of England.
The framework is split into two lots reflecting the scale and complexity of rehabilitation works required across Thames Water's wastewater asset base. The initial contract term runs from 26 April 2027 to 25 April 2030, with extension options up to 25 April 2035 — meaning the winning contractors will be embedded in Thames Water's AMP8 delivery programme for up to eight years.
Enquiries to Thames Water close on 3 August 2026 at 5:00pm. If you have questions about the scope, evaluation criteria or lot requirements, you must raise them before this date. The PSQ itself closes 17 August 2026 at 12:00pm.
The Two Lots
Low value and non-complex CCTV survey, cleaning and structural rehabilitation works on gravity and rising mains. NEC4 ECSC contract. Call-offs via proportional allocation or competitive selection.
High value and complex programmes including structural lining, pipe replacement, pipe bursting and associated civil works. NEC4 ECC Option B or D contract. Larger scheme delivery capability required.
Companies may apply for one or both lots. Thames Water has indicated that preference may be given to suppliers who demonstrate capability across a greater part of the overall requirement.
Scope of Works
The framework covers a wide range of sewer rehabilitation and associated activities:
Some works involve proximity to or working on railway infrastructure. Contractors bidding for such elements must hold the required accreditations and appropriate insurance levels.
Evaluation and Pricing
The award criteria split across quality and price as follows: Delivery & Technical (40%), Commercial (40%), Safety & Environmental (20%). At framework award stage, contractors submit a Schedule of Rates covering labour, plant and equipment, daywork and fees. These rates form the baseline for all call-off contracts under the framework and represent the maximum permissible rates at call-off stage.
This procurement uses the competitive flexible procedure under the Procurement Act 2023. It involves a PSQ stage, followed by an Invitation to Tender (ITN) with legal derogations review, initial tender assessment, negotiation/clarification rounds, and a final commercial submission before award. Up to ten suppliers per lot will progress to ITN — only six per lot will be appointed to the framework.
Participation Requirements
Thames Water has set a minimum annual turnover threshold of £6m for both lots. In addition, applicants must demonstrate financial stability and have required insurance levels in place at the point of award. Full legal and financial conditions are set out in the PSQ documentation.
The framework is classified under the Utilities special regime, meaning specific procurement rules applicable to private utility companies apply rather than the standard public procurement rules.
How to Apply
Interested contractors must complete and submit the PSQ request form at: forms.cloud.microsoft/e/mNikUADXFd
For questions about the procurement, contact Thames Water's procurement team at procurement.support.centre@thameswater.co.uk. All enquiries must be submitted before 3 August 2026 at 5:00pm.
Key Facts at a Glance
- Notice reference: 2026/S 000-068235 — Thames Water Sewer Rehabilitation inc. CCTV and Cleaning
- Published: 20 July 2026
- Total value: £189,674,389 (ex VAT) · £227,609,266 (inc VAT)
- Lot 1 — Non-complex / Below ~£3m: £89.6m · Lot 2 — Complex / Above £3m: £100.1m
- Maximum 6 suppliers per lot (12 total across the framework)
- Minimum £6m annual turnover required
- Contract dates: 26 April 2027 to 25 April 2030 (extendable to April 2035)
- Supply area: London and South East England
- Enquiry deadline: 3 August 2026, 5:00pm
- PSQ deadline: 17 August 2026, 12:00pm
Water Industry Hub® — 7,835+ Sector Suppliers
The UK's most comprehensive water sector intelligence platform. Live tenders, AMP8 framework tracking, and supplier intelligence updated daily.
View All Live Tenders Browse the DirectoryThames Water Sewer Rehabilitation CCTV AMP8 Framework Tender Structural Lining Pipe Bursting London South East
Source: Find a Tender — Notice 2026/S 000-068235, published 20 July 2026. Thames Water Utilities Limited, Clearwater Court, Reading. Information verified against primary source. Published 26 July 2026.