Thames Water presses on with £4bn framework as rescue talks continue
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Thames Water has named 9 contractor teams to its Major Projects Framework, the route it will use to let its largest water and wastewater schemes in London and the South East. The award notice, published on Oct. 23, puts the framework’s estimated value at £4 billion excluding VAT.
The 9 places are shared between 12 companies. BAM Nuttall, Barhale, Costain, Galliford Try, J. Murphy & Sons, Kier, and Mott MacDonald Bentley each hold a place alone. Ferrovial shares one with Binnies and Cadagua, a Bilbao-based Ferrovial company, while Taylor Woodrow and Amentum share another.
Contracts can be signed from Nov. 4, once an 8-working-day standstill period ends. The framework then runs to March 31, 2030, with an option to extend to March 31, 2035, carrying it from the current AMP8 regulatory period into AMP9.
For the firms involved, the award offers years of potential work. It also ties that work to a client whose ownership and finances are still unresolved.
A place on the Thames Water framework does not guarantee work
A framework place is not a contract for a fixed scope of work. The notice says Thames Water will award project-specific contracts through call-offs, covering pre-construction services, engineering, construction, and associated works, goods, and services. Each project still needs its own approvals, and the earlier tender notice said work would be awarded with competition between framework members.
That changes how the £4 billion figure should be read. It is an estimate of what could flow through the framework over its life. The award notice repeats the same value against each of the 9 contracts, matching the total the tender notice set for the whole framework, and no single contractor is promised any share of it.
Winning a place gives a contractor the right to compete for Thames Water’s biggest schemes for more than 8 years if the extension is used. Turnover then depends on how many projects win approval, and how quickly they reach site.
When Thames Water tendered the framework, it said it wanted long-term partnerships and less unnecessary bidding. For tier 1 contractors used to pricing each scheme from scratch, that model promises a steadier workload, provided the pipeline arrives.
The framework was tendered for 8 suppliers but awarded to 9
The tender notice, published in September 2025, capped the framework at 8 suppliers. It said Thames Water would invite the 10 highest-scoring applicants to tender and award places to up to 8 of them. The award notice lists 9 places. Neither notice explains the change.
Thames Water’s timetable also slipped. Its tender notice estimated an award decision on March 17, 2026, with the framework starting on March 31. The decision came on Oct. 23, about 7 months later.
A larger panel could spread a heavy AMP8 workload across more delivery teams. Thames Water has not said whether that was the reason, so the extra place leaves contractors and observers to draw their own conclusions.
The evaluation itself leaned towards capability over price. Quality carried 60% of the tender weighting and cost 40%, with technical questions on pre-construction and programme delivery, risk and commercial management, collaboration, health and safety, and innovation.
Contractors are committing to a client still in rescue talks
Thames Water’s future remains open as the award lands. The company is still in talks with creditors, the London & Valley Water consortium, Ofwat, and other regulators over a recapitalisation, and it has said it does not expect to complete that process before its current funding runs out around the turn of the year.
This month it asked creditors to enlarge its emergency funding facility, saying the extra money would let it keep delivering its capital programme. The government has also considered special administration as an alternative to a creditor-led deal.
For contractors, that creates a specific kind of exposure. Payment terms, project approvals, and the pace of call-offs all depend on the client’s financial position. A change of ownership or a move into special administration could reorder priorities, although the need for treatment works, pipelines, and network upgrades would remain.
The companies on the framework bid with that risk in view, and stayed in a process that ran months behind schedule. That suggests they see Thames Water’s long-term investment need as worth the exposure.
What is still unclear is how quickly the first call-offs will follow, and whether Thames Water’s ownership will be settled before they do. The larger question is whether a utility still negotiating its own rescue can turn a £4 billion framework into steady work on site.
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