Future of Thames Water

Motion made, and Question proposed, That this House do now adjourn.—(Claire Hughes.)

Motion made, and Question proposed, That this House do now adjourn.—(Claire Hughes.)

I will discuss the future of Thames Water, starting with Thames Water’s record of pollution and environmental failure, and how it impacts everyone in my Witney constituency. Thames Water serves the constituency and embodies the systemic failure of the national water sector. Last year, Thames Water pumped sewage into rivers and lakes for 107,822 hours.

West Oxfordshire is very much ground zero for sewage. We have the Thames, the Evenlode, the Windrush, Shill brook and the Cole. We also have WASP, or Windrush Against Sewage Pollution, which has been so active in going after Thames Water’s bad behaviour. It has mapped the illegal sewage spills at Thames Water sewage treatment works and found that, between 2021 and 2025, there were 1,231 illegal spills just in the Witney constituency, and 271 illegal spills in just one sewage treatment works, Faringdon.

West Oxfordshire district council has done great work in trying to hold Thames Water to account, as has WASP, which inspired the Channel 4 programme “Dirty Business”, which many hon. Members will have seen, so well done to Peter, Ash, Geoff and Vaughan. Despite Thames Water’s appalling record, residents have seen their bills skyrocket. I have constituents whose bills have gone up by 50% and 70%; I even have one whose bill has gone up by 93%. That is outrageous, but those bill hikes are not making the situation any better. That is because Thames Water’s financial situation is disastrous. Thames has nearly £20 billion of debt.

I thank the hon. Gentleman for making his speech, because this is hugely important. Residents in Harlow are also fed up with their bills going up because of what appears to be Thames Water’s incompetence. Does he agree that that should not be the case, and that if Thames Water is so incompetent that it cannot sort out this problem, the Government need to step in and do something about it?

I completely agree, and Thames Water’s full-year accounts are out at 7 am tomorrow morning. We will see just what they tell us. It is going to be ugly, not least because the company’s equity is worthless. The largest equity shareholders wrote down their shareholding to zero value and withdrew their board members more than two years ago. When Thames Water’s creditors sought to take on another £3 billion of debt last year, I was given permission to intervene in the High Court and speak for the interests of Thames Water’s 16 million customers, who are paying all these outrageous costs and interest expenses, but would otherwise have had no voice in court.

This Labour Government have slow-peddled for the last two years, and have refused to draw a line under decades of Tory bad behaviour by putting Thames Water into special administration. This approach is costing customers an absolute fortune. Thames Water paid £338 million just in interest expenses in the six months to September 2025. That is £133 million more, just in interest expenses, than it paid in the same period the previous year.

Labour is taking this hands-off approach despite the company’s multiple breaches of its operating licence. Let me illustrate some of those breaches. As I have stated, the company has carried out more than 1,000 illegal spills over four years. It must hold two investment-grade credit ratings as a condition of its operating licence, but it last held any investment-grade credit rating two years ago, in July 2024, and it has undergone a change of ultimate controller; yet the Minister, the Secretary of State and Ofwat have repeatedly refused to answer on that point.

We have a similar problem with South East Water, which is probably the second-worst water company in the United Kingdom after Thames Water. With South East Water, too, this Labour Government have been too timid. Does my hon. Friend agree that the Government, by acting, or not acting, in the way that they are, they are privileging shareholders over consumers?

Absolutely. The consumers are getting the raw deal, and there is no end in sight.

To qualify as an ultimate controller—it is a defined term—a party need only have material influence over Thames Water. The creditor consortium right now is negotiating bilaterally with the company, and has put in £3 billion, but somehow that does not make it meet the criterion. It is ridiculous, and frankly, seeing this failure play out was probably the single moment when I most despaired of government and the rule of law. I repeatedly ask the same question, and repeatedly do not get an answer. I find it really, really bad.

Residents in Wokingham are absolutely sick of the failures of Thames Water’s management. In 2025 alone, Thames Water committed 74 sewage spills, for a duration of 684 hours. That means that Thames Water dumped sewage for the equivalent of 456 football matches, and there were certainly no clean sheets. No waterway in Wokingham is safe—

Order. The hon. Gentleman should be aware that interventions should be short, spontaneous and perhaps not pre-typed and three pages long.

I thank my hon. Friend.

Rather than having customers pay hundreds of millions of pounds of debt at ludicrous interest rates of nearly 10%, Thames Water should be taken into a special administration regime, which is commonly known as bankruptcy on insolvency grounds. I urge the Government to pursue a SAR on the basis of insolvency, as this is a more straightforward way to secure special administration than on a performance basis, and it will give the special administrator additional powers and a stronger position in relation to the creditors.

The Water Industry Act 1991 sets out triggers linked to financial insolvency. Among them is the company being unable, or likely to be unable, to pay its debts. The Secretary of State and Ofwat both have discretion to apply to the High Court for a special administration order if that condition is triggered. I understand that the Government currently do not have, and have refused to publish, a SAR assessment policy. That is despite the Cunliffe review concluding that there is a need for

“broad, judgement-based tests within a clear policy, that has been set out in advance, of how the regulator will assess failing companies against these tests, the factors it will take into account and the indicators it will consider.”

That is from paragraph 793, recommendation 59, of the final report. Clarity around those tests and when a SAR will be used would benefit the water sector and its investors. Importantly, it also increases the Government’s negotiating leverage with the class A creditor consortium by further increasing the credibility of the threat of a SAR. I am interested to hear from the Minister why the Department for Environment, Food and Rural Affairs is so reluctant to publish those tests.

A SAR process would allow Thames Water’s debt to be written down substantially, very likely into single-digit billions. This write-down is crucial, and it is not punitive. The write-down should be sufficient for the company to leave the SAR with a balance sheet that is strong enough to manage the huge spend that will be required over the next decade or so on treatment works and pipe networks.

Does my hon. Friend agree that we need Thames Water to go into special measures, so that it can invest in infrastructure? In my constituency, Thames Water has closed a road for three weeks in Horsell because it has not invested, and it dumped over 1,115 hours-worth of sewage last year into our River Wey. That lack of investment is why we need what he is calling for today.

I completely agree with my hon. Friend. That is what is going on up and down the catchment writ small, with treatment works deferred despite being crucially needed. In Aston, we have sewage running down the street year after year, and it is the same in Standlake. It is just disgusting, and there is no end in sight.

A SAR process would allow the Government to use the period while Thames Water is in a SAR to put much of the good work from the Cunliffe review into new legislation, and to do the legwork to enable the company to exit as a mutual. Crucially, a SAR would not ultimately cost the Government anything—this really matters—because they will recoup all the funding spent on a SAR, as this new funding injected by the Government would be super senior to all other funding. I am very grateful to the former DEFRA Secretary, Steve Reed, for setting out in a letter to the—

Order. The hon. Gentleman means to say, “the former Secretary of State for DEFRA, the right hon. Member for Streatham and Croydon North (Steve Reed).”

My apologies, Madam Deputy Speaker.

I am grateful to the former Secretary of State for setting out in a letter to the Environment, Food and Rural Affairs Committee in June last year that

“we expect that any Government funding required during a SAR would be recouped after the conclusion of the administration”.

The current Secretary of State set out the same point in a parliamentary debate on 16 June. It is also worth noting that the Tories—there are not any in the Chamber—continue to refuse to acknowledge this, and that Teneo, Thames Water’s own expert adviser, stated the same in its report to the High Court in December 2024.

My hon. Friend is making a powerful argument. Does he agree that the Government’s reluctance to take a company that is clearly now technically insolvent into a SAR is loading costs on to consumers who use other water companies, by creating a moral hazard that means that companies are incentivised to take on ever more debt, with the debt providers being protected by the Government? Instead, the Government should allow companies to fail, if they are going to fail, and to be taken into a SAR, so that there can be investment in the infrastructure that my hon. Friends referred to.

I agree 100%, and that is what is so depressing; by continuing to demonstrate that the regulators have no teeth, we create a bigger and bigger problem for ourselves.

The alternative to a SAR—a deal with the creditors, which, extraordinarily, seems to be the Government’s preferred option at this point—should not be countenanced. Giving these businesses, now operating as London & Valley Water consortium, yet more control of the company at ludicrously high interest rates would allow this downward spiral to continue. The Government must and can change course by using their power to ask for a SAR under existing legislation.

There is now the opportunity for Thames Water to exit special administration as a mutual, owned and run in the interests of its customers, and to break the cycle of financial mismanagement and egregious environmental failings once and for all. Legislation sets out that a water company insolvency SAR can conclude in two ways: rescue, whereby the company is restructured, debts are written down or converted, and the existing legal entity continues in a modified form; or transfer, whereby the regulated undertaking is sold or transferred to a new owner. That does not require a competitive auction, as the legislation provides for a transfer approved by the Secretary of State and Ofwat.Nothing in the legislation states that either route requires a competitive sale, as the overriding objective in a SAR is continuity of public service, not maximising creditor returns.

The Government could therefore set out at the point of SAR entry, or shortly after, that a mutual is the preferred exit route for Thames, and make that clear in the special administrator’s mandate. Work would need to be done in parallel with the SAR process to incorporate and put in place the governance framework for a new mutual, as well as more broadly updating water regulations to take into account the Cunliffe report’s recommendations. Ofwat could then work towards a licence transfer to the mutual, rather than running a market sale.

I thank the hon. Member for Witney (Charlie Maynard) for inviting me to respond to his concerns about the future of Thames Water. I have listened with his interest to his comments, and I hope I will be able to add some facts to the debate. I also accept his sympathy and anger on behalf of his constituents. Indeed, they must feel very angry about the fact that water was left in such a state, and that the Environment Agency’s budget was cut by half by the coalition Government, who also introduced self-monitoring. The Environment Agency was unable to fulfil its duties during the time of the coalition Government, and the regulators did not put forward forceful accountability for the water companies. It was left to this Labour Government to clear up the mess left by the coalition Government and 14 years of the Conservatives. I am sure the hon. Gentleman shares my anger about that—I certainly felt angry about it when I came into government and saw the mess that we had been left to clear up.

Let me remind the hon. Gentleman exactly what we have done. We introduced the Water (Special Measures) Act 2025 within six weeks of entering government, to raise standards, enforce accountability, and make pollution cover-ups a criminal offence. We banned more than £4 million in bonuses, and unlocked money in private investment to rebuild vital infrastructure. Just last week we introduced automatic penalties. There is more I could mention, including 10,000 water inspections, which is many more than happened after the slash and burn of funding for the Environment Agency by the coalition Government. We have restored to the system the accountability that has been missing for so long.