UK Government to Intervene Directly in Water Bill Setting for First Time

By Olivia Hart

Average water bills in England and Wales are set to rise 36% over the second half of the decade — and the UK government has now decided that outcome is no longer acceptable. Environment Secretary Angela Eagle has told suppliers she will intervene directly in the next Ofwat price review, the first such government intervention in the regulator's five-year process.

Eagle has written to regulators and water company chief executives, stating that the review must meet specific government priorities. Those include better value for money for bill payers — though, notably, she stopped short of demanding actual bill cuts.

What does the intervention actually change?

The letter sets out clear demands. Companies must focus investment on new technology to save money, act early on leaks and sewage overflows, and hand far greater decision-making power to local communities and leaders. Affordable bills come first.

"Affordability means a laser focus on value for money for customers," the letter states. Eagle also names what the public expects: "They want clean rivers. They want reliable water services. They want to know that their money is being spent wisely, and that bills are kept affordable."

She warns bosses the review will "not be a business-as-usual price review … it is the beginning of a long-term transition to a different model for the water sector." Strong language. But the letter is not a statutory instrument, and the government has not said what happens if companies ignore it.

Sources at the Department for Environment, Food and Rural Affairs (Defra) said the move is a "down payment" on bigger changes in the government's 10-year infrastructure plan, which follows next week's budget and is expected to hand ministers more robust powers to lower bills and direct local investment.

A Defra source said: "Angela will take a much more bullish approach to telling water companies and regulators what is expected from them. This is the start of a journey to a very different water system and one that delivers for the public."

The same source acknowledged the timing: companies are already making decisions ahead of the next price-setting process, due to conclude in 2029. "There are also things we want regulators and companies to be doing now and so Angela is using the levers she's got to influence their investment decisions at an early stage and make sure they've got no excuses," the source said. Ownership structures, they added, remain on the table.

The intervention forms what Defra called "one of the clearest symbols of public frustration with Britain's infrastructure" — the first in a series of water industry announcements expected in the coming months.

Why now? Thames Water and the £104bn bill revolt

Context matters. The last price review, concluded in 2024, authorised a £104bn modernisation programme funded largely through annual bill increases. Southern Water customers face the steepest rise: 53% by 2030, taking average bills to £642 per year.

Over the summer, several major suppliers asked to charge billions more to cover mounting capital costs and debt obligations, provoking fury from campaigners and politicians, including Chancellor Andy Burnham. The prime minister criticised the decisions, warning bill payers must not be treated as a "blank cheque" or a "bottomless source of funding for other people's failures."

The government is simultaneously exploring radical options for Thames Water, which is running out of cash and recently asked creditors for an additional £2.4bn. The Guardian reported Burnham has told officials to consider options previously deemed infeasible, even if that means spending taxpayer money and going to court. Burnham has previously pledged to nationalise the company but has struggled to find a route that avoids billions in spending, a lengthy court battle, or both.

Will bills actually fall?

Campaigners for public ownership doubt it. Sophie Conquest, lead campaigner at We Own It, said: "These proposals are yet more reshuffling of the deckchairs on the Titanic, and fall far short of Burnham's promise to end 40 years of neoliberalism."

"This government should be intervening on behalf of households to stop bill hikes. If water companies can't function without siphoning more and more money out of our pockets, then this government should let them go bust," Conquest said, arguing water could then be brought "affordably into public hands."

Eagle's letter promises a transition. What it does not promise — and cannot yet deliver — is a single penny off any household bill before the review concludes in 2029.