Millions face higher water bills as suppliers allowed £3.4bn extra spending
Millions of households in England and Wales are likely to face higher water bills after Ofwat approved £3.4bn of additional spending by water companies. The regulator said the money would help fund infrastructure needed for new homes, datacentres, safer water services and pollution reduction, but it adds pressure on customers already facing substantial bill rises.
The extra funding sits alongside a £104bn investment programme for 2025-30, which had already been expected to raise bills by 36% over the second half of the decade. Thirteen companies sought £4.3bn in extra allowances; five, including Thames Water and Southern Water, may raise bills further before 2030, while others will recover costs in the 2030s. The approved spending includes £1.2bn to protect services and assets, £477m for housebuilding and datacentres, and £34m to reduce toxic chemicals in water systems.
- Ofwat approved £3.4bn in extra water-company spending.
- Some customers will face additional bill rises before 2030.
- Funding supports housing, datacentres and cleaner drinking water.
Both sides, in good faith
The strongest fair case each way — we don't pick a winner.
The case for
Supporters argue that extra investment is necessary to keep water infrastructure reliable as populations grow and demand from new housing and datacentres rises. They contend that allowing funding now can prevent larger costs later, improve resilience to droughts and leaks, and ensure developers and businesses do not overwhelm ageing networks. The underlying priority is maintaining a secure public service and enabling planned economic development.
The case against
Critics argue that households should not be asked to pay more when many water companies have faced persistent concerns over leaks, sewage discharges, debt and shareholder returns. They contend that firms should first demonstrate efficient use of existing revenues and finance expansion more fairly, particularly where it benefits private development or large commercial users such as datacentres. The underlying priority is affordability, accountability and preventing essential-service customers from carrying disproportionate risk.