Exact amount water bills will rise by in April announced - how to cut your costsWater companies were previously granted permission by regulator Ofwat to raise average bills by 36% over a five-year period, to 2030View Image Water bill rises for April 2026 have been confirmed (Image: Liudmila Chernetska via Getty Images)Water bills in England and Wales will rise by an average of £33 a year from this April. ‌Water companies were previously granted permission by regulator Ofwat to raise average bills by 36% over a five-year period, to 2030. ‌Water UK said the increases are needed to deliver a £104billion investment programme to fund infrastructure and stop sewage spills. But campaigners said rising bills will be worrying for families who are already struggling with higher costs. “While we urgently need investment in our water and sewage infrastructure, we know that for many this increase will be difficult.