Unresolved water complaints in England and Wales rise to near-decade high

Thames Water was the worst performer overall, with customers making more complaints about the company than any other supplier. Photograph: Leon Neal/Getty Images

The number of customer complaints that were unable to be resolved by water companies in England and Wales has risen by almost a third to the highest level in nearly a decade.

There was a 29% increase in 2023-24 in cases escalated to the Consumer Council for Water (CCW) by households that failed to achieve a resolution from their supplier, the watchdog said.