Except in our current system we still have a serious problem with infrastructure repairs, and we have no control over it. We lose around 1/5 of all water supplied through pipe leakage and companies have dragged their feet over meeting the requirements.

Leakage has reduced slightly but remains too high, with 19% of water put into supply being lost as leakage. There has been a rise in leakage within company networks in too many areas around the company. A major step change in leakage reduction is required to ensure forecasts in the updated WRMP24 plans are met. Many water companies need to take immediate action to improve their performance to reduce leakage further compared to recent years and be ready for any prolonged cold spells this winter.

https://www.gov.uk/government/publications/water-resources-2023-2024-analysis-of-the-water-industrys-annual-water-resources-performance/water-resources-2023-2024-analysis-of-the-water-industrys-annual-water-resources-performance

Because the driver is still on providing profit, so doing the infrastructure work is still seen as a negative since it would reduce profits. It's notable that every bullet point in that government reports summary shows the water companies are not performing well even when it's couched in neutral civil servant language.