Nearly 25 million households are facing extra bill hikes from water firms that have been losing more than a billion litres of water a day to leaks, analysis by The i Paper has found.

Five suppliers – Severn Trent Water, Southern Water, Thames Water, Wessex Water and South East Water – are set to be given the green light to increase bills by an additional £3.4bn between them in the coming years.

Analysis by The i Paper has found that these companies have lost 1.2 billion litres of water a day to leaks between them, sparking anger from campaigners over the prospect of further bill hikes.

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Ofwat, the water regulator, had already given firms permission to charge their customers 36 per cent more for their services between 2025 and 2030.