Thames Water wants 11% price rise to pay for 'super sewer'
Thames Water has said it wants to increase bills for its 14 million customers by 11% between 2015 and 2020.
The company says the increase is needed to help pay for a "super sewer" being built across London.
On Monday, water companies in England and Wales submitted price proposals for the period to the regulator, Ofwat.
Nine other firms said they would cut bills or leave them flat in real terms.
Simon Gompertz reports.