12 August 2013 Last updated at 03:24 ET
Thames Water's proposed price rise is equivalent to an extra £29 per household
Thames Water has asked its regulator, Ofwat, for permission to raise prices.
It wants to put up bills by about £29 per household during 2014-15, but has asked Ofwat if it can spread the rise over more than one year.
The company says the rise is needed because of increases in Environment Agency charges and to cover the cost of preparing for the construction of the Thames Tideway Tunnel.
Ofwat will examine the proposal and make a decision in three months.
Source: BBC News - Business http://www.bbc.co.uk/news/business-23663406#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa
