Prime Minister David Cameron will take action to help households struggling to meet rising water bills, his spokesman said.
"There'll be some progress next week on water bills," the spokesman said. "The prime minister wants to see household expenditure being brought down."
His comments suggested that Britain's biggest water companies could join energy giants at the centre of a political row over the rising cost of living ahead of an election in 2015.
More top news
The friends of a Czech businessman who was beaten to death raise £10,000 in a day to send body of 'great man with a big heart' back home
The Olympians rounded off their success in Rio with a personal triumph as they confirmed they have tied the knot.
The foreign secretary called for tougher action against Russia in an effort to halt the "barbaric" attacks on rebel-held Aleppo.