New research has revealed that the number of complaints made about British Gas's customer service have fallen by nearly 90 per cent in the past 12 months.
The study by energywatch also found that the total number of contacts that it has received about the gas and electricity supplier fell by 72 per cent in the year up to April 2008.
It was also found that the company performed better than any other supplier on complaints about sales.
Phil Bentley, managing director of the energy provider, said: "Customer service is the number one priority for us, so I'm delighted to see that the effort we have put in is making such a difference."
He added that "there is no room for complacency" and the company will continue to work to improve its service.
British Gas recently revealed it is planning to reduce the carbon intensity of its electricity by a further 11 per cent by 2020.
The company stated that at the moment, its electricity supplies are already greener than the rest of the UK's other major firms.
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