Consumer Focus has praised cheap energy provider EDF for becoming the third of the UK's largest energy suppliers to suspend doorstep selling.
The organisation said that the company's decision to terminate its door-to-door sales strategy puts pressure on the other three Big Six firms to stop their own programmes.
Audrey Gallacher, director of energy at the consumer group, said: "Doorstep sales are clearly not working for many consumers, with hundreds of thousands of people switching to a worse deal on their doorstep.
"Consumers don't want or need cold call energy sales that make them feel pressured to switch at the door and don't offer the best rates."
Research from Consumer Focus has shown that nine out of ten people who have bought energy products through doorstep selling would never do so again.
Only one per cent of those surveyed said this method is a good way to find out about offers and just four per cent were positive about doorstep sales.
The other three firms that continue to operate doorstep selling are npower, E.ON and Scottish Power.
If you want to find out more about how to compare energy suppliers and save up to £453 in minutes, click here.