Hundreds of thousands of households could receive loft and cavity wall insulation under Eco+ running for three years from spring.
A £1 billion scheme to make middle-income homes more energy efficient has been launched along with a public information campaign advising people how to cut power usage.
Energy Secretary Grant Shapps confirmed the new Eco+ scheme to extend support for insulating homes as he tries to get households to reduce energy consumption.
Hundreds of thousands of households could receive loft and cavity wall insulation under the scheme running for three years from spring.
It is predominantly being targeted at households that do not currently get support to upgrade homes, though a fifth of the funding will be targeted at the most vulnerable.
Some £18 million will also be spent on a public information campaign giving advice about turning down boiler temperatures and radiators to save energy.
The Government has set an ambition of reducing energy use by 15% by 2030 as it battles the spiking energy prices caused by Vladimir Putin's war in Ukraine.
Shapps said: "A new Eco scheme will enable thousands more to insulate their homes, protecting the pounds in their pockets and creating jobs across the country.
"And in the short term, our new public information campaign will also give people the tools they need to reduce their energy use while keeping warm this winter."
