Labour is pledging to cut UK carbon emissions by 10% through the largest home improvement programme for decades.
A Labour government would fund £60bn of energy-saving upgrades to low-income households over the next decade while wealthier households would receive interest-free loans for enhancements.
The party said loft insulation, enhanced double glazing and new heating systems would help cut energy use.
The Conservatives said the plan would “wreck the economy” and “put up bills”.
A spokesperson for the Tories said while tackling climate change was vital, “independent experts and even Labour’s own unions say their promises don’t stack up”.
Labour says its policy, called “Warm Homes for All”, would create 450,000 jobs involved in the installation of energy-saving measures and renewable and low-carbon technologies, the party said.
It said almost all of