A Labour proposal to dramatically improve energy efficiency in almost every British home would cost an estimated £60 billion.
The upgrades would be free to low-income households over the next decade, while wealthier households would receive interest-free loans.
Loft insulation, enhanced double glazing and new heating systems would form the bulk of the improvements under the party’s Warm Homes for All scheme.
Some 450,000 jobs would be created to handle the installation of energy-saving measures and renewable and low-carbon technologies, the party says.
Shadow business secretary Rebecca Long Bailey says: “Labour will offer every household in the UK the chance to bring the future into their homes - upgrading the fabric of their homes with insulation and cutting edge heating systems - tackling both climate change and extortionate bills."
Labour also says that if it’s elected into government on December 12 all new-build homes will be zero-carbon within three years.
The party says this will save owners and tenants in the properties an average £200 a year in energy costs.
The zero-carbon status will be achieved through better energy efficiency standards and low carbon and renewable energy sources “and could mean all new homes are fitted with solar panels, super-efficient insulation and triple-glazed windows, and are not fitted with fossil fuel heating systems such as gas boilers as standard” says the party.
It claims that an original zero carbon homes standard, set out by the last Labour government, was due to come into force in 2016 but was scrapped by the Conservatives in 2015.
“This means around a third of a million families are living in lower-spec new homes that would have been greener and cheaper to run, which could have cost some up to £600” it says.
“The Conservatives’ decision to cave in to property developers and slash green standards means we are building homes today that aren’t fit for the future – they’re bad for the environment and expensive to run” according to John Healey, Labour’s shadow housing secretary.
“After nearly 10 years of the Conservatives outsourcing housing policy to commercial house builders, we need a Labour government that will set common-sense rules which save households money and cut emissions.”
And party leader Jeremy Corbyn adds: “Homes should be safe and warm for families and not damage the environment for future generations. But our housing currently contributes a massive 14 per cent of the UK’s greenhouse gas emissions.
“We will tackle the housing and climate crises at the same time by building warm and energy efficient homes. At this election, the choice is clear – this is our last chance to take action to protect future generations or allow the Tories to accelerate our planet’s destruction.”