The UK Government’s Warm Home Plan has been unveiled as the largest-ever intervention in home energy efficiency and clean heat. A total of USD 20.4 (£15) billion has been allocated to upgrade 5 million homes over the next four years, by 2030. The scheme aims to permanently reduce energy bills, tackle fuel poverty, and lower reliance on fossil fuels. It places local authorities at the heart of delivery and offers a financial package for every household, regardless of income, alongside the development of a new national delivery agency to coordinate efforts.
Funding mechanisms are currently being restructured. For low-income households, the Warm Homes: Social Housing Fund and the Warm Homes: Local Grant have been consolidated into a single grant scheme, with total funding for 2026/27 reaching USD 1,025.44 (£754) million. Post-2027/28 funding deployment and the implications for devolved administrations are expected to be clarified in March 2026.
The Boiler Upgrade Scheme will operate until 2029/30, with USD 3.672 (£2.7) billion allocated. This includes up to USD 40.8 (£30) million for a “Heat Pump Ready” grant in 2026/27.
The delivery of the Warm Homes Fund through USD 6.8 (£5) billion in financial transactions marks a shift towards repayable finance, aiming to recycle investment over time. Complementary funding streams include DESNZ underspends aimed at the closure of the Energy Company Obligation (ECO). Additional measures include delivery transformation initiatives—such as the establishment of a Warm Homes Agency—consumer advice services, Minimum Energy Efficiency Standards (MEES) delivery, heat network zoning, and rooftop solar initiatives.
The plan sets ambitious targets for technology deployment, aiming to triple rooftop solar installations by adding panels to 3 million additional homes, and to scale annual heat pump installations to over 450,000 by 2030. Support will be extended to both low- and middle-income households, as well as social housing, through the Warm Homes Fund. Cost reductions will be pursued through aggregated procurement via entities such as Great British Energy and the Crown Commercial Service.
Significant progress has already been made in insulation: around 71% of British homes now have cavity wall insulation, while a further 10% have solid wall insulation. However, opportunities remain for further improvements, particularly in fuel-poor households.
