Double Glazing News and Policy Updates
Grants, building regulations and energy standards move quickly, and they change what double glazing costs and who can get help with it. We track the updates that matter to UK homeowners and landlords, with every figure checked against GOV.UK and the major cost guides.
The biggest shift in 2026 was the government's Warm Homes Plan, which extended ECO4 to the end of the year, confirmed there will be no replacement, and set out the route to tougher energy standards for rented homes. For the current state of every funding route, see our double glazing grants guide.
The Warm Homes Plan 2026 explained
The government's roughly £15bn home-energy programme reshapes window grants. Here is what actually changes.
ECO4 extended to December 2026
ECO4 gets a nine-month extension to 31 December 2026, but there will be no successor scheme after it.
Landlords must hit EPC C by 2030
England and Wales rentals need EPC C by October 2030, with a £10,000 cost cap. Where double glazing fits.
EPCs are changing: the Home Energy Model
A new fabric-first EPC system becomes compulsory from October 2029, and it puts windows front and centre.
NI Affordable Warmth Scheme has closed
Northern Ireland's main energy grant closed to new applications at the end of March 2026.
Why we track this
A window quote is a decision you make against the rules of the day: the grant you might claim, the U-value your replacement has to meet, and the EPC band your home needs to reach. When those rules move, the right answer moves with them. Each update here links back to the relevant calculator or guide so you can act on it, not just read it.