Double glazing currently attracts the standard 20 per cent VAT rate, unlike some other energy-saving materials such as heat pumps. Supporters of a tax reduction argue that better windows should be included in efforts to improve home efficiency and support the UK’s manufacturing sector.
Industry Groups Argue Windows Should Be Included in Energy-Saving Measures
The Glass and Glazing Federation (GGF) has urged the Government to extend VAT relief to double glazing, arguing that windows and doors play a major role in keeping homes energy efficient. According to the GGF’s head of Government Advocacy, Chris Beedel, low-carbon heating systems can lose effectiveness when buildings have inefficient windows, doors and walls.
“We feel kind of overlooked. We want homeowners to benefit from a VAT reduction that would be passed back to them,” Beedel said.
He argued that installing insulation alongside new windows and doors would create a more complete approach to improving household efficiency. A VAT reduction, he said, could encourage more homeowners to consider glazing upgrades at the same time as other improvements, including low-energy heating systems such as heat pumps.
The organisation has also raised concerns about the pressure facing the UK glass industry. Manufacturers are dealing with rising energy costs and increased competition from imported glass from countries including Turkey, China and India. Beedel said the sector had reached a point where support could help protect domestic manufacturing and the skills linked to glass production.

Business leaders have warned that manufacturers are facing decisions about whether to rebuild ageing furnaces in the UK or move investment elsewhere. Beedel said VAT relief would show that the Government values the industry and wants to help it develop.
Supporters Say a VAT Change Could Benefit Homeowners and Tradespeople
The Federation of Master Builders (FMB) has also backed the proposal, saying a VAT reduction on repair and maintenance work could help stimulate demand and support tradespeople. According to Jeremy Gray, head of External Affairs at the FMB, extending VAT relief to glazing would reduce installation costs for homeowners while creating more opportunities for businesses.
“It’s a win, win all round with more work for those in the industry, less costly installations and reduced energy bills for homeowners,” Gray said.
Supporters of the change have pointed out that some energy-related installations, including solar panels, already receive VAT benefits. They argue that extending similar treatment to glazing would place windows alongside other home improvements aimed at improving efficiency.
The Government has previously argued that double glazing does not qualify because its primary purpose is not considered to be reducing energy consumption. A Government spokesperson said most goods and services remain subject to the standard VAT rate, while selected energy-saving technologies receive reductions and grants.
The debate comes as the UK continues efforts to improve energy efficiency in homes. According to the GGF, at least 80 million windows across the country could require replacement with more modern glazing products.
Campaigners argue that supporting the glazing sector could help homeowners lower energy use while maintaining domestic manufacturing capacity. They are calling for double glazing to be recognised as part of wider energy efficiency measures rather than treated separately from other home upgrades.








