Households could slash energy bills by £8 billion a year with better insulation and efficiency upgrades, according to climate charity Carbon Copy.
The figure, based on Energy Saving Trust data, is part of the charity’s 25 Big Local Actions in 2025 campaign, which highlights practical climate and energy solutions.
The campaign’s first theme, is insulation and it urges local action to tackle the UK’s inefficient housing stock. Carbon Copy points to Warmer Homes Scotland as a model for success, helping 35,000 households cut bills and stay warm.
“Warmer Homes Scotland is a brilliant example of local action that’s really big,” said Carbon Copy co-founder Ric Casale. “A genuine mass insulation scheme could save £8 billion a year nationally through better insulated housing.”
Beyond cost savings, poor insulation has serious health impacts. Casale added: “Cold, damp houses are unhealthy houses. Increasing the energy efficiency of the UK’s properties to EPC C would prevent around 650,000 new cases of childhood asthma by 2030.”
Andrea Howe from Cosy Homes in Lancashire highlighted another issue: “We were seeing that a lot of installers that had access to funding were leaving out the most vulnerable residents.” She stressed the need for local authorities to step in and ensure support reaches those who need it most.