Most houses that have to qualify for ECO4 will need to have an Energy Effectiveness Certification (EPC) score of D or under. The rating implies your property has become measured up with regards to its efficiency to save energy and how your home uses energy, with A being by far https://freeinsulationscotland.news.blog/2025/08/22/energy-grants-uk-free-eco-grants-for-sustainable-living/