ECO4 is a significant UK government program aimed at improving energy efficiency in homes and combating climate change. It applies to all households in the UK, including tenants, landlords, and homeowners. The scheme requires energy companies to fund retrofit projects, with flexibility in choosing projects and determining funding levels. Funding can cover various energy-efficient measures like insulation and renewable energy systems. Priority is given to low-income and vulnerable households, ensuring they receive adequate funding. ECO4 aims to eliminate energy inefficiency and contribute to a sustainable future. To apply for ECO4 funding, contact your energy supplier for eligibility and application details.