Its purpose is to scale back energy usage, reduce the costs borne by tenants and enable landlords to adjust to the regulation on energy efficiency. Landlords who have an interest in benefiting in the available aid by way of ECO4 can do so by being familiar with the eligibility conditions https://energygrantsuk.wordpress.com/2025/09/15/unlock-free-grants-for-insulation-and-energy-efficiency-improvements-in-the-uk/