ECO4 closes 31 December 2026. The Government has confirmed the supplier-obligation ECO model is ending. Here is what is actually replacing it — and what ECO5 claims are accurate.
ECO4 is the last major scheme under the Energy Company Obligation model. After December 2026, the Warm Homes Plan — a publicly funded approach — is the Government’s stated direction. There is currently no confirmed ECO5.
See the full guide: We’ve written comprehensive guides on both what replaces ECO4 and the ECO5 question specifically.