It is not clear the future retrofit market will be big enough to sustain businesses to meet the level of remediation required. Since we took evidence in November 2025, the government announced that it would end ECO, with no levies on bills from April 2026. It said it would continue investing to tackle fuel poverty through its Warm Homes Plan but did not provide any further detail.53 In written evidence provided to us after our oral session, the Department clarified that it was yet to formally...

It is not clear the future retrofit market will be big enough to sustain businesses to meet the level of remediation required. Since we took evidence in November 2025, the government announced that it would end ECO, with no levies on bills from April 2026. It said it would continue investing to tackle fuel poverty through its Warm Homes Plan but did not provide any further detail.53 In written evidence provided to us after our oral session, the Department clarified that it was yet to formally confirm 49 Qq 64, 66, 67, 147 50 Letter from the Department of Energy Security & Net Zero, dated 2 December 2025 51 C&AG’s Report, para 2.19; Energy Sec Type: conclusion | Number: 26 | Response status: response_pending