Written Question·Department for Energy Security and Net Zero·UIN 120759

Insulation: Housing

Tabled: 16 March 2026
Answered: 19 March 2026
Named Day

Question

Mr Gregory Campbell

Democratic Unionist PartyEast Londonderry

To ask the Secretary of State for Energy Security and Net Zero, how many homes have had insulation measures carried out under the ECO4 and GBIS schemes since 2022.

Answer

Martin McCluskey
ECO4 started in April 2022. To the end of December 2025, 294,456 insulation measures were installed under ECO4 (including ECO3 Interim and Surplus Actions). This is published in Table 1.6 of Household Energy Efficiency Statistics, headline release: Februa...

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