Question follow-through · 90549
Insulation: Housing
To ask the Secretary of State for Energy Security and Net Zero, whether his Department is taking steps to investigate incidents of incorrectly installed cavity wall insulation that was installed before 2021.
About this written question
A written question asks a government minister for information in writing. Parliament publishes the question and any answer.
- Answering body
- Department for Energy Security and Net Zero
- Tabled
- 12 Nov 2025
- Target answer date
- 17 Nov 2025
- Answer
- 21 Nov 2025 · 9 calendar days after tabling
Elapsed calendar days describe the record timeline, not whether Parliament considers an answer on time.
More questions by this MP on Environment and energy
- Thermal Energy Storage · 10 Mar 2026
Shared topic keywords suggest a connection; they do not establish a follow-up.
Votes on this topic
- Taxation (Energy and Vehicles) Bill Committee: New Clause 5 · 1 Jul 2026
- Taxation (Energy and Vehicles) Bill Committee: New Clause 4 · 1 Jul 2026
- Taxation (Energy and Vehicles) Bill Committee: New Clause 2 · 1 Jul 2026
These Commons divisions share a topic label. The question did not necessarily lead to a vote.
Recorded timeline
12 Nov 2025
Question tabled
To ask the Secretary of State for Energy Security and Net Zero, whether his Department is taking steps to investigate incidents of incorrectly installed cavity wall insulation that was installed before 2021.
17 Nov 2025
Target answer date
Date supplied by the official written-questions record.
21 Nov 2025
Answer published
Cavity wall insulation (CWI) is one of the most cost-effective means of improving energy efficiency in people’s homes when installed in suitable homes and supported by appropriate installation standards and guarantees. However, the Government is aware tha...
Official data retrieved 28 Sept 2026.
Later records
Possible follow-up questions
Strong links require the same MP, department and exact heading. Other same-department questions are shown as unreviewed candidates, not as confirmed follow-ups. No debate link is asserted unless a stable source relationship exists.
Thermal Energy Storage
10 Mar 2026 · To ask the Secretary of State for Energy Security and Net Zero, what assessment he has made of the potential impact of thermal energy storage within heat networks on the (a) need for grid reinforcement and (b) operation of the electricity system.