Question to the Department for Business, Energy and Industrial Strategy:

To ask the Secretary of State for Business, Energy and Industrial Strategy, what estimate his Department has made of the time required to train an installer of (a) insulation for solid walls and (b) domestic heat pumps.

We understand that an increased number of skilled tradespeople will be required to retrofit homes with energy efficiency and low carbon measures as a result of the Green Homes Grant scheme. Presently, an existing builder could take on skilled people and become certified to install solid wall insulation within 14 days, provided they meet the requirements.