A contract has been signed for a huge revamp of two estates in south London.
A grant will help fund insulation in a new village hall in Oxfordshire.
The government has been urged to clarify new rules on making older rented properties in the countryside energy efficient.
A scheme to help keep Lancashire homes warm and well insulated has improved nearly 3,000 properties.
A new report has warned that concerted action is needed to insulate enough homes in Britain.