It is about time the UK government got to grips with retrofitting existing housing to scale up home energy efficiency across the country. One way to do this would be to establish a one-stop shop on every high street; offering trusted advice, recommendations for trained suppliers, and help with grants and other incentives. Our struggling town centres could do with the community buzz of a genuinely useful venue and there are plenty of empty commercial properties to choose from. It could provide employment, generate training locally, encourage re-skilling of workforces, and help us reach our climate goals. Plus our houses might actually get warmer.