Sparrowhawk

Hi everyone, 5+ year reader and finally taken the plunge to join. It's almost 3 years since we bought our house, a 1920's detached house extended twice (late 1990s/early 2000s, the latter extension considerably better quality than the first). I wanted to build a Passivhaus but the impossibility of finding a plot at a sensible price prevented that. We soon discovered this house was cold and draughty and we could see daylight in the eaves storage. Since then I've sealed all the obvious drafts, used a thermal camera to try and find others, had the 3 worst windows replaced with triple glazing (an expensive mistake: I thought it would fix these rooms as the windows weren't airtight but it didn't), but it's still a cold house. Living here during the cold spell that's just ending drove me to join this forum as I'm not sure what to do next. We need a new heating system (25yr old boiler, radiators of same age) which I'm expecting will make the house warmer but won't reduce our gas usage unless I can reduce heat loss. Looking forward to getting stuck in!

Same here. Prime candidate for cavity fill but they rewired by dropping everything via cavities, including an 80A cable to the 2nd fuseboard/electric cooker in the extension on the other side of the house. I have an email from a technical manager at an insulation company saying it's not a problem because the cables inside a wall don't move once it's filled with insulation, so if the sheath becomes brittle it doesn't matter... That's one I've joined this forum to discuss in more detail - once I land on the correct section to post on.