Have long suspected neighbours are hoarders. They don’t go out, windows/curtains are never opened. They’re a bit strange but very pleasant people. But today they had a leak so asked DH to go round to have a look. He was horrified by what he found in there. It was the level of hoarding they make tv shows about and it was so dirty and mouldy, he could hardly stay long enough to look at the problem. He showed me a picture and I am genuinely concerned it’s a major fire hazard and we are attached. I also know they don’t do things like get boiler services etc because they understandably don’t want people in there. Now that we know for sure, I am more worried than ever and not sure if there is something I can do or should do. Any advice? They’ve never had any visitors but I occasionally hear the phone rings so I hope that means there’s someone out there caring about them.