Now, the house is not nearly as cold as I expected - certainly better than the Victorian house with solid, non-cavity walls I have moved from. Nevertheless, I would like to improve it. The fibreboard walls are also inconvenient as they cannot be skimmed, wallpaper has to be applied directly. My idea was to strip off the fibreboard from the walls, insert a better type of insulation and then put up plasterboard in place of the fibreboard. I have found some companies*very useful, and the administrator has done something very similar but was wondering if anyone here has done anything similar. The usual advice is to reclad the outside of the house, but I'd rather not do that as it's expensive, non-DIY and I think looks ugly (basically it removes or covers up the only features of the house that give it any interest).