Hi, firstly apologies if this is in the wrong folder but I wasn't too sure what category ceilings come under. Basically me and my family have recently moved into a 1930s property that needs a fair amount of modernisation. In the bathroom and kitchen the ceilings were covered with polystyrene squares that I've removed due to the fire risk. Underneath I'm not sure whether we have some sort of asbestos boards or whether they are just plaster or something else. I've attached some pics below, one of the ceiling and one close up of a bit that I've broken off (which was very hard). What do you think? Should I get someone round to check it out or am I worrying over nothing? Thanks.