After the last storm, a very small wet patch in the corner of my bathroom ceiling suddenly expanded. So far water isn't dripping, so I suspect it's only a small leak, and that either the flashings have gone, or there is some cracked render in the firewall (there's no accessible loft space above as the bathroom is in the extension at the back - it's a typical Victorian terraced house). The tiles themselves look perfectly normal, and the stain is only in the corner and along the wall (so far).
I've been trying to persuade a roofer to come and look at it for more than a week, but they either don't turn up, don't pick up the phone, or say they are busy for the next several months.
I have to believe that I will eventually find a roofer who will turn up and do the work, but in the meantime I'm stressing out about the amount of damage that might be caused if it isn't addressed quickly. Does anyone have any idea how long you can leave something like this before there is serious cosmetic and / or structural damage?
Also, I'm wondering whether a general builder might be able to fix the problem rather than a specialist roofer, and might be more available.
Any views / advice / reassurance welcome!