while I agree that for the sake of £325, it may as wel be rectified, I donlt see hpw they can onsist, if it is classed as AR. Or am I missing something?
OP, if you are looking at seloing, then the wedge of notes could be a good investment. You will probaby have issubours have the same [es when selling the house, and , if you don't, subject to the pre sale enquiries and your responses, you could set yourself up for issues afterwards.
It matters not that a lot of neighbours have the same problem. If a builder can be identified as having carried out works, causing a "safe" installation to contravene, then he is likely to be liable.