Well it is a terraced house and the wall is quite deep connecting to the neighbours. I am not sure what the wall is made of. It looks quite crumbly though.
Hey guys,
A contractor has accidentally drilled a deep hole of roughly 15 - 17 inches deep into my bedroom wall. The hole is around 1/4 of an inch wide. Can you provide any advice on the best way to fill this and whether there could be any potential problems which may arise in the future...