Hi everyone. A few weeks ago, our neighbour brought round a party wall agreement for us to sign as they are wanting to put in a loft conversion. They sent over outline plans but nothing else. We spoke to RICS who told us we needed to see a structural survey on the party wall. So far our neighbours keep referring us to their builders who refuse to provide this saying it is unnecessary and the wall is sound. No structural survey has taken place. They just say that if there is any detrimantal problems on our side, they will put it right..... but is this enough??? Help!