We are having a single storey extension and need to know sizes of beams to be used on the existing back wall, which will be knocked out. We have been told different things by different people and want to get one last opinion.
We are also looking to knock out a exisiting arch and have been told by some that it is a supporting arch and by others that it is not. We also want to get a last opinion on this before knocking it out. Structural engineers are charging so much money just to do a home visit.
Is there anyone else we can contact to help us with this?