Greetings.



My loft hatch is right at the top of the stairs, and so for safety, I intend
to open a new hatch further along the landing. I am OK with supporting,
cutting out and reinstating the joist in the loft, but need advice regarding
cutting the lath and plaster ceiling to give a reasonable clean line, and
without bringing chunks down all around. I know architrave will cover minor
rough edges, but to make it more complicated, the ceiling is covered in
artex so I want to avoid having to reinstate as much as possible.



All advice gratefully received.