We recently purchased a 1840's Victorian terrace, and are having all walls and ceilings replastered.
The plasterers haven't finished the whole job yet, but the first walls they did have hairline cracks already. These walls are a mixture of original lathe and plaster and original plaster on brick walls. The walls they replaced with plasterboard and then skimmed are OK.
They tell me that this is due to the original plaster not being sound, and the only way to fix this is to remove the lathe and plaster/original plaster and either re-bond/skim or redo with plasterboard.
Is this right/normal? Should I ask them to replaster?