I got a bedroom, 9ft * 14 ft wide, hall,stairs,landing and under the stairs, extended kitchen walls & ceiling plastered for 2100. He also filled in 3 misc holes running floor to ceiling that the central heating installers left when they were running the pipes.
One blokes asked for 450 to fill the 3 holes above and skim one wall in the kitchen so its worth ur while asking around.
The breakdown was:
350 for the kitchen ceiling
600 for the kitchen walls as it counts as 2 rooms with the extension.
750 for the hall, stairs and landing
400 for the bedroom.
It was worth every penny!