The ceiling part of my cornice has fallen away above my bay window - it has taken a small area of ceiling with it. It's Lath and Plaster and I've been quoted quite a large amount from a couple of plaster firms to fix. It requires about 3.5m of Victorian cornice run in 5 mitre's due to the 3 windows in the bay. One company did say they will remove the inserts (which are ok) and re-fit. What's the going rate for this specialized work?