I think it also has to do with a particular areas permitting.
If Mechanical ducts are inspected by the Mech inspector it is the responsibility of the Mech contractor.
I gave up cutting cabinetry years ago, the risk of damaging a high dollar piece of mill work is just to great. We work with this contractor by supplying templates or what have you, but they do the cutting.
On the other hand, I agree with Iwire on working on a retrofit and I wouldn't let a piece of dead wood (say for a ceiling fan for example), stop progress waiting for a carpenter on a new project.
Roger
[This message has been edited by Roger (edited 12-05-2005).]
