In the middle of the job? No question; the sub shouldn't.
Long time after the job? No question; the GC has no role anymore.
In the middle period (move in to 2 years?)...
this is the potential time frame for a phone call.

The GC may be getting squeezed by a new contractor for that bonus room finish or an add on but if this were so then why didn't you get a call from that GC to do the wiring related?

This street has to run both ways.


Design-Build isn't supposed to mean design *as* you build.