orfbound wrote:
I have a 1922, 1350 sq ft Craftsman/Bungalow home with a breaker box that
needs updating /
replacing. All knob and tube to be removed/ replaced and all new GFR's in
all rooms approx 20. The estimate came in at $7300. Does this seem
reasonable. Said job to take approx 6-7 days. Any feedback greatly
appreciated.

No one here can tell you if $7300 is high or low. We have no knowledge
of the extent of the work. The best advice is to get 3 or more
estimates, then thouroughly check the references, BBB, etc, of the one
you want to go with. Even better is to find contractors via people you
know who have used them.