I don't know about nebraska, but in michigan concrete goes for roughly 3 dollars a sq.ft. Excavation is extra. We only put expansion joints where the driveway meets the garage. The rest is saw cut 1 1/2 inches deep. All concrete will crack The secret is to allow it to crack in a controlled area. You actually want it to crack in the saw cut so it doesn't crack on the surface.
I wouldn't guess excavation to be more than 1500 including preping the new area.
and concrete finished for 2750. For a total of 4250 so the guy is in the ballpark. get so more quotes and let us know.
