It's not just that they are trying to profit from the situation. this quoted figure is the "we just don't want to do this work... but if you let us gouge you six different ways through next Tuesday, we'll do it" -rate.
I was quoted $7,000 by the the developer of my parents summer home out on Long Island years ago. This was the second or 3rd summer we lived in the house, so it was complete. but the developer was still around making adjustments and fixing warranty items so I figured why not go to him. My mistake.