You may be right. Maybe they considered it too small a job? They didn't provide a time estimate but acted as though it would be, at least, a few hours labor plus the cost of the glass. We all know quotes tend to end up on the high side of the quote, or higher, so I'm not going to deal with those guys. $800 is ridiculous as two of the windows are very small Opera windows and it's all flat glass.
I'll update my progress as I move forward and figure this out. This is all new ground for me.
Thanks to everyone that has been trying to help!
John