im going to be changing out my door and windows on my brick home, built in 73. I got a labor fee from the a contractor, his price was $575 to change out each window opening. I have 5 openings 2 in each opening $2875 and 1 small window in the kitchen, and $275 to change out the door and frame, 3 entry doors. $825
IS THIS NORMAL PRICING FOR A CONTRACTOR. HELP THANKS