Forced hot air main trunk replacement

Had a reputable *** metal company come to my house to give me an estimate for replacing the main FHA trunk to a smaller height to gain some headroom in my basement. The trunk is about 40 feet long from the furnace to the end. The replacement height is 8" for the rectangular ductwork. The estimate was about $2500.00 I have no idea if this is a decent price or not. What do you think? I was a bit surprised although I really don't know about *** metal work, so this could be good. Thanks.


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