HVAC upgrade cost
We are looking at building a new home which is 3500 square feet. The included HVAC system has separate Gas Furnace/AC unit for the first and second floors. The first floor is approximately 2000 sq feet and the second 1500. They haven't given me the specs of the equipment but I know it is 92% and 12 SEER. I am assuming the furnaces will be 80,000 and 100000 BTU and the AC units will be 2 and 2.5 tons.
I asked for the price to upgrade to Fully modulating furnaces and dual stage compressors on the AC units. The price they gave me is $11,200.
It is very hard to know how much this stuff is worth because there is very little price transparency Does this seem reasonable or is way too high?