Tell me please about how old the air conditioner is.
Is this it?
Does it come with the furnace and cooling coil inside the house?
So far the answer is, that if the system is less than 2 or 3 years old, the replacement cost of the system if all the duct work was new and came with it, is between $5,500 and $7,500
If the duct work were already in place, then subtract about $2,000 from those numbers.
Let me know about all that, and how far you are from the nearest city.
I can adjust the numbers for regional price differences, and age of the system.
We can go from there.
We are on the honor system here. Please remember to rate my service before you leave today, the company only pays me if you rate my work. It is how I earn a living, and does not increase your charges.
If you need anything else, just let me know. You can continue asking follow-up questions at no additional cost.