Hi,

I am going to move into a 2 story home which has a single temperature controlled thermostat. I want to make it a dual Zoned one by adding one on the second floor in addition to the one downstairs.

How much would it approximately cost to do this and how tough is this job?

Thanks,
SB

Get three or four bids from the locals in your area, then you will have a good idea. We can't say with out knowing the layout of the duct system and the area you live in. Each job is different.