Cost to add Central AC/heat

[Scott J.]

I'm sure the costs vary, but what is a ballpark amount for adding central air/heating to a 1300 sq. ft. 90 year old home?

There is currently insulation in the attic, but not in the walls.

What are some of the options available?

[Chris Calabrese]

Sizing varies based on your location. I use the following chart:

http://www.acdirect.com/systemsize.php

It also varies based on the style of builing, type of insulation and other factors, but this is a good estimate for most residential homes.

You can get good deals on systems online from Ingram's or the Furnace Outlet. Your local companies will be marking up the equipment. Goodman is probably the least expensive of the well-known brands. If this is a 1-story home and the attic is accessible, you should be able to get the system, ductwork and install for $4000-$4500.