Cost to replace radiators with forced air

[Ashley Pimsner]

Hello BP,

I am curious if anyone can guide me through the process of replacing radiators with forced air and the approximate cost in a 4 flat with 4600 square feet.

The subject was originally built in 1921 and is located on the South side of Chicago.

[John Mathewson]

That's a large job. We have not done a 4 flat before. Typically it's costing us about 6K-9K for a single family ranch with full basement or 2 story. I know that doesn't help much I may have a few contacts that can help if needed.