I think I got 10 quotes for central air 5 years ago — not kidding — and we kept hearing $30k for our 2-story colonial. We ended up going with XXXXXX because the salesman figured out that we could drop the a/c ducts down from the second floor and not have to install double the system. At the time, it was $13k, and they did a great job. I recently had a horrible experience with XXXXXX, though, and would never work with them again. If I needed anything at this point, I would call Ocean State Air Solutions. The owner, Craig, came to my house to give me a quote on a whole-house air-purifier (that XXXXXX wanted triple for), and he was incredibly practical, transparent, and fair.