Comfort Systems USA, Inc. (NYSE:FIX) is one of the sstocks Jim Cramer was recently asked about. A caller sought Cramer’s opinion on the stock, and he replied: I have to tell you, I liked that stock when it was like… I don’t know, like 20 bucks, and I should’ve just said over and over again, keep buying it. Very much like Mueller’s. Just like one of these stocks, I think you put some on, and then if it comes back down, for heaven’s sakes, you buy more. It’s a great company. Stock market data showing an ...