This may or may not help in ypur decision:

Not knowing any better, I went with Sears 8 years ago to get my A/C installed (they sub-contract so you don't know who is really installing your A/C until they show up). Seemed okay at the time & even passed inspection. One or two years later I was called by a company I'd never done business with and told Sears hired them to evaluate all of the A/C systems the other company installed. They were now out of business & had several lawsuits pending. After checking this out with the Sears folks I allowed this other (known & reputable) company to come do their thing, assured there would be no additonal cost to me - and there wasn't. Turns out the original company took lots of shortcuts that didn't meet code (so, how'd it pass inspection?) and could have been hazardous to my family. Everythig was fixed & passed re-inspection.

While I appreciate that Sears was pro-active in getting the problems fixed (to avoid becoming a co-defendant to keep me & others like me from suing them), it should have been done correctly the first time. I was not impressed. If they're going to use a sub they had better know that sub does top of the line work and not take shortcuts.

Now, as to the 2 recommended here: I've heard good things about their work & they'll make sure it's done right.