Handymenders Inc.

These guys were great.  Jake, whom I believe is one of the owners, came with an assistant.  They were both extremely polite.  They didn't even balk when I asked them to take off their shoes because I had just had my floors cleaned, even though the job would require them to go in and out, bringing the air conditioners inside.  One of my units is so monstrous that I have never been able to get friends to install it no matter how much beer and pizza I offered.  Not only did they install it, but Jake seemed to feel that it was not in perfectly and even though I assured him it was fine, he insisted on pulling it out and reinstalling it.  
After reconnecting the lighting on the deck that gets stored away each winter, he actually was nice enough to point out that it was really fairly simple and asked me if I would like to see how to do it.  I'd still rather have them do it again next year, but I thought that was pretty generous.  
I would recommend Handymenders.  As a single woman with a nice home, it's great to have those things that bug you just go away in one day.  I will save them up now for next spring.