No Call Back
I had a few estimates for a job at my home and decided to use this company because it seemed like they would do a good job and offered a fair price. When I called to set it up, I wanted to ask one question to the owner, who had done the estimate for me. I asked for him to call me back, waited a week, called back and asked for him to call me back again, and I never got a call. I was disappointed because he seemed like a good guy, but I ended up having to get more estimates and use somebody else. I'm sure he would've done a good job, but if I can't get a hold of him to set it, how can he get my business?
Later edit: Got an estimate for another well-reviewed company on Kudzu for $1200 less for exact same job.