We had them come out to re-plumb a sink and move a water line and drain. The worker who showed up was late and seemed to have a little difficulty with the job. One of the drywallers that was working ended up talking the plumber through part of the job! My wife and the drywaller noted the plumber was only on site for 2.5 hours yet to my surprise the invoice showed 4 hours for labor! At $94 an hour that's a significant bump. I could have lived with the poor job because the drywaller made sure it was done correctly but then to charge us more for time that was not accounted for is highly unethical!