Angel called before coming as expected. He was courteous and very nice. He seemed small to be doing this work, but he was efficient and had no trouble with the patio door. Angel removed the door, worked on it, and put it back in. After adjusting it several times, he was not happy with the rollers he had put in, and removed the door and replaced them with another set. Angel made multiple adjustments, and removed the door about 3 times total.When he was finished, he cleaned up the whole area and the glass. The door slides with 1 finger, so well you have to be careful when opening it. Excellent job, and they were one of the cheaper companies monetarily also. Angel was really good, and had a good personality too.