I just moved into a new house and the air conditioning went out. I called R&R Mechanical Services and they came out promptly and did some work on the unit. It ran fine for a while, and then it conked out again. I called them, and they came right back out in a hurry. They went back over the whole system and they discovered that something had been installed incorrectly by whoever first put the unit in. They corrected that, and it has been running fine ever since. Ramone, the owner, was very competent and pleasant. He knew what he was doing, and he made the whole experience very good. I was very satisfied with them, and I would highly recommend them to everyone! They are very reliable people!