I can’t say enough about Diamond Quality Services. This last visit was probably the fourth time we have had them come out and I don’t believe I’ve ever written a review on them or any other company for that matter. Each time they come out they do a thorough, careful, and exceptional job. And their charges always seem beyond reasonable. During their last visit, our technician, Julian, worked tirelessly to remove two unit parts that were stuck together so that he would not have to obtain and charge us for a new part. I heard him confer with his manager, attempting to move things around to make sure he could get back to finish the job and about how best to complete the job. I really cannot day enough about the great technicians we’ve had come out, their work ethic, and the company, in general. We will not be using another company for HVAC purposes! Thanks so much!