I have lived in the Los Angeles area for many years and have yet to have found a reliable and honest HVAC contractor. All of a sudden my entire system shut down and Air Products was referred by a friend. I called them and they made an appointment in a day.
John, the technician, showed up at the appointed time and was professionally dressed for the job. He accessed the unit and spent a reasonable time diagnosing the problem. The system was fixed appropriately.
He was friendly and explained everything that was done in plain language. I am very pleased with their work and would recommend them to anyone in need of a professional service that knows what they are doing.