I appreciate the service I receive from these air conditioning and heating experts. I am so glad I found them through the Diamond Certified book. We had a brief power outage on MLK day and didn't realize when the power came back on that the fan did not. The HVAC tech tried to talk my husband thriygh simple troubleshooting to avoid charging us for a home call. However, the HVAC tech realized the simple steps didn't fix the problem, he came to the house, diagnosed and made the required repair on our heater. The level of service and response is excellent, and I highly recommend Air Quality and Heating company.