The first time we used American Comfort Heating & Cooling, they put in a new unit. Then they came back and installed a new coil in an existing unit. This time we had them out for general maintenance. They got here when promised. The tech was friendly and did the job efficiently. We asked him to wear a mask because we have a newborn in the house, and he did. Just great service all around. I absolutely recommend American Comfort Heating & Cooling.