Our air conditioning unit stopped working late Friday night and the heat was climbing. We called on Sat. and Tim came to our home in the time frame promised. When he arrived, he checked the unit outside, the thermostat and the attic. He diagnosed the problem, installed a replacement filter and condenser capacitor (which he happened to have with him - thank goodness!) and then the air conditioning came back on. It was so wonderful to hear it! Tim reviewed the charges with me clearly and I felt very happy about the work, his professionalism, expertise and positive attitude. Highly recommend this company and would give 10 stars if I could!