After being extremely frustrated with a bigger company, we called Firefly in a bit of a panic. It was -30 outside, the furnace cut out and the house was already down to 11 degrees. They rearranged everything to come right away and showed up exactly on time. The technician was thorough and took the time to explain everything in laymen’s terms. He diagnosed the problem, which the other company couldn’t, charged us cost for the parts and was an all around honest guy. We highly recommend this company!