We needed a 2nd opinion & Nathan came the very next day to evaluate our home's HVAC system. He found the same issue as the 1st guy - but gave us a much better rate. Nathan was very polite and easy going. Great customer service and care! He explained everything so that we could understand. This is a great company and they have great people working for them (like Nathan). We do highly recommend them. Give them a try and you will not be disappointed!