We have an older furnace/ac unit and recently had a fall A.C. tune up completed. Chad was our technician and was a pleasure to work with. He was very professional, thorough, and provided solutions relevant to our older system. -A couple days later, we were experiencing some of our pre-tune up issues and both Kim and Chad were able to fit us in their already busy schedule to revisit and fix the problem for good. This company really stands behind their work and we will certainly be calling again when it's time to talk replacement of this old system. Thanks Polar Express!