We are in the midst of an extremely complicated overhaul of our existing radiant heating system. The company who originally installed it and recently serviced it overlooked some alarmingly dangerous safety issues. Will Hanson identified the problems and offerred solutions at very reasonable rates. He and Kim have been continuously available either by email or cell phone to answer questions and troubleshoot until he is able to be on site, which has always been the same day I've called. Though we are not yet finished with the overhaul, I have complete confidence in his ability and knowledge to make our system function at the optimal safe level. I would wholeheartedly recommend JW Hanson for your HVAC needs and will update again once our project is complete.