Mr. Lentz was scheduled to inspect my non-working forced air heater. He showed up on time, assessed the problem, explained why I needed a new heater and gave me the recommendation with options. I went with his recommendation and he made it worth my while. He obtained a permit from the city and arranged for the asbestos abatement. I didn't like the cost for the abatement, but it had to be done. He took out the old heater. Mr. Lentz installed the new unit and thermostat and I'm very happy it's done. The efficiency of the new unit will help pay for it. I know who I'll call if I need to change the AC. Very clean, conscientious and thorough. Mr. Lentz is also very knowledgeable. I recommend him. I am happy.