Chris Cavanaugh, one of the principals of R&D Heating, Cooling & Electric, has a lot of experience. He's also a veteran. Chris is committed to training up new people. He doesn't just send people out to new jobs hoping they know what they're doing. I had one of their people do some work for me. He did all that he could and then Chris came in and finished the job. They stand behind their work and make sure it gets done correctly. They are not afraid to deal with warranty issues. R&D Heating, Cooling & Electric went out of their way to work with the manufacturer on replacing a warranty part for me. R&D made sure I had no out-of-pocket expenses. I highly recommend R&D Heating, Cooling & Electric. Five stars.