Mike did a very fine job for us. He analyzed a heating problem and then identified and corrected a previously existing mistake in the set-up of our thermostat. He also instructed us in the proper installation of a new filter and identified problems that might or might not arise in the future with our two-stage heating system. Mike was personable and professional, and communicated clearly. We were impressed by the time he took to check his work before he left and will certainly call on Mike for any heating and air-conditioning issues we have in the future
