My furnace started dying in mid January, and with the AC dead for about five years I decided to replace them both. I went to five different suppliers - all selected based on the HomeStars reviews - to find the best price, a solid warranty and, what is even more important for me, the best attitude. Convertible Air not only had the lowest price for products I was looking for (60K BTU, 96% efficiency, 2-stage furnace + 2T AC with SEER rating of 13 or higher), but Chris also answered all my questions and really worked with me on the offering, including a short evaluation visit, to make sure there would be no surprising extras later. We had to reschedule the job once, but when the crew showed up (on time) the installation went really quickly and smoothly - three and a half hours after they arrived the technicians were done. They set up the new thermostat and tested the furnace, explained the warranty registration procedure to me, packed up and were gone, leaving the work area spotless.
Highly recommended.
Paul J
AC unit could not be tested - it was too cold outside for the compressor to work properly - but the furnace works great: quietly and efficiently.