Dwayne installed our new Trane dual speed 4HP heat pump in 2008 and we are very satisfied with the installation and his regular maintenance and warranty service. Our house has been nice and cool since. We got quotes from 3 or 4 companies and he was by far the best value by a few thousand dollars. He has also done ductwork for our various home remodeling projects and always is able to work with our schedules with the other contractors that we are having over. He does the work himself (he had one guy help with the heat pump install) and has been in the business for years. If you can't tell from all my reviews, I favor small individual businesses that always seem to care about their customers.