These guys are good. They were referred to me through APS. I've used them for four years. The staff is friendly and knowledgeable. I can always get an appointment within a couple of days of calling. In March 2010, they installed a new A/C and furnace unit. All they guys on the project were friendly. Everything went in without a hitch or hidden cost. The quote I was given was the price I paid! Thanks Shawn for being a reliable business person.