I've been using the service of Mountain Heating & Cooling in my business and outside for about five years now. I've been happy enough with their service that I've recommended them to other people. They do very good work and when they make any mistakes they are very responsive about making it right. Most recently they came out to clean the air conditioning in the bakery. They did a good job and everything is working well. I've not really looked into the pricing aspect, but I assume it's competitive. The technicians are mostly professional, competent and communicative. There was one issue that was less than great, but mostly my experience with them has been very good. I will continue to use them.