I've used Emmet for years, and I'm never disappointed. They professionally installed my heat pump and an evap cooler. I buy their maintenance contract every year and they come out and service them once in the spring and once in the fall at my convenience. Their prices are great, they show up on time or call if there's a problem, they know what they're doing and they stand by their warranty. I won't go anywhere else.
Pros: expertise, timeliness, low-cost