My parents used them to replace a single stage 4 ton system and were so impressed by their professionalism, quality workmanship and cleanliness that when it came time to replace both my systems I gave them a call. Even though I’m in central Houston they came the same day and Steven and Allen walked me through options and we decided to reconfigure some return air ducting to improve airflow. Went with two Trane systems, a 4 ton and a 5 ton. Big job but they were done in less than 2 days including all the ductwork and cleanup. Craig himself came out and did the final walk through and balancing of the system. AC systems are not cheap and poor installation and design can mean a huge waste of money. These guys do it right.