I've had Fred out to maintain and service our 2 a/c units. He is very friendly and does a great job. He is happy to point out where service and needed and why. I've had other companies out that don't get the repairs made. Collins charges fair prices gets the job done in a courteous manner. They go above and beyond as far as I'm concerned.
They also put in a split a/c unit in a large office. The work was done promptly and the room was cleaner when they left. I've had no issues with it at all.