There are many companies out there who will overcharge you, and do inadequate or unneeded services, just because most people are ignorant of how A/C systems work. A+B is NOT one of them. We worked with Brett and his crew, who responded promptly to all questions and needs. They went far above and beyond to fix our problem, which two other companies were unable to even find. They did not overcharge for diagnostics or service, and were informative about what was being done and why. They did not jerk us around, they worked hard to solve the problem, at a very fair price. HIGHLY recommended.