I had an estimate of over $700, for work on my A/C unit. I called Erick at Air Support for a second opinion. He had been recommended by a mutual friend. He took one look at it, shook his head at the $700 and said, "no way." He fixed what was wrong, did a partial coolant recharge, and cleaned the condensation drain, which was MUCH more than the first company was going to do. Final cost, UNDER $130! I'm keeping Air Support on speed dial! Thanks, Erick! Five HUNDRED stars!