I called A STAR Air Conditioning because I had a leak I thought was coming from my AC, but it was actually coming from the neighbor's condominium. The service technician checked out my AC and everything was fine. He found where the water was coming from. He put a hand on the ceiling, and a large piece of the ceiling came down. A STAR Air Conditioning is ordering some filters for me, and they will call when those come in. They could have charged me for unnecessary repair or replacement; instead, I was charged only the service fee. I can trust A STAR Air Conditioning.