Brought my vehicle in for AC service (leak) in March. I was told the Schrader valves, both high and low were leaking. I was told the "O" rings had to be replaced. Service included flush and recharge as well as red dye added to Freon. By June the system was again not properly cooling. Brought the car to another well known shop in Henderson. What they found. Incorrect "O" rings were installed and the high side Schrader valve was damaged. The technician used the UV light to show me where the Freon was actually bubbling out. I do not recommend this shop for AC repairs and analysis.