Canoga Park Heating & Air Conditioning added freon to the air conditioner and they installed a safety switch. The technician was very polite, well groomed, and answered all my questions. This was my first time working with them, but I would call them again. I'd say the pricing is very reasonable. I compared them to another vendor and Canoga Park was a lot more reasonable. They've got an ad in the daily news every day and its a very inviting.