We had an AC that had been leaking refrigerant for an unknown amount of time. What triggered our finding out about it was that it would no longer cool the house. Instead of repairing the unit that had leaked, we had already made up our mind to replace it completely. It was a Goodman - very cheap and very inefficient. So, we called One Time AC and Heating (as well as several other AC companies around the valley). Of all of the companies we called, One Time AC had the lowest price for the unit we wanted. The staff that came to install it were extremely friendly and knowledgeable. We have another Goodman, and when we are ready to replace it, we'll be calling on them again.