Air conditioning systems are sealed from the factory, so loosing freon is a sign of a leak. The question is, small or large leak? With a small leak, a system can be charged and keep working for most of the summer season. A large leak won't hold. Since freon is odorless and colorless, there's no way to see a leak without the aid of special tools. Also, while the system is empty, a vacuum test can be performed. If the system holds a vacuum for at least 10 minutes, then it's probably a small leak and will hold a charge.
We are happy to say that Mobile Service Pros has the tools to perform vacuum tests and system recharges on most cars and light trucks! As always, we come to you! If your A/C won't blow cold, give us a call!