Yes, an AC unit leak can be fixed in Glendale, AZ. Although, the level of difficulty and the price of the repair will rely on:
How severe the refrigerant leak is.
The type of refrigerant your AC unit uses.
Whether the repair will require replacement parts.
AC unit leaks are generally more costly if your AC unit uses R22, since that refrigerant has been discontinued and is harder to obtain as a result.