Refilling coolant in your air conditioner begins with a professional inspection, leak detection, and diagnosis by one of our certified technicians to see if it needs a recharge or if there is another issue at play. If recharging is needed, the technician will first repair the leak before refilling the coolant. The next step is attaching refrigerant gauges to the AC service ports and connecting a vacuum pump to these guages. This allows the technician to completely remove any air and moisture in the system to ensure there are no more leaks.