Question: how much does it cost to recharge a central air unit?
Answer: Residential Air Conditioner Freon Refill Cost Most people pay between $100 and $350 for a refill, depending on the size and type of your HVAC unit. Older large r22 units can reach $600 or more. A 25lb jug of r410a runs $75 to $175. Labor adds an average $70 per hour.