The cost of replacing refrigerant in an air conditioning (AC) unit can vary depending on several factors, including the type of refrigerant used, the amount of refrigerant needed, the location of the AC unit, and the service charges of the HVAC (Heating, Ventilation, and Air Conditioning) technician.
Before 2020, the most common refrigerant used in AC units was R-22 (also known as Freon). However, due to environmental concerns related to its ozone-depleting properties, its production was phased out, and it became increasingly expensive and difficult to obtain. Many AC units manufactured after 2010 already use R-410A, a more environmentally friendly refrigerant.
Here are some general cost ranges for refrigerant replacement:
R-22 (Freon): Since R-22 is being phased out and is less available, the cost per pound can be quite high. It can range from $50 to $150 or even more per pound. Larger AC units might require several pounds of refrigerant, making the overall cost even higher.
R-410A: The cost per pound for R-410A is generally lower compared to R-22, ranging from $20 to $70 per pound. Since most modern AC units use R-410A, it is generally more affordable and readily available.
Keep in mind that the cost of refrigerant itself is only one part of the total cost. HVAC technicians typically charge for their service, labor, and any additional parts or equipment needed. So, the total cost to replace refrigerant in an AC unit could be several hundred dollars or more.
It's essential to have a qualified HVAC technician inspect your AC unit to determine the type and amount of refrigerant needed and provide an accurate estimate for the replacement cost. Additionally, some older AC units might have leaks, which would need to be fixed before adding new refrigerant. Regular maintenance and addressing leaks promptly can help reduce the need for frequent refrigerant replacement and lower long-term costs.