If your air conditioning system was installed before 2010, there's a good chance it uses R22 refrigerant — also known as Freon. And if it does, you have a ticking financial time bomb in your backyard.
What Happened to R22?
R22 (chlorodifluoromethane) was the standard refrigerant in residential air conditioning for decades. In 2010, the EPA began phasing it out due to its ozone-depleting properties. As of January 1, 2020, it is illegal to manufacture or import R22 in the United States.
That doesn't mean it's illegal to USE R22. Your existing system can keep running. But here's the problem: when it needs a recharge or repair, the only R22 available is recycled or reclaimed — and the price has skyrocketed.
What This Costs You
Before the phaseout, an R22 recharge cost $100-$200. Today:
- A single R22 recharge can cost $500-$1,500 depending on the amount needed and your location
- If your system has a leak, you're looking at $1,000-$3,000 for the repair PLUS the recharge
- When the system eventually fails, you're replacing the entire outdoor unit AND indoor coil — $8,000-$15,000 for a full system replacement
Compare that to modern R410A systems where a recharge costs $200-$400.
How HomeFax Flags This
When we parse inspection reports, R22 refrigerant shows up as an equipment flag. Our reports identify:
- The refrigerant type (R22 vs R410A vs other)
- The year the condenser was manufactured — systems from before 2010 almost certainly use R22
- The SEER rating — older R22 systems typically have SEER ratings of 10-13, while modern systems are 14-20+
- Overall equipment condition — an aging R22 system approaching end-of-life is a major negotiation point
What Should You Do?
If you're buying a home:
- Check the HVAC section of the inspection report for refrigerant type
- If it's R22, factor $8,000-$15,000 into your negotiation for eventual replacement
- Ask when the system was last serviced and if there's been any recent refrigerant loss
- Don't panic — your system works fine until it needs refrigerant
- Start budgeting for replacement now
- When it's time, upgrade to a high-efficiency R410A (or newer R454B) system — you'll save on energy costs too
- Expect it to come up in the inspection
- Consider proactively replacing the system before listing — it removes a major objection and can increase your sale price
The Bigger Picture
R22 is just one example of why inspection data matters. A listing photo shows you a beautiful kitchen. An inspection report tells you the AC in the backyard is running on a refrigerant that's going to cost you $5,000 the next time it breaks.
That's the difference between what Zillow shows you and what HomeFax shows you.
Search any address at HomeFax to see if we have equipment data on file — including refrigerant type, system age, and SEER rating.