If your outdoor unit is running non-stop but the house still feels warm, and your energy bill jumped without an obvious reason, a refrigerant leak is one of the most likely causes in Palm Beach and Treasure Coast homes right now. This guide breaks down how refrigerant leak repair actually works, what a technician should check first, and which fixes hold up in South Florida heat versus which ones just delay the real problem.
- Refrigerant leak repair means finding the exact leak point and sealing or replacing that section, not just adding refrigerant.
- Homes built before 2010 often still run R-22, a refrigerant that stopped being produced in the U.S. in 2020 and now costs far more to source.
- Coastal salt air corrodes evaporator and condenser coils faster than inland homes, making pinhole leaks common on the barrier island and along the Intracoastal.
- Topping off refrigerant without locating the leak is a temporary patch, not a repair. Skip it in 2026 if you want the fix to last.
- Replacing a badly corroded coil or an aging R-22 system often costs less over three years than repeated top-offs.
Why this matters
A refrigerant leak doesn't just mean a warmer house. It means your compressor is running on low charge, working harder to move heat it doesn't have the pressure to move efficiently. Left alone through a South Florida summer, that strain shortens compressor life and turns a repair into a full system replacement.
The other issue is refrigerant itself. R-22 hasn't been produced or imported into the U.S. since 2020, so a pound of it now costs far more than it did a decade ago. If your system still uses R-22 and it's leaking, repeated recharges get expensive fast, and at some point replacement becomes the cheaper path, not the safer-sounding one.
Who this is for
This is for homeowners in Palm Beach County, Broward County, or the Treasure Coast whose AC is running longer than usual, blowing air that isn't as cold as it used to be, or showing ice on the indoor coil or refrigerant lines. It's especially relevant if your home was built before 2010 and still has its original system, or if you live near the coast where salt air speeds up coil corrosion. If you already know you need repair or replacement decided, this guide will help you understand what a proper leak repair actually involves before anyone quotes you a number.
What to look for in refrigerant leak repair
A leak search, not a guess
A technician should use an electronic leak detector or UV dye to find the exact leak point before touching the refrigerant charge. If someone offers to "add a can and see how it does" without checking for a leak first, that's not a repair, it's a stall tactic that costs you money twice.
Correct refrigerant type for your system
R-22 and R-410A are not interchangeable, and using the wrong one damages the compressor. Confirm what your system was designed for before any refrigerant is added. Systems from before 2010 usually run R-22; anything newer typically runs R-410A.
Coil condition, not just the leak point
One pinhole leak on a coil that's already corroding from salt exposure is often a sign the whole coil is near the end of its life. A technician who checks the rest of the coil, not just the one spot that's leaking, gives you a more honest picture of what you're dealing with.
A pressure test after the repair
After a repair, the system should be pressure tested to confirm the leak is actually sealed before it's recharged and closed up. Skipping this step means you find out the leak wasn't fixed the hard way, weeks or months later.
Clear pricing before the work starts
Refrigerant leak repair pricing depends on the leak location, the refrigerant type, and how much charge the system needs. You should get flat-rate pricing explained before anyone opens up your system, not an estimate that changes once the work is underway.
Age and history of the system
A leak on a 4-year-old system is a different conversation than a leak on a 14-year-old R-22 unit that's already had two prior repairs. Age and repair history should factor into whether repair or replacement makes sense.
The most common ways refrigerant leaks get fixed
1. Locate and repair the exact leak point. The technician finds the leak with a detector or dye, repairs that section (usually a brazed joint or a small section of line), pressure tests it, then recharges the system to the manufacturer's spec. This is the fix that actually holds up. Verdict: Buy.
2. Replace the corroded coil section. Near the coast, salt air eats through evaporator and condenser coils years before the rest of the system wears out. If the coil has multiple pinholes or heavy corrosion, replacing just the coil often makes more sense than patching one spot. Coastal homes should also look at a maintenance schedule built for salt air exposure to slow this down going forward. Verdict: Consider.
3. Full system replacement for aging R-22 units. If your system is running R-22, is already 12 to 15 years old, and now has a leak on top of it, repair costs stack up against a refrigerant that's no longer produced. At that point replacement is usually the more sensible move than another patch. This is common in older South Florida homes that never had their original system swapped out. Verdict: Buy, if the system is already R-22 and aging.
4. Leak sealant additives. Products marketed as a pour-in fix for refrigerant leaks show up online and in some hardware stores. They can clog the expansion valve and void manufacturer coverage, and they don't address the actual hole. Verdict: Skip.
5. Topping off refrigerant with no leak search. Adding refrigerant without finding the leak buys you a few weeks of cooling before the charge drops again. It's the most common shortcut and the one that costs homeowners the most over a year of repeat visits. Verdict: Skip.
Get your refrigerant leak checked properly
A technician finds the leak, explains your options, and quotes flat-rate pricing before any work starts.
What to avoid
- Unlicensed refrigerant handling. Federal law requires EPA Section 608 certification to purchase and handle refrigerant. Anyone offering to sell you a can to add yourself is asking you to do something that isn't legal for an unlicensed person to do.
- A quote with no leak search included. If a repair quote doesn't mention finding the leak first, it's a recharge, not a repair, and you'll likely be back to square one within a season.
- Ignoring a small leak because the AC "still works." A slow leak in July doesn't stay slow. South Florida heat runs the compressor longer each day, and a small leak compounds fast once the system is working overtime.
Refrigerant leak repair options compared
| Approach | Best for | How long it typically lasts | Verdict |
|---|---|---|---|
| Locate and repair the leak | Systems under 10 years old, single leak point | Full remaining life of the system | Buy |
| Replace corroded coil | Coastal homes with salt air damage | Life of the new coil | Consider |
| Full system replacement | Aging R-22 systems with repeated leaks | Full life of new system | Buy for old R-22 units |
| Leak sealant additive | Nobody, in most cases | Does not fix the leak | Skip |
| Top off without leak search | Nobody, in most cases | Weeks to a few months | Skip |
FAQ
What is a refrigerant leak in an AC system?
A refrigerant leak is a crack or hole in the sealed lines or coil that lets refrigerant gas escape, which drops the system’s charge and reduces its ability to cool. It’s a mechanical failure, not something that gets used up like fuel; a properly sealed system should not lose refrigerant over time.
How do you know if your AC has a refrigerant leak?
Common signs are warm air from the vents, ice forming on the indoor coil or copper lines, longer run times, and higher electric bills without a clear cause. A technician confirms it with pressure readings and a leak detector rather than guessing from symptoms alone.
Can I add refrigerant myself to stop a leak?
No. Federal law requires EPA Section 608 certification to purchase or handle refrigerant, and adding it without finding the leak just delays the problem. The refrigerant will leak back out, usually within weeks.
Is R-22 still legal in Florida in 2026?
Existing R-22 systems are still legal to run in 2026, but production and import of R-22 stopped in the U.S. in 2020, so remaining supply is limited and priced accordingly. Repairing an R-22 leak often costs more than repairing the same leak on a newer R-410A system.
Should I repair a leak or replace the whole AC system?
It depends on the system’s age, refrigerant type, and repair history. A single leak on a newer R-410A system is usually worth repairing, while a leak on an aging R-22 unit with a history of repairs often points toward replacement instead.
How long does refrigerant leak repair take?
A straightforward leak repair, including leak search, brazing the repair, pressure testing, and recharging, typically fits into a single service visit. A coil replacement or full system swap takes longer and depends on parts availability.
Does homeowners insurance cover refrigerant leak repair?
Standard homeowners insurance generally does not cover AC refrigerant leaks, since they’re considered mechanical wear rather than sudden damage. Check your policy directly, since terms vary by carrier.
Why do coastal South Florida homes get more refrigerant leaks?
Salt air accelerates corrosion on outdoor condenser coils and can work its way into the coil fins over years, creating pinhole leaks earlier than inland homes see. Homes within a mile or two of the coast tend to need coil-related repairs sooner than homes further inland.
One last thing
The detail most homeowners miss: a refrigerant leak rarely shows up as one dramatic failure. It shows up as a slow creep, slightly warmer air this month than last month, an electric bill $20 higher than the same month a year ago. By the time the system stops cooling altogether, the compressor has usually been running low on charge for weeks or months, and that's the part that actually shortens its life. Catching the leak early, in 2026 or any year, is what keeps a repair a repair instead of a replacement.
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