Finding and fixing AC refrigerant leaks in New Orleans
If your AC needs refrigerant, it has a leak. Adding more without finding it is paying for the same problem every summer. We locate the leak, repair it, then charge the system correctly.
Answered 24/7Mid-City service officeSlidell head officeEvery major brand
An air conditioner in New Orleans that runs low on refrigerant has a leak somewhere, most often in the evaporator coil, a flare fitting or a corroded outdoor coil. A proper repair means finding the leak with electronic detection or a pressure test, fixing or replacing the leaking part, pulling a vacuum and recharging by weight.
Signs your AC is losing refrigerant
- AC runs but cools poorly on hot afternoons
- Ice on the copper line or indoor coil
- Hissing or bubbling sound near the unit
- System runs much longer than it used to
- Needed a recharge last summer too
- Oily spots on the line set or coil
- Higher bills with no change in use
Why low refrigerant always means a leak
Updated September 2026
Refrigerant does not get used up. It circulates in a sealed loop for the life of the system, so if the charge is low, it escaped. Topping it off hides the symptom until the next hot week, and running a system low overheats the compressor.
Leaks here come from predictable places: pinholes in the indoor coil, loose flare fittings on mini-splits, vibration wear where copper rubs, and outdoor coils corroded by humid, salty air.
How a refrigerant leak repair runs
- 1
Confirm the charge is low
Pressures, superheat and subcooling measured.
- 2
Find the leak
Electronic detector, bubble test or nitrogen pressure test.
- 3
Quote the repair
Fitting, line or coil repair, or replacement if that is honest.
- 4
Repair
Braze, flare or replace the leaking part.
- 5
Pressure test and vacuum
Nitrogen test, then a deep vacuum held and confirmed.
- 6
Charge by weight
Correct charge weighed in and verified.
Low Refrigerant Recharge
A recharge on its own is appropriate only after the leak has been found and repaired, or when a new installation or repair has opened the system. We recover what is left if needed, pull a deep vacuum to remove moisture and air, confirm the vacuum holds, then weigh in the correct charge from the nameplate and verify it with superheat or subcooling. Guessing a charge by gauge pressure alone is how systems end up overcharged, which costs efficiency and strains the compressor just as a low charge does.
Typical New Orleans-area planning range: $250-$3,500+ depending on the failed part. Market data, not our quote; your price depends on the factors below.
Line Set Leak Repair
The copper lines between the indoor and outdoor units leak at flare fittings, at brazed joints and where the line rubs against framing or a wall edge. We find the leak, cut out the damaged section or rebuild the fitting, braze or flare new copper, and pressure-test with nitrogen before charging. On mini-splits, flare fittings that were not torqued correctly at install are a common source of slow leaks we find years later, and rebuilding them correctly usually ends the problem for good.
R-410A and R-32 Systems
Most systems in service run on R-410A; newer equipment is moving to lower-impact refrigerants such as R-32 and R-454B. Each is handled with the right gauges, recovery and charging practice, and they are never mixed. Older R-22 systems are a different case: the refrigerant is out of production, so a leak repair and recharge on R-22 is rarely worth the cost, and we will say so honestly. In that case the money is better spent toward a new system on current refrigerant.
How long the repair takes
Most fitting and line-set repairs are done in a single visit, including the vacuum and recharge. Coil replacements depend on having the matching coil; we give you a date when we quote. Slow leaks sometimes need a second visit with the system pressurized overnight to prove the repair held.
Corrosion and coil leaks
Salt air off the Gulf combined with months of humidity is hard on outdoor coils, and the thin aluminum fins and copper tubes corrode faster here than in drier regions. Some of the leaks we find in older condensers are not a single hole but a coil worn through in several places. When that is the case, a patch will not hold, and the honest answer is a coil or outdoor unit replacement.
Repair the leak or replace the part
| Repair in place | Replace the coil | Replace the system | |
|---|---|---|---|
| Best for | Fittings, lines, small pinholes | Leaking coil on a sound system | Old or R-22 systems |
| Time | Usually one visit | One day once parts arrive | One to two days |
| Holds long term | If the leak is isolated | Yes | Yes |
| Refrigerant | Same | Same | Current type |
What decides the cost of a leak repair
Repairs in this area span a wide range; where the leak is and what refrigerant the system runs on decide most of it.
Leak location
A flare fitting is simple; a leaking evaporator coil is a major part.
Detection time
Slow leaks can take longer to pin down.
Refrigerant type and amount
Charge size and refrigerant price vary by system.
Coil condition
A coil corroded in several places points to replacement.
System age
An old system may not justify a large repair.
Warranty
A coil under manufacturer parts warranty lowers the cost.
Questions about Refrigerant Leak Repair in New Orleans
We can, but without a leak repair it will leak out again, and running low damages the compressor.
With an electronic leak detector, bubble solution and nitrogen pressure testing.
The indoor evaporator coil, flare fittings, brazed joints and corroded outdoor coils.
A fitting or line repair is usually a single visit. A coil replacement may require ordering the part.
Only as reclaimed stock, and it is expensive. Most R-22 leaks point toward replacement.
Formicary corrosion and manufacturing flaws can cause early coil leaks; check whether the coil is still under parts warranty.
Modern refrigerants are low toxicity in normal home amounts, but ventilate the area and call if you smell a strong chemical odor.
No. Sealers can clog metering devices and recovery equipment. We repair the leak.
More cooling repair we handle in New Orleans
AC Compressor Repair & Replacement
Compressor hard start, grounded compressor and more.
Our AC compressor repair & replacement serviceAC Condenser Coil Replacement
Corroded condenser coil, coil vs full condenser and more.
AC Condenser Coil Replacement in New OrleansAC Fan & Blower Motor Replacement
Condenser fan motor, indoor blower motor and more.
Condenser fan motorAC low on refrigerant again?
Call and we will find the leak instead of just topping it off.
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