Refrigerant Leak Repair Cost: What You'll Likely Pay

Finding and fixing a refrigerant leak, then recharging the system, typically costs $200 to $1,500, with an average of around $800 (Fixr). Where the leak is and which refrigerant your system uses decide most of the price. Older systems that use R-22 cost the most to recharge.

As of 2026, the numbers below are national ranges from published cost guides, not quotes. Use them to check whether a quote looks normal.

What does a refrigerant leak repair cost?

Fixr lists refrigerant leak repair at $200 to $1,500, with an average of around $800 (Fixr). A separate Fixr article says repairing a leak and recharging the system generally costs $200 to $1,600, with an average of $800 (Fixr). That article says the price includes finding the leak, fixing it and adding new refrigerant.

Heat pumps fall in the same range. Fixr lists heat pump refrigerant leak repair at $200 to $1,500 (Fixr).

Most bills break down into three parts:

1. Finding the leak. A technician checks pressures and then hunts for the leak, which can take time on a large system.
2. Fixing the leak. This can be a small brazing repair, a new valve core, or a whole new coil.
3. Recharging the system. The technician adds refrigerant to the amount the manufacturer specifies.

The repair is the part that varies most. A leak at an accessible fitting is a small job. A leak inside a coil often means replacing the coil.

Why does an AC lose refrigerant?

It shouldn't. Your AC or heat pump is a sealed system, and the refrigerant circulates without being used up. Fixr notes a system should never need a refill unless there's a leak, or a major repair such as a new compressor required opening the system (Fixr).

So if a technician says your system is "low on refrigerant," the next question is where it went. Fixr says the most frequent leak location is the evaporator coil, but leaks also happen in the condenser coil, the line set and the valves (Fixr).

What are the signs of a refrigerant leak?

Fixr lists these common signs of low refrigerant (Fixr):

• The system runs, but the house never gets cold.
• Ice on the refrigerant lines or on the indoor coil.
• A hissing sound from the refrigerant lines.
• Warm air from the vents.

Other things can cause the same symptoms. A clogged filter or a dirty outdoor coil can make a system cool poorly or freeze up too. Check the filter and the space around the outdoor unit first. If those are fine and the problem continues, it's time for a technician.

If the indoor coil or lines are iced over, turn cooling off and let the ice melt. Running a frozen system can damage the compressor. Put towels down if water drips as it thaws, and keep water away from outlets and wiring.

If you'd like a quick read on the likely cause, Check my heating & AC asks a few questions and shows typical costs.

How much does refrigerant cost per pound?

Refrigerant prices depend on the type, and published prices vary a lot between sources. As of 2026, Fixr's most recent guide lists (Fixr):

• R-410A: $50 to $80 per pound, with a typical recharge costing $150 to $600 (Fixr)
• R-454B: $60 to $100 per pound, with recharges from $250 to $700 (Fixr)
• R-22: can exceed $150 per pound, with recharges ranging from $500 to $2,000 or more (Fixr)

The same guide says a typical home AC holds 6 to 16 pounds of refrigerant. Bigger systems hold more, so they cost more to refill.

Another Fixr article from 2026 gives different per-pound prices: R-22 at $50 to $150 per pound and R-410A at $65 to $120 per pound (Fixr). The gap is a reminder that refrigerant prices move. Ask your technician for the per-pound price and how many pounds they expect to add.

How do you know which refrigerant you have?

The EPA says it's typically listed on the unit's nameplate, which on a central AC is usually on the outdoor unit (EPA). If there's no nameplate, check the owner's manual or ask the company that installed or services it.

Why is R-22 so expensive?

R-22, sometimes called Freon, is being phased out because it harms the ozone layer. The EPA says no new R-22 has been made or imported into the U.S. since January 1, 2020 (EPA). Only recovered, recycled or previously made R-22 can be used for service.

That doesn't make your system illegal. The EPA says you can keep using and servicing an existing R-22 system, and you aren't required to replace it (EPA). But shrinking supply has pushed prices up.

Can you switch an R-22 system to a cheaper refrigerant?

Sometimes, but it's not simple. The EPA says there are no drop-in replacements for R-22 and that alternative refrigerants won't work well without changes to system components (EPA). As a result, technicians who repair leaks most often recharge with R-22.

Watch out for products sold as "R-22a." The EPA warns that R-22a is a flammable hydrocarbon blend, mainly propane and butane, that's not acceptable for home AC systems and can burn or explode (EPA). If anyone offers to put it in your system, say no.

What about R-410A?

R-410A replaced R-22 in most systems and is still common. It's now being phased down too. NAHB reports that R-410A production is being cut back year by year until it reaches 15% of current output by 2036, which will affect supply for maintenance (NAHB). Fixr says the phasedown has already driven R-410A prices up by 40 to 60 percent (Fixr).

If your system uses R-410A, it can still be serviced. Expect refrigerant to be a bigger part of the bill than it was a few years ago.

What happens during a leak repair visit?

Knowing the usual steps makes a quote easier to read.

1. Diagnosis. The technician connects gauges, checks pressures and temperatures, and confirms the system is actually low. Low pressure alone doesn't prove a leak, so a careful technician will rule out airflow problems too.
2. Leak search. They look for the leak along the coils, line set and valves. Methods vary, and small leaks can take a while to find.
3. Repair. This might be tightening or replacing a fitting or valve core, brazing a joint, or replacing a coil.
4. Pressure test. Many technicians pressurize the repaired system and watch for a drop before adding refrigerant.
5. Recharge and check. They add refrigerant to the manufacturer's specified charge and confirm the system is cooling properly.

If a quote skips straight to step 5, ask about steps 2 through 4.

What changes the cost of a leak repair?

Two homes with "a refrigerant leak" can get very different bills. These are the main reasons.

• Where the leak is. A leak at a service valve or a fitting near the outdoor unit is quick to reach. A leak inside an indoor coil in a tight attic takes far longer, and may mean replacing the coil.
• How hard it is to find. Small leaks can take time to track down. Some need more than one visit.
• Which refrigerant you have. R-22 costs the most per pound, and newer refrigerants have their own prices. See the per-pound figures above.
• How big the system is. A larger system holds more refrigerant, so a full recharge costs more.
• Whether old refrigerant has to be recovered. When a system is opened for a repair, the technician recovers the refrigerant rather than venting it. Fixr lists refrigerant recovery at $50 to $150 (Fixr).
• Labor rates and timing. Fixr says most HVAC professionals charge $75 to $175 per hour, and emergency service can cost $150 to $300 per hour (Fixr).
• Warranty. A coil or part still under the manufacturer's warranty can lower the bill, though labor and refrigerant usually aren't covered.

How long does a recharge take?

Fixr says it takes about 5 to 10 minutes to add 1 pound of refrigerant (Fixr). The recharge itself is usually the quick part. Finding and fixing the leak, and then checking that the system holds pressure, take longer.

What does it cost when the leak is in a coil?

A coil leak is the most common expensive case. Coils are made of thin tubing, and small leaks there often can't be patched well. Replacing the coil, plus the recharge, is what pushes a leak repair toward the top of the range.

• Evaporator coil replacement: $400 to $2,700 (Fixr)
• Evaporator coil replacement, another estimate: $600 to $2,000 (Fixr)
• Condenser coil replacement: $600 to $2,400 (Fixr)

The coil is often covered by the manufacturer's parts warranty for several years. If your system is fairly new, ask whether the coil is covered and what you'd pay for labor and refrigerant.

Should you just top it off?

Topping off a leaking system without fixing the leak is a short-term fix. The refrigerant leaks out again, and you pay again.

The EPA asks homeowners to have technicians locate and repair leaks instead of "topping off." It says repairing leaks protects the environment, cuts future service calls and repair costs, and lowers operating costs by improving performance (EPA). The EPA also says it's illegal to intentionally release refrigerant while servicing equipment.

There are times a top-off is a reasonable stopgap, like getting through a heat wave while you wait for a replacement. If a technician suggests one, ask how fast the system is losing refrigerant and how long the charge is likely to last.

Charging matters even without a leak. ENERGY STAR says too much or too little refrigerant makes a system less efficient, raises energy costs and shortens the life of the equipment (ENERGY STAR).

Can you add refrigerant yourself?

No. The EPA says Section 608 certification is required to recharge appliances, and refrigerant for home systems is only sold to certified technicians or the companies that employ them (EPA). Refrigerant work involves high pressures and specialized tools.

When you hire someone, it's fair to ask whether the technician holds EPA Section 608 certification. The EPA suggests asking, and says you can ask to see the certification card (EPA).

Should you repair the leak or replace the system?

It depends on the system's age, its refrigerant and where the leak is.

Repair usually makes sense when:

• The system is under 10 years old.
• The leak is at an accessible fitting or valve.
• The coil is still under warranty.
• The system uses R-410A or a newer refrigerant.

Replacement is worth pricing when:

• The system uses R-22 and has a leak. Fixr says this is a strong signal that replacement is the more economical option (Fixr).
• The leak is in a coil on a system more than 10 to 15 years old.
• You've already recharged the system more than once.

Fixr's 50 percent rule helps: if a repair costs more than half the price of a new system, replacement is probably the better long-term choice (Fixr). ENERGY STAR suggests considering replacement when an AC or heat pump is more than 10 years old (ENERGY STAR).

For what a new system costs, see AC replacement costs. For other cooling repairs, see AC repair costs. If you have a heat pump, heat pump repair and replacement costs covers that system.

What should you ask for a fair quote?

1. What's your service-call fee, and does it go toward the repair?
2. How did you confirm there's a leak, and where is it?
3. Will you repair the leak, or only add refrigerant? If only adding, why?
4. Which refrigerant does my system use, what's your price per pound, and how many pounds do you expect to add?
5. Is the coil or part covered by the manufacturer's warranty?
6. Can I get the price in writing, with leak search, repair, parts and refrigerant listed separately?
7. Is the repair guaranteed? What happens if it leaks again soon?
8. Does the technician hold EPA Section 608 certification?
9. At this age, would you repair it or replace it, and what's the cost difference?

A clear answer to "where is the leak?" is a good sign. A plan to keep adding refrigerant without looking for the leak is a reason to get a second opinion.

The bottom line

A refrigerant leak repair with a recharge typically costs a few hundred dollars and can climb past a thousand when a coil needs replacing. The refrigerant type matters a lot: R-22 is the most expensive to recharge, and R-410A prices are rising as it's phased down.

Ask where the leak is and get it fixed rather than topped off. On an older R-22 system, compare the repair with the cost of a new system before you decide. If you'd like to understand the likely cause first, Check my heating & AC is free and can connect you with a local company.