How Much Does It Cost to Replace an AC Coil?
What to Expect When Your Air Conditioner Needs a Coil Replacement
If your air conditioner isn’t cooling your home properly, there’s a good chance the evaporator coil is to blame. A common question we get is: how much does it cost to replace an AC coil? The short answer — it depends. At Arctic Air, we’re here to break down the average costs, what influences them, and when it’s time to replace the coil versus upgrading your system entirely.
Average AC Coil Replacement Cost
In most cases, AC coil replacement costs range from $1,200 to $2,400, depending on the size of your unit and type of coil. If you have a larger system or one that uses a less common coil design, your cost may be on the higher end. Smaller systems or newer units tend to fall toward the lower end of the range.
Some of the most common factors that impact pricing include:
- Coil Type: A-coils are the most common and affordable, while N- and Z-style coils tend to cost more.
- System Size: Larger systems with more tonnage require larger, more expensive coils.
- Refrigerant Compatibility: Older systems using phased-out refrigerants can lead to higher costs.
- Labor & Accessibility: If your indoor unit is in a tight or hard-to-reach space like an attic, labor costs may increase.
Signs You Might Need to Replace Your AC Coil
If you’re noticing any of the following, your evaporator coil may be the issue:
- Your AC runs but doesn’t cool the house
- You see ice or frost on your indoor unit
- You notice a refrigerant leak or smell
- Your system is short-cycling or running constantly
These are signs that your coil might be dirty, damaged, or leaking refrigerant — and in many cases, replacement is the best solution.
Should You Replace the Coil or the Entire AC?
If your system is still relatively new — let’s say under 10 years old — replacing the coil can be a cost-effective solution that restores your comfort. But if your system is older, frequently breaking down, or uses R-22 refrigerant, you might be better off investing in a new, energy-efficient air conditioning installation.
Not sure which route to take? Arctic Air can help you decide what makes the most sense for your home and budget.
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If your AC system is struggling and you’re wondering about the cost to replace an AC coil, give Arctic Air a call. We’ll take a look at your system, walk you through your options, and get you back to comfortable living in no time.
FAQs
Is it worth replacing a coil on an air conditioner?
In many cases, yes. If your air conditioning system is under 10–12 years old, in otherwise good condition, and the damage is limited to the evaporator or condenser coil, then replacing the AC coil can be a cost-effective solution. However, if your system has ongoing issues, is using outdated refrigerant like R-22, or is nearing the end of its lifespan, a full system replacement might be the better long-term investment.
How much does it cost to replace an AC coil?
The average cost to replace an AC coil ranges between $1,200 and $2,400, depending on your system’s make, model, and coil type. Labor, refrigerant requirements, and location of the indoor unit can also affect the total price. At Arctic Air, we provide upfront pricing and honest recommendations to help you make the best choice for your home and budget.
How long do coils last in AC?
Evaporator and condenser coils typically last 10 to 15 years with regular HVAC maintenance. Factors like system usage, air quality, and maintenance frequency can affect coil longevity. A well-maintained system, including annual AC tune-ups, helps extend the life of your coils and improves overall performance.
What is the most expensive part of an AC unit to replace?
The compressor is usually the most expensive part to replace in a central air conditioning system. However, the evaporator coil can also come with a high price tag — especially if refrigerant recharge and labor are involved. If multiple major components fail, it’s often more cost-effective to consider AC system replacement.
Is it worth fixing a 20 year old AC unit?
In most cases, no. A 20-year-old air conditioner is past its expected lifespan, less efficient, and likely uses outdated refrigerants. Replacing individual parts like the coil on an older unit may provide temporary relief, but investing in a modern, energy-efficient AC system will save you more in the long run — both in repair costs and monthly energy bills.