How Much Does an Evaporator Coil Replacement Cost?

Matt Marandola
Written by Matt Marandola
Reviewed by Robert Tschudi
Updated June 15, 2022
Outdoor AC unit
Photo: galinast / iStock / Getty Images

An evaporator coil replacement costs around $1,300 on average

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Whereas you normally walk into the Arctic Circle when you get home, you walked in today, and it felt like New Orleans in July. There’s a chance that your evaporator coil is on the fritz and needs a replacement. The cost to replace an evaporator coil fluctuates between $600 to $2,000, depending on the unit and brand of the evaporator coil.

“We always ask our HVAC technicians to perform a thorough leak test to determine whether the evaporator coil really needs to be replaced,” says Bob Tschudi, a Raleigh, NC-based general contractor and Angi Expert Review Board member. “It adds some cost, but if no leak is detected, you will save a lot of money.”

How Much Does an Evaporator Coil Replacement Cost by Unit?

AC units differ in size from household to household. While you may have a 3-ton unit outside your home, your neighbor may be rocking a window unit. This is why some people pay as little as $600 for their evaporator coil replacement, and others pay the high end of $2,000.

The typical price to replace your evaporator coil by unit size is:

  • 2 ton: $550

  • 2.5 ton: $675

  • 3 ton: $825

  • 3.5 ton: $925

  • 4 ton: $1,000

  • 5 ton: $1,075

This cost is only for the unit replacement itself and does not include labor. Labor costs around $700 on average. If your unit doesn’t state how big it is, you should contact your local air conditioning repair company to help you figure it out.

Evaporator Coil Replacement Cost Breakdown

Beyond the size of the unit, you also need to consider labor costs, ease of access, and the brand of evaporator coil. You should also prepare yourself in case the AC repair company tells you other things need fixing.

“Another way to save money is to ask your HVAC tech to repair the leak,” says Bob Tschudi,. “It’s more tedious a repair than replacing the entire coil, but it should save you a lot of money.”

Labor

Labor costs anywhere from $400 to $1,000 depending on the job and service area. Labor tends to cost around the same as the evaporator coil itself because you need a license to handle refrigerant. Refrigerant is a serious chemical compound you don’t want on your skin.

Ease of Access

Where the unit resides in your home makes a difference. In most cases, a unit is an accessible place that makes repairs easy. But if the unit is older or doesn’t make it easy to work in, expect to pay more in labor costs, as the AC repair person needs to shimmy into a tight fit and may need to disassemble more of the unit.

Brands

Thankfully, there’s a lot of competition in the evaporator coil replacement market, which means more competitive pricing. As a result, you can shop around and send quotes back and forth to try and get the best deal for yourself.

Common brands to consider include:

  • ADP: $600

  • Aspen: $475

  • Bryant: $625

  • Carrier: $850

  • Goodman/Amana: $575

  • Lennox: $1,100

  • Payne: $625

  • Rheem/ Ruud: $800

  • TempStar: $650

  • Trane/American Standard: $750

  • York: $725

Any Other Repairs

The complement to the inside evaporator coil is the condenser coil. The condenser coil cools the gas the evaporator creates and turns it back into a liquid. They tend to have the same lifespan, so if your evaporator is on its last leg, you may want to check out your condenser as well.

An AC condenser coil replacement costs around $800.

Other common items that may need replacing include:

  • Motor: $475

  • Control circuit board: $275

  • Relay switch: $225

How Much Does an Evaporator Coil Replacement Cost by Style?

Outdoor AC unit
Photo: C5Media / iStock / Getty Images

There are three main types of evaporator coils: A-coils, N- or Z-coils, and slab units. 

  • A-coils:

    • Cost around $1,300 on average

    • Look like a tent

    • The most common type of evaporator unit

  • N- or Z-Coils

    • Cost around $1,550

    • The coils look like the letter N or Z, depending on how it was installed

    • Not as common because they’re prone to freeze-ups

  • Slab units

    • Costs around $1,200

    • The coils are two slabs pushed together

    • Not as common

Then from there, the coils come in two options: cased and uncased evaporator coils.

  • Uncased coils

    • Cost around $800 on average

    • Harder to install and needs to fit the unit exactly

  • Cased coils

    • Costs around $1,000 on average

    • More leeway on where it can fit

    • Easier to install

How Much Does an Evaporator Coil Replacement Cost to Do Yourself?

Unless you’re a licensed refrigerant technician, this is not a job you should handle yourself. Hiring an HVAC unit company to get the job done for you is really the only option in these scenarios because refrigerant is a dangerous chemical. So save yourself the high energy bill and sweat and leave this job to the professionals.

FAQs About Evaporator Coils

What is an AC capacitor?

An AC capacitor stores energy so that it already has some power to get going when you turn on the AC unit. The cost to replace an AC capacitor is around $175.

How do you maintain your AC unit?

To maintain your AC unit, you’ll want to ensure you’re getting annual tune-ups. The cost of an AC tune-up is around $125 on average. Your AC unit also needs cleaning from any dust and dirt it collects over the year.

Should you replace or repair your AC unit?

One of the best indicators on whether you should replace or repair your unit is its age. Most units last around 15 years. So if your AC is older than that, it might be time to start over with a new unit.

How long does it take to replace an evaporator coil?

It takes around 2 to 3 hours to replace an evaporator coil. This time will change depending on the ease of access to the component.

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