An AC coil replacement costs $627 to $2,700 in 2026
This Old House puts evaporator coil replacement at $627 to $2,700, about $1,350 on average, including labor and refrigerant. A typical 3 ton system runs about $1,300 to $1,600. An outdoor condenser coil costs about $900 to $2,300. If the coil is under warranty, you mainly pay labor.
Cost by coil and size
| Evaporator coil, average | About $1,350 (This Old House). |
|---|---|
| Evaporator coil, range | $650 to $2,400 installed (PickHVAC, 2026). |
| Condenser coil (outdoor) | $900 to $2,300. |
| 3 ton system | About $1,300 to $1,600. |
| 2 to 3 ton system | About $1,250 to $1,550. |
| Under warranty | Mostly labor and refrigerant. |
What pushes a quote up
| Coil type | A coils, N or Z coils and slab coils differ in price. |
|---|---|
| System size | Bigger systems need bigger coils and more refrigerant. |
| Refrigerant | Recharging is part of the job. |
| Warranty | Parts coverage cuts the bill. |
| Access | Attic and tight closets take longer. |
AC coil replacement cost by region
| Lower cost states | $875 to $1,275. Alabama, Arkansas, Indiana, Iowa, Kansas, Kentucky, Mississippi, Missouri, Oklahoma, Tennessee, West Virginia and most rural areas. |
|---|---|
| Average cost states | $1,100 to $1,600. Arizona, Florida, Georgia, Michigan, North Carolina, Ohio, Pennsylvania, Texas, Virginia and most mid size cities. |
| Higher cost states | $1,425 to $2,100. California, Connecticut, Hawaii, Massachusetts, New Jersey, New York, Washington, plus big metros such as Chicago, Denver and Washington DC. |
These rows are our estimate. We took the typical national range and adjusted it for local labor costs, which run about 20 percent lower in the cheapest states and about 30 percent higher in the dearest ones. HVAC labor rates vary by region and season.
Coil or whole system
A leaking evaporator coil is a common reason an older AC stops cooling. This Old House notes that if the coil is still under warranty, you pay mainly for labor and materials, so check your paperwork before you approve the job.
On an older system, get a quote for a full replacement too. A new coil on an old system can leave you paying again when the compressor fails. See our central air installation cost and AC compressor replacement cost pages.
Ask whether the new coil matches your outdoor unit, because a mismatch hurts efficiency.
Why this costs more in 2026
Refrigerant and coil prices rose as the industry moved to new refrigerants.
The short version is oil. Diesel passed $6 a gallon on the AAA national average for the first time on September 11, 2026. A year earlier it was about $3.70 (CBS 8 reporting AAA). That lands in trip charges, deliveries and anything made from petroleum. In March 2026, construction input prices were up 4.8 percent on the year, the biggest annual gain since January 2023, according to Associated Builders and Contractors, and the Associated General Contractors measured a 37.8 percent one month jump in diesel, the largest since 1990 (Roofing Contractor, April 2026). Quotes are being held open for shorter periods this year, so ask for the expiry date in writing.
How to judge the quote in your hand
- Check the warranty on the coil.
- Ask which coil type and size.
- Ask if refrigerant is included.
- Ask for the leak test result.
- Get a replacement quote too on an older system.
Ways to pay less
- Claim the parts warranty.
- Book outside peak summer.
- Compare to a full replacement on an old system.
- Get two quotes.
What will this cost me?
Pick the job, your state's cost level and the last detail. The estimate updates as you change them.
An estimate built from published 2026 cost guides. It is not a quote. Get a written quote before work starts.
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Book a free 15 minute callNo pitch deck. We run your audit live on the call.Common questions
How much does it cost to replace an AC coil?
$627 to $2,700, about $1,350 on average.
Is an evaporator coil covered by warranty?
Often, for parts. You still pay labor and refrigerant.
Should I replace the coil or the whole AC?
On an older system, get a quote for both before you decide.
Does the new coil need to match my outdoor unit?
Yes. Ask your installer to confirm the match.
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Photo: U.S. Air Force AFCENT by Airman 1st Class Derrick Bole, Wikimedia Commons, Public domain, cropped.