What Does Evaporator Replacement Cost in San Antonio?
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What’s Covered on This Page
- The Real Price Range for Evaporator Replacement
- What Changes Your Price
- What’s Included at Each Price Point
- A Typical Evaporator Replacement, Start to Finish
- When We’d Quote This Differently
- Do you charge a fee just to come out and quote evaporator replacement?
- Can I pay for evaporator replacement over time instead of all at once?
- Why would two evaporator replacement quotes for the same size system come in so different?
- What if I’m not sure whether my coil is still under manufacturer warranty?
- If the technician finds another problem while replacing the coil, will that be included in my price?
The Real Price Range for Evaporator Replacement
The price splits into two clear numbers. If your coil is still covered, replacement runs $1,250. If the warranty has expired, the job is $3,220. That’s the entire range. The deciding factor is a warranty check, not guesswork or a sales pitch.
Here’s why the gap is so big. On a warranty job, the coil itself is free from the manufacturer. You pay for labor, the acid flush, a new filter drier, refrigerant, and the work to balance the system afterward. On a non-warranty job, you pay for all of that plus the coil itself. (That’s the biggest line item on the invoice.)
- New evaporator coil (included in both prices; warranty status changes who pays for it)
- Acid flush to clear old refrigerant oil and debris from the line set
- New filter drier
- New refrigerant charge
- Labor
- Testing the system after the swap to confirm it’s operating correctly
- Cleanup of the work area
- Walkthrough review with you before we consider the job done
- Warranty processing, if the coil qualifies
What’s not in that price is anything unrelated to the coil itself. We’re talking about things like duct repairs, electrical upgrades, or a full system replacement. (A coil failure can be a symptom of a bigger problem.) On older San Antonio homes we’ve worked on, especially units installed before the 2010s, we sometimes find the coil failed early. It might be poor airflow from a dirty or undersized return, not just age. That’s a separate conversation. We flag it before doing any work, not after.
A leaking or corroded evaporator coil is a common repair we see across San Antonio during the hot months. Systems run long hours then, and refrigerant leaks show up fast. If you want to see how this fits against other coil issues we handle, our AC coil cleaning and evaporator replacement page breaks down the difference between a cleaning, a repair, and a full coil swap.
We check warranty status before we quote you a number. Not after. We offer financing if the non-warranty price doesn’t fit your budget right now. A free estimate gets you the exact number for your system before you commit to anything.
What Changes Your Price
One thing decides which end of that range you land on: whether the coil has manufacturer warranty coverage left. That’s it. We don’t price this job by home size, coil brand, or how hard it is to access the coil. On most systems, those factors barely move the labor time.
If it’s still covered under a factory warranty, the job runs $1,250. The manufacturer supplies the replacement coil at no cost. You pay for labor, an acid flush, a new filter drier, new refrigerant, system balancing, and the paperwork we handle to process the warranty claim.
If the warranty has expired, the job runs $3,220. It’s the same list of work, minus the warranty processing. We add the full cost of the new coil itself. That coil is usually the biggest line item in the job. This is why the price jumps once it’s no longer covered.
A quick way to check where you stand before we even show up: look at the paperwork from your original AC installation. Or, check the age of your system. Most manufacturer coil warranties run 5 to 10 years depending on when the unit was registered. We’ve had homeowners assume their coil was long out of warranty and been surprised it wasn’t. The reverse happens too.
- Whether the coil is still under manufacturer warranty (the main driver)
- Acid flush to clear contamination from the refrigerant lines
- New filter drier, required any time the refrigerant circuit is opened
- New refrigerant charge and full system balancing
- Warranty processing paperwork, only when the coil qualifies
What’s not in either price: ductwork repairs, electrical upgrades, or work on a separate issue like a failing blower motor or contactor. If a technician finds something else during the visit, we quote it separately before touching it. We give a free estimate on evaporator coil work across San Antonio. Financing is available if you’d rather not pay the full amount upfront.
What’s Included at Each Price Point
Both price points cover the same basic scope of work. The difference comes down to whether the coil has manufacturer warranty coverage remaining.

At $1,250, we’re working with a coil that’s still covered by the factory warranty. That price includes labor, an acid flush to clear out contaminants from the old coil, a new filter drier, new refrigerant, the replacement evaporator coil itself (supplied under warranty), and balancing the system once it’s back together. We also handle the warranty processing paperwork with the manufacturer. (That’s its own step and takes time on our end.)
At $3,220, the coil is no longer under warranty. So, we’re buying it outright instead of getting it through a manufacturer claim. That price includes the same labor, acid flush, filter drier, refrigerant, and system balancing, plus the coil itself at full cost. There’s no warranty paperwork step here, since the part isn’t coming through a claim.
In both cases, we test the system to confirm it’s running correctly before we call the job done. We clean up the work area. We also walk the homeowner through what was done and how the system is operating. You’re not left guessing what changed.
- Evaporator coil (warranty-covered or purchased, depending on tier)
- Acid flush to clear the refrigerant lines
- New filter drier
- New refrigerant charge
- Labor for removal and installation
- System testing and balancing
- Cleanup of the work area
- Walkthrough review with the homeowner
- Warranty processing, if the coil qualifies
What’s not in either price: duct repairs, electrical work beyond the coil circuit, or fixing a second problem we find that isn’t tied to the coil itself. If a tech notices something else during the job, like a weak capacitor or a dirty condensing coil, we’ll quote that separately before touching it. You approve the work before we start. You see the number in writing first.
If you want to see how this compares against other paths, our evaporator replacement page walks through when a repair makes more sense than a full coil swap.
We offer a free estimate for San Antonio homeowners who want a number in hand before deciding anything.
Have questions? We’re happy to help.
Get a Free Estimate. Atlas AC Repair is ready to help.
A Typical Evaporator Replacement, Start to Finish
Most evaporator coil jobs run between $1,250 and $3,220. The process looks the same either way. You call or chat with us, and we book the visit, most of the time for the same day. A technician comes out, runs diagnostics, and tells you what’s wrong before any tools come out for repair work.
- You call or chat to book the visit
- A technician runs diagnostics, often the same day
- We report what we found in plain terms
- We build a quote before touching the system
- You approve the work before we start
- We finish with a walk-through of the completed work and how the system runs
Every coil job includes labor, an acid flush, a new filter drier, new refrigerant, the coil itself, a system balance, testing to confirm the system runs right, and cleanup of the work area. If the coil still has warranty coverage, the part costs nothing. The job runs about $1,250. We’re only billing for labor, the flush, refrigerant, and warranty paperwork. If the coil is out of warranty, you’re paying for the coil itself too, and the job runs about $3,220.
In San Antonio, evaporator coils tend to take a beating from long cooling seasons and heavy humidity swings. We see corrosion pitting on coils that are eight to twelve years old more often than in milder climates. A technician checking a coil will usually look at the drain pan and line set at the same time. A coil failing from a slow leak often leaves a residue trail. This tells us how long it’s been going on.
We give free estimates before any work starts. Financing is available if you’d rather not pay the full amount up front. If you want to see how this fits with a full system replacement instead of a coil swap, our Evaporator Replacement page walks through when each option makes sense.
When We’d Quote This Differently
The number we give you comes down to one question: does the evaporator coil still have manufacturer warranty coverage? That single fact splits the job into two different prices. We won’t know which one applies to you until we pull the model and serial number off your unit.
If the coil is still covered, the job runs $1,250. That price covers labor, an acid flush, a new filter drier, new refrigerant, the replacement coil itself under factory warranty, balancing the system, and handling the warranty paperwork with the manufacturer. If the coil is out of warranty, you’re at $3,220. Same labor, same acid flush, same filter drier, same refrigerant, same system balancing. But now we’re buying the coil outright instead of claiming it through the manufacturer, and there’s no warranty processing step.
Coil age matters here more than most homeowners expect. Systems installed within the last 10 years are more likely to still have parts coverage. But that depends on the manufacturer and when the original unit was registered. We’ve pulled coils out of San Antonio attics where the paperwork said one thing and the serial number told a different story. So, we check the actual coil rather than going off memory or old invoices.
Access can add time, even if it doesn’t change the price tiers themselves. A coil sitting in a hallway closet air handler is a different job than one wedged into an attic platform during a San Antonio summer. (Attic temperatures can climb past what’s safe to work in for long stretches.) That’s part of why we look at the whole setup during the estimate instead of quoting off a phone description.
We give a free estimate before any work starts. You’ll know which of the two numbers applies to your system and what’s included before you decide anything. If evaporator replacement turns out to be the wrong move for your situation, our AC Replacement page covers what a full system swap looks like instead. Financing is available if you’d rather spread the cost out.
Frequently Asked Questions
Common questions about Evaporator replacement
Do you charge a fee just to come out and quote evaporator replacement?
No, we give a free estimate on evaporator coil work. A technician checks your coil, confirms the warranty status, and gives you the exact number for your system before any work starts. You won’t pay anything for that visit. This lets you compare your options without a bill attached, and you decide from there whether to move forward.
Can I pay for evaporator replacement over time instead of all at once?
Yes, we offer financing. If the non-warranty price of $3,220 doesn’t fit your budget right now, financing spreads the cost out instead of one lump payment. This applies whether your coil is still under warranty or not, since either job can be financed if you’d rather not pay upfront.
Why would two evaporator replacement quotes for the same size system come in so different?
The gap almost always comes down to warranty status, not the size of your home or the brand of coil. A coil still under manufacturer warranty runs $1,250, since the part itself is free and you’re only paying labor, the acid flush, filter drier, refrigerant, and system balance. Once the warranty expires, you’re also paying for the coil itself, which pushes the job to $3,220.
What if I’m not sure whether my coil is still under manufacturer warranty?
We check warranty status before we quote you a number, not after. Most manufacturer coil warranties run 5 to 10 years depending on when the unit was registered, so age alone isn’t a reliable guess. We’ve had homeowners assume their coil was long expired and been surprised it wasn’t, and the reverse happens too. This is why we confirm it directly instead of guessing.
If the technician finds another problem while replacing the coil, will that be included in my price?
No, anything unrelated to the coil itself is quoted separately before we touch it. Duct repairs, electrical upgrades, or issues like a failing blower motor sit outside both the $1,250 and $3,220 prices. If a technician spots something else during the visit, we’ll walk you through it and give you a number before doing any additional work.