Straight answers · Repair

AC Coil Replacement Cost in Scottsdale: Evaporator vs. Condenser Coil (2026)

What evaporator and condenser coil replacement actually costs in Scottsdale in 2026 — our real line items, under warranty vs. out, and why refrigerant weight moves the price more than tonnage does.

By Eric Lipp, Owner · Oct 22, 2026 · 7 min read

A coil quote is where a lot of Scottsdale homeowners first hear the word "replacement." The tech finds a leak, says the coil is shot, and the next sentence is a $14,000 system. Sometimes that's right. Often it isn't.

Below are our actual numbers, not a national average. Every line is something you can hold us to, and we put the whole thing in writing before anything gets touched. We serve Scottsdale from our Tempe shop, about 20 minutes up the 101.

Two coils, two different jobs

Every central AC and heat pump has two coils.

Evaporator coil (indoor). Sits on top of the furnace or air handler — in the attic, a closet, or the garage — or inside the rooftop package unit. It's the cold one. It sweats all summer, and that's where most coil leaks happen.
Condenser coil (outdoor). Wraps the outdoor unit or sits in the package unit on the roof. It dumps the heat. It takes the sun, the dust, the sprinklers — and in October 2026, the hail.

What a coil job is actually built from

A coil price isn't one number. It's four or five, and any honest shop can show you all of them:

Line item	What it runs
---	---
New coil — evaporator or condenser	$800 to $1,400, plus freight on some models
Coil covered by warranty instead	Coil is free; $50 to $100 processing
Labor on the refrigerant circuit	$1,595
Attic drainage re-pipe (evaporator only)	$300 to $500
R-410A refrigerant	$129 per pound

That $1,595 of labor is the part most quotes hide inside a single total. It covers recovering the old refrigerant, hauling the old coil back for return or disposal, a new filter drier, the welding labor itself, a nitrogen purge and pressure test, a deep vacuum, and a weighed-in recharge. On an out-of-warranty evaporator job it also covers a new TXV when the metering device needs one.

The drainage line only shows up indoors. Most Scottsdale evaporator coils live in the attic, and pulling one means re-piping the PVC condensate drain — more if it needs a new float switch.

Why nobody can quote you a price by tonnage

This is the question we get most, and it's the wrong one. Tonnage barely moves a coil job. Refrigerant weight does.

A system holds anywhere from 5 to 15 pounds of R-410A. At $129 a pound, that's the difference between $645 and $1,935 — a wider spread than the rest of the job combined. Two 4-ton systems in the same Scottsdale neighborhood can be $1,000 apart for that reason alone.

Here's the part that matters for your bill: if the coil is caught before the system bleeds out, we recover your existing charge, reuse it, and top off a couple of pounds. If the leak already emptied the system, there's nothing to recover and the full charge gets weighed back in at $129 a pound. That's why a leak found in April costs less than the same leak found in July after the system has been limping for three months.

What evaporator coil replacement costs

Under manufacturer warranty: $2,400 to $2,895. The coil itself is free once we file the paperwork; you're paying the labor, the warranty processing, the attic drainage work, and the refrigerant.

Out of warranty: $3,300 to $4,400. Same job plus the coil, and a TXV if the metering device needs replacing — included, not a surprise line later.

If those numbers look high against what you read online, that's the point of the table above. National cost guides run $650 to $2,400 and $2,000 to $5,000+ depending on whose page you land on, and the low ones are usually quoting a coil in a garage with the charge reused and no drain work. That isn't a Scottsdale attic in a two-story.

What condenser coil replacement costs

A condenser coil is the same coil cost and the same refrigerant-circuit labor, minus the attic drainage work — it's outside, so there's no condensate piping to rebuild. Expect it to land roughly $300 to $500 under the evaporator numbers above.

And this is where the math changes. On an outdoor unit past 10–12 years, a new condenser coil is most of the way to a new condenser. If the compressor is the same age, you're putting a new coil on an old engine.

Often the condenser coil doesn't need replacing at all. Bent fins from hail or a weed whacker get combed straight. A dirty coil gets cleaned. A pinhole at a braze joint can sometimes be repaired. Ask which one you have before you pay for a coil.

What else moves the number in Scottsdale

Where the indoor coil lives. Attic air handlers in the '90s and 2000s homes up the 101 mean more labor than a garage furnace. Rooftop package units in South Scottsdale (Old Town, Hy-View, Park Scottsdale) are a ladder and a careful walk.
Refrigerant type. R-22 systems (pre-2010, common in McCormick Ranch and Scottsdale Ranch second-system homes) cost far more per pound than R-410A, and that usually tips a coil job toward replacement.
Matching. A coil has to match the outdoor unit's capacity and metering device. A mismatched coil cools poorly and can void what's left of the warranty. Ask what model is going in.
Warranty registration. Most brands give 10 years on parts if the system was registered within 60–90 days of install, 5 years if not. We check the serial number and file the claim.
Multi-system homes. Two or three units is normal in Gainey Ranch and Scottsdale Ranch. Only the failed coil should be on the quote.

Repair the coil or replace the system?

Our rule, the same one we use everywhere:

System under 10 years, coil under warranty: replace the coil. Almost always.
System 10–15 years, R-410A, rest of the system healthy: you should see both numbers, all-in, side by side. Coil replacement often still wins.
System 15+ years, or R-22, or the compressor's also weak: replacement usually wins on bill-savings math, not fear.

Scottsdale is mostly APS territory, and APS ended its equipment rebate in January 2026 (what's still paying). There's no rebate deadline pushing you to replace. Take the time to compare.

What a fair coil job includes

When the refrigerant circuit is opened, a coil job should include: recovery of the old refrigerant, a new filter drier, nitrogen while brazing, a pressure test, a deep vacuum, and a weighed-in charge. If those aren't on the invoice, ask why. They're what keeps the new coil from failing in two years. Every one of them is inside our $1,595.

Hail on your outdoor unit?

If October's hail hit your outdoor unit, don't assume the coil is ruined. Most hail damage is bent fins that can be straightened. A pinhole leak may not show until next summer. We do hail damage inspections with photos and a dated written report for your insurance claim.

Questions people ask

How much does it cost to replace an evaporator coil in Scottsdale?+

$2,400 to $2,895 when the coil is under manufacturer warranty, and $3,300 to $4,400 out of warranty. That covers the labor on the refrigerant circuit, the attic condensate re-pipe, the refrigerant, and a TXV if one is needed.

How much does a condenser coil replacement cost?+

Roughly $300 to $500 less than the evaporator numbers, because an outdoor coil has no condensate drain to re-pipe. On an outdoor unit past 10–12 years, compare that against replacing the condenser.

Why can't you quote a coil by tonnage?+

Because tonnage isn't what moves the price. Refrigerant weight is. A system holds 5 to 15 pounds of R-410A at $129 a pound, so two same-size systems can be $1,000 apart. If we can recover and reuse your existing charge, you pay for a couple of pounds instead of all of it.

What does the $1,595 labor charge cover?+

Refrigerant recovery, returning and disposing of the old coil, a new filter drier, the welding labor, a nitrogen purge and pressure test, a deep vacuum, and a weighed-in recharge. On out-of-warranty evaporator jobs it includes a new TXV when the metering device needs one.

Should I replace the coil or the whole AC?+

Under 10 years with a warranty coil, replace the coil. Past 15 years, on R-22, or with a weak compressor, replacement usually makes more sense. In between, get both numbers all-in.

Is a leaking evaporator coil an emergency?+

Not dangerous, but it gets worse — and it gets more expensive. The system loses charge, cools less, and the coil can ice up. Running it low on refrigerant can damage the compressor, and once the charge is gone you pay for a full recharge instead of a top-off.

Can hail damage an AC condenser coil?+

Yes. Usually it's bent fins that can be combed straight. Sometimes it's a puncture that leaks later. Get it inspected and photographed for your insurance claim.