How much is an AC tune-up in San Antonio?
$149 for our standard spring tune-up — a full 21-point inspection covering cooling performance, electrical, airflow, drainage and safety, plus a coil rinse and a written report.
Symptoms hitting your home?You haven't had the AC checked in over a yearLast summer the system struggled on the hottest daysElectric bill has been creeping up year over year
San Antonio · AC Tune-Up · Same-Day Service
AC Tune-Up in San Antonio — $149, Before The First 100° Day.
A real tune-up isn't a sticker and a handshake. It's a full 21-point inspection of a San Antonio home's cooling performance, electrical, airflow, drainage and safety — finished with a written report, so you know exactly what shape your system is in before summer hits.
4.989+ Google reviews· Licensed TACLB29435E· Family-Owned Since 2010
Typical price
$149
Level I · Quick Relief Repair
Time to fix
60–90 minutes
Same-day available
Urgency
High in March–May — slots fill up fast before summer
Free diagnostic · Written price before any work · No call center — Clint or a member of our team picks up
Family-OwnedSince 2010 · TACLB29435E
15+
Years in San Antonio
Same-Day
Service window
$0
Diagnostic fee
TACLB29435E
Texas Master License
In plain English — what's going on with your ac tune-up
Every AC system in San Antonio loses a little performance every year. Capacitors weaken, coils get dirty, refrigerant slowly leaks, drain lines partially clog. None of it shows up on a 75° day in March — but the first 102° afternoon in July is when all of it suddenly matters.
A spring tune-up catches the problems while they're still cheap. A $200 capacitor caught in March is a $200 fix. The same capacitor failing on a Saturday in August is a $200 fix plus an after-hours fee plus three days of misery.
Our $149 spring tune-up is a full 21-point inspection covering cooling performance, electrical, airflow, drainage and safety, plus a written report. Call or text us and we'll walk you through the complete point-by-point list. The $149 is also applied as credit toward any repair we find.
What it costs in San Antonio
$149 — Spring promo price. Includes coil rinse and full inspection. Credit applied to any repairs needed. Diagnostic is free and the written price comes before any work — you only pay if you green-light the fix.
I
Repair Tier · $89 – $350
Quick Relief Repair
Cold air today — how our flat-rate pricing works
Symptoms you'll notice at home
If two or more of these sound familiar, it's probably your ac tune-up.
You haven't had the AC checked in over a year
Last summer the system struggled on the hottest days
Electric bill has been creeping up year over year
You just bought the house and don't know the system's history
AC is more than 5 years old (most problems start in this window)
You want to catch problems before August when techs are slammed
Why ac tune-ups fail in San Antonio
- Texas heat is hard on every part — annual maintenance is what manufacturers require for warranty.
- Most repair calls in July/August are problems that were obvious in March.
- Refrigerant leaks slowly and you don't notice until performance falls off a cliff.
- Capacitors weaken predictably over 5–7 years — easy to catch and replace cheap.
- Drain lines clog gradually — flushing once a year prevents water damage.
Want a written price today?
Text us a photo of the unit.
Snap the data plate, send it to (210) 600-5091. We'll text back a real price range — usually within an hour during business hours.
How we diagnose and replace it
Here's exactly what a Carnes and Sons tech does at your house — no mystery, no upselling.
- 1
Outdoor unit performance
Cooling performance and refrigerant health are verified and the outdoor unit is cleaned up so it can shed heat the way it was designed to.
- 2
Indoor coil and airflow
We inspect the indoor side and measure airflow so weak spots show up in March instead of on the hottest afternoon of the year.
- 3
Electrical and safety checks
Controls, electrical components, and every safety on the system get tested — this is where most summer breakdowns are caught early.
- 4
Drainage and written report
Drainage is cleared and protected against water damage. You get a written report with photos, readings, and any recommended repairs ranked by urgency. Ask us and we'll walk you through all 21 points.
We service every major brand
AC Tune-Up repair on residential systems from every major manufacturer — same parts inventory on the truck, same flat price.
TraneCarrierLennoxGoodmanRheemAmerican StandardYorkBryantAmanaRuudHeilDaikinMitsubishi
Don't see your brand? If it's residential split-system or package, we work on it. Most ac tune-up parts are universal — what changes is the wiring diagram, not the part.
What Your Neighbors Are Saying
AC Tune-Up questions San Antonio homeowners actually ask
When should I get a tune-up?
Late February through May is ideal — before the heat hits and while tech availability is good. We also offer fall tune-ups in October/November for heat pumps.
Will you try to sell me a bunch of repairs?
No. Our tune-up ends with a written report and photos so you can see exactly what we found. We rank repairs by urgency — what has to happen now versus what can wait. No high-pressure sales pitch, period.
Do I need a tune-up every year?
Yes. Manufacturers require annual maintenance for the warranty to stay valid. More importantly, every part on your system ages — annual tune-ups catch the weak spots before they fail.
What's the difference between a tune-up and a maintenance plan?
A tune-up is one visit. Our Comfort Club plan ($250/yr) includes two visits (spring AC, fall heat), priority scheduling, no after-hours fees, 15% off repairs, and a 5% loyalty credit toward future replacement.
How long does a tune-up take?
60 to 90 minutes for a single-system home. Multi-system homes take longer. We do not rush tune-ups — a 15-minute 'check' is not a tune-up.
Will a tune-up actually lower my electric bill?
Often yes. A clean coil, properly charged refrigerant, and clean blower can drop AC runtime 10–25%. Customers regularly see $40–$80/month savings in summer.
What if you find a problem?
We tell you, show you photos, give you a written price, and let you decide. The $149 tune-up cost gets credited toward any repair you approve.
Serving ac tune-up repairs across the greater San Antonio area
We're based in Stone Oak and roll trucks across San Antonio and the surrounding Hill Country every day.
Carnes and Sons Air Conditioning
License TACLB29435E · Family-Owned Since 2010
401 E Sonterra Blvd Suite 375
San Antonio, TX 78258(210) 600-5091
San Antonio, TX 78258(210) 600-5091
Mon–Sat: 7AM – 8PM · Emergency same-day service
Most ac tune-up jobs booked same day
Cities & neighborhoods we serve
San Antonio · Stone Oak · Alamo Heights · Hollywood Park · Hill Country Village · Shavano Park · Castle Hills · Leon Valley · Helotes · Boerne · Fair Oaks Ranch · Bulverde · Timberwood Park · Garden Ridge · Schertz · Cibolo · Selma · Universal City · Live Oak · Converse · Windcrest · New Braunfels
Talk to a real person about your ac tune-up
No call center. Clint or a member of our team picks up.
(210) 600-5091