Car AC Repair in Kearns, UT
Warm air or weak airflow? We diagnose, recharge and repair car AC systems for Kearns drivers, backed by a 12-month / 12,000-mile warranty*.
4219 W 5415 S, Kearns, UT 84118 · Get Directions
Mon-Fri 7:30am-6:00pm | Sat 8:00am-4:00pm | Sun Closed ·
- Waiting room
- Free Wi-Fi
- Open Saturdays
- Walk-ins welcome
- Online booking
12-month / 12,000-mile warranty* on parts & labor
Honored at every Master AutoTech location · Serving Utah and Idaho since 1963
*Exclusions apply. Ask your service advisor for full warranty terms.

- ASE Certified Technicians
- Best of State Utah
- Top Workplaces
- Family Owned Since 1963
Master AutoTech Kearns diagnoses and repairs car air conditioning for drivers across Kearns, Taylorsville and West Valley City, from a simple recharge to a new compressor. We find the actual cause before we add refrigerant, and AC repairs are backed by our 12-month / 12,000-mile warranty*.
Utah summers are hot when you’re stuck in traffic on 5400 South with the AC blowing warm. Our shop is on 5400 South near the Kearns Library, with a waiting room to cool off while we work.
Signs You Need AC Repair
A Utah summer is no time to find out your AC is failing. Bring your car in if you notice:
- Air blowing warm or only slightly cool
- Weak airflow from the vents, even on high
- A musty or sour smell when the AC runs
- Clicking, rattling or squealing when the AC turns on
- Water pooling on the passenger floor
- The AC works on the highway but not at idle
- Cooling that fades after a few minutes
AC Repair Services We Offer
AC diagnosis
Pressure and leak testing to pinpoint why the system isn’t cooling, explained before any repair.
Recharge & refrigerant service
Evacuate, vacuum test and recharge with the correct refrigerant and oil for your vehicle.
Leak repair
Hoses, seals, O-rings and fittings replaced so the recharge actually lasts.
Compressor & clutch
Failed compressors and clutches repaired or replaced with quality parts.
Condenser & evaporator
Damaged or clogged heat exchangers replaced to restore cold air.
Electrical & controls
Switches, relays, pressure sensors, blend doors and blower motors diagnosed and fixed.
How Much Does AC Repair Cost in Kearns?
Car AC repair cost depends on what failed. A system that’s simply low on refrigerant costs far less than one with a leaking evaporator or seized compressor. The main factors are the refrigerant your car uses (newer R-1234yf systems cost more to service than older R-134a systems), how hard the leak is to reach, and whether parts like the compressor, condenser or drier need replacing. We test the system first and give you an estimate before any work starts.
We keep our prices competitive and upfront: you get an estimate and approve it before any work starts.
Need to spread out the cost? Master AutoTech offers several financing options, including the Goodyear Credit Card (6-month special financing on purchases of $250 or more), the Synchrony Car Care credit card, the 1stMILE Mastercard, Snap Finance, Acima, Surepay and RC Willey financing.
Why Choose Master AutoTech Kearns for AC Repair
ASE-certified technicians
Kearns techs are required to earn ASE certification within 90 days of joining.
We fix the leak, not just the symptom
We find where refrigerant is escaping instead of topping it off and sending you home.
Warranty on parts and labor
AC repairs are covered for 12 months or 12,000 miles.
Comfortable wait
Relax in our waiting room with free Wi-Fi, open Saturdays too.
What Kearns Drivers Say
“Great place to go, reasonable prices and they take care of you quickly. I had my rims put on and shocks replaced. Wonderful people to do business with. Recommend them highly!”
Tania King
“***HIGHLY RECOMMEND*** “Amazing work on replacing my 2015 Ford Edge transfer case and drive shaft!! Big job, but these guys did it. So grateful for the whole process and commitment to get it done.”
Carmen Ramirez
“These guys know their stuff about trucks. I didn’t know Master Muffler did more than exhaust? I needed an oil change on my truck and stopped in to ask for the service. They do provide it with a reasonable price and a courtesy check on brakes visually to help customer stay safe on the road was no extra charge. Wow! I’ll be back. Thank you guys for the great service!”
VI Uigaese
Time to cool down
Don’t sit through another hot drive. Book an AC check or call 801-657-5000.
Components of Your Car’s AC System
Knowing the parts makes your estimate easier to understand. A problem with any one of them, or with the switches, relays and wiring that control them, can stop the AC from cooling, which is why we test the whole system first.
- CompressorThe powerhouse. Driven by the serpentine belt, it pressurizes refrigerant and pumps it through the system.
- CondenserA radiator for the refrigerant, in front of the engine radiator. It sheds heat so the gas turns back into liquid, which is why your radiator fan runs with the AC on.
- Receiver-drier or accumulatorFilters debris and moisture out of the refrigerant before they can damage the system.
- Expansion valve or orifice tubeMost cars use one or the other. Both meter refrigerant and drop its pressure so it can expand.
- EvaporatorBehind the dash. Expanding refrigerant absorbs heat from the cabin air, and the blower pushes the cooled air out your vents.
How Often Should You Service Your Car’s AC?
Have the AC checked every one to two years, ideally in spring before the heat arrives. A car AC loses a small amount of refrigerant each year, and dry Utah air, road dust and winter salt are hard on condensers and seals. Run the AC for a few minutes every week, even in winter, to keep seals lubricated.
| Item | Recommended interval |
|---|---|
| AC performance check | Every 1–2 years, before summer |
| Cabin air filter | Every 12,000–15,000 miles |
| Run the AC | A few minutes weekly, year-round |
About Master AutoTech Kearns
We’re a family-owned shop that treats every vehicle like it belongs to a neighbor. Master AutoTech started as Master Muffler in 1963 and grew into Utah’s largest auto repair franchise. Every technician here earns ASE certification within 90 days of joining the team. Meet our team.
You’ll find us on 5400 South near the Kearns Library, with I-215 a few minutes east. Pull into our lot right out front.
Wait in our waiting room with free Wi-Fi, or step out while we work: Loco Burger and Stan’s Market are right next door. We take care of drivers from Kearns, Taylorsville, West Valley City, Magna and West Jordan every day.
Download the Master AutoTech app and earn rewards
- Rewards & offersOffers and rewards land right in the app, not in a drawer full of coupons.
- Check-engine alertsSee the actual codes your car is throwing and message the shop about them.
- Maintenance trackingKnow what’s due and what’s overdue, with a weekly report on your vehicle.
- Glove BoxKeep registration, insurance and service records in one place.
How to get rewards: download the free app and your offers and rewards land right in it, ready to use at your next visit. Open the app before your visit to see what’s waiting for you. Book a Master Oil Change and get a free Master Link that connects your car to the app.

Areas We Serve
Drivers come to Master AutoTech Kearns for AC repair from across Kearns, Taylorsville and West Valley City.
- Kearns
- West Valley City
- Taylorsville
- Magna
- West Jordan
- Murray
Mon-Fri 7:30am-6:00pm | Sat 8:00am-4:00pm | Sun Closed
Get Directions · 4219 W 5415 S, Kearns
✓ 12-month / 12,000-mile warranty* *Exclusions apply.
✓ Financing available · See options
✓ Competitive, upfront pricing
✓ Get rewards in the Master AutoTech app
Buy 3 Tires, Get the 4th Free
Buy 3 tires, get the 4th free, Oct 1 – Dec 31.
Ends December 31, 2026 · Details
Nearby Master AutoTech Locations
Master AutoTech West Valley
3.1 miles away
4118 W 3500 S
West Valley City, UT 84120
Other Services at This Location
Frequently Asked Questions
Visit Master AutoTech Kearns
Master AutoTech Kearns
4219 W 5415 S
Kearns, UT 84118
Get Directions
Mon-Fri 7:30am-6:00pm
Sat 8:00am-4:00pm
Sun Closed
Getting here
- From I-215: Take the 5400 South exit west; we’re on 5400 South near 4200 West, by the Kearns Library.
- Parking: Pull into our new parking lot right out front on 5400 South.



