Your Trusted Auto Repair Shop for 40+ Years
Sun Auto Service Round Rock
791 Louis Henna Blvd
Round Rock, TX 78664
Opening Hours

Sunday Closed
Monday 8:00am - 6:00pm
Tuesday 8:00am - 3:00pm
Wednesday Closed
Thursday 8:00am - 6:00pm
Friday 8:00am - 6:00pm
Saturday 8:00am - 5:00pm
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Expert Auto Repair & Mechanics

Looking for quality auto repair in Round Rock, TX? Our Sun Auto Service on Louis Henna Blvd and A.W. Grimes Blvd is your friendly neighborhood destination for maintenance and automotive repair services.  We offer a wide range of auto repair services to keep your vehicle on the road, including oil changes, engine repair, and more. Our Round Rock Sun Auto Service automotive repair services include:
  • Air conditioning repair and replacement
  • Transmission repair 
  • Oil change and tire rotations
  • Scheduled maintenance
  • Brake services
Looking for more auto repair and maintenance services? See our comprehensive list of auto repair services here. Quality Auto Repair in Round Rock, TX You Can Trust For nearly five decades, we’ve run our auto repair business focused on two goals: to earn your trust and to keep your vehicle running like new. Auto Repair Done Right Our auto repair shop in Round Rock is proud to be your alternative to the dealership. We believe that automotive care should be built on trust. Our commitment is to do the job you need and do it right the first time. That’s why we:
  • Offer a wide range of maintenance and auto repair services at reasonable prices
  • Only employ ASE-certified technicians 
  • Use top-of-the-line equipment and OEM or equivalent part
  • Guarantee all of our work in writing 
  • Offer a 2-year/24,000-mile warranty
  • Only perform the services you authorize
Excellent Customer Service  We know you have multiple options available to you when it comes to auto repair. That’s why our Round Rock service center is dedicated to providing you with quality auto repair services and excellent customer service you can count on. We are proud to offer:
  • Free towing with major repairs
  • Same-day service for many maintenance and auto repair services
That’s how we received our A+ rating from the Better Business Bureau - and we plan on keeping it that way! Save on Auto Repair Services We understand that quality auto repair can be quite costly. We’re proud to offer discounts on common auto repair services to help your dollar go the extra mile and keep your car running like new. Want to learn more about Sun Auto Service’s legacy of providing trusted auto repair and maintenance to the Southwest? Learn more about our 40+ years of great service here.

Auto AC Repair in Round Rock, TX

Is your car not keeping cool? Sun Auto Service is the expert when it comes to AC repair in Round Rock. Our knowledgeable technicians at our auto repair shop in Round Rock will use state-of-the-art equipment to repair your vehicle properly. Common AC issues our auto repair shop in Round Rock can address include:
  • AC blowing warm air
  • Not blowing at all 
  • Intermittent cooling issues
All AC repairs require skilled technicians to perform, including our standard AC service, where we’ll:
  • Adjust belts and tighten hose connections where necessary
  • Test for leaks electronically
  • Add refrigerant 
See our full list of Auto AC Repair in Round Rock, TX.

Oil Change in Round Rock, TX

Keep your engine running like new with regular oil changes from our auto repair shop in Round Rock! An oil change is an easy, cost-effective way to help your engine last longer.  Unlike oil changes at other auto repair shops, an oil change at our Round Rock, TX service center comes with:
  • A synthetic blend and full synthetic oil change
  • A complete multi-point inspection
  • Oil filter replacement
  • Fluid check
  • Lube chassis
  • Tire rotation
Our multi-point inspection helps our technicians catch and fix minor issues before they turn into costly repairs later.  Our auto repair shop in Round Rock  is equipped to meet all vehicles needs. We can service:
  • High-mileage engines
  • Four-wheel drive and SUV engines
  • High-performance engines 
Learn more about how our complete oil change service can help keep your car road-ready.

Auto Maintenance in Round Rock

Having routine maintenance performed at the proper intervals on your vehicle is one of the best ways to ensure your vehicle’s longevity, keep you on the road, and maintain a reasonable resale value.  The friendly service advisors at our auto repair shop in Round Rock  can help guide you on your vehicle’s specific maintenance schedule and answer any questions you may have.  Some of the maintenance services offered at our auto repair shop in Round Rock include:
  • Transmission flushes
  • Serpentine belt replacement
  • Brake fluid flush
  • Synthetic blend and full synthetic oil changes