Auto repair in Ontario, CA
Comtires is Ontario's family-owned auto repair and tire shop, on Holt Blvd at Mountain Ave since 2011. Our ASE-certified mechanics handle brakes, alignments, A/C, oil changes, suspension and full diagnostics, on daily drivers, family SUVs, trucks, Teslas and fleet vans.
Every repair starts with a complete estimate, and most repairs are backed by our 24-month / 24,000-mile warranty.
Since 2011
Family owned, one location, on Holt Blvd.
24 months / 24,000 miles
Our warranty on most repairs.
Free local shuttle
Around Ontario while we work on your car.
Your neighborhood shop on Holt Blvd
Ontario drivers put serious miles on their vehicles. Between daily commutes on the 10 and the 15, airport runs to ONT, school drop-offs, and weekend trips out to the desert or the coast, your tires and brakes work harder here than almost anywhere else in Southern California. That is the work we have been doing on Holt Boulevard since 2011.
Ontario sits in the middle of the Inland Empire's freight corridor, so the roads you drive every day share space with trucks heading to the warehouses and the airport. Stop-and-go traffic on Mountain, Holt and Euclid wears brake pads and rotors faster, and a rough stretch of pavement can knock a front end out of alignment long before you notice the pull.
Then there is the heat. Ontario summers regularly pass 100 degrees, and that is when a weak A/C quits, an old battery fails in a parking lot, and underinflated tires run hot on the freeway. Most of the A/C, battery and tire work we see in July and August starts as something that could have been caught in the spring.
Plenty of our Ontario customers drive for a living: contractors in pickups, delivery drivers putting hundreds of miles a week on a van, commuters heading to Los Angeles or Riverside. For them a day without the car is a day without income, so we give a clear time estimate at check-in, a complete estimate before any work starts, and a ride on our free local shuttle while the car is in the bay.
We are a single-location, family-run shop, not a chain. The same ASE-certified mechanics who diagnose your car today will be here the next time you come in. We service everything from commuter sedans and family SUVs to fleet vans, lifted trucks and Teslas. Whether you live in Downtown Ontario, in the Ontario Ranch communities south of the 60, or up near the 10, you are a few minutes from our bay.
Auto repair services in Ontario
Everything below is done at our Ontario shop. Each service has its own page with the details.
Brake repair in Ontario
Pads, rotors, calipers and an ABS check.
Wheel alignment in Ontario
Cars, trucks, vans and Teslas on Hunter equipment.
Car A/C repair in Ontario
R-134a and R-1234yf systems, leaks and recharge.
Oil change in Ontario
Full synthetic, and diesel-rated oil for diesels.
Steering and suspension in Ontario
Shocks, struts, ball joints, tie rods and racks.
AC compressor repair in Ontario
Including electric compressors on hybrids and EVs.
Lift and leveling kits in Ontario
Installed with an alignment included.
Extended warranty repairs in Ontario
We work with your warranty provider on the claim.
All auto repair services
Engine, electrical, diagnostics and more.
Ontario neighborhoods we serve
We are on Holt Blvd at Mountain Ave, on the west side of Ontario, so most of the city is a short drive away. Customers come to us from:
Downtown Ontario
The Holt Blvd corridor
North Ontario, near the 10
Ontario Ranch and South Ontario
Guasti and the ONT airport area
Ontario Mills
Toyota Arena and the Convention Center
Find us at Holt Blvd and Mountain Ave
Comtires
1113 W Holt Blvd, Ste B1
Ontario, CA 91762
Holt Blvd at Mountain Ave
Monday-Friday: 8:00 AM - 5:30 PM
Saturday-Sunday: Closed
From the 10 Freeway: take Mountain Ave south to Holt Blvd. No U-turn is needed.
Coming north on Mountain Ave: make a U-turn at Holt Blvd, then take the first driveway past the bus stop.
Nearby cities we serve
Drivers come to our Ontario shop from across the west Inland Empire.
Ontario, CA auto repair FAQ
Where is Comtires in Ontario?
At 1113 W Holt Blvd, Ste B1, on the corner of Holt Blvd and Mountain Ave, on the west side of Ontario. Coming south on Mountain Ave from the 10 Freeway, no U-turn is needed.
Are you open on weekends?
No. We are open Monday to Friday, 8:00 AM to 5:30 PM, and closed on Saturday and Sunday. You can book a weekday appointment online at any time.
Do you have a shuttle in Ontario?
Yes. Our free local shuttle covers Ontario and the cities right around it while we work on your vehicle. Just ask when you drop off.
Do you service fleet vans and work trucks for Ontario businesses?
Yes. We service commercial vans, work trucks and small fleets for Ontario businesses, including logistics, contracting and delivery operators across the Inland Empire.
What should Ontario drivers have checked before summer?
The A/C, the battery and the tires. Ontario summers regularly pass 100 degrees, which is hard on all three. We recommend an A/C check once a year, before the heat.
Do you offer financing?
Yes. We offer the Goodyear Credit Card, Synchrony Car Care, Snap Finance, Progressive Leasing, Koalafi, AutoPass, Acima and Easy Pay Finance. Most take a few minutes to apply for at the shop, and several do not require traditional credit.