Your Quality Mechanic in Upland for Over 17 Years

We’ve been committed to auto repair and to serving the Upland area with honesty, quality, and value since 1998!

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About Us

We are auto service repair professionals you can trust! We are family owned and operated. With over 20 years of experience servicing Upland, Claremont, Montclair, Rancho Cucamonga, Ontario and neighboring communities, we will fix your vehicle right the first time at a very reasonable price. 

We take pride in our work and many of our customers are referred to us by our other satisfied customers. We have been in business in the same location for over 17 years. ​

Our Services

Our quality ASE (Automotive Service Excellence) certified mechanics at Alonso’s Auto Repair use today’s latest automotive technology and are equipped to work on most major and minor auto repair services on foreign and domestic vehicles. Listed below are just some of the auto repair services that we offer:


Alonso's Auto Repair is your best bet for a quality inspection. Worried about a squeak or shimmy? Let us check it out!


We always use the most advanced diagnostic equipment to diagnose your vehicle problems and check engine lights.


We take all auto repairs seriously. That’s why all our auto mechanics are ASE Certified and work with our service advisors to give you as many options as possible. 

  • Axle / CV Joint Repair (FWD)
  • Brakes: Standard or ABS
  • Clutch Repair
  • Electric: Batteries – Sell and Install
  • Electric: Electrical and Electronic Systems
  • Electric: Starting and Charging
  • Engine: Diagnostics and Performance
  • Engine: Service/Repair – Major
  • Engine: Service/Repair – Minor
  • Exhaust Systems
  • Heating and Air Conditioning
  • Preventive Maintenance
  • Preventive Maintenance: Severe Schedule
  • Quick Lube and Oil Change
  • Steering and Suspension
  • Transmission: Automatic Service/Repair – Minor
  • Transmission: Automatic Service/Repair – Major
  • Transmission: Manual Service/Repair
  • Radiator Replacement
  • Axle / Driveshaft Repair (RWD, 4WD)
  • Differential Repair
  • Diesel Engine Systems
  • Four Wheel Drive Systems

Just Some of the Many Vehicles We Service

Here at Alonso's Auto Repair we service most major brands of cars and trucks. 

Car Care Tips

Tire Rotation

Regular rotation helps extend the life of your tires and improve performance. 


Change your oil at regularly schedule service intervals for a healthy engine


Screeching or grinding sounds from your brakes can mean trouble. Make an appointment with us to get a brake inspection


A loud muffler may not just be annoying, it can be dangerous because harmful exhaust fumes may be leaking into the passenger compartment

Tire Pressure

Proper air maintenance will give better gas mileage, avoid irregular wear and extend the life of your tires by thousands of miles.


Maintaining proper oil and coolant levels can help ensure a long life for your engine


"I never felt uncomfortable or as though I was being taken advantage of as I have in the past at other places when they see a "young girl" come in who clearly has no clue what the heck is wrong with her car. I would definitely recommend them to anyone out there looking to get their car serviced. You guys are AWESOME!"
Facebook Review
Ashley B
"Good honest people still exist!!  Eddie and his technicians were able to diagnosis my vehicles breaks and physically show my the issue causing my breaks to make noise. Eddie told me it should still be under warranty and it was. So I have to take my car back to the dealership. They did not charge me a dime. I cannot say enough how relieved I am to find a trustworthy auto repair shop..."
Yelp Review
Joy G
"Being a woman it's great to find a mechanic that you can trust. I drive over 50 miles to bring my cars for any type of repair or service. At the beginning I would compare prices, but I have realized that I can't find a better price and I can't compare the service. I recommend them to everyone!"
Google Review
Ashley B
"I love this place. I've been going to them since i've been driving and my parents have gone to them since i was small. We're like family. They are very honest and trustworthy. We send him customers all the time. Best place ever!!!!!! I Will never go to those high priced, dishonest dealers..."
Facebook Review
Bernice R
"This place is ABSOLUTELY as good as it gets when it comes to car repair. Very reasonable rates. Not once have I gotten get the feeling that I'm being nickle and a matter of fact, it feels like Alonso is looking out for the welfare of my wallet as much as I am. Bottom line: as long as I'm living anywhere near, I'll never take my cars anywhere else."
Yelp Review
Larry M
"The reviews for this place don't lie... they are also very innovative! I've received emails from them thanking me for my business which include the mileage at my last visit, which I consider to be very convenient. There are too many business out there who have not caught up with the times, thankfully this one has. They are friendly, fast and trustworthy - so I'll definitely be coming back!"
Yelp Review
Kwikster K
"This is the first review I've left on Yelp, and I simply can't think of a better place to leave my first review than Alonso's! Alonso and his team, after hearing my concerns, gave my car a thorough check and it turned out that my worst fears had not been realized... I seriously have to commend these guys for how meticulous, honest, patient and reassuring they are. Thank you, Alonso and team!"
Yelp Review
Xuan Y
Alonso's Auto Repair rocks! Alonso is a super laid back guy and not pushy at all. We went to Alonso's Auto Repair because it got such great reviews on yelp. It turns out, he deserves it! We got excellent service! He was able to accomodate our schedule and was realy sweet about it. He was super thorough with the inspection he gave, and he did it for a very reasonable price. I would highly recommend his shop!
Yelp Review
Jennifer L
"As a chick that knows NOTHING about cars, I am always super afraid that I will be taken to the cleaners and told I need $$$ repairs that I don't actually need. But I got my car tuned up in a very short time and was not bombarded at all with "oh I think you need this too" or "this is about to go, you better fix it fast!" Nice to know I have a reliable place to take my car =D"
Yelp Review
Sabrina T

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Contact Us

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General Information

Alonso's Auto Repair
1820 West 11th Street
Upland CA, 91786
(909) 946-0543

Shop Hours
Mon-Fri: 8am-5pm
Saturday: 8am-12pm
Sunday: Closed

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Or perhaps you would just like to schedule an appointment. If so click the button below. (Note: the appointment is not confirmed until you receive an email response from us.)

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