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Alonso's Auto Repair

Average Score
Overall Rating 4.9/5Overall Rating 4.9/5Overall Rating 4.9/5Overall Rating 4.9/5Overall Rating 4.9/5
4.9
(260 Reviews)
91
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Score Details

Last 30 Day Trend

Active Business

ReScore Reviews

ReScore
Overall Rating 0.0/5Overall Rating 0.0/5Overall Rating 0.0/5Overall Rating 0.0/5Overall Rating 0.0/5
Original Review
Overall Rating 0.0/5Overall Rating 0.0/5Overall Rating 0.0/5Overall Rating 0.0/5Overall Rating 0.0/5
0
Total ReScores
-
ReScore Average
91
Net Promoter Score ®

Business Details

About

We are expert auto service repair professionals you can trust! We are family owned and operated. With over 23 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
We are expert auto service repair professionals you can trust! We are family owned and operated. With over 23 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 23 years.

Services:
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
Tire Repair and Installation 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
...more

Categories
Auto Repair, Car Maintenance, Oil Change
Contact
(909) 946-0543

Business Hours

Mon
8:00 AM - 5:00 PM
Tue
8:00 AM - 5:00 PM
Wed
8:00 AM - 5:00 PM
Thu
8:00 AM - 5:00 PM
Fri
8:00 AM - 5:00 PM
Sat
closed
Sun
closed
* Pacific Time (Us & Canada)
1820 W 11th St Unit E Upland, CA 91786
Alonso's Auto Repair's Reviews
Overall Rating 4.9/5Overall Rating 4.9/5Overall Rating 4.9/5Overall Rating 4.9/5Overall Rating 4.9/5
4.9
(260 Reviews)

JA
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JORGE A.
Montclair, CA
Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5
02/20/2025
verified customerVerified Customer
10
Alonso and team have helped me twice now
They are busy but always have capacity. This place is run well.

LH
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Letisia H.
La Verne, CA
Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5
02/18/2025
verified customerVerified Customer
10
Fix car sensor problem
Great customer service and great job.

SS
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Sarah S.
Claremont, CA
Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5
02/15/2025
verified customerVerified Customer
10
Great Place to Take Your Car
Alonso's is great! We had both of our cars back within a few hours and the price was right. I highly recommend comimg here for your car needs.

CD
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Cynthia D.
Upland, CA
Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5
02/10/2025
verified customerVerified Customer
10
100% Satisfied
I recently had repair work done on my vehicle and it was my first visit there. Navy, the sales rep was so great as well as the other employees. Very kind, courteous, professional, caring and above all honest! I will definitely be using them for all of my car repairs & maintenance in the future and referring them!

LW
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Lexi W.
Upland, CA
Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5
02/07/2025
verified customerVerified Customer
10
Quick and friendly service for a check engine light
My check engine light came on recently and Alonso’s was able to get me in quickly and get my car back to me in just a couple days. They were upfront with an estimated quote, but ended up charging us less than anticipated! Overall very friendly and easy to reach via phone. The mechanic was kind enough to break down the cost of everything, from parts to labor and was very transparent so you know exactly what you’re paying for. Everyone in the front office was super nice and I highly recommend coming here!

OS
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OMAR S.
Rancho Cucamonga, CA
Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5
02/04/2025
verified customerVerified Customer
10
Simply splendid
Two thumbs up for Alonso’s auto repair. Good price and an awesome job , thanks again you guys I will definitely be back when I need a good mechanic!

Verified Customer
Upland, CA
Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5
01/15/2025
verified customerVerified Customer
10
Good service
Polite, fast service and affordable.

JS
Jim S.
Upland, CA
Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5
12/19/2024
verified customerVerified Customer
10
Headlight replacement
In n out under an hour
Excellent customer service
Cheaper than most places

FA
Frank A.
San Bernardino, CA
Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5
12/18/2024
verified customerVerified Customer
10
Finally found a shop that is profesional, experienced and honest!
Finally found a shop that is honest experienced, and profesional. Took my 2002 Chevy Avalanche Z71 4x4 for a problem that couldn’t be fixed by other mechanics. Alonzo’s shop did an amazing job. The truck is running great and the price was decent. Great friendly people thank you NAVY for your kindness, guidance and support and most of all your willingness to work with the prices. Definitely will recommend the shop to anybody and will be coming back again.
Thank you, Navy in the shop happy holidays!

NV
Nancy V.
Baldwin Park, CA
Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5
12/05/2024
verified customerVerified Customer
10
Great
The service and the people who work there are very knowledgeable and friendly

PR
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Patty R.
Pomona, CA
Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5
12/04/2024
verified customerVerified Customer
10
All over examination
The staff and mechanics were very courteous and inspected my car from top to bottom better than my local dealer would. The cost was not too high and I was very pleased with their service.

YC
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Yislien C.
Upland, CA
Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5
12/03/2024
verified customerVerified Customer
10
Very good
The service is excellent

XC
Xavier C.
Ontario, CA
Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5
11/22/2024
verified customerVerified Customer
8
Retired resident, Ontario Ca
Very nice clean shop, employees very polite and courteous.very reasonable prices,will definitely be back for more maintenance for my very old vehicle.thank you so much.

GM
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Gabriel M.
Riverside, CA
Ford Pickup
Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5
11/14/2024
verified customerVerified Customer
10
10/10 service
Did a great job transporting my truck would highly recommended

Verified Customer
Upland, CA
Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5
11/13/2024
verified customerVerified Customer
10
Great service
This was my second time at Alonso’s. They do great work

Displaying Review 1 - 15 of 260 in total
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