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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
(269 Reviews)
92
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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
92
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
(269 Reviews)

Verified Customer
Riverside, CA
Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5
04/03/2025
verified customerVerified Customer
10
My gears wear shifting rough
I took in my truck because I felt my gears starting to shift hard so I had an inspection they did the inspection and it magically got better. I don’t get it but I’m not complaining, I’m definitely a loyal customer now lol.

JP
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JOCELYN P.
Rancho Cucamonga, CA
Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5
04/03/2025
verified customerVerified Customer
10
My problem was solved!
They’re very honest and kind. Since they did not change anything and just diagnosed the problem, they did not ask for any payment. I really appreciate their understanding since I don’t know anything about cars. God bless their business.

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
03/21/2025
verified customerVerified Customer
10
Excellent service
The guys at the desk and the mechanics are on point. I was in n out like promised

Verified Customer
Montclair, CA
Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5
03/20/2025
verified customerVerified Customer
10
Excellent service the shop was nice and clean, very polite and courteous
I recommend the shop for any type of service. I give it a 10 overall.

OL
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Olya L.
Upland, CA
Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5
03/20/2025
verified customerVerified Customer
10
Great customer service
As a women, i got treated with fair prices and with great customer service ! Thank you guys!

SP
SYLVIA P.
Upland, CA
Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5
03/08/2025
verified customerVerified Customer
10
Best experience
All the guys that work at Alonso’s are so respectful and polite. I had an emergency with my car and the fit me in without an appointment. They diagnosed what was wrong, fixed it and I was on my way. They even gave me a discount. The best part is I know the repair was done right because they are trustworthy.

KH
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KURT H.
Upland, CA
Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5
03/06/2025
verified customerVerified Customer
10
Great fast service
Had a coolant leak, problem was diagnosed (water pump) and repaired same day.
Price was at the low end of the average for my area.
Shop is run very efficiently.

BA
Brian A.
Rancho Cucamonga, CA
Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5
03/03/2025
verified customerVerified Customer
10
Came in for a smog check
Navy was very helpful on the phone and in person. The smog check was quick and reasonably priced. It was so smooth that I got a quote for other services on my vehicle. I’ll be back here for sure.

DC
Debbied C.
Upland, CA
Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5Overall Rating 5.0/5
02/26/2025
verified customerVerified Customer
10
Great service
Very fast service

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!
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