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Auto Squad Repair
- Expertise
- Brand
- Patient
“Even with exotic European car brands which other repair shop refuse to fix, he is very patient and tries to do research first before making any judgements!”
Best Transmission Repair Shops near Diamond Bar, CA
We have 2 mechanics in Diamond Bar on file, and both are on this list, along with 22 from towns including Rowland Heights (3, 5 mi), Corona (3, 17 mi) and Rancho Cucamonga (3, 17 mi).
11 open weekends · 21 rated 4.5+ · 2 show a license
Data verified October 16, 2026
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Diamond Bar Auto Service & Body
“The mechanic had a nose around under the hood and under the chassis, showed me the problem, reassured me that i could manage it until i got home to my regular shop, and declined any payment for his time.”
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Reliable Smog Saint Anthony Complete Auto Care
“Helpful and very friendly workers and from the name of the business it speaks clearly their the best The word trust keeping me stay with this shop and proud recommending to my friends and family.”
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Rancho Transmissions and Automotive
- Question
- Truck
- Mechanic
“After quotes from several other shops about rebuilding my transmission, I felt safe and like I wasn't getting ripped off because I am a woman needing car repairs.”
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Precision Import Auto Repair
“Michael, Yogi and the Precision Import Auto crew have been my go to for ALL of my previous Mercedes Benz automotive needs; this beautiful 2006 SL 500 that I recently acquired.”
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Harvey's Autotech
“Were honest and even though nothing ended up needing to be done to my vehicle (hence the honesty) they gave me a ride to and from my home to their shop to drop off and pick up my vehicle and gave me the peace of mind I needed.”
Listed for drivers in and around Diamond Bar, CA, these 24 shops work on transmissions. What each one says about rebuilds, warranty terms and the brands it handles comes from its own website; ratings and quotes come from public reviews.
Area overview: Diamond Bar, CA
The 24 mechanics on this page are rated from 4.3 to 5.0 across 6,390 reviews; 23 have 50 or more reviews and 21 are rated 4.5 or higher. When customers rate these mechanics on specific qualities, they most often praise professionalism (90%), punctuality (68%) and quality (68%). The topics that come up most in reviews of the mechanics on this page are "price", "honest" and "diagnosis". 11 are open on Saturdays. The services the mechanics on this page list most often on their websites are transmission repair (3), wheel alignment (3), auto repair (2), computer diagnostics (2) and oil change (2). 2 show a license on their websites; 6 list staff certifications (ASE) and 15 have a BBB rating of A or A+. Domain records put 18 websites of the mechanics on this page at ten or more years old; the oldest dates from 2000. 9 offer financing; 1 gives free estimates; 10 are family- or locally-owned and 16 list coupons or special offers. 1 has Spanish-speaking staff. We count these figures across the mechanics on this page; distances are straight-line, and hours and prices change, so confirm the details with the mechanic before you visit.
Do years in business matter for transmission work?
Ten or more years in business is claimed by 22 of the 24 shops here. Rebuild quality is hands-on skill, and a shop that has been in one place a long time is easier to hold to a warranty. It is what their listings state, not a guarantee.
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Imperial Tire Pros
“I've been coming to this place not just because it's around the corner but because they have helped me with nails in tires and helped me get an affordable set of tires for my wife's car.”
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Team Car Care
“After reading the reviews all the mostly positive reviews Repair Pal and then on Google, I decided to try them out because I was so used to taking my car to the dealership.”
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Integrity Transmission & Auto Repair
- Toyota
- Communication
- Job
“Integrity totally rebuilt my transmission using numerous replacement parts that are superior to the previous internal & external existing parts for a reasonable cost.”
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B & D Auto Repair
“I took my daughter's car to them with a major problem and instead of taking the opportunity, he called around to see if the repairs were covered under warranty.”
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Karta Motorwerks
- Labor
- The Future
- Mechanic
“We are palladium autos next door these people are amazing, they are checking more than 100 cars for us per month we definitely recommend them I also get my personal cars serviced by them”
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小李修車廠 KB Motor
- Patience
- Home
- Tech
“My car dropped to KB Motor for repair the left back side cover shell, they kept the car there for over a month and kept telling us the car will be fixed in the following week, but every week when we called, they kept pushing the dates to the next wee...”
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Alonso's Auto Repair
“A mechanic at Alonso's bought my Civic, and they did not charge for the diagnosis on the car or the 6 days it was parked inside (normally they charge after 3 days for storage).”
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Pomona Tire Pros Repair Shop
“As my tire was being prepped, I saw that Ricky took the initiative to check the tire pressure of the rest of my tires, minding the OEM recommended psi in the door jamb.”
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Sunrise Auto Care
- AC
- TV
- Check
“I get stressed about anything to do with my car but they make it so easy I've been coming to them since I needed my first oil change and haven't stopped.”
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Comtires
- Inspection
- Questions
- Job
“My battery died & I drove in (had to have a jump) purchased a Great battery with a 3 year warranty at a very good price & Added air to my low tires for free!”
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Nutech Auto Repair
- Battery
- Pictures
- Oil
“Told them what was wrong with my 2008 Chrysler 300C and they found the problem quick, they didn't try to say something needed to be replaced that didn't.”
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Craig Johnson Automotive
- Fair
- Diagnosis
- Truck
“He is honest, his work is extremely reliable and we can always trust that he does what is necessary and never will try to sell you something you don't need.”
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Community Tire & Auto Service
“A thousand thanks to the entire team of this company, they do an impeccable job, I am very satisfied and I recommend it to everyone, kindness, service and speed, thanks to each and every one of those who make up this team..”
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Yorba Linda Auto Service
- Mechanic
- Estimate
- Oil
“I have an older car, trying to keep it as long as I can, thanks to these guys, they are helping me keep my car running, they aren't about just charging exorbitant amounts of money if not needed, I trust them, thats a great feeling to have😊 …”
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Hye Tech Auto Repair
- Integrity
- Oil
- Mechanic
“I took my car in yesterday, I had it back today, and I am 100% satisfied with everything about the service, the customer service, the price, everything was great.”
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Quality Car Care
- Service
- Efficient
- Truck
“First of all I like to start out by stating that it is very neat clean and the owner JACK is very professional and very helpful and understanding to my needs great job.”
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Johnny's Auto Service
- Oil
- Compressor
- Prices
“Plus you can trust them because they are honest and don't swindle you in to fixing something that doesn't need it like others do or over charge for their services.”
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Bertino Automotive
- Choice
- Fair
- Quality
“The pride taken in the work is something that is hard to find these days and this shop doesn't try to pull any funny business like telling you that your car needs a new muffler bearing.”
Transmission Repair Services in Diamond Bar, CA Cost Estimates
Minimum cost
$842
Maximum cost
$3683
National Average
$1473
Avg Per Hour Rates
$135
$1158
$2946
Fair price range is based on 531 cost profiles
Why these companies made our list
What customers say about mechanics near Diamond Bar
- “The rebuilt transmission has a 3 year warranty- which is unheard of, that's how much confidence they have in their work.” — customer of Integrity Transmission & Auto Repair
- “Bryon's unwavering dedication to his customers and his craft is commendable, and it is why I wouldn't dream of going anywhere else.” — customer of B & D Auto Repair
- “Sal and his team are total professionals. I would highly recommend their business to anyone that has transmission issues.” — customer of Rancho Transmissions and Automotive
- “Integrity Transmission continues to impress and amaze me with their fabulous service, courtesy, timeliness and exceptional pricing.” — customer of Integrity Transmission & Auto Repair
Excerpts from public reviews of the mechanics listed on this page.
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