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Auto Squad Repair
- Technology
- Price
- Job
“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 Car AC Repair near Diamond Bar, CA
We have 2 specialists in Diamond Bar on file, and both are on this list, along with 22 from towns including Covina (3, 7 mi), Pomona (2, 5 mi) and Glendora (2, 10 mi).
12 open weekends · 22 rated 4.5+
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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Main Auto Care
“Unlike some places around town, I have never had anyone here try to upsell me on unnecessary things, and I have never had to bring a vehicle back because something was mishandled.”
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Harvey's Autotech
“Everyone else in the inland empire was a hassle to schedule a brake and lamp inspection by phone and they replied by email not long after I reached out and it was well after-hours.”
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Import Auto Clinic
- Fair
- Vehicle
- Mechanic
“I have been wanting a Land Rover for almost 2 decades and hesitated to purchase one due to this make's reputation for being both being high maintenance and also not the most reliable.”
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Karta Motorwerks
- Vehicle
- Prices
- Warranty
“When later my engine shut out on me due to a manufacturer error, I had originally taken my car to Atrak and his team and they were able to figure out the problem and do their best to assist me until the warranty asked me to take my car to the Kia dea...”
Listed for drivers in and around Diamond Bar, CA, these 24 shops list air conditioning work. What each one says about leak testing, recharging and which refrigerant it handles comes from its own website; ratings and quotes come from public reviews.
Area overview: Diamond Bar, CA
The 24 specialists on this page are rated from 4.2 to 5.0 across 6,040 reviews; 23 have 50 or more reviews and 22 are rated 4.5 or higher. When customers rate these specialists on specific qualities, they most often praise professionalism (76%), value (61%) and punctuality (55%). The topics that come up most in reviews of the specialists on this page are "fair", "honest" and "diagnosis". 12 are open on Saturdays. The services the specialists on this page list most often on their websites are oil change (3), wheel alignment (3), auto repair (2), brakes (2) and smog check (2). 6 list staff certifications (ASE) and 10 have a BBB rating of A or A+. 20 have ten or more years of experience, the longest 88 years. 9 offer financing; 3 give free estimates; 11 are family- or locally-owned and 14 list coupons or special offers. We have a website on file for 22 of the specialists on this page; 15 publish a contact page; 9 list a public email and 7 take bookings online. We count these figures across the specialists on this page; distances are straight-line, and hours and prices change, so confirm the details with the specialist before you visit.
Which shops listed for Diamond Bar offer a free check?
3 of the 24 shops on this page say they give free estimates. For air conditioning that usually means a quick look and a vent temperature reading. The gauge test and leak trace are the part that actually finds the fault, and those are normally charged.
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Pomona Tire Pros Repair Shop
“I rolled in with a flat as they were rolling the doors down and they saw my situation and rolled the doors back up and provided the service I needed to get me rolling again.”
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Comtires
- Brakes
- Truck
- Future
“I really feel this is a great place to service your car, there prices ane very reasonable, and the customer service is great, and they get the job done right, I would say you can trust them, 😀 …”
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Nutech Auto Repair
- Mechanic
- Job
- Diagnose
“I was treated so amazingly that I immediately felt the honesty and sincerity of what my father “may he RIP” is what a great Mechanic and establishment should be”
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Hye Tech Auto Repair
- Vehicle
- Honest
- Fair
“The team here can seriously work miracles if you are patient and willing to trust their process trust me I know not having a car is hard but having a temporary fix and more problems down the way is worse if you ask me!”
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Quality Car Care
- Team
- Mechanic
- Jack
“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
- AC
- Prices
- Trust
“Couple weeks later, my car died (unrelated to what they fixed), I called them hoping they had a tow service- the actual owner and his wife left the shop and drove out to me, tried to fix it in the parking lot, called me a tow.”
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Morrison Tire Inc.
- Job
- Work
- Truck
“I've had work done here on my car for general maintenance and got top shelf service from pulling up to talking about what I need all the way to talking about price and options to keep the cost as low as possible.”
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Bertino Automotive
- Vehicles
- Price
- Truck
“They quickly diagnosed and addressed a problem that my two prior mechanics couldn't resolve, and took the time to show me how to fix & maintain it in my own.”
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Fullerton Auto Repair Clinic & Body Shop
- Honest
- Price
- Truck
“They were the only ones willing to give a quote online, and while they found more issues during inspection, the part that they were replacing was actually due, and the price they charged was at fair market price!”
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Abco Diesel
- Price
- Truck
- Vehicle
“ABCO Diesel took the time to explain best ways to make the badly needed repairs, all the repairs were done in a timely fashion and are always willing to go the extra mile to make sure I was happy with each repair.”
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Save On Auto Care
- Oil
- Vehicle
- Brakes
“They took me same day, gave me a full rundown of what they believe I need to repair the issue I am having with my car, gave me the price right up front before doing any work, and they had it done and ready for me by lunchtime.”
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Aamco Transmissions & Total Car Care
- Job
- Vehicle
- Auto Shops
“Hank went to exceptional lengths (too many to list) to make me whole again and kept me informed and updated on what was going on including Aamco going to the vendor with their data & their tech to ensure the aamco tech inspected & tested the new part...”
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Pomona Body and Paint
- Insurance
- Price
- Body Paint
“Repairs were done nicely and the car feels good as new, everything aligned super good overall really great genuine people that are willing to help, awesome vibes too I'll be going here from now on.”
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T&K Auto Repair
“My power windows wouldn't go down and my crankshaft position sensor was out, I went to a few shops around Azusa and they kept telling me it's the fuse.”
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Jerry's Brake & Tire Pros
“It's our first time going here because we'll be having to change tires within three-four months which we'll be coming back because our friend works here.”
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Wayne's Automotive
- Mechanic
- Vehicle
- Oil
“Very honest upfront service and quotes did an awesome job give me my recommendation for future maintenance I was in and out of there in an hour and a half to two hours they did an awesome job I'm a returning customer I will be returning for future se...”
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Certified Automotive Specialists
- Gene
- Job
- Inspection
“Though I moved out of the area for a short time, I've never encountered anther shop as efficient, knowledgable, customer oriented & genuinely a pleasure to do business with!”
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Associated Automotive Service
“I want to give a BIG THANK YOU TO CRAIG for his knowledge and Professionalism in repair Ing my A/C unit and mostly his honesty means alot and goes along ways will be highly recommending him to my friends thanks again CRAIG will be bringing my oth...”
Auto A/C & Heating Services in Diamond Bar, CA Cost Estimates
Minimum cost
$158
Maximum cost
$2736
National Average
$369
$158
$842
Average price range is based on 388 cost profiles
Why these companies made our list
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