I brought two of my cars here and they'll always provided great service. This last time I visited they took me in last minute as a walk-in and did an ac service on my car. They're knowledgeable with older cars as well. read more

Leo the owner was able to help me right away with a complicated replacement of my AC condenser for my hybrid vehicle. It's not an easy job and the dealer would charge big bucks . Back on the road with AC blowing cold. Recommend 100% :) read more

Professional, explains their work clearly, does the job right, and stands by their work.

Super quick, fair price, great communication. I'd absolutely recommend and come back. My AC had been gradually getting worse for the last year or two, so I called in. Leo was quick to respond, explained everything they'd be doing, so I brought my car in for diagnostics. Quick call back, he explained what parts of the AC system needed repair and why, the cost breakdown with parts and labor, and answered questions I had about the other options for preemptive maintenance. They fixed the AC, it was an easy pick up and my AC works great again. read more

Excellent, honest service. Leo, the owner, and Michael, one of the technicians, were direct, no nonsense. The air conditioner in my 2007 Rav R was blowing warm air. I took it to a Toyota dealer who RECOMMEND REPLACING HIGH PRESSURE SIDE AC LINE at a cost of $1591.00. Looked on Yelp and found One Stop Auto Air Conditioning & Electrical in Pasadena with 4.6 Stars (156 reviews). I called and Leo thought they could do it for less and recommended I bring it in. I did. They confirmed the leak and repaired it in a couple of hours for a third of the Toyota estimate. Not only that, but because I was didn't have anyone who could come pick me up, Leo moved me ahead of other cars waiting, including a Bentley, and got the job done in a couple of hours. Leo asked me to bring the car in to him if I had any problems, and he'd take care of it. My air conditioning is blowing cold! Just in time for summer, which is going to be a hot one. Can't recommend them highly enough! read more

A bit rude over the phone. I don't think a business should ever assume you don't know or understand how automotive parts work. Sounds a bit shady. I will take my business elsewhere. read more

Leo and his crew have helped me on numerous occasions and each time they have gone above and beyond the call of duty. When they could have charged me extra for a tough to get part they found a way to fix it and make it work. That's what makes a place like this exceptional. Thank you. read more

I took the 2021 Toyota Tacoma for electrical work, Leo and his team were very professional and took care of the wiring to fix the lights. I was happy with the service. I would recommend them for any electrical or A/C issues. Previously they fixed a broken window that would not roll up. Make sure to make an appointment as they are always busy. read more

This place is amazing. Leo and staff is super friendly and was able to meet all my ac needs. He was able to also explain everything that was wrong with my compressor as well. Definitely highly recommend this place if you have AC issues with your car. read more

I would really recommend One Stop Auto Air Conditioning, really professional and knew exactly what was the problem! Leo and his team was quick and precise in the repair! Very reasonably priced and didn't take advantage of us not knowing anything about AC repair. I would definitely give them 5 out of 5 stars! read more

Leo was great. Had my car in there at 9 am and it was done by 3:30 pm with a new AC compressor. Not inexpensive but reasonable considering parts cost and labor. read more

what can I say? there's a reason why they have so many good reviews. they do a great job, they don't take forever and they're nice people. highly recommend this place. they fixed an electrical issue with my back lights that were ALL not working, in one day, and they all work great now. read more

Literally right around the corner from me and Leo was very easy to work with. Found a compressor for me that's getting more and more difficult to find for my 1991 Alfa Romeo Spider. Converted the car from R12 to R134a and now I have nice cool air in my vintage car. Leo is no nonsense and turns around cars quickly. Bring on the summer heat! read more

They suggested a hard reset for my car issue and told me they wouldn't be able to help with that since they don't have the equipment. They suggested I go to a nearby repair shop that does, so just for being honest and helpful, I gotta recommend the place. read more

Came in 8 am, had a new compressor and working A/C by 3pm. Other shops refused my car because it was too old and a foreign brand. Couldn't be happier with experience. The parts and labor came with a one-year warranty. read more

I can't say enough good things about this shop! What should have been 3 to 4 day long job ended up being done in just a 1 day and a half--I was honestly shocked at how fast and efficient they were. Leo was amazing throughout the entire process, keeping me updated every step of the way. He didn't just tell me what needed to be fixed--he educated me on the process, making sure I understood everything. He even provides a PHOTO PROOF! That kind of transparency and communication is rare in auto repair shops! Beyond that, they are extremely fair and generous. I got estimates from other places, but this shop went above and beyond, proving that they truly care about their customers, not just making money. From the moment I met Leo, I could tell he was honest and cared more about his clients than making an extra buck. He always guarantees that his guests and clients feel safe and comfortable, which is something you don't always find at mechanic shops. You can tell these guys have a real passion for what they do. A lot of people don't realize how hard it is to be a mechanic--fixing complex problems while balancing a high volume of customers is no easy task. It can be a lot of pressure, but they handle it like pros. If you're looking for honest, skilled, and fast mechanics who actually care, this is the place to go. Highly recommend! read more

Leo at One Stop Auto AC & Electrical was friendly, reliable, and responsive! He came as a recommendation for my mechanic, Hrant at Hrant Auto Services. Leo's team are seasoned mechanics that did a great job with my 2013 Toyota Prius C. Thanks, Leo! The auto shop is set just off Foothill Blvd on Vista Ave, roughly a block west of Sierra Madre Blvd. There's a small, but relaxing waiting area. By why hang around when there's plenty to do a few blocks south along Colorad Blvd. If you've got choices, then choose One Stop Auto. read more

Let me take you back about a year and a half ago. I bring my 2018 Honda Civic in because it's blowing out warm air. I've brought my previous car in to Leo and they seemed professional and about as honest as you can expect from an auto shop. He told me that the Civics around my year have been having AC problems (wish I knew that before purchasing my car but oh well) so he would take a look at it to try to figure out the problem. They don't take too long, maybe 45 minutes to an hour and tell me that it's a condenser and compressor problem and to fix would be $1600. That's no small chunk of change but it was in the middle of summer and it just needed to be done so what was I going to do? They end up "fixing" it and my car is cool again. Not. Only a few months go by and what do you know, warm air again. I bring it in and explain to Leo the situation and he says he'll take a look at it. They said they would put in a special dye and put in some freon and to wait until it blows out warm air again. A few months later it blows out warm air and I bring it in and now they say it's an AC evaporator core leak. The quote: $1600! I'm not about to get it "fixed" again only to have some other part go wrong and pay more money. You would hope that one trip would be all it takes to get it fixed (with a new car you would hope no trips tbh) but this whole situation really bothered me and made it seem like they were just out to get money. I'm sure there's a little part of me that understands that they're just doing their job but I feel like they should've tried to look for all leaks the first time. Maybe I'm just the world's unluckiest car owner. But fool me once, shame on you. Fool me twice, shame on me. I ain't getting fooled twice, I'm just going to be AC-less thanks to One Stop. read more

After, 2 other shops, failed or ripped me off. One Stop Auto AC came through and fixed my AC. Highly recommended!

Took car there based in recommendation from our mechanic Hrant in Pasadena who I trust and use for my cars. Look him up if you need work done. Anyways, Leo took in my 1998 Toyota' 4Runner and diagnosed the AC. During the process, he sent me pictures of the mess. This truck served duty on three of my father's ranches and critters had made nests inside the system, which is common. I will post the pics to show what they had to do. The AC hasn't worked in years. You'll see why. The work wasn't cheap and there's good reason for that - it was a mess!!! A day and a fraction later, its blowing cold as ice and we are thrilled. I believe in supporting local business and hard work. Expensive yes, but well earned. They had to tear 1/3 of the car apart to do this job. I recommend them 100% read more

Was recommended One Stop Auto by Hrant to fix windows that would not roll down. We spent $1500 the first time (May 2021) to replace all 4 window motors and to get a new car battery. A week or so later, the windows stopped working again. Life got in the way (covid, pregnancy) and we did not bring the car in again until November 2021. He "fixed" the window, then it stopped working again within days. Brought it back December 2021. "Fixed," stopped working within days. Finally brought it back in April 2022 (at the very end of the one-year warranty) and he finally fixed it for good (well, 3 of the 4 windows work consistently - 1 gets stuck. He only replaced the 1 window motor that consistently does not work). According to them, for the initial repair (in May '21) he was sent a faulty window by Subaru. At the end of the day, is it his fault that we was sent a malfunctioning window? No, of course not. But it IS HIS FAULT that it took FOUR TRIPS for him to finally realize the problem and fix it. (I should add that, when I visited in December '21 during the height of the omicron wave when there was an indoor mask mandate, he did not wear his mask inside his office) (I should also add that, when I called to schedule a time to bring my car back in the 2nd or 3rd time, he casually said "Bring it by tomorrow morning!" When I showed up, he said "We're busy today, come back tomorrow." UGH) Two stars only because he ultimately did fix the problem and the warranty made all of the additional trips free. Would not recommend or use again. read more

Awesome service, quality work! Came with a wiring problem in my car and got it back couple hours later.

Leo and his team were total professionals. I had questions after my heater core was replaced on my 2001 Silverado. Leo is very responsive and understands the work he does very well. I recomend these guys any day. read more

The car's air conditioner was not cooling. I contacted 5 Auto repair shop. Mr Leo was very polite in answering all my questions and gave two alternate solutions to pick from to set the AC right with pros and cons. Very helpful. Now I can be comfortable in the scorching heat read more

Called about an electric issue they said it was too long of work. No one seems to want to work anymore.

My alternator died on my way to work to a point where I lost power steering. Leo was quick to set up a call to discuss the problem and gave me a reasonable quote. I was able to drop off my car with Mike before noon and it was ready by 3:30p. They replaced my alternator, put air into my tires, and checked all systems were good. I definitely recommend this place if anything in your car needs to be fixed. Everyone was nice and service was quick. Thank you, Leo and Mike! read more

Leo took care of my new to me Miata immediately giving me cool air with a year guarantee. Great service, price and communication.

One Stop Auto A/C really is one stop! I dropped my car off before the Christmas holiday (amazing) because my A/C stopped working. In less than a day, OSA found a crack in my radiator that was causing the A/C compressor to fail. After giving them my extended warranty companies phone number, they took care of the rest. It took a long time for me to get my car back but that was 100% my extended car warranty companies fault. They were probably spending more time calling people about their car's extended warranty than checking in on my claim (kidding but not really). Once my claim was approved, my car was fixed in 2 days. I would definitely recommend OSA to anyone who is having issues with their car's A/C or cooling system. read more

Hell the f**k no! Complete scammers!!! Was referred here by Hrant because my break lights weren't working after taking my car in to get the breaks changed. Guy at hrant tells me that my break lights weren't working which was a complete surprise to me. Being that I never actually see my break lights go on while I'm driving he has me stand behind my car while he hits the breaks and sue enough, nothing... So I go over to this place with a friend of mine following me in case I need to leave my car for a while. When I get there this guy takes a look and tells me I need to leave my car with him overnight. I'm honestly not getting a good vibe from him and I swear there was nothing wrong with my break lights before bringing my car to Hrants. So I tell him I'm good. I'm just going to bring my car to the dealership and have them fix it. Now at this point the guy suddenly gets confrontational with me. Telling me don't be ridiculous, dealer will charge me way more. Now I really don't like his attitude and I insist on him giving my keys back so I can just take it to a dealer. He goes and gets another guy and they speak in a different language for a minute. Then the guy I'm talking to gets down and does something around my break pedal then tells me ok it's fixed.... They really did not want me to take my car to the dealer. I'm sure they were afraid the dealer would tell me they were trying to rip me off. As soon as I insisted they give me my keys back he suddenly knew exactly what was wrong with my breaks and fixed it in less than 2 minutes. These mother f**kers are running a straight up scam! I'm super pissed at this point and go back to confront the guys at Hrant at which point the owner gives me a full refund for my breaks He swears the guy that worked on my car there was new and that his normal guy was away. I don't know if he was telling the truth or if this is some setup they have but my friend witnessed the whole thing. DO NOT TRUST THESE GUYS! read more

Clearly, I can appreciate how many of One Stop A/C customers have experienced excellent service. Bluntly, anyone who give this shop less than 5 stars is not willing fully understand the value of an expert shop. Not only have I had my car (Cayenne Turbo S) A/C serviced, but I had an issue with my RV - Moto Moto A/C performance. Leo's definitely knowledgable and was always available to answer my questions. Top-Tier service! Keep up the good work guys... read more

One Stop Auto Air Conditioning & Electrical - Auto Repair Near Me - Pasadena, California

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10/10!!! Brought my car in because my AC stopped working and left it for the day to be diagnosed. Got a call a few hours later from Leo, what a sweet man. He kindly explained to me what was wrong and why they needed to do A,B,C. He was very patient with all my questions and so helpful... just so damn nice! Which as a woman taking a car to an auto shop, is not always the case, unfortunately. I opted not to get the work done as it's a little out of my budget right now (and this is on me because I didn't really do my research on ac repairs) but I highly recommend this shop for the customer service and respect alone! Leo even waived my diagnostic fee, like the Angel he is, and told me to save it to put it towards the repair whether it was with him or someone else!!! There are still honest/good people in this world and Leo is one of them! read more

TLDR: great business, fast, quality work, good prices. A little over a year ago I realized I had a small leak in my ac system. So I went to autozone and bought up some triple AC sealer and put it in my car's AC system. I followed instructions but a few days later going to drive my car, my AC system wouldn't stay on. It kept clicking and turning off. So I searched and called around a few places and the owner here was really straight forward about the risk of the sealer products. I was planning a big camping trip and I needed my AC ASAP. So I took my car into the shop and dropped it off. They had to clean/flush out the whole system because the sealant acts like a heavy glue. They also needed to swap in a new condenser and compressor. They had my car back to me the end of the next business day. AC has worked great ever since. So very happy. So a little under the year mark I was noticing some dirt and oil build up at the condenser coil connector so I took it in. They fixed me up and changed the seal for me and I haven't had a problem since. I will 100% go back to this shop for any AC needs. Thanks again guys and great work. ** keep your receipts (or at least a photo) and don't be afraid to call back IF you do have any issues. 1 year warranty on the job in my case. Great guys and great service. read more

Leo was extremely helpful in getting my ac in my Honda back to blowing cool air. I was pleasantly surprised how efficient the whole process was. My air conditioning hasn't been working the last couple of months and being in Southern California that is extremely painful. I contacted Leo via yelp messaging on Thursday night...he responded right away and even told me I can drop off my car the next morning before they opened to accommodate my work schedule. I filled out the paperwork and left my keys with them. Throughout the day I got calls from Leo updating the status of car. When I left work Friday afternoon my car was ready and I was rest assured with a 1 year warranty. I highly recommend this place. read more

One Stop Auto Air Conditioning & Electrical - Auto Repair Near Me - Pasadena, California

Great work. I called Leo and he said he had a cancellation, got me right in. He found that I had a bad A/C compressor on my F150. A few hours later I drove out of there with nice cold air blowing again and on a hot day at that. I highly recommend Leo and his crew as I was thoroughly impressed with his communication, his polite way and his professionalism to boot. Thanks for being there to help me out yesterday! read more

I will 100% be going back to visit Leo at One Stop. Very grateful to have been referred to his shop from Hrant - the service at One Stop is very accommodating, reasonably priced, and fast. Most importantly my A/C is ICE COLD and ready for the summer! read more

First...when it comes to specialized jobs, take it to the specialist that know the ins n outs of their craft. Our AC went out on our 2014 Sienna with 55k miles on it...we took it to our mechanic of 7+ years who is great at what he does, general mechanic work...but the AC he couldnt figure out...we need our van for the family and I found Leo and his team on Yelp. They took it in at 10am and had it repaired and done by 5pm. Compressor, condensor, expansion relay, chemical flush and it was blowing even better than before. Leo and his team were very friendly, extremely knowledgeable and confident in their work and expertise. Thanks Mike. We truly appreciate their prompt work and customer service. Leo kept in constant contact with me regarding my van and I highly recommend them if you have any AC issues. They also do electrical work but I can only speak about their AC work. Last, don't cut corners when it comes to areas of specialization...go to the experts and have them take care of it and do it right the first time. Thank you One Stop! read more

One Stop Auto Air Conditioning & Electrical - AC problems. Bring it here! - Auto Repair Near Me - Pasadena, California

My air conditioning was taking too long to get cold. So I went to these guys to have the coolant drained and replaced. They quoted me a reasonable price for the service so I told them to do it. They drained the coolant and told me they had tested the system and I had a leak somewhere. I asked for an explaination of how my AC could have worked fine before the service but now had a leak all of a sudden. He didn't have one. I told him to just fill it up with the coolant (as we had originally agreed to), and to put some dye in it to pinpoint the leak location (if there was one). There was no leak! Most likely faulty equipment. This would have needlessly costed me at least $100 dollars extra for the service in order to find the leak. I didn't even get an apology. 7/31/2020 Follow-up - After being contacted by them afterwards, I received an apology in subsequent conversations, and was told that they have asked the company that they got their machine from to "recalibrated" it. It's been 6 days now and my AC is still working fine. read more

Fixed A/C fast, soon and within budget for a reasonable price. xxx. Xxxxxxxxxxxxxxx

Thank you so much for your help! Being without an AC in the middle of summer is not fun! I called so many places before someone referred me to this location and was able to get the problem fixed by the end of the day! Thank you LEO for having such an efficient team. :-) read more

I have an old 1988 Mercedes 560SL and wasn't sure any mechanic would want to take it in to diagnose my broken A/C. Leo and his team were able to diagnose the simple problem of a bad A/C pressure switch caused by the Aux fan not operating properly. They swapped the switch and got me back to my car in under 2 hours. Great service and communication and I'll be glad to be back again for any A/C issues. read more