Had to get a safety check for my car and was referred here. Great service and highly recommend.

Very clean and fast, respectful service. I came here for a smog check since it was close to my docotor's office. I appreciate their service.

Best place for smog check! Don't go anywhere else. Super quick service and awesome customer service! Thank you Sona.

This is my go to shop for smog tests always done quickly and at a reasonable price. They have all the proper scanners for advanced diagnostics, and always a wealth of information on every vehicle I've ever brought here. When some of them have needed major repairs -- since there are three master technicians -- always done in a reasonable amount of time and only with top quality. You can tell a lot by just looking at the shop, so many auto repair facilities are filthy and parts and garbage is everywhere but NOT here. Everything is clean and well organized and the waiting room is comfortable. Complementary bottles of water are available. You can just tell that Sona takes great pride in his business, and making sure to provide the best experience for his customers, and I am super happy to be one of them! read more

Great fast service. When I came here I didn't have an appointment just drop in and he did the smog check super fast and reasonable.

I have used this shop for the last 10 years. I do both my personal and church vehicles. Sona (owner) is as delightful to work with as he is professional. The costs are not the cheapest in town, but reasonable and the work is reliable. I do smog checks here as well. I usually plan ahead and drop off veichles early and get the quote same day. Repairs the same day (or a day or two later). Hard to find this kind of a small business delivering this kind of service, so I whole heartily recommend Clean Air Auto Repair in 2024! read more

I am very empressed and pleased with this very clean and honest mechanic. This morning I needed my smog checked, Sona found some issues that would've failed the test, he corrected it at NO charge and passed the smog test. To me, it meant a lot. If you have any mechanical problems, this is a good place to know. read more

See all

I came here on a recommendation from my old mechanic and Sona did NOT disappoint. He was very honest and gave me a quote before starting the work. The labor rate is the going rate and he knows his stuff so I will definitely be bringing my vehicle back. read more

I found Clean Air Auto Repair through a friend of mine. The owner, Sona, is an awesome mechanic and just all around nice guy. Prices are extremely reasonable, his quotes quite exact. . They helped me right away. My car was parked at his shop for over 3 weeks and he did not complain. Definitely will come back here again! read more

I came in for a smog check. I called Monday morning and I was able to bring in my car same day. Friendly service and quick.

Sona has done it once again! He never fails to impress his customers. I went to have my oil change without an appointment first thing in the morning. Him and his technicians discovered that my rear rotors/break pads needed to be changed quickly. read more

Very efficient, super kind, and extremely professional. The mechanics in this shop are really really good at what they do.

I have used clean air auto repair for a few years now. Sona (the owner) is always present, knowledgable and helpful. I have taken multiple cars to them (European, Japanese and American) and always walk out feeling that I will get quality service at a fair market price. What I appreciate most is their honesty and being very communicative and upfront, Not a trait found in very many mechanics these days. read more

Took my car in for steering issues. When I returned to pick up my vehicle, I was told the clutch was fully blown. Never have had clutch problems with my vehicle. On my drive home, I experienced burning smells and now a loud humming noise when driving. It is very apparent that something was done to my car to force a repair. This issue has been reported to the Bureau of Automotive Repair. These are the dishonest individuals that give auto repair shops a bad name. This is highly unfortunate but will not be overlooked. read more

Came here for a smog check. They were nice, quick, and efficient! Called beforehand to see if they were busy and they told me that I could come in. They helped me right away and the smog check was quick. Definitely will come back here again! read more

I found Clean Air Auto Repair when I first moved here in 2015. The owner, Sona, is an awesome mechanic and just all around nice guy. Prices are extremeley reasonable, his quotes quite exact, the work and in the rare case something is not quite right he'll make it good. It's great to have the peace of mind to know that I'm never getting unnecessary work or will have sticker shock when i see the bill. Sona always goes the extra step for the customer... He'll offer to drop you off at home if you live nearby and your car is staying in the shop, or sometime lend me something I need for the car. He's also a licensed auto dealer and has purchased cars for me at auction when I needed a new car. Would highly recommend anyone looking for a mechanic that has both integrity and skill, and is always fair. read more

Sona was nice and helped me with a STAR smog for my car, really great service and kind guy. Definitely will be back.

Was having some troubles with the brakes. I called Clean Air owner Sona and he offered pick up and drop off service for no additional charges. He was prompt in diagnosis, offered services, estimations which was very reasonable, did the job and returned the car. He was not at all pushy, explaining the job needed to be done. My rear brake pads had to be changed and he only changed that. He offer few other basic services such as oil change and even cleaned the car inside out. read more

Sona Nagra did the smog on a potential old car I was buying. Really quick, knowledgeable, and efficient. Would recommend!

Dude gonna tell me my car janky and "special people like me," are never satisfied. An extremely poor excuse for the trash work they did over a year ago. Which all ended up failing, resulting in me having to shell out another 1,000 dollars. Last time I was in there they literally had one mechanic, these guys are giving out rush jobs and overcharging people. When you inevitably realize what you came in for isn't fixed you'll probably end up taking it back, and they'll find a new problem on top of what they already didn't fix. An just like that more of your time and money is being wasted. That's the game! Please protect yourself. Lol to sum it all up, these guys won't fix your car and if you leave a bad review they'll dm you a year later calling you broke. Even though you spent over 1,000 with them. You can't make this stuff up. read more

They were Fast, friendly and professional! I highly recommend for anyone looking for a smog. Can't go wrong for $60. East in and out read more

Clean Air Auto Repair - Smog Check Stations Near Me - Castro Valley, California

Wonderful place love it . Always honest and on time. Always there to help you. Will always recommend.

Went in for smog service and routine maintenance. Great service, flexibility and accommodating.

We had an issue with our Volvo recently and our dealership said we had to go through a website through our warranty to get things squared away. I found Clean Air Auto Repair through the site, and it was less than 3 miles from our home, which was cool. We met up with Sona. He chatted with us for a bit, about what the problem could be, then left the car at the shop. He called us in less than an hour and we were on our way, problem solved. Sona was very friendly and responsive, and should we have any issues in the future (knock on wood) we'll definitely be reaching out to Clean Air Auto Repair again. read more

So took my Audi Q5 here for repair in July, blown gasket, so they suggested a rebuilt engine. They kept the car for over a week to do the job. Paid a lot of money for it! I finally get the car back and check engine light comes on, He said that it was okay to drive so I clear the code and light comes back on...this continues for 2months and finally the car starts to have a hard start, take it to the dealership this time and they told me there is carbon buildup which needs to be cleaned up hence the check engine and hard start, told me that before whom ever put the rebuilt engine in should have did some cleaning and checking on this first...needless to say not happy at all!! read more

Great place to get your smog check done. It was quick, easy, no line and no problem. I recommend them my go to place for my smog certification. read more

This is a great reliable repair shop! The owner, Sana is courteous and makes you feel like you are in good hands! Fast and friendly service. I highly recommend it for your smog and repair needs! read more

The staff here are very attentive and knowledgeable. Fortunately for me I had no line and no waiting, I have an older vehicle that takes a little more time period I am really happy to have found these guys on Yelp. All the reviews are accurate. I would highly suggest this as a smog and repair station. read more

Clean Air Auto Repair - Nice clean shop - Smog Check Stations Near Me - Castro Valley, California

Waked in without an appointment, and they were quick enough to get my smog done in 20 minutes despite being a busy day for themselves.

What an amazing experience! Professional, fast, knowledgeable, friendly, genuine! Sona is absolutely great! I would highly recommend this place! High quality service. Thank you Sona and the team!! read more

I'm highly recommend this spot. Great and consistent prices and amazing customer service. Best as far as price in the San Leandro/Castro Valley area for Smog also! read more

Great service! I had my break pads and rotors replaced. I really appreciated the service being done in the time frame I was quoted. Thanks again!! read more

Sona is a great mechanic with a great team of workers. They all do high quality jobs and treat your vehicle as their own. I've had 3 different cars serviced by him and he always keeps it 100% and doesn't waste anyone's times. I've had an engine replaced when my Range Rover had engine failure and my mothers van's transmission rebuilt. The work and quality speak for themselves because the cars still running great to this date. His prices are fair and he doesn't try taking advantage of anyone, if anything he genuinely try's to help you out because his exact words are, "I do this work because I love it and enjoy helping people". Now a days it's hard to trust a mechanic and if they'll do the job properly. I can say for a fact that Sona has never done a poor job for me and he is always willing if needed to correct any situation. His communication and professionalism are superb and you would have a hard time finding a better place than this man's shop. I hope my review helps future customers and this shop get some recognition. read more

I just wanted a diagnose but end up paying for a part I didn't even need and the part I paid for they mess it up but I had to pay for it. Once that wasn't the issue he found out it was the transmission. That's why I did a diagnose ‍‍‍ read more

Sona has been professional with all of my vehicles. Fast, clean and friendly service. I recommended my entire family! I appreciate his honesty. Thank you Sona! read more

So! as i do when i need to get stuff or stuff done, that i can't do. I lookup YELP!! and so i needed to smog the SUV. as i did find a few. what stuck out to me was ' Clean Air Auto Repair '. with a few very good and pointed reviews. i called them up , and Sona answered the phone. told him what i needed. and he asked if i could come in then. .like right then!! i couldn't so i told him i'd be in the morning ( today ). got there, the shop was clean with some cars being worked on. and he ( Sona ) came out to greet me! ok, with the phone call and this greeting. i'm feeling a lot better bout coming here. very nice, easy going i found him to be. and you kno what? He got right on testing my SUV! and then was done! done! i say! with the whole test and paper work. so yeah FAST!!! just his manner was great. and you kno what? he even printed out the firing order for my other truck!! So yeah i will be coming back. to get other work on my other cars as well. Thank you , Sona. read more

Good service took me in right before they closed! I would recommend them to anyone needing a smog check.

Just picked up a work truck and needed to get a smog test, Sona always on it, great customer service, reliable, and fast.

Everything is done safely and promptly. The staff is super polite and nice to talk with. Yee!

A polite gentlemen greeted me as I pulled up. He told me he had 3 people ahead of me, but he would get to my car in 10-15 minutes and that was accurate. They were quick and offered chilled waters in a clean waiting room. We used a $10 checkin coupon from Yelp which brought our total to $50. Great experience - would definitely go back! read more