A Topline Smog Star

(562 reviews)

Seriously the fastest place to get smogged! Hardest part is finding them tucked in behind the car…read morewash. In & out in under 20 mins wo an appointment-- I will ALWAYS go here! V kind ppl too.

I got my smog done here and it was the fastest place I've ever been to! They got me in right away…read moreand were so efficient. The waiting area was very clean and the mechanic was very friendly and professional. I will definitely be back with my other vehicles and for future smogs.

Pomona Smog Test Only Center

4.7

(72 reviews)

I like Chuong very much. He hard work and do very fast. Good…read morework Fast service Any thing they told you

So nice and very affordable! I didn't have to wait either. My husband went too and we'll definitely…read morecome back.

Super Service of Pomona Valley

(718 reviews)

Incredibly friendly, knowledgeable, and helpful! I needed to have my brake pads and rotors…read morereplaced, which they did very quickly and efficiently. Only thing I didn't love was that I didn't know agreeing to things over the phone counted as a binding contract - there were a couple issues that I did not necessarily want to address at this visit, but by saying "okay sounds good" when given the total estimate over the phone, I was locked into them and couldn't have them removed. Overall, though, this was a very good experience - a bit on the pricier side, but excellent service!

I will definitely recommend this place for your auto needs. The staff is very friendly &…read moreknowledgeable and honest. Fair pricing and they explain everything to you before hand. Thumbs UP!

Nene’s Test Only

(20 reviews)

Waste of time. I stopped by three times and was unable to get serviced…read more The first time I stopped by they were closed, and it was during business hours. The second time I stopped by the person behind the counter told me to come back in an hour because the person who does the smog test wasn't there. I stop by an hour after (and for the third time) and was told they are unable to do my smog check because they are not star certified, however their website says they are star certified. It was annoying dealing with them. I wish they would have told me they couldn't do the smog check because they are not star certified since they did look at my paperwork before telling me to come back in an hour.

Awesome service no waiting today ..Sergio very helpful ..polite great day .. in and out fast no…read moreproblems .. will return highly recommend ..Customer for 10 years .. Thank you!!Merry Christmas guys stay safee..Happy New Year!! 2021

Montclair Smog Check Center

(59 reviews)

Messaged at 8:50am Quick response…read moreArrived at 9:15am Completed at 9:50am Quick and worry free experience Highly recommended

Clean, honest, and quick smog service. I brought my vehicle in for a star certified smog check. I…read morehighly recommend this business. They are knowledgeable and work with high integrity. Thank you very much!!!

ABC Smog Test Only

4.0

(98 reviews)

I have been at this location so many times for a Smog Check. The quality of work is above anything…read moreI have visited before. The owner goes beyond just a smog check. He always is so helpful with other things. i had a problem with my key fob. The value of his work is amazing. The turn around time is amazing when he is doing the smog check. The best part of this there is always a coupon to save you money on the smog check. Coming to this location for a smog check makes my life so much easier. Thank you again.

Extortion $150 for smog check and it increases after 2:30 pm when they list 24 hour service avoid!!…read moreAnd call around to find a 1/3 cost service

Ontario Smog

4.9

(196 reviews)

Excellent service was out in like 20 minutes will definitely be back would definitely recommendread more

I came here for a smog and honestly had one of the best experiences I've ever had in the years I've…read morehad to get one. Daniel was running the whole show by himself (juggling four cars at once) and I still got out in 20 minutes! That man deserves a raise! He was super friendly, efficient, and had me laughing with his Wienerschnitzel hat that said "I wieners." It was $40 out the door, and I came on my husband's recommendation (he's picky about car stuff). Now I'll be recommending them too. Fast, friendly, and fair pricing.

Manny's Smog

5.0

(125 reviews)

Well worth the drive from Diamond Bar. In and out in less than 20 minutes - 10 minutes for the test…read moreand less than 5 minutes for the paperwork. They don't need your DMV paperwork because they look up your records via your license plate. Best of all was the price of $30 - most places can charge you twice as much.

My husband just came back from getting my car smog test here. First, they are open on Sunday!…read moreGreat! Price is accurate at 29.75 and the certificate for 8.25! Best deal which includes a car wash. Quick and easy. That's all you really need to know and my hubby said the guy was super cool and personable.

Purrfect Auto Service

4.0

(372 reviews)

Mohammed is very knowledgeable and extremely friendly. Came in for an oil change and other services…read morewere recommended...and when I said I would com back later for the other services, he didn't push the sale instead he provided recommendations for what to do in the meantime. I later came back to get one of the recommended services, it took a few hours so I left and he called me every step of the way to update me on the status of my car. I recommended him to a few friends and he gave them fair prices along with a discount! It felt nice to come to a mechanic place where you can feel the trust Support local businesses!

I love this place ! Muhammad and the other workers are super helpful and reliable. I went in to get…read moremy suspension checked and they were super communicative and made it easy for me to understand what was going on. I would really recommend this place to anyone who expects good quality work and open transparent communication.

Foothill B Smog Check

(32 reviews)

Guy was cool and quick with the service. Reasonable price. Close to work for me so, I'll be back.read more

This location is great!! We have used this place multiple times, professional, great location and…read moreonly takes a few minutes. Highly recommend.

JC’s Mobile Automotive Air Conditioning Service

4.9

(64 reviews)

Prompt and got our AC working for our 2005 Honda Pilot. JC was communititave about the issue and…read morewhat he needed to do. I would highly recommend him if you need your AC checked out.

Everything went smoothly. He communicated clearly that an earlier appointment was available, and he…read morecame over at the time decided. The service went well and my AC is nice and cold again.

Akram Auto Electric

4.7

(99 reviews)

Every single shop wants to charge arm and a leg this guys been in the business for way to long and…read morekeep low low prices with good quality parts They rebuild my alternator I trust this place highly recommended

Beware! Made an appointment, showed up on time, charged me $140.00 to change a brake light and…read morecheck to see why I had engine light on. He turned off the engine light, which turned back on 4 hours later, He said I had not made an appointment and is why he was charging me this amount. Went to another mechanic and in less than 5 minutes hooked up my car to his hand-held machine and told me why exactly I was being notified about engine light and what part needed to be ordered and and charged me "zero" to tell me that! I highly recommend to NOT COME TO THIS MECHANIC as he takes advantage of people by overcharging ridiculous amounts of money.

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7 reviews that are not currently recommended

The reviews below are not factored into the business's overall star rating.

Hawk C.

0

3

0

3 years ago

This afternoon, I had my car's smog check done at this facility, and I couldn't be happier with the service I received. From the moment I walked in, the owner was friendly and efficient. The facility was clean and well-organized. The whole process was quick and hassle-free, and I was on my way in no time with a passing smog certificate. Overall, I highly recommend this smog check station to anyone in need of this service. The proprietor's professionalism, expertise, and friendly demeanor made for a truly positive experience. read more

David C.

0

35

26

1 year ago

Good price, easy to communicate and very nice job. Freddie came to my home to complete the windshield replacement. It took him less than an hour to complete it. Very professional! read more

Haly H.

23

118

37

6 years ago

Went in as a "walk-in" today and he was done super quick and easy. No wait and affordable for my mom's car. I will go here again in the future for my other cars as well. read more

German M.

5

9

4

7 years ago

I was at AAA La Verne and I needed a Star Smog Check. Found this place 1 Block away. Fast, Clean and Convenient. Thanks again. I will return for my next smog. read more

Francisco A.

2

18

1

5 years ago

Please with the service. I was in and out in less than 10 mins. No wait and fast service.

Charles E.

2

15

10

4 years ago

Always coming back to Topline Smog. Fast, friendly service. In and out in a few minutes.

Miko C.

Elite 22

99

208

1

5 years ago

Wow, I was in and out within 5-10 minutes! Excellent service!

A Topline Smog Star - smog_check_stations - Updated August 2026

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ABC Smog Test Only

4.0

(98 reviews)

I have been at this location so many times for a Smog Check. The quality of work is above anything…read moreI have visited before. The owner goes beyond just a smog check. He always is so helpful with other things. i had a problem with my key fob. The value of his work is amazing. The turn around time is amazing when he is doing the smog check. The best part of this there is always a coupon to save you money on the smog check. Coming to this location for a smog check makes my life so much easier. Thank you again.

Extortion $150 for smog check and it increases after 2:30 pm when they list 24 hour service avoid!!…read moreAnd call around to find a 1/3 cost service

Foothill B Smog Check

(32 reviews)

Guy was cool and quick with the service. Reasonable price. Close to work for me so, I'll be back.read more

This location is great!! We have used this place multiple times, professional, great location and…read moreonly takes a few minutes. Highly recommend.

Nene’s Test Only

(20 reviews)

Waste of time. I stopped by three times and was unable to get serviced…read more The first time I stopped by they were closed, and it was during business hours. The second time I stopped by the person behind the counter told me to come back in an hour because the person who does the smog test wasn't there. I stop by an hour after (and for the third time) and was told they are unable to do my smog check because they are not star certified, however their website says they are star certified. It was annoying dealing with them. I wish they would have told me they couldn't do the smog check because they are not star certified since they did look at my paperwork before telling me to come back in an hour.

Awesome service no waiting today ..Sergio very helpful ..polite great day .. in and out fast no…read moreproblems .. will return highly recommend ..Customer for 10 years .. Thank you!!Merry Christmas guys stay safee..Happy New Year!! 2021

Quality Auto Service

(72 reviews)

I had a very frustrating experience here and would not recommend this place…read more I went in for a smog check, forgetting that my battery had died the day before. Instead of explaining that the vehicle likely wasn't ready for testing, they went ahead and ran the smog anyway. The test failed because multiple system monitors hadn't completed, and they immediately reported the failure to the DMV. On top of that, the technician accused me of having my catalytic converter swapped out illegally, which was completely unexpected and honestly insulting. I've owned the vehicle for years and have never had any work done on it. He even offered to show me, but then wanted to charge me just to put the car on the lift -- which reinforced my feeling that everything here is about money. After the failed test, I was told I still had to pay because they spent about 30 minutes on it. From my understanding, many places don't charge if the vehicle isn't ready and fails for that reason, so this didn't sit right with me. To make matters worse, their payment system wasn't working properly when I tried to pay electronically, which just added to the frustration. The technician then got visibly irritated with me for being unhappy and handed me off to another employee instead of resolving the issue professionally. Overall, the experience felt unprofessional, transactional, and lacking basic customer service. Charging for a failed test, reporting it when the vehicle clearly wasn't ready, and then getting frustrated with the customer is not how you treat people. I'm sure there may be a response to this, but this review reflects my personal experience.

This place, owner and employees are a total rip off .they so-called diagnost my car but couldn't…read morefind the problem and still charged me for nothing or couldn't tell me what was wrong ,them told me start with the computer brain I bought a brain took back to them,and they tell me I'd have to buy from them. What a bs shop.I pushed me car down the road to another shop.they fixed it for$120 dollars, while these clowns charged me $165 dollars for nothing. I would never recommend them to anyone, thumbs down

Foothill Quicky Smog

(562 reviews)

Seriously the fastest place to get smogged! Hardest part is finding them tucked in behind the car…read morewash. In & out in under 20 mins wo an appointment-- I will ALWAYS go here! V kind ppl too.

I got my smog done here and it was the fastest place I've ever been to! They got me in right away…read moreand were so efficient. The waiting area was very clean and the mechanic was very friendly and professional. I will definitely be back with my other vehicles and for future smogs.

A1 Upland Smog and Registration

(123 reviews)

Had a great experience here. The tech was professional, knowledgeable, and took the time to do…read moreeverything properly instead of rushing through it. He explained what he was checking and made the whole process smooth and straightforward. You can tell he actually cares about doing things right and helping customers, which is rare. Really solid service and good energy all around. I'll definitely be coming back and recommending this spot to others.

Went in for a smog check service. A1 Upland Smog was quick,…read moreaffordable, and professional. I paid $45 for my vehicle, which is a great deal compared to most places around here. The gentleman who helped me was kind, respectful, and efficient. The whole process was smooth and stress-free. Highly recommend!

Advanced Auto Smog Check

(59 reviews)

Amazing experience my guy was official…read more Did the inspection on a rainy afternoon before closing thoroughly and was very helpful. Glad I passed and hope to see him again. He knows what he is talking about in my case and I'm grateful I found him (via Yelp btw).

Don't be deterred by Lupe's abrasive and taciturn personality. He's a misunderstood genius. He is…read morethorough, fast, and fairly priced. But be respectful and courteous. He will take care of your car.

Z Smog Check

(107 reviews)

I love love love that's it's really clean in here. Many people think it's not important but to me…read moreit is.

Couldn't remember where I had gone but we were able to find it and I'm so glad we did! We had an…read moreexcellent experience last time and this time was no different! Super receptive service! Price I'm happy with and he made it so easy! I'd suggest anyone come here! Didn't have to bring anything in, just asked for the smog and he took it from there!

Arrow Smog & Test Only