Just did a smog test with them. As the same as 10 years ago, great service, nice people. I called ahead of time before going and there is no wait for the test. Greeted nicely by the employees, and in and out within 10 minutes. It's situated next to the auto shop, adjacent to the Arco gas station. You can get into the Arco gas station and it will be at the back corner. They do have a few chairs and coffee for you to wait. read more

I've used Longdon Test Only Smog station a few times now. Always excellent service, always timely, fair prices, and the people who work there are professional, very qualified, and friendly. Particularly Armand. Recommend them without reservation read more

Always get my cars smog test or star test done here. Family owned business and always friendly! Never disappoint! read more

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I've been coming here every year, for the past 11 years to get smog test done for my car and my wife's car. They are so friendly, efficient, and super professional! The owner always greets you first. I highly recommend!!! read more

I've been going there for years. My kids now go there, the owner and family are very professional, courteous, and welcoming. I just took my truck back to this establishment today. Again great service as always. read more

This place is the best. Came in to smog a car with a dead battery. Other places told me it would take 80-200 miles of driving to reset the computer from a dead battery. Chris told me to drive it around for 15 minutes in traffic and then took it around for 5 minutes and worked some magic on it. Boom. Saved me hours of driving, not to mention the cost of gas. If you want an honest, knowledgeable shop then look no further. This place is it. Also shout out to Armin for being super chill too. read more

I called around for a smog check and was told, "if you come here now, there's no waiting". Yes! We were about 10-15 minutes away. I'm not exaggerating when I say if we were literally three SECONDS earlier, we'd have pulled right into the bay, but one car slipped in ahead of us. Which was no biggie because as we waited, we witnessed one of the strangest, most entertaining, yet mocking cocktail of weather dances I've ever seen. It wasn't just sudden onset of rain, thunder, lightning and hail. It was RAIN! THUNDER! LIGHTNING! HAIL! You follow? In any event, it was nothing if not entertaining. And mercifully brief. So that car ahead of us was out of there in about ten minutes and *we* were subsequently on our way home in just ten more minutes. Sweet. And then... after three + years of the pandemic (and other issues) resulted in a period of Bart's (my car) immobility... this beloved little 2002 Honda Civic SI hatchback with a laughable 83k miles on him was ready to return to the road.(Why, yes, I AM bragging.) ;o) I can finally exhale. I don't remember the two tech's names who performed this service, but they rock. They were kind, young, personable and about as UNslimy as your usual car guys can be. Like actual normal people! lol Thanks, Longden Test Only guys! You made this such a smooth, relaxed experienced! read more

I've used this business several times and have never been disappointed. It's located behind the Arco, at the west end of the work bays. They work quick, and the prices are reasonable. There is a place to sit and wait while they work on your car, but by the time you get comfortable, your car will probably be done. They wore masks and asked people to social distance while waiting. Again, they work so fast that there aren't too many people waiting outside. They do ask you to wait in your car if they are currently smogging another car. I will continue to use this business-they are reasonable and quick. After getting a smog check you can go to the Rosemead DMV to renew your registration via kiosk (never a wait) -if they submitted your info the sticker and registration card will print right there. If not, they will mail it to your address. read more

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Chris and Armin were very sweet and helped run a smog test. They helped me out during a very stressful situation. They helped change a tire after I hit a curb on the way in. They were so kind. Thank you for everything!!! read more

Longden Test Only - The mechanics, Chris and Armin did a quick Smog test and helped change a tire! Great work thank you! - Smog Check Stations Near Me - Irwindale, California

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I highly recommend this business. German and Armin helped me. They were both friendly and efficient. You can tell they take pride in their work. They work together and tag team to get you out in a reasonable amount of time. There was a women before me who had to go home and get her wallet and German let me know that I would be after her. I respect that he honored that space in line for her. I waited no more than 20 minutes for the whole process. THEY CAN GET BUSY. I went on a Monday after 3pm and there were about 3-4 people waiting before me. Overall, this is a great location to get your smog check done. read more

When I got my old 1977 van I didn't realize what a headache it would be to smog the thing. The previous owner did a number on the system. I was such a newbie to cars when i brought my van in and over the course of a year I went in a few times to learn what parts I needed to find. What was fun about my experience is I would go in and update the guys in the shop about my journey and they were excited about things and this encouraged me to keep going. After replacing my smog system, and getting a new carb, it was exciting to have the experience of passing my smog test. I had a great experience with these guys. read more

Super fast and friendly service - in and out in 10-15 mins. They take walk-ins for smog check.

I needed to have a smog test ASAP and the place I usually go to was not available until later in the week. They referred me to this place. Easy in and out. Quick testing. Good to go. Friendly fast service. Easy to find. read more

Talk about excellent service! Armin took care of my smog test and was not only quick & efficient, he was friendly and knowledgeable about the other service questions I had. Next time I need a smog test this is the only place I will ever go! If I could give 6 stars, I would. read more

Came here for a quick smog check after waiting for 2 hrs at the last joint to find out thrs at least another 45 mins before they touch my car. Yelped around and found this joint with no wait. Cruised down and came across the cool kid that did my smog check. Talked about lifted trucks for a few mins n jobs done. Super fast. Super smooth. Everything done at a good price. Peel out. read more

I was recently in need for a smog check around the area. I had never done something like this before (adulting is hard), so I turned to the handy dandy Yelp app and found my local smog check shop. Since this place had the highest reviews, I decided to come here. This place is located by the Arco (good place to get gas as the price is cheap). They're the second stall in that building, right across from the Arco car wash. The process was seamless. I pulled up my car and mentioned I was in need for a smog check. Told the guy I found him through the Yelp app, so he allowed me to use the check-in offer, which was a $10 discount! Within 10 minutes, I was out of there! Thank you, Longden Test Only for making this an easy task for me! read more

Quick Smog check and friendly service! I always come for all my smog checks and no hassle or bs! Highly recommend! Thanks

Armin helped me out last Saturday, Great guy. Usually go to a place closer to home, but good thing they were closed. I'm used to a 1-2 hour wait for smog checks, but I was in and out around 10 minutes here. New go-to for sure read more

Took my 1995 Dodge Ram V10 here to get slogged. Their pricing was reasonable, and they got the job done. I highly recommend LTO.

I've been bringing my cars here for several years and the service is great. The staff is always polite and helpful.

What's the big deal about getting a smog that I need to write about it? It's a boring topic, like getting cavities filled. So I chose this place because it's next door to RPM, a great place my friends raved about, and also this is a Star Smog Station. ( check your DMV notice ) Came on a weekday around noon, pulled in and I'm the only customer. The guy working that day came over and got me set up. Then we started chatting and it turned out to be a cool conversation about many things like when we quit smoking, old cars ... etc. It made the time go by faster. I get the feeling he didn't mind having another human to talk to. So ... I passed, was on my way. Good service, got what I needed and was helped by a super cool dude. Sure, I'll go back. read more

Longden Test Only - There's a couch and a massage chair, in case you get stressed out waiting for the smog. =P - Smog Check Stations Near Me - Irwindale, California

Came here for smog check. No appt needed and I didn't have to wait at all. Was in and out within 15 min. They were very friendly and professional. Would come back again for all my other smog checks. Their price is reasonable not hidden fees! read more

Armen helped me with smog checks for both my cars and I was in and out in 10 mins or so. Great service and very courteous. Been going here for years cuz they're so nice and are efficient. It helps to call first, they honor their appointments. It's a popular place so it could get busy, but if you need to wait there are covered places to sit and wait. I'll be back again next year! read more

This is my go to spot for smog check. In and out in less than 30 mins. These guys are friendly and quick.

I love this place Chris very fast and good service I have been here for long time for doing all my car smog test all our car Chris he very nice and helpful I always come back here again and I'll would recommend to all my friends and family too !! Thanks. Chris !!! read more

Longden Test Only - Smog check place - Smog Check Stations Near Me - Irwindale, California

Great customer service here. I am always thanked on arrival and departure. Nice folks. Since 2015, this is the only place I bring my car to.

Quick and friendly service! Have been going here for some time now and always fast and efficient.

Super quick and easy , friendly service thank you !!!! Def recommend if you need a smog test

Be sure to check in for the deep Yelp discount! (It's around 50ish and goes down to $40 for smog check). They're fast, reliable and nice. No complaints, they do business as it should be done when it comes to test only. read more

Steve at Russ VW recommended Chris. I called and asked him some questions and he answered them fully. Luckily, he just opened so he started right away. A very friendly man and his lovely female assistant (not sure who she was). My car passed and I was on my way. They had chairs to sit and snacks and drinks available but it was so quick, like 5-10 minutes that I didn't get a chance to use or consume them. I highly recommend going to them! read more

Excellent service and pricing-if you need a smog check look no further than Longden Test Only!

Just went in for a smog check and the service was excellent! Don't go often for smog tests but it was a quick and pleasant experience。 The prices are better than most places and the tech was super helpful! Definitely recommend this place in you live in the San Gabriel Valley. read more

I ALWAYS take my vehicles here!! Chris and his crew are Awesome! Always profressional and very reasonably priced... Should be first stop for your smog needs... Nice comfortable lounge area with snacks and beverages... Thanks Chris! read more

This is one of the best Star Smog Test station, I came here at least with 5 cars already, the father and son business, they are caring and super friendly. I came in with a Honda needs to get recall done before new registration, the owner (father) reminds me couple times to bring recall paper and smog check certificate before go to DMV or AAA. so nice of them. read more

Fast and quick. There was one person ahead and I was able to be in and out in 20 minutes flat. Remember to do a Yelp check in for $40 deal; otherwise, it's $50. It's a family run business and the couple who run this business is incredibly sweet and friendly. Support a local family business! read more

First time doing a smog check here :) Chris is super kind and informative. Service was quick, came on a Monday afternoon around 5:00 pm with no wait. Another bonus is that the shop is next to a touchless car wash. :D read more

Honestly, words will never describe how great this business is. They are the best and they are full of not only knowledge but the kindest people I have met. I will ALWAYS come here. And will ALWAYS have nothing but GREAT things to say. Please come here, you will NOT regret it. read more

Been coming here for years. Chris is really nice & the smog check never takes more than 15 mins! Highly recommend this place to anyone looking to get a fairly priced smog check & excellent customer service. read more

I've been bringing my vehicles here for years and have always had a great experience. They provide excellent customer service, their prices are reasonable, and they work really fast. I highly recommend coming here for your smog check needs. read more

I return here every two years for my smog test. They are professional, treat me with respect and get the job done quickly for a good value.