Just had my 2014 Silverado smogged here by Mike. Very polite, professional, and quick. With one car ahead of me I was in and out in less than 45 mins. It's my 2nd time here and I'm very pleased with their service and tell friends and family about them. Thanks again, until next time! read more

First time here and all went smoothly. Very friendly, quick and efficient! I got my Toyota Corolla smogged and it didn't take long. Definitely recommend! read more

1st time to Grump's Smog. Friendly, fast, efficient & price unbeatable. Thank you. Definitely will come back. Truly 5 stars

The owner is ANYTHING but Grumpy. He's very fast and efficient. This is the only place I'll ever go. I was 3rd in line and still got back to work within my lunch hour. I highly recommend! read more

Great smog station. Been coming for a while not and they have great prices. The only reason I'm not giving it a 5 star is because the worker seemed inattentive and on their phone... read more

Best smog in town, fast and cheap, these ppl know what they are doing and do it right

If you have a 1999 or older vehicle, you need a smog shop with a dyno. Grumpy's was the best price I could find calling around in turlock. When I got there, dude was super friendly (Freddy). I was next after the current smog test and only waited maybe 10 mins until it was my turn. 2000 and newer are obdii tests where they just plug in a cable, so they're pretty quick. Dyno tests take a little longer of course but still a very efficiently ran shop! I was out of there in under 30 mins including waiting for the car before me. Freddy took the time to answer a few questions while he worked and didn't seem bothered by my questions or watching from outside the shop. When you receive great service, don't forget to tip a few bucks, it helps keep that service great for others. (I'm not affiliated with Grumpy's in any way, just a happy customer that was able to head off to safeway and use the dmv kiosk to keep up to date). Excellent, 5 star service! read more

Came here on at 4:00 pm in a weekday, when I arrived the gentleman informed me that the wait would be 45 min to an hour as there was 3 cars ahead of me. He was extremely friendly and offered me bottled water. Even though I had to wait, he was extremely friendly and even came in and talked to the customers inside as he was finishing up each smog. Joking about how he had to work on his birthday. The smog price was perfect for my budget and he service was excellent. I will be coming back here for future smogs. read more

Unbelievable!!! Tech asked a different customer to help him check my car!! Bad business ethics!! The other customer told the tech that he thought I had a problem with a head gasket due to smoke. Clearly unqualified and not an employee. Tech takes his word for it and failed my car! I went straight to a local shop in my town and it passed with no problem!!! This business was trying to take advantage of me for being a woman!!! I give you no stars!!!! read more

Wow, what a great guy. He looked over the car and found a hose that had a crack in it. Instead of failing the smog he showed me the issue, told me the cheapest place to get it, and told me to come back. We came back and passed. Recommended. read more

This is review is only for one of the tech. The first tech who help me was amazing. Diagnosed my problem and help me right away. The other tech lied about not being able to scan the paper for lowering the score. Instead decided to say he couldn't scan the dmv paper work because it lower their star point. Only made that excuse because one of his family or friend showed up after I came. read more

Very kind man. Needed a last minute smog check right before closing and he nice about it and was very professional too. I'll be back! Great value! read more

Quick, $45 with certificate, next to Alison' Cafe and polite good service. One of the lowest price if not the lowest in town.

Got in and out very quickly no long wait. The young man that done the smogging was very friendly. Took care of business in a very timely matter. Decent pricing . I have used GRUMPY' SMOG several times and I am always very satisfied. THANK YOU TO GRUMPY'S. SMOG. read more

Fast cheap friendly service I showed up right before closing time along with 2 others and we all were able to get our cars checked quickly

I was there last year for a smog and the check engine light was on when the tech pulled my car in, it failed. Went to another smog shop in Merced and they told me the check engine light needed to be off in order to smog it. Well why didn't the first tech from grumpy inform me of that instead of doing it knowing it wasn't going to pass and then charge me and then was going to charge me again to do it a second time. Don't go here, plenty of honest smog places to go! Not a fake review like the owner says just a rip off if you go there. This guy expects me to have a receipt from a year ago!!! Hahaha take me to court for slander I don't give a F*** you are a dirty smog place and I would go to any other place but yours. Learn how to treat customers and not pad your pockets!!! We can go back and forth all you want!!! You're a dishonest smog and just shut the hell up and take it!!! Don't go to grumpy because obviously he's grumpy when he gets caught cheating customers!!! Whatever you say Mr. Whatever your name is and I worked in Turlock at the time but lived in Merced so that's why I went to your piece of crap smog place. Have a great day Mr hormone or whatever your name is. I don't do fake reviews nor do I lie about what I've been told and I know when someone tries so hard to clear their name when they are wrong. I waited over a year because I let you guys do it and I'm not a smog technician so I didn't know the car wouldn't pass like you tech did. I now see why it's called grumpys because you are grumpy. read more

I needed to smog my car and drove up to Grumpy's. But the worker was anything but grumpy. He was very friendly and the whole thing only took 10 minutes. He had free water in the office/waiting room and the service was quick and easy. They are also STAR certified. Come to Grumpy's ! read more

Grumpy's Smog - Smog Check Stations Near Me - Turlock, California

I took my husbands truck in for a smog check, and because the battery had died, it didn't pass. The guy had me drive it for a day, and he tested it again for free the next day and it passed. I was so appreciative of his help and kindness. We will definitely use them from now on! read more

Fastest smog check I've ever had. There was no one ahead of me and the check itself seemed very quick. During my short wait, I got to pet the softest golden retriever ever who was hanging out with her "dad" at work that day, so I definitely picked the right smog place out of my many options! I usually care only about products/services and prices (nice people are a plus but not a deciding factor for me), but chatting with Hormouz about dogs and my new town was like chatting with a friend, and made the experience even better. He's VERY nice. I didn't know that my smog check would come with free dog-petting therapy + much-needed socialization during these tough and lonely times. Six stars. Thank you! read more

Although you only need them a few times, this is the place to get your smog done. It is super fast and pleasant. The waiting room is not the most attractive, but does not matter since you won't be waiting long. Prices are competitive. read more

Came in today for a smog. I was in n out in 10 minutes. Great service, Definitely recommend. Will be coming back

Needed my 1990 vehicle smog checked on short notice. Seems most of the other smog check businesses have faulty dynameters. Grumpy's took me as a walk-in and had me in an out in short order and didn't charge me an arm and a leg as several other businesses suggested.. Gentleman was very cordial and professional. Highly recommend. Will use again. read more

Friendly and great customer service we got in and out with no issues. Definitely the best place to go for a smog we will be bringing all our vehicles here! Best place to go in turlock! read more

The guy working was super cool got me in and out . It's nice to run into a employee with a positive attitude now days .. lol will definitely be back .. thank you .. read more

Fast, efficient, and very professiona service. Very good customer service. Great price!

Smog check's are the worst, and take a long time. These guys got me finished quick, I went over on my lunch break thinking it would take a whole hour, but they got me in and out. Also I thought i had gotten a discount or something, but it just happened that their prices are just really low. I am used to paying $60 a smog, it was almost half that. Overall it was a good experience. read more

Super fast and no hidden costs. Waiting room is okay, but I was offered a cold drink and the person helping me had excellent customer service. I highly recommend this business. read more

Went in on a Saturday afternoon and they were able to do my smog in 10-15 minutes. Great price and service.