Im glad I took my truck here, great customer service! Smog tech and service adviser was very…read morepolite. I will be taking all my cars here for all smog. Will no longer bring it nowhere else.

If you're on Yelp trying to decide on a smog shop, then give All Star Smog a chance! My experience…read morewith them (first time, first impression) was great. We needed a smog done on short notice--I did a quick Yelp inquiry, the shop owners/staff messaged back quickly, and the next morning we dropped in. Went in Saturday morning--the (covering) technician was courteous, friendly, and professional all around, and we didn't feel intimidated as maybe you would at other shops. The technician (we didn't catch his name) was also very transparent, as he advised us on searching how to properly "drive cycle" our vehicle in order to reset the monitors after the first smog attempt read: "monitors not ready" -- DRIVE CYCLE? Yes, we learned something new that day! We prepared our vehicle to sit overnight, then did the drive cycle early Sunday morning right before returning to All Star Smog for the retest. Same technician was there and helped us out right at 9am. He also gave us a friendly recommendation for additional DMV services that we needed to complete. We all know that car services can most of the time be dreadful, but I can say that this was my best ever smog experience, between CA and NV. Thank you, All Star Smog!

Asked for pricing online and was quoted $48 special. However my backup car that doesn't get driven…read morevery much is very old didn't pass. They suggested that I pay the full price which was still reasonable so that I could come back within 30 days and be retested for free. I decided to do that. However when I took it back I hadn't done something that I needed to do, as far as changing a hose. So they told me I needed to come back again after fixing it. So once I did that I brought it back again and they tested to see if you ready and it wasn't. So I had to drive it around a little more. By the time I finally took it back again it was past the month point by about a week. They checked the codes and this time it was ready, and they showed me something else that I should probably get fixed on the car so it runs better (which I appreciate cause I had no idea why the car would sometimes misfire) they did not charge me for the retest. Friendly staff and good pricing. This is my new go to a smog place!!

I DID NOT LEAVE A 5 STAR Review!!!! They copy and paste! As…read moreI'm new to the area of Cordelia and right in the middle of either going to Fairfield or Vallejo as they're about the same distance, I sent out a quick project request for a smog check, to business to see what the costs are. SG smog check center got back to me pretty quickly and offered me a great deal that I could not refuse. I stopped by today and followed instructions and and showed the message to the front desk representative regarding the price. She unfortunately stated that they no longer do that price so I'll have to pay an additional $10. At that point I felt a little unhappy, but I'm already there so I need the service done. To my surprise when my car was finished with its smog, happy it passed, they honored and gave me the price that was quoted in the message. The facility itself is pretty quick. There were a few people in front of me, but it felt like I was in and out in less than 30 minutes from start to finish . I'll definitely use them again because the pricing was great and the efficiency and quickness of the people that work there are awesome. They are also STAR certified! I DID NOT LEAVE A 5 STAR Review!!!! They copy and paste!

Took my SMOG appointment and was ready for me on time. Operator went out of his way to show me a…read morebad hose in my engine bay. My time and my equipment were respected and I would definitely return for another SMOG check in the future. Pricing was competitive and I was done in a out 30 min, including the extra hose issue he showed me.

I've taken all my vehicles here for many years for smog, always been consistently very nice,…read morehelpful :))

Keith was stellar, listened thoughtfully to my situation with a dealership and provided honest…read moresuggestions over the phone given my distance away. I was more than willing to make the drive for their service but Keith instead recommended a closer local shop. I hope that means Milt's has more business than they can handle!

Milt's staff is friendly and knowledgeable. I was having some issues with dash emergency lights…read more They got my car into the shop fairly quickly and had most of the issues resolved in a few hours. I trust Milt's to service my vehicles.

Smog Dog is a drop-in only smog check service in Vallejo. I have been going there for years. The…read moreservice is quick, and easy. The serviceman Sergio is courteous and professional. I always have a good experience with Smog Dog.

I've been coming and referring my friends and family for years now . They are fast , takes about…read more10 min . Best price in town . I recommend driving your vehicle for a week or so before smog

Aside from mom & pop restaurants, 3rd spaces and good dramas, one thing I can always get behind is…read morea great mechanic that can take care of my car because I am running that thing all over the world. Vallejo Smog is quick and easy, especially when I need to get my smog before heading into work. The team is friendly, gives you an additional discount at check out saving me $10. Quick, easy, and they can take walk-ins.

Drove over to their old location to get a usual smog. And noticed the sign was gone. With a quick…read moreGoogle search he as able to find that they moved the plaza down the street. Apparently there was a fire at the location last year so they had to move. I'm glad they are still in business and not to far away. They are always quick and I'm usually in and out in around 15 minutes. Also check their website to see if they have any special promotions! They are the best in town!

Dominic was super helpful - direct, authentic, and super chill. Good price, attentive service.read more

Always always always bring my cars here. The parking is plentiful, the smogs are fast and the…read moreservice is friendly and professional!

I was referred to Jay and Automotive small my Brandan over at BNG tire. Very professional and was…read moreable to see me right away without weight that's a bonus. Very reasonable prices and they get you in and get you out. This is a great findto add to my collection of automobile support vendors

Knowledgeable shop owner and great service. This is where you must go if you want your car taken…read morecare of. Friendly and kind staff make you feel at ease. Thank you!

A. Open on Sunday B. Super friendly…read moreC. Fast and efficient What else could you ask for? Very satisfied.

Been going to this shop for years, but they're different now. Brought in a car for smog with all…read moreemssion systems passing, was failed for a small leak past the catalytic converter, this means there was no harmful fumes, just a little bit more sound. They also left the keys in rhe ignition which reset all emissions monitors, meaning you can't smog it again until you do a very complex drive cycle again. Never coming back. They already knew they were gonna fail you, and still screwed you over.

I had one of the BEST experiences today at Royal Smog and Mechanic. I got there around 8:50am, and…read moreI was in need of a headlight and brake light inspection. Sebastian was warm, genuine, extremely helpful and accommodating. The inspection took a few hours, but I knew I was in good hands. Upon my return, I met the rest of the team who were all welcoming. It was a blessing they were able to squeeze me in today, considering how busy they are. I'm recommending Royal Smog and Mechanic to all my friends and family, as they do a great job with all aspects of automotive safety and repairs.

At the recommendation of my father-in-law, I brought in my 2017 Buick Regal GS to address an oil…read moreleak, steering issue, and potential suspension issue. Prior to bringing my vehicle to this shop, I received diagnostics from a dealership and a major retail chain auto shop. Ultimately Royal Smog & Mechanic figured out the actual source of the oil leak was, found the source of my steering issue, and fixed everything within a fair amount of time. Communication was excellent and pricing was great. I'll be returning to get my brakes and shocks replaced within the near future. Overall, customer service is great, they provide high quality work, and I highly recommend this business.