Great service very friendly always very quick in and out. We will definitely be coming back.read more

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.

It's my first time to get smog at A1. The guy is so accommodating and he did it fast.read more

On Monday, July 13, 2026, I had to take my 2012 VW Jetta in for an oil leak. Even when I take my…read morecar in for routine maintenance, I always have a great experience with Milts service garage. The staff is always friendly, professional, honest and from start to finish Milts always completes the work needed in a timely manner. Before they started the job of fixing the oil leak, they took time to explain the work needed clearly, and perform the service needed in a timely manner, as well as making sure my car was running smoothly before I left the service garage. I appreciate their expertise, and their attention to details. I highly recommend Milts service garage to anyone looking for reliable, trustworthy, and high-quality car care service.

Milt's is a hidden treasure. Took our 2006 vw we just bought there. Jazz the manager took charge…read moreand explained the diagnostic process and the estimated cost. They kept the vehicle for 2 days, and we're able to find we had a blown fuse, and replaced it. All done...

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

I have come to smog dog for years with each of our cars. It's always fast, efficient, and friendly…read more This morning I pulled up right before opening as I always do. He arrives right on time. Then he proceeds to sit in his car just waiting. He literally waited me out until I left. I sat there for about fifteen minutes thinking he was just fininshing up a call or something but nope, he was just sitting there in his car. When I finally pulled away, he got out of his car to open up. I, in the other hand, headed over to SG Smog Check at 205A Couch Street where I received excellent and efficient service at an excellent price. I left them a five star review on yelp.

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.

Integrity means something, in business as in life. Not only did I get fast, friendly, competent…read moreservice from the young tech at the counter, but I got generous support from the owner. When I left the shop around 2:30 today I forgot my backpack which had my work laptop, chargers, portable power bank, and keys. By the time I realized my mistake the shop had closed for the rest of the weekend (they close at 3:30p on Saturdays and reopen 8a Mondays). I called and left voicemails, emailed and texted, hoping to get the owner to return to the store and restore my bag to me. She called me within 2 hours, agreed to meet me at the shop at 7p, arrived promptly and retrieved my bag, all with a pleasant demeanor and smile. And the contents of my bag were I disturbed. I'm so grateful I picked a shop with honest people. I'll definitely return to this shop for my future smog test needs. I highly recommend and encourage you to try them out. Thank you Lisa!

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

These guys got me in and out real quick and had great customer service. Id recommend for anyone…read moreneeding their smog checked!

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!

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.