I called ahead, and while they allow walk-ins, an appt was recommended. I was able to secure one…read morefor later in the morning. I planned to run an errand and head straight over, unfortunately I left my paperwork at home. Not knowing they could do the testing without it, I ran home and realizing it was already time for my appt, I called to let them know I was running late. Thankfully, the next appt was already there, so we were able to basically switch spots (them taking the current time that had been mine and me taking theirs). The woman in the office was so helpful and kind about it! I got there before the updated appt time while the vehicle before me was finishing up testing, and we were in and out like a flash after that! Very friendly, fast flexible service, and great pricing. All in all, as painless an experience as smog checks can be, would recommend!

I have been going to Smog Connection, Timm is the owner, for longer than I can remember. My car is…read more20 years old and every time a smog is due, I call Timm. I only have had one problem and it was a bad gas cap. Timm used a cap he had, told me I had to replace mine, and my car passed with flying colors. His price is reasonable and I am usually in and out of his shop in under 30 minutes. My only complaint is that he is a SF FOURTY NINERS fan. Being a RABID & DIEHARD GREEN BAY PACKER fan, you can see the problem! Thank you Timm for taking care of my car for the last 20 years. I will continue to support your business for as many years as I have left.

This place is a 10/10 they are very professional and affordable. My car has been having some issues…read morewith misfiring I been too a whole bunch of shops and out of all the shops, this one has been able to take their time to really figure out what's going on. They're super friendly as well. Definitely recommend coming here

AMAZING shop . Family owned and they are great people . Thank you ......great service . I would…read morehighly recommend

Our vehicle sat at his shop for over 3 years for engine restoration and vehicle wiring. We paid…read moreover $8000 ahead of time and all work ceased after that point. To many this may not be alot of money, but we saved for a long time to get this work done and don't have anything else to pay another person to complete. We heard every excuse in the book as to why he couldn't work on it. Long story short, we found out he has been working without a license for awhile. https://search.dca.ca.gov/details/1310/ARD/205611/972644289f4276aab6c25b890fe69a7e The stress of checking in with him every two weeks for over three years, I believe caused my husband to have a heart attack.

Amazing service and quality work. My passenger door handle was broken and the drivers side was…read morelooking rough. Took it in to Paul. Did an amazing job fixing both doors. Goes above and beyond. Highly recommend.

Quick, friendly service. Good value with coupon from website. (Why force longer reviews when they…read morearen't needed, Yelp? Guess I'll stop writing reviews now.)

The manager at Aggie Smog was polite, had a sense of humor, and is Star Certified which is…read morenecessary in CA for a smog check. It didn't take long and was a reasonable price. I highly recommend him.

My husband has been coming here for years to get his oil changed. They're fast, they're efficient,…read moreand they always check his tires. The owner is very friendly, very reliable, and if we need to get our car smogged, he would be the one that we'd go to.

I called a few days ago to inquire about their procedure when smogging a vehicle and I think it was…read morethe owner I spoke with. He was very polite and helpful. Today I came in to get my car smogged and I could tell from the energy in the place that I could trust these guys with my car. The procedure was quick and only took about 15 minutes. I'd definitely recommend them as a fast and efficient, no-nonsense smog check station. The mechanic and Owner were both a pleasure to work with.

EZ Smog odd our GoTo smog service. They are fast, honest and helpful. Try them you'll bet glad you…read moredid!

Quick, easy, friendly…read more First time girl bossing and finding a place to get my smog check as I went to the Davis DMV and they informed me I was due for one. Luckily found this spot on the same road less than .5 miles from the DMV!! Called and asked if I could come in or if they were booked for appointments. Guy on the phone was nice and told me it's first come first serve. I arrived around 8:45 and I was in and out in less than 27 minutes! Very fast and the guy was friendly and informative. Cars made before 2000 have a higher charge. Luckily for my car, it was after 2000. Shoutout to the Yelpers that mentioned to look at the $20 off coupons on their website! The coupon stated to show before filling out the forms for the appointment so I made sure to and the guy was pretty happy I read the directions to show them before service haha. Definitely recommend this spot. The vibes here were real, honest, and people-friendly. Only thing is that I had to drive around some loops because you're supposed to park along the street but when I first tried to park the spots were filled. No biggie.

Great service at a great price. Very quick and very efficient. I will be coming back for my future…read moresmog checks.

I had a great experience getting my smog check done here! It was my first time ever doing a smog…read moretest, and I was honestly a little nervous going in. But the whole process ended up being quick, easy, and stress free. The gentleman was friendly and professional. When my car didn't pass, he took the time to clearly explain exactly what I needed to do in a way that was easy to understand. As someone in my early 20s who doesn't have much experience with car related things, I really appreciated the patience and it made a big difference. Highly recommend if you're looking for a smooth, honest, and helpful smog check experience!

Came in on a Sunday morning right when they opened at 9:00 AM and was able to get in immediately --…read moreno wait at all. I did have to mention that I was using a Yelp coupon, but once I did, it was applied without any issues and helped significantly with the price. The smog check itself took about 20 minutes. Everything was efficient and smooth, and the staff was helpful and professional throughout the process. I got my paperwork quickly and was on my way in no time. Overall, a quick and easy smog check experience. Would definitely come back again.

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!

Excellent, fast, and friendly service! Called on a Tuesday around 12:40pm to book a same day…read moreappointment for a Smog check and was able to get one. I needed to get a Smog certification to get my car registration renewed, and Walnut Creek Smog made the process easy! Check in was quick, and the Smog check was completed in 15 minutes as promised. I've been here twice now, and I'll definitely be back in the future!

Guys are great. Super fast and responsive over the phone. I had just booked a 9 AM appointment on a…read moreFriday. I came in at 8:45 AM and the bro here got me out the door at 9:03 AM. My first time at new location. Way bigger and nicer.

This place is super quick! I came here during my lunch time and I was in and out in a half an…read morehour. You do have to make an appointment though. When I called they said that I can come in and drop-in, but they didn't know how long it would take as it was appointments first and the drop-ins. So I decided to make an appointment. The cost was reasonable! Will def come here again!

These guys are professional and kind. My whole family brings their vehicles here. They're quick too.read more