Kwon's Auto Repair
“Payment process was also good, with an itemized estimate before the inspection and the actual work, as well as an itemized receipt after, making the process and costs very clear and upfront.”
Best Car Inspection & Emissions Testing near San Marcos, CA
We have 13 stations in San Marcos on file. Only the highest-rated make our list: one of them made it, along with 9 from San Diego (21 mi).
3 open weekends · all 10 rated 4.5+
Data verified October 16, 2026
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John's Automotive Care
“I would recommend coming here for the authentic customer service oriented experience that so many businesses seemed to have lost these days.”
Convoy Smog
“Get down under my car, scrape the rust In order to be able to read the serial number, you took them a little bit of time, but the job was done”
Pacific Auto Service
“Olivier, Fernando and their team are knowledgeable, professional and above all ,trustworthy!”
Convoy Auto Repair
“We have been taking our cars to Convoy for years, and have always been impressed with their professionalism, knowledge, honesty and quality.”
Secor's Automotive
“I highly recommend Secor's for fast and reliable service and will definitely be going back for any other issues in the future.”
Listed for drivers in and around San Marcos, CA, these 10 shops carry out emissions and inspection work. What each one says about its station license, hours and retest policy comes from its own website; ratings and quotes come from public reviews.
Area overview: San Marcos, CA
The 10 stations on this page are rated from 4.6 to 4.9 across 3,121 reviews; all 10 have 50 or more reviews. When customers rate these stations on specific qualities, they most often praise quality (88%), value (74%) and professionalism (71%). The topics that come up most in reviews of the stations on this page are "communication", "estimates" and "honest". 3 are open on Saturdays. 2 list staff certifications (ASE) and all 10 have a BBB rating of A or A+. All 10 have ten or more years of experience, the longest 46 years. 1 offers financing; 1 gives free estimates; 3 are family- or locally-owned and 5 list coupons or special offers. We have a website on file for all 10 of the stations on this page; 8 publish a contact page; 4 list a public email and 6 take bookings online. We count these figures across the stations on this page; distances are straight-line, and hours and prices change, so confirm the details with the station before you visit.
Can I book a test online with shops listed for San Marcos?
6 of the 10 shops here take bookings online. Some stations work on a queue instead, which is fine early in the month and painful at the end of it. If you can book, take the first slot of the day and you will be out before the line forms.
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KB Motorsports
“We've been going to KB Motorsports and having the guys work their magic for several years on several of my wife's BM Ws.”
Sheens Auto Care
“Sean at Sheens has a military background and is straightforward with diagnostics and repair costs at a fair and reasonable cost.”
Tune Craft Auto Center Inc.
“We drove our PT Cruiser from Michigan 11 yrs ago and it is still in excellent working condition thanks to the mechanics and staff.”
Smog Express
“Might've been able to find it a bit cheaper elsewhere, but time is also money and very nice to get it done and out of the way.”
Why these companies made our list
What customers say about stations near San Marcos
- “They replaced the motor & transmission mounts and the car is back to being super smooth!” — customer of KB Motorsports
- “Great customer service and friendly approach. I highly recommend the Convoy Smog shop.” — customer of Convoy Smog
- “Pleasant, professional and honest. I have nothing but good things to say.” — customer of Tune Craft Auto Center Inc.
- “Alex was very approachable and knowledgeable. I needed my car smogged and was in and out of the shop in less than 30 min.” — customer of Smog Express
- “Friendly and professional. The one time I brought a car that didn't pass, they knew why and offered to repair on the spot.” — customer of Convoy Smog
Excerpts from public reviews of the stations listed on this page.
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