All Smog El Camino
“The service that I received was exceedingly courteous and of the utmost professional level.”
Best Car Inspection & Emissions Testing near Union City, CA
We have 4 stations in Union City on file. Only the highest-rated make our list: 2 of them made it, along with 12 from Redwood City (13 mi).
9 open weekends · 12 rated 4.5+ · 1 shows a license
Data verified October 16, 2026
Air Care Smog Test Center
“Super hardworking employees get you in and out before you know it.”
Redwood General Tire Pros
“I had a problem with my car and they took in right away .”
Union City Smog Check
“His great personal service is a refreshing change to the lagging quality of customer service we have been seeing in businesses lately.”
H K Smog
“Brought in a 79 Porsche 911, Willy knew how drive it like a pro, no gears grinding, very knowledgeable!!”
Redwood City Smog Test Only
“We had a slight disagreement at the start, but they ended up treating me very fairly.”
Listed for drivers in and around Union City, CA, these 14 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: Union City, CA
The 14 stations on this page are rated from 4.2 to 5.0 across 1,702 reviews; 8 have 50 or more reviews and 12 are rated 4.5 or higher. The topics that come up most in reviews of the stations on this page are "price" and "honest". 9 are open on Saturdays. 1 shows a license on its website and 3 have a BBB rating of A or A+. Domain records put 3 websites of the stations on this page at ten or more years old; the oldest dates from 2004. 2 are family- or locally-owned and 2 list coupons or special offers. We have a website on file for 8 of the stations on this page; 5 publish a contact page and 3 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 use a station outside Union City?
Inside your own state, yes. 2 of the 14 shops here are in Union City and the rest come from other towns. Crossing a state line does not work, because the test has to be accepted by the state that registers the car.
Escutia's Auto Repair
“They are my old neighborhood repair shop and after growing up I still bring my cars to them.”
J&A Smog and Service
“I had a good experience with my smog check and oil change, they are friendly people would recommend”
Peninsula Smog
“With their efficient, professional, and pleasant way, You'll leave with a smile, and a great day”
A & L Auto Repairs
“Outstanding honesty, the guys who works on cars will be the first one to tell you if you don't need to change or replace a part.”
Auto Master Care
“Nice auto repair shop 😊”
Precision Auto Repair Center
“Great service, reasonable prices, and the job got done right.”
Legacy Auto Repair
“If you go anywhere else your crazy best car service and affordable price I've ever had”
Magic Auto Repair
“I trust this guy over every mechanic I've ever had.”
Why these companies made our list
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