Rochelle F.
1/5/2026
I had expressed a window of time i would be by, and ended up being being a bit late. i didn't have to wait e 5 minutes, until my car was in the bay, and the entire process was done within 15...
Smog Star Express
Closed
(940)
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1130 Detroit Ave Ste 1
Concord, CA 94520
Smog Star Express is a trusted STAR Smog Test Station in Concord, CA, dedicated to providing honest and high-quality smog testing services for all types of vehicles, including RVs and Diesels. With their state-of-the-art diagnostic technology and quick turnaround time, they ensure efficient service while maintaining a commitment to keeping the air clean. As a family-owned and operated business, they prioritize customer satisfaction and offer complimentary WiFi, beverages, and snacks for a comfortable waiting experience.
With a team of passionate technicians who have a deep love for automobiles, Smog Star Express guarantees that your car or truck is in the best hands. Their advanced cutting-edge diagnostics and expertise extend the life of any vehicle, making them the go-to choice for smog testing. Committed to providing outstanding service and value, Smog Star Express has been serving the East Bay since 2004, covering areas such as Concord, Martinez, Pleasant Hill, Walnut Creek, and more.
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Reviews
4.5940 reviews
Red D.
8/7/2025
Good experience getting the annual smog check. There was a lunch hour rush of four car in front of me, and still I was out in about 40 minutes. Approximately processing of ten minutes per car....
Cosette P.
1/10/2026
Quick, easy service, with no wait!! Second time here and never disappointed!! There's even a nice little waiting area outside.
Tom B.
11/7/2025
I've been coming to this location for the last 5-6 smog checks and have had nothing but good experiences. The techs are always friendly, quick, and professional. Prices are reasonable, and...
Raymond S.
9/15/2025
I scheduled an appointment the night before for an 8 AM smog check. Unfortunately, the technician arrived late. When they attempted to run the test, they said the OBD reader wasn't able to read my...
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