Jann T.
10/4/2025
Will, at Guy's Smog, has done a good job for us these last two years. He smogs all our vehicles, which seem to be legion. He's efficient and fairly priced. Just drive in; no appointment necessary.
Guys Smog
Closed
(74)
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906 Alhambra Ave
Martinez, CA 94553
Guys Smog is a family-owned and operated smog check inspection station located in the heart of downtown Martinez, California. With over 20 years of experience serving Contra Costa County, they pride themselves on providing swift and safe services at competitive prices.
As a STAR certified facility, Guys Smog offers a range of automotive services including smog tests, emissions repairs, air conditioning service, and vehicle safety inspections. Their commitment to quality and customer satisfaction makes them a reliable choice for all automotive needs.
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Reviews
4.574 reviews
Marco G.
10/29/2025
Guys Smog is a well operated shop. Guy is a true professional. I recommend this shop hands down!
Tyler K.
10/26/2025
Great place to go. Battery was dead the day before and he was afraid it may not pass. He hooked up his tester to see and he thought it would pass after all and did the smog. No issues. Was...
The D.
11/15/2024
I've taken all my smogs there for about 6 or 7 years now. They have always shot straight with me and told me as early as they could if they were aware something something was an issue before...
Polina P.
6/14/2025
I received efficient and friendly smog certification service from William for my routine smog renewal. The test was performed quickly, and met the STAR certification requirements. The owner is...
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