Guadalupe R.
6/2/2025
Excellent service!! I was in and out in 20 mins!! Definitely great for a busy person.
Ontario Smog
Closed
(190)
Photos
152 N Mountain Ave
Ontario, CA 91762
If you need a smog check, Ontario Smog can take care of it. Chances are you need a smog check if:Youre renewing the registration of your vehicle (required every other year for vehicles older than 4 years)Youre registering the vehicle for the first time in the State of CaliforniaYoure selling your vehicleYour vehicle is not diesel powered, electric, natural gas powered and over 14,000 lbs, a hybrid, motorcycle, or trailerYour vehicle is a gross polluter
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Reviews
5.0190 reviewsBreonna G.
7/19/2025
$40 smog check and swift service. I was in and out in 10 minutes!!! Can't get any better than that. The service technician Danny was so polite and approachable as soon as I pulled into the...
Madyln C.
1/6/2025
I needed to have my 2017 Nissan smogged. So I came to Yelp and found Ontario Smog. I saw there were many good reviews & so I came in today. It's located on Mountain/Holt north east next to Liberty...
Mano E.
5/3/2025
Smog check test only. Very fast service, friendly and valuable. In and out in about 20 minutes.
Maliyah D.
7/15/2025
Came here for the first time a few days ago and I will definitely be returning. Great and friendly staff. The whole visit took about 15mins.
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