Price
Call for price
Hours
Open Mon–Fri
Station type
Test Only
Appointments
Walk-ins welcome
Hours
- Monday
- 9 AM – 4:45 PM
- Tuesday
- 9 AM – 4:45 PM
- Wednesday
- 9 AM – 4:45 PM
- Thursday
- 9 AM – 4:45 PM
- Friday
- 9 AM – 4:45 PM
- Saturday
- Closed
- Sunday
- Closed
Good to know
Languages
English
Payment
Cash, Credit Card
What to expect at Insta Smog
Insta Smog is licensed by the Bureau of Automotive Repair as a Test Only smog station in San Lorenzo. It runs the inspection and issues the certificate but does no repairs. It is STAR certified, so it can test vehicles the DMV directs to a STAR station, including gross polluters.
Walk-ins are welcome. Most smog checks take 15 to 30 minutes, and most visits are closer to 20.
What to bring
Your registration or DMV renewal notice
It says whether the car needs a STAR station.
The car, with the check engine light off
On a 2000-or-newer car, a lit check engine light fails the test on its own.
A way to pay
The $8.25 state certificate is paid on top of the test when the car passes, unless the station's price or coupon includes it.
What if I fail?
- Insta Smog doesn't do repairs, so the car goes to a repair shop and comes back for the retest.
- Each station sets its own retest price, so ask before the first test.
- BAR's Consumer Assistance Program pays up to $1,450 toward emissions repairs for income-eligible owners.
Sycamore St, San Lorenzo, CA 94580
Get directions →Hours
- Monday
- 9 AM – 4:45 PM
- Tuesday
- 9 AM – 4:45 PM
- Wednesday
- 9 AM – 4:45 PM
- Thursday
- 9 AM – 4:45 PM
- Friday
- 9 AM – 4:45 PM
- Saturday
- Closed
- Sunday
- Closed
Also listed on
Other stations near Insta Smog
Nearby cities in Alameda County
Questions about Insta Smog
Insta Smog is open Monday 9 AM to 4:45 PM; Tuesday 9 AM to 4:45 PM; Wednesday 9 AM to 4:45 PM; Thursday 9 AM to 4:45 PM; Friday 9 AM to 4:45 PM. Closed Saturday and Sunday. Hours can change on holidays, so call ahead if you are cutting it close.
Insta Smog accepts Cash, Credit Card.
Insta Smog has held a BAR smog license since 2011. You can verify the license status at bar.ca.gov.
Insta Smog has not published a price on SmogCheckDeals. The Bureau of Automotive Repair puts the statewide average at $69.16 as of August 2026, about $65 for a 2000-or-newer vehicle and $73 for 1999-or-older, plus the $8.25 certificate fee. Call (510) 317-1705 for a quote.
Insta Smog does not take online bookings here, but walk-ins are welcome. Call (510) 317-1705 to check the wait.
Staff at Insta Smog speak English.
The closest alternatives in San Lorenzo are A - One Auto (0.2 mi) and A & C Auto Service (0.5 mi). Both are listed further up this page with their ratings and hours.
How we get this data: BAR licenses and STAR status, Google hours and ratings, coupons published by the station.
Verify this station’s license and STAR standing at bar.ca.gov.
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BAR field office: Hercules • Licensed since 2011