Price
Call for price
Hours
Open 7 days a week
Station type
Test Only
Appointments
Walk-ins welcome
Hours
- Monday
- 9 AM – 5 PM
- Tuesday
- 9 AM – 5 PM
- Wednesday
- 9 AM – 5 PM
- Thursday
- 9 AM – 5 PM
- Friday
- 9 AM – 5 PM
- Saturday
- 9 AM – 5 PM
- Sunday
- 9 AM – 2 PM
Good to know
Languages
English
Payment
Cash, Credit Card
What to expect at Smog King
Smog King is licensed by the Bureau of Automotive Repair as a Test Only smog station in San Ramon. 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?
- Smog King 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.
19 Beta Court, San Ramon, CA 94583
Get directions →Hours
- Monday
- 9 AM – 5 PM
- Tuesday
- 9 AM – 5 PM
- Wednesday
- 9 AM – 5 PM
- Thursday
- 9 AM – 5 PM
- Friday
- 9 AM – 5 PM
- Saturday
- 9 AM – 5 PM
- Sunday
- 9 AM – 2 PM
Also listed on
Other stations near Smog King
Diablo Auto Care
15 Beta Court
San Ramon Valley Import Center
31 Beta Ct # G
Above All Smog
2045 San Ramon Valley Blvd
San Ramon Smog
2350 San Ramon Valley Blvd
Clear Blue Test Only Smog Station
2850 Crow Canyon Road
Nearby cities in Contra Costa County
Questions about Smog King
Smog King is open Monday 9 AM to 5 PM; Tuesday 9 AM to 5 PM; Wednesday 9 AM to 5 PM; Thursday 9 AM to 5 PM; Friday 9 AM to 5 PM; Saturday 9 AM to 5 PM; Sunday 9 AM to 2 PM. Hours can change on holidays, so call ahead if you are cutting it close.
Smog King accepts Cash, Credit Card.
Smog King has held a BAR smog license since 2004. You can verify the license status at bar.ca.gov.
Smog King 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 (925) 820-5665 for a quote.
Smog King does not take online bookings here, but walk-ins are welcome. Call (925) 820-5665 to check the wait.
Staff at Smog King speak English.
The closest alternatives in San Ramon are Diablo Auto Care and San Ramon Valley Import Center (0.1 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.
Own this shop? Add photos
BAR field office: Hercules • Licensed since 2004