Price
Call for price
Hours
Open Mon–Fri
Station type
Test & Repair
Appointments
Walk-ins welcome
Hours
- Monday
- 8 AM – 5 PM
- Tuesday
- 8 AM – 5 PM
- Wednesday
- 8 AM – 5 PM
- Thursday
- 8 AM – 5 PM
- Friday
- 8 AM – 5 PM
- Saturday
- Closed
- Sunday
- Closed
Good to know
Languages
English
Payment
Credit Card, Debit Card, NFC/Contactless
What to expect at JJ Auto Repair
JJ Auto Repair is licensed by the Bureau of Automotive Repair as a Test & Repair smog station in Brentwood, so it can run the inspection and, if your car fails, diagnose and fix it in the same shop. 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?
- JJ Auto Repair can diagnose and repair the problem in the same shop, then retest the car.
- 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.
6300 Brentwood Blvd, Brentwood, CA 94513
Get directions →Hours
- Monday
- 8 AM – 5 PM
- Tuesday
- 8 AM – 5 PM
- Wednesday
- 8 AM – 5 PM
- Thursday
- 8 AM – 5 PM
- Friday
- 8 AM – 5 PM
- Saturday
- Closed
- Sunday
- Closed
Also listed on
Other stations near JJ Auto Repair
Millennium Auto Care
6700 Brentwood Blvd
Savers Auto Service
6750 Brentwood Blvd Suit B
Brentwood Smog Express
8040 Brentwood Blvd Suite C
Bill Brandt Ford
8100 Brentwood Blvd
Jimmys Smog
8157 Brentwood Blvd Ste d
Nearby cities in Contra Costa County
Questions about JJ Auto Repair
JJ Auto Repair is open Monday 8 AM to 5 PM; Tuesday 8 AM to 5 PM; Wednesday 8 AM to 5 PM; Thursday 8 AM to 5 PM; Friday 8 AM to 5 PM. Closed Saturday and Sunday. Hours can change on holidays, so call ahead if you are cutting it close.
JJ Auto Repair accepts Credit Card, Debit Card, NFC/Contactless.
Google lists the following accessibility features at JJ Auto Repair: wheelchair accessible entrance, wheelchair accessible parking.
JJ Auto Repair has held a BAR smog license since 2014. You can verify the license status at bar.ca.gov.
JJ Auto Repair 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) 513-5927 for a quote.
JJ Auto Repair does not take online bookings here, but walk-ins are welcome. Call (925) 513-5927 to check the wait.
Staff at JJ Auto Repair speak English.
The closest alternatives in Brentwood are Millennium Auto Care (0.3 mi) and Savers Auto Service (0.4 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 2014