Prof Smog                     730 San Pablo Ave Bldg 5 Unit 1, Pinole, CA 94564     510-724-9753

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Smog Testing & Certification Station

DMV • Regular • Test Only • STAR
Cars • SUVs • Vans • Trucks • Motor Homes & RV's


Prof Smog specializes in smog testing and certification in Pinole, California, serving Contra Costa County. Prof Smog is an owner-operated business and is ASE certified. We smog test and certify vehicles whether or not they are required to go to a Smog Test Only Center or a STAR Certified smog station - Prof Smog is Test Only and STAR Certified. We've been in business for 14 years, and our owner has 22 years of experience. We offer smog and emissions tests at competitive prices, and if your vehicle passes, we'll issue your certificate.

Most other smog stations only take customers on a first-come, first-serve basis, possibly creating long lines and wait times. Appointments are available and currently needed so that your service is prompt. On time appointments have priority, but we may take drive-ins if time is available. Contact us at 510-724-9753 (or if email use smog for the subject line - I usually respond more quickly to telephone messages) today to make an appointment! 



Prof Smog, Auto Smog Inspection, Pinole, CA


Come see us for smog testing and certification.

Please Bring Your DMV Renewal Slip.

Please be aware that mapping programs do not necessarily lead you to the correct location - see location page for further information

Car - Contact us in Pinole, California, for smog and emissions tests, and smog certification. Traffic - Contact us in Pinole, California, for smog and emissions tests, and smog certification. Car - Contact us in Pinole, California, for smog and emissions tests, and smog certification. Traffic - Contact us in Pinole, California, for smog and emissions tests, and smog certification.

As a test only station, Prof Smog offers smog testing services only. We do not make repairs. We test most vehicles from cars and trucks to motor homes, and prices will vary depending on what type of vehicle you have. For most vehicles, smog testing is complete within 30-60 minutes, and we have a waiting area for your convenience. We accept debit cards, cash, and most major credit cards for payment. Contact our smog and emissions testing station today!

Contact us in Pinole, California, for smog and
emissions tests, as well as smog certification.
(866) 577-8797(866) 577-8797 or (510)724-9753(510)724-9753



no coupon required

1996 & Newer $45.75* + Certificate

1995 & Older $59.75* + Certificate

DIESELS $65.75* + Certificate

Certificate $8.25 

NO ET FEE (Electronic Transmission Fee)

NO LPFET FEE (Low Pressure Fuel Evaporative Test Fee) 

Currently, in most cases excluding aborted tests or vehicles that won't start on their on power,  unlimited reduced price (1/2 price) retests are available (within 2 calendar months).*

*Please call 510-724-9753510-724-9753 for further information

Appointments allow you to be in and out more quickly

Your Time is Valuable and Same Day Appointments May Be Available


Please pay DMV fees on time to avoid DMV penalties as stated on the back of the DMV renewal notice. This does not make it legal to drive the car after the tags expire but at least you may avoid DMV penalties. Temporary operating permits or one day moving permits may be available - if needed, ask DMV.

Regular Hours

(Please check Tentative Current Hours below in white for most current information - closed at least one day besides Sunday and for holidays and breaks)

 Most Weekdays 10:00 - 6:00 appointment needed

Most Saturdays 10:00 - 6:00 appointment needed - information requested includes name, phone number, and vehicle year, make, model, and license plate number

Tentative Current Hours

Weeks may be out of order


9/1/14 - 9/6/14

Monday         10-6  appointment needed

Tuesday           9-6  appointment needed

Wednesday             closed

Thursday       10-6  appointment needed

Friday              9-6  appointment needed

Saturday          9-6  appointment needed


8/25/14 - 8/30/14

Monday         10-6  appointment needed

Tuesday         10-6  appointment needed

Wednesday             closed

Thursday       10-6  appointment needed

Friday              9-4  appointment needed

Saturday          9-6  appointment needed


If I do not answer, please leave a message that includes name and phone number so that I may contact you. Also, please do not request a day that I will be closed (possible exception - that is your day off and you are a prior customer). I apologize for any inconvenience this may cause.

Thank You.

Please note that we may be out sometimes. Appointments are needed. Breaks will be taken. we close for lunch. Prior customers may be able to make earlier, later, or lunch hour appointments by prior arrangement.

Thank You.

I try to respond to phone messages 510-724-9753510-724-9753 in a timely fashion and sometimes use call forwarding. Phone messages usually are answered more quickly than emails.

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We currently accept:     Cash  Debit  Discover  MasterCard  Visa