Your California Smog Check Experts


Our Mission is to be fast and friendly – Check our coupons on the coupon page!

We specialize in providing prompt and professional service for all your smog check needs. Each member of our team is here to serve you and provide you the peace of mind only we can deliver.

We are STAR Certified and State of California Licensed to meet all of your smog check needs.


Fast & Reliable SMOG Service Including:

  • STAR Cerified station
  • Test Only or Gold Shield
  • Regular Smog Check for DMV
  • Diesel Smog Check
  • Change of Ownership
  • Out of State Vehicles
  • Gross Polluters
  • Or Any Type of Smog

Please Note: Trucks, Vans, and SUV’s are extra. Cars from 1995 and older may require and EVAP test.

Choose 1 San Ramon for all of your SMOG needs and take advantage of our unbeatable prices and excellent customer service.


Click to DOWNLOAD the coupon below (or you can just mention our ad!)



We are conveniently located near you:
2210 San Ramon Valley Blvd Unit A
San Ramon, CA 94583

Phone: (925) 831-8378

Hours of Operation:
Monday to Friday 8:30am – 6:30pm
Saturday 9am – 5pm
Sunday 10am – 4pm

We are next to the Brass Door Restaurant on the Freeway Side. Visit us today!


About Us

As a leading provider of Smog Check, we take pride in offering the best service in San Ramon. We are dedicated to serving the needs of our customers each and every day.

Count on the experts at 1 San Ramos Smog to provide the highest standards of service in the industry and help you avoid those automotive pitfalls down the road.