H Smog is a Smog Inspection Service in Concord, CA

PASS or Don't Pay! *2000 year models and up STAR SMOG STATION

Do you need a smog check for a registration renewal, change of automobile ownership or out-of-state vehicle? Welcome to H Smog, your professional and reliable smog inspection service in Concord, CA and the surrounding areas. Our smog station is able to perform smog tests for cars, hybrids, trucks, SUVs, RVs, and fleet vehicles. We complete your smog check in a swift 10 minutes and you can come in with no appointment necessary. If your car does not pass the first time, you are eligible for a free retest.

Our Specialties:

  • Smog Station
  • Emission Test
  • Smog Certification

Auto Smog Check Prices:

  • Smog Check: $41.99* (Monday-Saturday) with coupon only
  • $91.99 (only on Sundays by appointment only)

  • Smog Certificate: $8.25

  • Van & Truck: $10

  • Out-of-State: $20
  • EVAP test, Diesel, Dyno: $20 per vehicle
  • Dyno Test Only: $20
  • Star: $20

*Extra cost may be substantial * Prices change depending on the vehicle's model and year.

At H Smog, our goal is to provide great service to please our client's and give them the eco test they need and deserve. With our record of trust and reliability, you can be confident that H Smog will deliver the professional services that you need to get back on the road safely.

We smog Diesels, Rvs, hybrids. 10 minutes per Vehicle. Test smog check. no appointment necessary. Free retest. No long wait. Call us today. Friendly Service. Walk-ins are welcome. Special smog prices. Types: Rvs, hybrid, Diesel. For more information about our smog services, contact H Smog.

Please remember to print the coupon before arrival. Please remember that the coupon present after test, will not be accepted!


What Makes Us Proud
  • Great Customer Service
  • Time-Efficient
  • We Match All Competitor Prices
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Locations Served
  • Concord, CA