Smog Checks in Fresno

*Please bring your DMV renewal notice indicating a Smog Check is required with you and your Smog Check certificate will be electronically sent to the DMV.

Why Choose California Smog Repair in Fresno for Your Smog Testing and Repair

  • Specialized smog check service station in Fresno
  • Smog test and repair options to minimize cost and maximize convenience
  • Smog failure diagnosis with onsite repair and smog retesting
  • State-of-the-art automotive smog repair systems and tools
  • We participate in the California State Free Smog Testing Program
  • Ask about smog repair discounts and coupons

Fresno's Trusted Source for Smog Testing and Repair

Ask any car or truck owner in Fresno who they recommend for smog testing and repair, and they will tell you California Smog Repair.

Since 1986, the pro mechanics at California Smog Repair have provided quick smog testing and cost-effective smog repairs when needed. Start a maintenance service plan with us that can help prevent high-cost repairs to your emission system. We are professional, honest, and friendly. For five star, cost conscious smog testing and repair services call California Smog Repair at 559-277-1111 to schedule an appointment today or stop by our location at 4123 W Shaw Ave
Unit 105 in Fresno, CA, 93722.

What Does California Smog Repair Do During a Smog Check?

We inspect your car or truck's emissions-control equipment to measure the number of pollutants your vehicle is emitting.

First, California Smog Repair will analyze your car or truck's OBD computer system, emissions-control system, and check engine light codes for standard warnings that your emissions system is no longer functioning properly.

Next, we will inspect your car or truck's gas cap, ignition timing, exhaust gas recirculation system, fuel, and evaporative system.

Finally, we will perform a Tailpipe Emissions Inspection which measures the type and quantity of any pollutant emitted from your vehicle's tailpipe.

Did You Pass Your Smog Test?

Great! If your vehicle passes a smog check, California Smog Repair will provide you a vehicle inspection report showing your vehicle's results and will electronically send the smog certificate to DMV.

Smog Check Repairs
What do I do if I my car fails the smog test? At California Smog Repair we will work with you to make the needed repairs to help your car pass the smog test and get your certificate.
Discover more about smog check repairs

Smog Testing vs. Emissions Testing
Sometimes customers refer to smog as emissions testing, but they are not the same. Each test measures different levels of hydrocarbons, oxygen, carbon monoxide, and oxides.

Discover the difference between smog testing and emissions testing


I can't recommend this place enough. I got my car serviced there a couple months ago. I couldn't pass smog because of my check engine light. As a single mom of two I didn't know how I was going to afford this. I discovered the CAP program. I live in Hanford and the closest place was in Lemoore and I had a horrible experience with that shop. The day I called California Smog, George answered the phone and was an absolute delight to chat with. He is very professional and didn't hesitate to let me know I can bring my vehicle in. They did a phenomenal job and all the other employees were amazing. Armando at the front desk multi-task between jobs and I couldn't ask for a better experience. Thank you to the whole team at California Smog. George, thank you sir for having the business you have.


Very respectable smog shop in Fresno have never had any issues the owner and employees are super respectful and informative just did my mom's SUV there.

Discover More About Exhaust Repair Services At California Smog Repair in Fresno

Machine Work
Emissions And Smog Testing
Learn more about Smog Checks vs Emissions Testing

BBB Accredited Business
NAPA  Auto Care
CA Smog
California Bureau of Automotive Repair
Valley Can
Car Care Aware