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Smog Check & Emissions Testing Stations in Walnut Creek, CA

13 of the 73 auto repair shops we list in Walnut Creek have smog checks or emissions tests.

Not every repair shop is licensed to test emissions, and a map search for a smog check mixes test stations with parts stores and dealerships. Every station here names smog checks or emissions testing in its business name, its listing category or on its own website.

  1. A-1 Brake & Tire

    2008 Mt Diablo Blvd, Walnut Creek, CA 94596-4302

    Mon–Fri 8:00 AM–5:00 PM

    Smog & emissionsTransmission repairMuffler & exhaustLoaner or shuttle
    Call Website Directions

  2. N Service Japanese Auto Repair

    1145 Bont Ln, Walnut Creek, CA 94596-4405

    Smog & emissionsTransmission repairEuropean & importFinancing
    Call Website Directions

  3. SmogNdash

    2040 N Main St #26, Walnut Creek, CA 94596

    Smog & emissions
    Call Website Directions

  4. Oakmont Auto Care

    1400 Central Rd Ste 6, Walnut Creek, CA 94596

    Smog & emissionsA/C repair
    Call Website Directions

  5. Roesbery Car Care

    3099 N Main St, Walnut Creek, CA 94597

    Smog & emissionsTransmission repairMuffler & exhaust
    Call Website Directions

  6. Star Smog

    1225 Parkside Dr, Walnut Creek, CA 94596

    Smog & emissions
    Call Website Directions

  7. Walnut Creek Smog

    1433 Mazda Dr, Walnut Creek, CA 94597-2711

    Smog & emissions
    Call Website Directions

  8. All Star Smog Testing of Walnut Creek

    1387 S California Blvd, Walnut Creek, CA 94596

    Smog & emissionsState inspection
    Call Website Directions

  9. Smog Star Express Walnut Creek

    1611 Newell Avenue, in the Mobil Gas Station, Walnut Creek, CA 94596

    Smog & emissions
    Call Website Directions

  10. Gordon's Smog Test & Lube Center

    1520 3rd Ave Unit C, Walnut Creek, CA 94597

    Smog & emissions
    Call Website Directions

  11. Oakmont Auto Care

    1400 Central Ave Ste 6, Walnut Creek, CA 94596

    Smog & emissionsA/C repair
    Call Website Directions

  12. A1 Test Only Smog Station

    1790 Ygnacio Valley Rd Ste B, Walnut Creek, CA 94598

    Smog & emissions
    Call Directions

  13. Contra Costa Smog

    1411 Autocenter Dr, Walnut Creek, CA 94597

    Smog & emissions
    Call Directions
Bring your registration renewal notice. States that require emissions testing usually print the type of test on it. In California, a notice that says “STAR station required” means only a STAR-certified station can do the check, and test-only stations check cars but do not repair them.

Also in Walnut Creek

More in Walnut Creek and California

Smog Check & Emissions Testing Stations near Walnut Creek

Good to know

How much does a smog check cost?

Prices depend on the state and the station. In California a smog check usually costs about $30–70 plus the state certificate fee; in states that run their own emissions programs the fee is often a flat amount set by the state.

What happens if my car fails the emissions test?

You get a report with the reason for the failure, and the car needs repairs before a retest. Many states give a free or discounted retest within a set number of days, and some offer repair assistance or waivers when repair costs pass a limit.