Station data: California Bureau of Automotive Repair (BAR) Auto Shop Locator, retrieved September 18, 2026. Not affiliated with BAR.
BAR’s Auto Shop Locator lists 21 licensed smog check stations in Walnut Creek. 7 are STAR stations, 4 are test-only stations that inspect vehicles but do not make emissions repairs, and 17 are test-and-repair stations. Each listing shows the station’s address, phone number and BAR license number. BAR does not publish prices or opening hours, so call before you go, or use our free quote form and let stations come to you.
Most of these stations are in ZIP codes 94596 (13), 94597 (6), 94598 (1), 94595 (1).
Smog check stations in Walnut Creek, CA
STAR stations are listed first, then alphabetically. Showing 21 of 21.
| Station | Address | Phone | Type | BAR license |
|---|---|---|---|---|
| Gordon Smog Test & Lube Center | 1520 Third Avenue Ste C, Walnut Creek, CA 94596 | (925) 947-6068 | STARTest & repair | #232440 |
| Quick STAR Smog | 1790 Ygnacio Valley RD Unit B, Walnut Creek, CA 94598 | (925) 939-5555 | STARTest only | #286218 |
| Roesbery Car Care | 3099 N. Main ST., Walnut Creek, CA 94597 | (925) 974-0785 | STARTest & repair | #270200 |
| Smog N Dash | 2040 N Main ST #26, Walnut Creek, CA 94596 | (925) 279-1170 | STARTest only | #268878 |
| Smog STAR Express | 1611 Newell Avenue, Walnut Creek, CA 94596 | (925) 938-3315 | STARTest only | #316715 |
| STAR Smog | 1225 Parkside Drive, Walnut Creek, CA 94596 | (925) 927-5000 | STARTest only | #271379 |
| Walnut Creek Smog Incorporated | 1515 3rd Avenue, Walnut Creek, CA 94597 | (925) 938-1646 | STARTest & repair | #299621 |
| Aamco Walnut Creek | 1410 Autocenter DR, Walnut Creek, CA 94597 | (925) 945-1088 | Test & repair | #244643 |
| Diablo Subaru of Walnut Creek | 2646 N Main ST, Walnut Creek, CA 94597 | (925) 937-6900 | Test & repair | #274710 |
| Dirito Brothers Walnut Creek VW | 2020 N Main ST, Walnut Creek, CA 94596 | (925) 934-8224 | Test & repair | #180334 |
| German Sport | 1400 Autocenter DR, Walnut Creek, CA 94597 | (925) 934-6665 | Test & repair | #296714 |
| Joe's Foreign Automotive | 2830 N Main Street, Walnut Creek, CA 94597 | (925) 938-0110 | Test & repair | #284995 |
| Lithia Pre-owned Center of Walnut Creek | 1840 N Main ST, Walnut Creek, CA 94596 | (925) 937-6900 | Test & repair | #295890 |
| Mercedes Benz of Walnut Creek | 1301 Parkside Drive, Walnut Creek, CA 94596 | (925) 937-1655 | Test & repair | #242307 |
| N Service Auto Repair & Service | 1145 Bont Lane, Walnut Creek, CA 94596 | (925) 932-1740 | Test & repair | #279687 |
| Rossmoor Chevron Autocare | 1998 Tice Valley Blvd, Walnut Creek, CA 94595 | (925) 944-0899 | Test & repair | #238404 |
| Toyota Walnut Creek | 2100 North Broadway, Walnut Creek, CA 94596 | (925) 933-7440 | Test & repair | #289121 |
| Walnut Creek Cadillac | 2390 N Main ST, Walnut Creek, CA 94596 | (925) 934-9300 | Test & repair | #80143 |
| Walnut Creek Chrysler Jeep Dodge Ram | 2404 N Main ST, Walnut Creek, CA 94596 | (925) 937-5060 | Test & repair | #170632 |
| Walnut Creek Ford | 1800 N Main ST, Walnut Creek, CA 94596 | (925) 932-2900 | Test & repair | #149297 |
| Walnut Creek Honda | 1707 North Main Street, Walnut Creek, CA 94596 | (925) 934-0530 | Test & repair | #98921 |
Get Free Quotes in Walnut Creek
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Get Free Quotes →Smog check questions in Walnut Creek
How much does a smog check cost in Walnut Creek?
BAR does not regulate smog check prices, so each station in Walnut Creek sets its own. The station must give you an estimate that you approve before the inspection starts, and it must charge the $8.25 Smog Check certificate fee. Call two or three stations before you go. Our cost guide explains what moves the price.
How long does a smog check take in Walnut Creek?
BAR says an inspection usually takes about 30 minutes. Time spent waiting depends on the station, so call ahead. More in our guide to smog check times.
Do I need a STAR station in Walnut Creek?
Only if your DMV registration renewal notice says "Smog Certification Required at a STAR station". Otherwise you can use any station licensed to do smog checks. 7 of the 21 stations listed above are STAR stations. See what STAR means.
Do I need a smog check in Walnut Creek?
If your DMV registration renewal notice says a smog certification is required, yes. Most gasoline, hybrid and alternative-fuel vehicles from model year 1976 on need a smog check every other year, with exceptions listed in our requirements guide.
STAR, test-only or test-and-repair?
BAR describes three kinds of stations that can perform an inspection. A test-and-repair station performs smog checks and emissions repairs. A test-only station performs smog checks but does not make emissions repairs. A STAR station meets higher performance standards and can inspect all vehicles, including high-polluting ones. Read the full comparison in our test-only vs test-and-repair guide.
Other cities in Contra Costa County
Brentwood. See the Contra Costa County page for the rest of the county.