Smog Star Express - STAR Test Only Station

Smog inspection station

4.3 4.3 from 487 reviews

Own Smog Star Express - STAR Test Only Station? Claim this listing free →

Smog Star Express is a smog and emissions station in Concord, CA. It holds a 4.3 star rating from 487 customer reviews. Read the reviews and hours below, or call (925) 356-6858.

Photo from this business's Google profile.

Address1130 Detroit Ave #1, Concord, CA 94520

MapOpen the map →

Phone(925) 356-6858

Websitehttps://www.smogteststar.com/

Also onGoogle

LicenseCalifornia BAR ARD 277294Active on the state's licensee list (October 2026), registered since 2014

Smog checkLicensed smog station, Test Only (277294)

Hours

See the full week

Monday	8 AM–7 PM
Tuesday	8 AM–7 PM
Wednesday	8 AM–7 PM
Thursday	8 AM–7 PM
Friday	8 AM–7 PM
Saturday	8 AM–6 PM
Sunday	9 AM–5 PM

Smog Star Express Reviews & Ratings

Customer reviews 4.3 4.3 · 487 reviews

Used this smog station? Leave a review.

Your review appears right here after a quick check. Stick to your own experience — no personal info, no promotion. Your email is never shown.

FOR THE OWNER

Is this your business?

Claiming is free and takes about five minutes. You get to fix the details, add photos, answer reviews, and show a verified badge that puts you above the unclaimed listings in Concord.

Claim this listing free → Add a different business

No card, no contract. Run a shop crew? See the Supercanic franchise program.

Text a Repair AI That Knows Your Car.

Text (413) 288-6349 what the vehicle is doing. It decodes your VIN, checks the open recalls, and walks you through what to check first, in plain words. The first two answers are free.

Text (413) 288-6349

Need Work Done in Concord? Get a Free Quote.

Tell us what the car is doing. A local mechanic calls you back, most requests get a call back the same day. No fee, no obligation.

💬 Request a Mechanic Quote →

What Car Repairs Cost in Concord, CA

Typical independent shop prices at California labor rates, parts and labor, for a midsize car. Each guide shows the price for your vehicle and what to ask before you pay. See all 91 repair cost guides.

Catalytic converter replacement cost $420 to $1,750 Oxygen sensor replacement cost $120 to $510 EVAP leak repair cost $140 to $740 EGR valve replacement cost $210 to $840 Purge valve replacement cost $110 to $460 Exhaust leak repair cost $150 to $690