Redwood Auto Smog Test

Smog inspection station

4.9 4.9 from 184 reviews

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Redwood Auto Smog Test is a smog and emissions station in Napa, CA. It holds a 4.9 star rating from 184 customer reviews. Read the reviews and hours below, or call (707) 257-0571.

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Address2005 Redwood Rd, Napa, CA 94558

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Phone(707) 257-0571

Websitehttps://www.redwoodsmognapa.com/smogcheck

Also onGoogle

LicenseCalifornia BAR ARD 239204Active on the state's licensee list (October 2026), registered since 2005

Smog checkLicensed smog station, Test Only (239204)

Hours

See the full week

Monday	8:30 AM–6 PM
Tuesday	8:30 AM–6 PM
Wednesday	8:30 AM–6 PM
Thursday	8:30 AM–6 PM
Friday	8:30 AM–6 PM
Saturday	9 AM–4 PM
Sunday	Closed

Redwood Auto Smog Test Reviews & Ratings

Customer reviews 4.9 4.9 · 184 reviews

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What Car Repairs Cost in Napa, 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