Castro Smog

Smog inspection station
Opens at 9:00 AM
4.4 (63 reviews)
376 Castro St, San Francisco, CA 94114

About

Castro Smog is a provider of emissions testing services in San Francisco, California. They specialize in offering smog check services to ensure vehicles meet state emissions standards. The business is categorized as a smog inspection station and provides vehicle inspections, OBD-II diagnostics, and check engine light diagnoses. Their focus is on emissions testing and vehicle safety compliance rather than general auto repair. Located in San Francisco, California, Castro Smog aims to assist drivers with their emissions testing needs, making sure vehicles pass the required inspections for registration and environmental standards.

smog check vehicle inspection OBD testing San Francisco California

Services Offered

smog check
Vehicle Inspection
OBD-II Diagnostics
Check Engine Light Diagnosis
Emissions-related repairs

What Customers Say

Review Summary

Reviews for this business are not available online yet. Services encompass smog testing, vehicle inspections, and check engine diagnostics. Contact for details and appointments.

Hours Closed
Mon 9 am–5 pm
Tue 9 am–5 pm
Wed 9 am–5 pm
Thu 9 am–5 pm
Fri 9 am–5 pm
Sat 10 am–4 pm
Sun 10 am–4 pm

Frequently Asked Questions

Discover quick and comprehensive answers to common questions about our platform, listings, and services.

Castro Smog is located at 376 Castro St, San Francisco, California. You can visit them during their business hours for emissions testing services.
They offer smog check, vehicle inspection, OBD-II diagnostics, check engine light diagnosis, and emissions-related repairs.
Yes, Castro Smog provides smog check services in San Francisco, California, as part of their emissions testing services.
Their hours are Monday through Thursday from 9am to 5pm, Friday from 9am to 5pm, Saturday from 10am to 4pm, and Sunday from 10am to 4pm.
You can contact Castro Smog by phone at +1 415-863-7664 or visit their website for more information.
Appointments are not always required but are recommended to ensure timely service during busy times.
Service times at Castro Smog usually depend on the type of inspection, but generally it takes about 30 to 60 minutes.
Customers rate Castro Smog highly with a 4.4-star average based on 63 reviews. Drivers often mention quick service and professional staff. For the latest feedback, check recent reviews on Google or other review platforms.

Can't find what you're looking for? Contact our customer support team

Making the Most of Your Visit to Castro Smog

Choosing the right emissions testing or smog check station in San Francisco, California can save you time, reduce stress, and help ensure your vehicle passes its inspection on the first try. Castro Smog is one of the licensed smog check locations in the area, and preparing properly before your visit can make the process smoother.

Understanding California Smog Check Requirements

Emissions testing and smog check rules in California vary by vehicle type, registration ZIP code, and model year. Since requirements can differ even within San Francisco, confirm what applies to you before heading to Castro Smog. Our California emissions testing guide outlines current 2025 rules, exemptions, and testing intervals.

Before Your Smog Check

To help make your emissions test quick and successful, consider preparing the following:

  • Confirm your registration address requires testing.
  • Ensure your check engine light is off and no recent codes have been cleared.
  • Warm up your vehicle by driving 10 to 15 minutes before testing.
  • Bring your registration or renewal notice and a valid photo ID.

Why Reviews Matter

Customer experiences can vary, so reading feedback from other drivers can help you understand what to expect. Castro Smog currently has 63 reviews, which can provide insights into service quality, wait times, and professionalism.

"Clear communication and preparation make your smog check easier. Ask Castro Smog about wait times, retest policies, or emissions repair services if you have concerns."

Visit Checklist

  • 1
    Verify Certification

    Ensure Castro Smog is an active, licensed smog check station in California.

  • 2
    Check Reviews

    Read recent customer feedback from other San Francisco drivers to understand typical wait times and service quality.

  • 3
    Confirm Services

    Call ahead to confirm the types of smog checks and emissions tests offered and whether appointments are required.

  • 4
    Bring Required Documents

    Have your registration or renewal notice, ID, and any required paperwork ready when visiting the station.

  • 5
    Ask About Retest Policies

    Some stations offer discounted or free retests if your vehicle fails. Ask for details up front.

* This guide is for informational purposes only. Always confirm emissions testing requirements and smog check policies with your local California authorities.