Top Smog

Smog inspection station
Opens at 8:00 AM
4.8 (108 reviews)
10591 Cherry Ave B, Fontana, CA 92337

About

Top Smog is a recognized provider of smog check and emissions testing in Fontana, California. The shop offers quick and reliable smog check services to help vehicles meet state regulations. Customers often praise the efficient service and friendly staff, with many reviews highlighting the thoroughness of the inspections and professionalism of the technicians. The clean facility and comfortable waiting area add to a positive testing experience. Whether you need a routine vehicle inspection or emissions-related repairs, Top Smog aims to provide cost-effective solutions. Located conveniently on Cherry Ave, it is a trusted choice for residents needing reliable emissions testing in Fontana.

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Services Offered

smog check
Vehicle Inspection
OBD-II Diagnostics
Check Engine Light Diagnosis
Catalytic Converter Service
Exhaust Repair
O2 Sensor Replacement

What Customers Say

Review Summary

Customers appreciate the fast and professional service at Top Smog. Many reviews mention how quick the process is and the friendly attitude of staff members. People also find pricing to be reasonable, noting that they often receive their smog check in less than 15 minutes. Some comments highlight the helpfulness of the technicians in explaining the results and offering advice on emissions repairs. While service styles may vary, most customers feel satisfied with the overall experience and recommend the shop for quick and dependable emissions testing.

Hours Closed
Mon 8 am–5 pm
Tue 8 am–5 pm
Wed 8 am–5 pm
Thu 8 am–5 pm
Fri 8 am–5 pm
Sat 8 am–2 pm
Sun Closed

Frequently Asked Questions

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

Top Smog is located at 10591 Cherry Ave B in Fontana, California. It is a dedicated emissions testing and smog check station.
Top Smog offers smog check, vehicle inspection, OBD-II diagnostics, check engine light diagnosis, and emissions-related repairs.
Yes, Top Smog provides smog check services and emissions testing in Fontana, California.
They operate Monday through Saturday, from 8am to 5pm, and close on Sundays.
You can contact Top Smog at +1 909-428-6530 or visit their website for more details.
Walk-ins are welcome, though appointments can be made for faster service.
Service times are typically around 10 to 15 minutes depending on the vehicle and workload.
Customers describe Top Smog as friendly, efficient, and professional, often mentioning quick service and reasonable prices. Many recommend it as a trusted local option.

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Making the Most of Your Visit to Top Smog

Choosing the right emissions testing or smog check station in Fontana, California can save you time, reduce stress, and help ensure your vehicle passes its inspection on the first try. Top 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 Fontana, confirm what applies to you before heading to Top 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. Top Smog currently has 108 reviews, which can provide insights into service quality, wait times, and professionalism.

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

Visit Checklist

  • 1
    Verify Certification

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

  • 2
    Check Reviews

    Read recent customer feedback from other Fontana 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.