California
Irwindale

Longden Test Only

Smog inspection station
Opens at 8:30 AM
4.9 (28 reviews)
110 E Longden Ave # C, Irwindale, CA 91706
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About

Longden Test Only is a provider of smog check services in Irwindale, California. They specialize in emissions testing and vehicle inspections. Customers have noted the quick and straightforward process, with staff being friendly and helpful. Many reviews highlight their professionalism and reasonable pricing for emissions tests. During peak times, some may experience wait times, but overall the service quality remains high. The shop caters to those needing quick testing or vehicle emissions repairs and diagnostics. Their focus is on ensuring vehicles meet emissions standards efficiently. Whether you need a smog check or repairs like catalytic converter and O2 sensor services, this business is well-known in the local community for reliable results.

smog check vehicle inspection OBD testing Irwindale California emissions testing

Services Offered

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

What Customers Say

Review Summary

Customers appreciate the efficient and friendly service at Longden Test Only. Many mention that the staff are helpful and the process for smog checks is quick. While some may experience wait times during busy periods, the overall feedback emphasizes professionalism and fair pricing. Visitors often highlight the helpfulness of the team in diagnosing emissions issues and providing good advice. The reviews reflect a high level of satisfaction with the testing experience, making it a trusted choice in Irwindale for emissions services. Negative comments about wait times are minimal and typically during peak hours, with most customers emphasizing the quality of service they receive.

110 E Longden Ave # C, Irwindale, CA 91706 +1 626-461-1304
Hours Closed
Mon 8:30 am–5:30 pm
Tue 8:30 am–5:30 pm
Wed • 8:30 am–5:30 pm
Thu 8:30 am–5:30 pm
Fri 8:30 am–5:30 pm
Sat 9 am–3 pm
Sun Closed
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Frequently Asked Questions

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

Longden Test Only is located at 110 E Longden Ave # C, Irwindale, California.
They offer smog check, vehicle inspection, OBD-II diagnostics, check engine light diagnosis, and emissions-related repairs.
Yes, Longden Test Only provides compliant smog check services in Irwindale, California, to help vehicles meet emissions standards.
Their hours are Monday to Friday from 8:30 am to 5:30 pm, and Saturday from 9 am to 3 pm. They are closed on Sundays.
You can contact Longden Test Only by phone at +1 626-461-1304 for appointments or inquiries.
Appointments are recommended but walk-ins are accepted, especially during non-peak hours.
Service typically takes about 10 to 15 minutes, depending on the vehicle and testing needs.
Customers often describe the staff as friendly and professional, with many returning for their emissions testing needs.

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Making the Most of Your Visit to Longden Test Only

Choosing the right emissions testing or smog check station in Irwindale, California can save you time, reduce stress, and help ensure your vehicle passes its inspection on the first try. Longden Test Only 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 Irwindale, confirm what applies to you before heading to Longden Test Only. 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. Longden Test Only currently has 28 reviews, which can provide insights into service quality, wait times, and professionalism.

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

Visit Checklist

  • 1
    Verify Certification

    Ensure Longden Test Only is an active, licensed smog check station in California.

  • 2
    Check Reviews

    Read recent customer feedback from other Irwindale 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.