Maryland
Gaithersburg

Montgomery Shell Auto Service

Auto repair shop
Open · Closes 6:00 PM
4.0 (106 reviews)
455 N Frederick Ave, Gaithersburg, MD 20877
Call Now Visit Website

About

Montgomery Shell Auto Service is a trusted provider of emissions testing in Gaithersburg Maryland. They specialize in emissions testing services that help ensure your vehicle meets local standards. Customers appreciate their professional approach and clear communication during testing and inspections. Many reviews mention the efficient process and helpful staff, making it a convenient location for vehicle inspections. The service focuses on emissions testing and related repairs, offering a comprehensive solution for car owners in Gaithersburg Maryland seeking reliable testing services.

emissions testing vehicle inspection OBD testing Gaithersburg Maryland emissions repair

Services Offered

emissions testing
Vehicle Inspection
OBD-II Diagnostics
Check Engine Light Diagnosis
Emissions-related repairs
Catalytic Converter Service
Exhaust Repair
O2 Sensor Replacement

What Customers Say

Review Summary

Customers generally find Montgomery Shell Auto Service to be a helpful and professional location for emissions testing and vehicle inspections. While some mention the service style may vary, many reviews highlight efficient turnaround times and courteous staff. Pricing for tests is considered fair by clients, and the staff are often praised for their knowledge and willingness to explain procedures. Some reviews mention wait times during busy hours, but overall, most customers leave satisfied with their experience and trust their testing process. It is advisable to schedule appointments to avoid delays during peak times.

455 N Frederick Ave, Gaithersburg, MD 20877 +1 301-355-5255 Visit Website
Hours Open now
Mon 8:30 am–6 pm
Tue 8:30 am–6 pm
Wed • 8:30 am–6 pm
Thu 8:30 am–6 pm
Fri 8:30 am–6 pm
Sat Closed
Sun Closed
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Frequently Asked Questions

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

Montgomery Shell Auto Service is located at 455 N Frederick Ave, Gaithersburg, Maryland. It is easily accessible and provides various vehicle inspection and emissions testing services.
The business offers emissions testing, vehicle inspections, OBD-II diagnostics, check engine light diagnosis, emissions-related repairs including catalytic converters, exhaust repairs, and O2 sensor replacements.
Yes, Montgomery Shell Auto Service provides emissions testing and smog checks in Gaithersburg, Maryland, to meet state and local requirements for vehicle compliance.
Their operating hours are Monday through Friday from 8:30 am to 6 pm. They are closed on Saturday and Sunday, providing weekday service for vehicle inspections and emissions testing.
You can contact Montgomery Shell Auto Service by phone at +1 301-355-5255 or visit their website at http://www.sites.google.com/montgomeryshell.com/home for more information.
Appointments are recommended but not always required. It is best to call ahead to schedule your emissions testing or vehicle inspection to reduce wait times.
Service times typically range from about 30 minutes to an hour, depending on the type of inspection or repairs needed. During busy hours, shorter wait times are possible with appointments.
Customers describe Montgomery Shell Auto Service as professional and trustworthy. They appreciate the helpful staff and efficient service, making it a reliable choice for emissions testing and vehicle inspections.

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Making the Most of Your Visit to Montgomery Shell Auto Service

Choosing the right emissions testing or smog check station in Gaithersburg, Maryland can save you time, reduce stress, and help ensure your vehicle passes its inspection on the first try. Montgomery Shell Auto Service is one of the licensed smog check locations in the area, and preparing properly before your visit can make the process smoother.

Understanding Maryland Smog Check Requirements

Emissions testing and smog check rules in Maryland vary by vehicle type, registration ZIP code, and model year. Since requirements can differ even within Gaithersburg, confirm what applies to you before heading to Montgomery Shell Auto Service. Our Maryland 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. Montgomery Shell Auto Service currently has 106 reviews, which can provide insights into service quality, wait times, and professionalism.

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

Visit Checklist

  • 1
    Verify Certification

    Ensure Montgomery Shell Auto Service is an active, licensed smog check station in Maryland.

  • 2
    Check Reviews

    Read recent customer feedback from other Gaithersburg 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 Maryland authorities.