California
Ontario

Comtires

Auto repair shop
Open · Closes 5:30 PM
4.8 (384 reviews)
1113 W Holt Blvd, Ontario, CA 91762
Call Now Visit Website

About

Comtires is a trusted provider of emissions testing services in Ontario, California. The shop offers comprehensive smog check services to help vehicle owners meet California state requirements. Known for their thorough testing and helpful staff, customers often appreciate the clear communication and efficient service during the emission inspections. The shop is well-equipped with modern technology and has received high ratings for customer satisfaction. Whether for a regular inspection or to address emissions-related issues such as O2 sensors or catalytic converters, Comtires provides professional assistance to ensure vehicles pass inspections and comply with environmental standards in Ontario, California.

smog check vehicle inspection obd testing Ontario California emissions testing vehicle repair

Services Offered

smog check
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 Comtires to be efficient and professional in their emissions testing services. Many appreciate the honest advice, clear communication, and quick turnaround times. While some mention wait times during peak hours, the majority feel the pricing reflects a thorough inspection and quality service. The staff is often praised for their helpful attitude and expertise, making the process of smog checking straightforward and trusted. Overall, reviews highlight a positive experience, with many returning customers for ongoing vehicle needs.

1113 W Holt Blvd, Ontario, CA 91762 +1 909-391-4276 Visit Website
Hours Open now
Mon 8 am–5:30 pm
Tue 8 am–5:30 pm
Wed • 8 am–5:30 pm
Thu 8 am–5:30 pm
Fri 8 am–5:30 pm
Sat Closed
Sun Closed
Claim This Business

Frequently Asked Questions

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

Comtires is located at 1113 W Holt Blvd, Ontario, California. It is easily accessible and provides a range of vehicle testing services.
Comtires offers smog check, vehicle inspection, OBD-II diagnostics, check engine light diagnosis, and emissions-related repairs in Ontario, California.
Yes, Comtires provides emissions testing and smog check services in Ontario, California, helping vehicles meet California air quality standards.
The hours of operation are Monday to Thursday from 8 am to 5:30 pm. They are closed on Saturdays and Sundays.
You can contact Comtires by phone at plus one 909-391-4276 or visit their website at https://comtires.com/ for more information.
Appointments are not always required but recommended for faster service. Walk-ins are welcomed during business hours.
Service times vary depending on the specific test or repair needed, but typical emissions and smog check services can be completed within a short visit.
Customers often praise Comtires for their helpful staff, efficient service, and fair pricing. Many return for ongoing vehicle needs.

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

Other Smog Check Stations in Ontario

AS

Avid Smog Inc.

5.0 · 7 reviews
Smog inspection station · 1409 W Holt Blvd Unit D1, Ontario, CA 91762

Avid Smog Inc. offers emissions testing and smog check services in Ontario, California. View hours and details for vehic...

smog check Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
PO

Porsche Ontario Service Center

5.0 · 640 reviews
Auto repair shop · 2262 Inland Empire Blvd, Ontario, CA 91764

Porsche Ontario Service Center offers emissions testing and smog check services in Ontario, California. View hours and d...

smog check Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
MT

Mendoza Test Only

5.0 · 5 reviews
Car inspection station · 216 S San Antonio Ave, Ontario, CA 91762

Mendoza Test Only offers reliable smog check and vehicle inspection services in Ontario, California. View hours and deta...

smog check Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
OS

Ontario Smog Check JC

5.0 · 40 reviews
Smog inspection station · 759 E Holt Blvd, Ontario, CA 91761

Ontario Smog Check JC offers emissions testing and smog check services in Ontario, California. View hours and details.

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

Making the Most of Your Visit to Comtires

Choosing the right emissions testing or smog check station in Ontario, California can save you time, reduce stress, and help ensure your vehicle passes its inspection on the first try. Comtires 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 Ontario, confirm what applies to you before heading to Comtires. 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. Comtires currently has 384 reviews, which can provide insights into service quality, wait times, and professionalism.

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

Visit Checklist

  • 1
    Verify Certification

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

  • 2
    Check Reviews

    Read recent customer feedback from other Ontario 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.