Intoxalock Ignition Interlock

3.8
10 reviews

About

Car Inspection StationIntoxalock
Intoxalock is the no. 1 ignition interlock device brand in the U.S., and Intoxalock Ignition Interlock in Fredrick, MD is here to help you get back on the road after a DUI. Intoxalock has more locations than any other provider, and we can find an interlock installation location near you. We will help you understand MD interlock, or IID, laws and regulations. Our interlock installation locations are staffed with certified professionals who will install and service your car breathalyzers. For 30 years, Intoxalock has been a trusted interlock ignition device provider. Call now to talk to a MD expert.

Details

  • Credit cardAvailable
  • DebitAvailable
  • Onsite servicesAvailable

Location

Intoxalock Ignition Interlock
9025 Baltimore Rd, Fredrick, MD
21704, United States

Hours

Reviews

3.8
10 reviews
5 stars
7
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0
1 star
3
  • GG
    Gimbo
    Dec 18, 2025
    1.0
    I had my interlock installed at Frederick Auto Center and my stereo Bluetooth no linger is dupla yes and the AUX does not work. The radio and CD sound sometimes cuts off and on. Told tech about it and he said how does he know for sure it was working priori to installation. I just purchase the car 1 day before having it installed and it was working. I ask to uninstall it but they needed permission from Intoxilock. Also submitted a $200 rebate with Intoxalock months ago, nothing rebated as of yet.
  • JL
    J L
    Jun 25, 2025
    5.0
    Hands down the best. David really helped me in a pinch. I've used other places and will always return to them.
  • LS
    Lisa Sweitzer
    Apr 5, 2025
    5.0
    Even though I had it installed at wrong timing I felt shocked that they wanted a 150 dollars to remove it after only being in there for less than 24 hrs had I known mva in frederick md still had reasons for not fixing my DL I feel it was very unfair
  • JS
    Joseph Saba
    Dec 16, 2024
    1.0
    Worst Service. Device does not work with hybrid cars. Endless wait on phone, then recorded messages, then disconnect. Impossible to obtain service or just talk to a person.
  • JS
    Joseph Saba
    Dec 15, 2024
    1.0
    No manual available. CAR STARTS WITHOUT NEED TO USE DEVICE.

Frequently Asked Questions About Intoxalock Ignition Interlock

How does an interlock device work?

An ignition interlock device (IID) is a small breathalyzer installed in your vehicle to prevent it from starting if alcohol is detected on your breath. Before driving, you'll blow into the device. If your breath alcohol concentration (BrAC) is below the programmed limit, the car starts. Periodic retests occur during your trip to ensure continued compliance. To read more on Intoxalock, you can read our ignition interlock device guide.

What is the cost of an ignition interlock device?

The installation of an ignition interlock device, often called a car breathalyzer, typically costs between $70 and $150. This one-time fee is paid at the start of your lease and covers the service center's labor to install the device in your vehicle. Payment is made directly to the service center at the time of installation. For more on cost breakdowns, you can read our cost of ignition interlock device guide.