Intoxalock is the no. 1 ignition interlock device brand in the U.S., and Intoxalock Ignition Interlock in Houston, TX 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 TX 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 TX expert.
Well i make a bad review yestuday now i get a phone call from intoxalock manager i a can said now they help me wich all my problem and i get very satisfied wich the situation and change my review and give they a 5 stars as a costumer every body is looking for a good service and they show me how importan we are as a costumer thanks intoxalaock to make us feel importan to you completely satisfied wich your service now thanks again
AV
Angie Vertti
Jun 27, 2025
1.0
The Customer Service is the worst one. There’s people disrespectful. Hang up on. You do not answer. Your questions are very rude, and there’s always different people answering you. Everyone is telling you different answer when you asked to speak with a supervisor, they never put you with I would not recommend this company to anybody
TM
Tony Maldonado
Mar 30, 2024
5.0
Did a great job
DR
David Regalado
Mar 18, 2024
1.0
Gave me a device that wasn't court ordered, I should be refunded all money for install and uninstall of unit. This happens to alot of people
Update!!!! 3/25/2024
Intoxalock rep got in touch with me and was able to resolve the issue promptly and in a happy manner. I appreciate their ability to rectify the situation, thank you Isaias!
UPDATE!!!!!! 7/2/24
Well I've been getting a biweekly charge from Intoxalock, after researching through the court I shouldn't be charge anything, tried reaching out to Isaias no reply,
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.
How do I use my interlock device?
Using an IID is simple. To start your vehicle, blow into the device as directed. If the device detects no alcohol, your car will start. You may be prompted for "rolling retests" while driving, where you’ll blow into the device again to confirm compliance. How-to videos are also available on the Intoxalock mobile app.
Where do I get an ignition interlock device?
Ignition interlock devices can be installed at certified service centers nationwide. Intoxalock offers a convenient network of locations and helps you schedule an installation appointment near you. Visit our Intoxalock locations page or call us to find the nearest service center and begin the installation process.
How long will my installation take?
Installing an ignition interlock device typically takes 1-2 hours, depending on your vehicle type. Certified technicians ensure the device is properly installed and provide you with training on how to use it. Contact Intoxalock for an appointment and an accurate time estimate for your installation.
What happens if I fail a breath test on my ignition interlock device?
If you fail a breath test, your vehicle will not start, and the device will log the event. Depending on your state’s regulations, multiple failed tests may trigger additional penalties, such as lockouts or reporting to your monitoring authority. Intoxalock devices allow you to retest after a short wait if alcohol is no longer detected. Always follow your state’s guidelines to remain compliant.
Can I install an ignition interlock device in a vehicle I don’t own?
Yes, in most cases, you can install an ignition interlock device in a vehicle you regularly drive, even if you’re not the registered owner. However, the vehicle owner must provide consent for the installation. Intoxalock works with you and the owner to ensure compliance with state regulations and the successful setup of the device.
What should I do if my ignition interlock device locks me out?
If your ignition interlock device locks you out, it’s usually due to missed tests, failed tests, or state-specific requirements. Intoxalock offers a simple lockout override process in most cases to help you get back on the road quickly. Contact Intoxalock customer support for assistance and to understand the steps needed to resolve the issue.
What services does Intoxalock Ignition Interlock provide in Houston, TX?
They install, calibrate, and remove ignition interlock devices (IIDs) to help you comply with DUI requirements and get back on the road.
How does an ignition interlock device (IID) work?
An IID is a breathalyzer installed in your vehicle that prevents it from starting if alcohol is detected on your breath. You'll blow into the device before driving, and periodic retests occur during your trip.
What is the typical installation cost for an ignition interlock device at Intoxalock?
Installation usually costs between $70 and $150 as a one-time fee, paid at the start of your lease, covering the service center labor for device installation.
Where can I install an ignition interlock device near Houston, TX?
Intoxalock has over 5,000 service centers including their Houston location at 4005 Vivian Road. They can help you schedule installation appointments nearby.
What are the business hours for the Intoxalock location on Vivian Road?
They are open Monday, Tuesday, Wednesday, and Friday from 8:00 AM to 8:00 PM; Thursday and Saturday from 8:00 AM to 5:00 PM; and are closed on Sundays.
How can I use the Intoxalock ignition interlock device once installed?
To start your car, blow into the IID as directed. If no alcohol is detected, the vehicle starts. The device may prompt for rolling retests during your drive.
What should I do if my ignition interlock device locks me out?
Lockouts can result from missed or failed tests. Intoxalock provides a lockout override process—contact their customer support for assistance.
Are there any nearby automotive repair shops around Intoxalock in Houston?
Yes, Ringo & Sons, located near Intoxalock, offers automotive repair and oil change services, which may be convenient for vehicle maintenance before or after IID installation.
What dining options are available near Intoxalock on Vivian Road?
Nearby restaurants include Pappas Bar-B-Q and Raising Cane's, great spots to grab a meal before or after your visit to Intoxalock.
Are there gyms close to Intoxalock where I can work out?
Yes, Curves and Undr Construction Fitness gyms are near Intoxalock, offering convenient options for fitness in the area.