Your Missouri Certified Ignition Interlock Provider

The Missouri Department of Transportation (MoDOT) has always been unwavering in its commitment to the safety and well-being of its road users. Notably, a leading ignition interlock company recently faced suspension within the state, emphasizing Missouri’s commitment to maintaining these high standards.

Amidst these industry shifts, RoadGuard Interlock still stands tall as a trusted ignition interlock provider. We take pride in our continuous certification in Missouri as a leading interlock company. Our dedication to upholding these standards reflects our commitment to safety and unmatched service quality.

One appointment is all it takes to complete the switch. Our team is ready for your call to schedule an appointment at (833) 659-1443.


Current Certified Missouri Interlock Providers

  • RoadGuard Interlock

  • Smart Start

  • Lifesafers

  • Alcohol Detection Systems

Current Suspended Missouri Interlock Providers

  • Intoxalock

Missouri ignition interlock providers

Ignition Interlock Services in Missouri

RoadGuard has several locations throughout the state of Missouri. Our state-wide location coverage ensures you have convenient, easy access for your ignition interlock service visits. 

Because RoadGuard Interlock is a certified ignition interlock provider in Missouri, we offer a comprehensive range of services tailored to meet the needs of Missouri residents. From the seamless installation of the interlock device to its careful removal, our team of experts ensures that every step is handled with precision and professionalism. Moreover, we also provide calibration services, guaranteeing that the ignition interlock devices are always functioning optimally. Missouri residents can rely on RoadGuard Interlock for dependable and efficient service, ensuring their journey towards safer driving is smooth and uncomplicated.

Free Installation and Free First Month for Our Ignition Interlock Device

RoadGuard Interlock is committed to serving the Missouri community and ensuring road safety for all. In our continuous effort to support residents and promote responsible driving, we are excited to announce a special offer available in select locations across Missouri.

Eligible customers can now benefit from free installation of our certified ignition interlock devices. Additionally, to provide even more value, we are waiving the fees for the first month of service. This is our way of making top-tier safety solutions more accessible and showcasing our unwavering dedication to the communities we serve.

Why Choose RoadGuard Interlock

In Missouri, when it comes to selecting an ignition interlock provider, RoadGuard Interlock stands out as a premier choice. Our dedication to ensuring both road safety and customer satisfaction is unmatched. We offer top-tier technology, ensuring that users receive an efficient, reliable, and user-friendly experience. Our team prides itself on providing exceptional customer service, ensuring that each client’s needs are met promptly and professionally.

Moreover, we understand the importance of discretion and normalcy; our devices are designed to be sleek and unobtrusive. With RoadGuard Interlock, Missouri residents can trust in a combination of advanced technology and a committed team, making their journey towards safer driving both smooth and dependable.

Our Ignition Interlock Device

The Drager Interlock® 7000 from RoadGuard Interlock features a rear mounted mouthpiece and sleek design, making the device less noticeable.  It has an easy-to-read color display with clear instructions and color-coded led notifications to indicate when a test is requested and whether it passed or failed.  No humming is required!  With one of the fastest startup times in the industry, the Draeger Interlock® 7000 is ready for a test in as little as 4 seconds!


The Dräger Interlock® 7000 offers advanced technologies to deliver accurate results, fast.


Draeger Interlock Device


Schedule Your Install

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