Fast - Easy - Affordable


At Guardian Interlock, our mission is to get you back on the road again, all while offering the best price possible and unparalleled service. The Guardian Interlock system allows you to take control of your life again and keep it that way.

With 13 locations in Oklahoma to choose from, Guardian Interlock is the largest ignition interlock provider in the state of Oklahoma. Because each location is locally owned by Oklahomans, you get the one-on-one attention and customer service you deserve. No corporate run around or additional hidden fees charged by another party like some ignition interlock companies charge. We are upfront and at your service whether that’s at the time of your installation or when you are on the side of the road and in need of assistance.

-Guardian Interlock Oklahoma


Benefits of Choosing Guardian Interlock

  • Excellent Support - 24/7 support no matter where or when you need us.

  • Service Calls - the only provider who will come to you if needed.

  • Best Experience - treated the way you deserve to be treated from start to finish.

  • Affordable - best price in the state, no hidden fees plus referral discounts for current customers.

  • Convenient - 13 locations throughout Oklahoma plus nationwide should you move or are traveling.

  • Easy to Use - user friendly easy-to-read display.

  • Compact and Comfortable - one of the smallest on the market.

  • Reliable and Accurate - fuel-cell based devices for consistent accuracy.


Guardian Interlock is the largest provider in the state with 13 locations in Oklahoma to choose from and over 400 locations nationwide.

Oklahoma Locations

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Not only is our pricing the best, we also offer our current customers referral discounts to help you and your referral save your hard earned money. 

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