Guardian Interlock

Intoxalock is the no. 1 ignition interlock device brand in the U.S., and Intoxalock Ignition Interlock in Missouri City, 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.

LifeSafer Ignition interlock is the leading ignition interlock provider nationwide and home to “No-Call Install”, the first fully online installation booking tool. LifeSafer’s locations are TX certified and our expert technicians at 13955 Murphy Rd can handle all your installation and calibration needs. LifeSafer has over 30 years of ignition interlock experience and has helped over 1.5 million people get back on the road again.

Smart Start is the #1 Ignition Interlock Device provider in Stafford with same-day installation available for your vehicle. We’re a convenient and affordable Texas IID supplier located in Northwestern Stafford at 4150 Bluebonnet Dr with mobile services and price matching available to give you the best value. Our reliable customer service experts and licensed technicians will make your IID device experience quick & low stress. Smart Start is ready to schedule your Ignition Interlock Device installation in Stafford. Call our Northwestern Stafford location & talk to a Program Advisor, who will help you schedule an appointment for your IID installation, calibration or removal.