RoadGuard Ignition Interlock

4.6
9 reviews
Man blowing into Draeger Interlock 7000 ignition interlock device inside a parked vehicle.

About

Safety Equipment Supplier
Fast. Easy. Discreet. RoadGuard Interlock gets you back on the road with a car breathalyzer that is FAST to warm up, EASY to use, and DISCREET so you can focus on the road ahead. As an approved Virginia Ignition Interlock provider, we have convenient ignition interlock installation near you in Manassas, Virginia at 9272 Mike Garcia Drive. With a proven track record, RoadGuard Interlock offers top-tier ignition interlock devices that won't damage your vehicle, professional installation, and reliable customer service. Call us today to schedule an appointment for your car breathalyzer installation, calibration, or removal in Manassas or any of our other convenient locations throughout the state of Virginia.

Location

RoadGuard Ignition Interlock
9272 Mike Garcia Drive, Manassas, VA
20109, United States

Hours

Reviews

4.6
9 reviews
5 stars
8
4 stars
0
3 stars
0
2 stars
0
1 star
1
  • EF
    Edin Fajardo
    Sep 26, 2025
    5.0
    I live out in this área of Manassas. The technician, Soon use to be here and always took care of me. Even called me sometimes to remind me I has regular service appt so shouldn't forget. Would want Soon back here but i'm glad he went back to his shop and now i'm done with this Interlock.
  • CC
    Cory
    Sep 6, 2019
    5.0
    Nick is a great guy & made this experience easier to deal with. He is very knowledgeable of the equipment, is very respectful, and a true professional.
  • HH
    H H
    Jul 12, 2019
    5.0
    Nick is the best,he is Always helpful and kind. answered all my questions thoroughly. I would definitely recommend this draeger location to anyone who needs interlock services.
  • LO
    Lake Ridge Orthodontics
    Sep 3, 2014
    1.0
    bad

Frequently Asked Questions About RoadGuard Ignition Interlock

How does an interlock device work?

When you start your vehicle, you have to blow into a mouthpiece that’s connected to the ignition interlock device, sometimes called an in-car breathalyzer. The interlock device will then measure your breath alcohol concentration (BrAC) and automatically determine whether your BrAC is low enough to allow the car to start. Any test you take, whether pass or fail, will be reported to your monitoring authority.

How much does an ignition interlock device cost?

Ignition interlock device costs vary because each state has different pricing regulations and device technology requirements. But in general, you can expect to pay between $50 and $150 to install the interlock device depending on vehicle type. After the initial interlock installation, you are required to pay a monthly rental or lease fee. On average, the cost to rent or lease an interlock device is between $50 and $150 per month. Call us at 1-833-545-0368 for pricing in your area.