RoadGuard Ignition Interlock

4.1
35 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 Alexandria, Virginia at 4562 Eisenhower Ave. 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 Alexandria or any of our other convenient locations throughout the state of Virginia.

Location

RoadGuard Ignition Interlock
4562 Eisenhower Ave, Alexandria, VA
22304, United States

Hours

Reviews

4.1
35 reviews
5 stars
26
4 stars
0
3 stars
1
2 stars
1
1 star
7
  • LM
    Lester Mateo
    Dec 17, 2025
    1.0
    Last month this technician (Brian Young) mess up my cars and when I call Costumer service they told me they gonna call me to follow up and they never did it, this month I went back and he had the shop close, I nock and wait 15 minutes then I left, when I finally reach him because I want it to reschedule he told me he was inside, so I told him I want to reschedule because I had to drive 1 hr, and he say he need to charge $35 for rescheduling like is my foul.
  • HH
    holly hoxter
    Jul 22, 2025
    1.0
    They will tell you it won't mess your car up. I'd suggest googling the thousands of people who's cars got messed up from it. Count me as your first. If anyone knows of mechanics that specifically fix interlock mess ups, please let us know. Thanks
  • CM
    Carlos M
    Nov 21, 2024
    1.0
    Those guys deserved less than a star, they are very rude and unpolite , just go to another technician
  • JM
    Joel Melnick
    Apr 15, 2020
    5.0
    SOON & CESAR ALWAYS TAKE CARE OF ME AND HAD NO PROBLEMS WITH THE UNIT. GREAT GUYS HERE.

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.