RoadGuard Ignition Interlock

4.9
142 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 Sterling, Virginia at 201 Davis 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 Sterling or any of our other convenient locations throughout the state of Virginia.

Location

RoadGuard Ignition Interlock
201 Davis Drive, Sterling, VA
20164, United States

Hours

Reviews

4.9
142 reviews
5 stars
139
4 stars
0
3 stars
0
2 stars
0
1 star
3
  • BT
    Brent Thomas
    Jul 17, 2025
    5.0
    Thanks to the technician Khanh, the painful process was smooth and easy. When first started, there were some hiccups, but with the explanation and patience, the tech walked me through. Hopefully don’t have to come back here ( even though the tech was nice and friendly )
  • SB
    Stephen Bettius
    Oct 13, 2022
    5.0
    Great service from Emad always willing to work with my schedule and always polite
  • RB
    Roman Bondari
    Dec 4, 2020
    5.0
    Emad was very helpful and very professional during my use of Draeger services. He was flexible to schedule me around my work hours and availability. Definitely made this experience less painful. Thank you!
  • JH
    Jonathan Harding
    Jun 7, 2019
    5.0
    Emad was the best. He took great care of me. Not the best circumstances but always a pleasant demeanor and made things nice light and relaxed. Any time I had an issue he was happy to help or find me the person who could.
  • AA
    Andre Adams
    Feb 6, 2019
    5.0
    Draeger has the best interlock system I seen by far. Customer service was amazing, and Emad is extremely friendly and understanding. I highly recommend the Sterling location.

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.