Smart Start Ignition Interlock
Brentwood Service Center2208 S Glenstone Ave
Springfield, MO 65804
#1 Ignition Interlock from $1.99/day*. Same-day installation available
Services at this Location:
- Installations
- Calibrations
Book an Installation
With the thousands of locations across the nation, 24/7 customer support, no hidden fees and the most reliable device on the market, Smart Start Ignition Interlock devices are hands-down the best way to get you back on the road fast.
Get a quick and easy IID installation with Smart Start! Get started today!
¡Obtenga una instalación rápida y fácil de IID con Smart Start! ¡Empieza hoy mismo!
Why Choose Smart Start Ignition Interlock?
From $1.99/Day* - No Long-Term Contracts
Bi-weekly payment options designed to fit your budget.
IGNITION INTERLOCK COSTS3,000+ Locations - Same Day Install
Quick installs by skilled technicians at convenient U.S. locations.
FIND A LOCATIONDiscreet, Easy-to-Use Devices
Reliable, hygienic devices with guided tests and easy English-Spanish switching.
SMART START DEVICES24/7 Knowledgeable State Program Experts
Multilingual support trusted by over 1 million people, ready when you need us.
TALK TO A PROGRAM ADVISOR
#1 Ignition Interlock Device Provider at Brentwood Service Center in Springfield
Considered the birthplace of Route 66, Springfield has catered to many visitors since the highway opening in 1926. This historic route created the most direct route for travelers from Chicago to the West coast and back with many site seeing stops along the way, one of them being Springfield, Missouri. Although this route is not used as frequently today, due to other highway developments, visitors can still experience the beauty this route holds. Especially now that the use of Ignition Interlocks help make the road a safer place.
Today, this transcontinental highway still offers a glimpse into why Springfield, Missouri is known as the “Queen City of the Ozarks”. But like everywhere else in Missouri, traffic safety is always a major concern for residents of Springfield. Our job is to provide the best Ignition Interlock Devices for Springfield, Missouri, and to help keep the highways safe from drunk drivers anytime, night or day. We take our responsibility as the Ignition Interlock leader very seriously.
Fast Ignition Interlock Installation in Springfield, Missouri
If you’ve got a DUI in Springfield, Missouri and need an Ignition Interlock Device (IID), Smart Start is your choice. We offer affordable Ignition Interlock rates, reliable devices, and a knowledgeable, multilingual customer care team ready to answer your questions around the clock.
It’s time to schedule an Ignition Interlock installation appointment at Brentwood Services in Springfield. Their specially trained technicians will get you back on the road quickly after a quality installation, including hands-on training. They’ll also work closely with you for ongoing maintenance and, finally, removal.
Schedule your installation now by calling (417) 521-0002 or by filling out our online form. You can find other convenient Smart Start locations in Springfield, Branson, Neosho or throughout Missouri.
Let us be your Ignition Interlock provider in Springfield, Missouri.
Frequently Asked Questions
The overall cost of an Ignition Interlock Device is a combination of installation fees, monthly service fees, and removal fees. Exact pricing varies by state. To get a quote today, call (800) 831-3299 to speak with a friendly Program Advisor.
Once you have scheduled your Ignition Interlock Device (IID) installation with Smart Start, you will need to bring the following to your IID installation appointment in Missouri:
- Two valid forms of identification—one of which should include a photo of you.
- Proof of residence.
- Any and all court documents that may be relevant to your Ignition Interlock Device requirement or your restricted driving period.
- Vehicle registration. If you do not own the vehicle on which you’re installing the Ignition Interlock Device, or if that vehicle is not registered to you, you will need to bring a letter of permission from the registered owner stating that you are allowed to install an Ignition Interlock Device on the vehicle.
- The vehicle on which you’ll be installing an Ignition Interlock Device (IID).
If you have any additional questions or concerns about the installation process or what is required for a successful installation, please don’t hesitate to call our customer care team at (800) 831-3299. You can also click on the chat window below to begin a discussion with one of our customer care advocates.
You may be able to service your Ignition Interlock Device at any Smart Start service center nationwide. However, we strongly suggest checking with your state authority in Missouri before seeking service outside of your state. Find the nearest Smart Start service center here.
Typically, you will need to service your Ignition Interlock Device (IID) once every 30-60 days or as determined by your jurisdiction in Missouri.
Ignition Interlock Device violation criteria can vary by state. Any and all of the following may constitute a violation in Missouri:
- A skipped rolling retest
- Tampering with the Ignition Interlock Device in any way
- Any breath sample that registers a BrAC above .02 percent
- Missing your scheduled IID service appointment
Learn more about Ignition Interlock Device violations.
In Missouri, you can pay for your Interlock Device calibration via credit card at the Smart Start service center at the time of calibration or via the online Client Portal.
Nearby Locations
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1950 S glenstone
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See What Everyone Says About Our Ignition Interlock
Excellent TrustScore Rating
December 23, 2025
"Easy and quick"
Jesus Z.
United States
December 23, 2025
"She was very fast accurate and friendly
"
Renee S.
United States
December 23, 2025
"Tasha Smith is what made my experience great! Considering the circumstances for myself, her approach was reassuring, and her commitment to her work made the experience efficient and positive. I sincerely appreciate her assistance!! God bless her abundantly❤️"
Ashley Arizola.
United States








