Smart Start Ignition Interlock

Kevin’s Auto Repair
15290 Veterans Memorial Pkwy
Wentzville, MO 63385

#1 Ignition Interlock from $1.99/day*. Same-day installation available

Book your install now

Hours of Operation:

Day	1st Hour Block	2nd Hour Block
Sun	Closed
Mon	9:00am - 4:00pm
Tue	9:00am - 4:00pm
Wed	9:00am - 4:00pm
Thu	9:00am - 4:00pm
Fri	9:00am - 4:00pm
Sat	Closed

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!

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By providing your information and clicking “Book Your Install Now”, I authorize 1A Smart Start LLC and it’s franchisees’ to contact me at the phone number and/or email address above via phone, text, and/or email using multiple and periodic autodialed and prerecorded calls and texts for marketing purposes. Not a condition for purchase. Message and data rates may apply. To opt-out of texts, replay “STOP,” and to opt-out of emails click the email unsubscribe link.

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By providing my information and clicking “Book Your Install Now,” I authorize [Insert Legal Name of Franchisee, distributor, or affiliate] to contact me at the phone number above via phone and/or text using multiple and periodic autodialed and prerecorded calls and texts for marketing purposes. Not a condition for purchase. Message and data rates may apply. To opt-out of texts, reply “STOP”.

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Fast-Track Your Installation

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Preferences are subject to change based on availability.

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This field is for validation purposes and should be left unchanged.

Or Call (636) 445-3587 Now!

¡O llame ahora al (636) 445-3587!

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 COSTS

3,000+ Locations - Same Day Install

Quick installs by skilled technicians at convenient U.S. locations.

FIND A LOCATION

Discreet, Easy-to-Use Devices

Reliable, hygienic devices with guided tests and easy English-Spanish switching.

SMART START DEVICES

24/7 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 Kevin's Auto Repair in Wentzville

One of the most notable things about Wentzville, Missouri, is its remarkable growth over the past two decades. The 2010 U.S. Census puts Wentzville’s population at 29,070. That figure is expected to jump to 44,775 in the 2020 census, making it the fastest growing city in Missouri.

Wentzville’s proximity to St. Louis is a major factor in its rapid growth. Although it's about 40 miles outside of its bigger counterpart, the picturesque city is the perfect distance for commuters. But whether you live in a suburb like Wentzville or a bustling metro area like St. Louis, Smart Start provides the cheapest Ignition Interlock device in Wentzville, Missouri with convenient installation near you.

Ignition Interlock Devices in Wentzville, Missouri

If you’re facing a DWI in Wentzville or the surrounding area, you can trust Kevin’s Auto Repair for quick, convenient Ignition Interlock installation that will get you back on the road in a hurry. And you can count on Smart Start for the support you need as you go through your Missouri DWI requirement, including:

Compact, discreet Ignition Interlock Devices.
Low pricing, with no hidden fees or gimmicks.
24/7/365 customer care by knowledgeable, compassionate agents.

We're your Ignition Interlock Device experts, from installation to removal and everything in between. We're dedicated to providing unsurpassed customer service, whether it's in Wentzville or worldwide.

Schedule Your Installation Today

Call (636) 445-3587 now to schedule an appointment for the cheapest Ignition Interlock installation. You can also fill out our online form, or find other convenient Smart Start locations in Wentzville, O'Fallon, St. Peters or throughout Missouri. We know you want to get back on the road as soon as possible, without breaking the bank.

We do more than just provide Ignition Interlock Devices in Wentzville, Missouri. We're your partner as you complete your DWI requirement. Call today and find out how Smart Start can help you.

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

Missouri Ignition Interlock Devices

810 Midpoint Dr.
O Fallon, MO 63366

CLOSED – Opens at 9:00am Tu

Services at this Location:

Installations, Calibrations

(636) 202-3086 More Details

Eastern Missouri Alternative Sentencing Services

201 OFallon Plaza
O Fallon, MO 63366

OPEN NOW – Closes at 5:00pm

Services at this Location:

(636) 345-9325 More Details

Rotholland Towing & Automotive Services LLC

28308 N Wind Dr
Wright City, MO 63390

OPEN NOW – Closes at 5:00pm

Services at this Location:

Installations, Calibrations

(636) 202-3077 More Details

See What Everyone Says About Our Ignition Interlock

Excellent TrustScore Rating

July 11, 2025

"Bill was extremely knowledgeable and helpful. The RRL verification with PennDOT is a great service. "

A M.

United States

July 11, 2025

"I just wanted to take a moment to give a huge shoutout to Bill, who helped me over the phone with my Smart Start interlock device. From the very beginning, he was patient, professional, and incredibly kind. What stood out most was how understood and supported he made me feel. Navigating something like this can be overwhelming, but Bill explained everything clearly, answered all my questions, and made sure I felt confident moving forward. He truly went above and beyond to help me out. It’s not often you come across customer service like that these days. Thank you, Bill, for your outstanding support and for making a stressful situation so much easier to manage. You made a real difference!"

A K.

United States

July 11, 2025

"Excellent. Service. Knowledgable and friendly "

Rocco D.

United States

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Find a location near you!

Smart Start Ignition Interlock

Hours of Operation:

Services at this Location:

Book an Installation

Fast-Track Your Installation

Want to speed up the installation appointment process?
We can get you a quote faster if you fill out the information below.

Or Call (636) 445-3587 Now!

¡O llame ahora al (636) 445-3587!

From $1.99/Day* - No Long-Term Contracts

3,000+ Locations - Same Day Install

Discreet, Easy-to-Use Devices

24/7 Knowledgeable State Program Experts

#1 Ignition Interlock Device Provider at Kevin's Auto Repair in Wentzville

Ignition Interlock Devices in Wentzville, Missouri

Schedule Your Installation Today

Frequently Asked Questions

Nearby Locations

Missouri Ignition Interlock Devices

Services at this Location:

Eastern Missouri Alternative Sentencing Services

Services at this Location:

Rotholland Towing & Automotive Services LLC

Services at this Location:

Get Started

Locations

Support

Partners

Contact Us

Find a location near you!

Smart Start Ignition Interlock

Hours of Operation:

Services at this Location:

Book an Installation

Fast-Track Your Installation

Want to speed up the installation appointment process?We can get you a quote faster if you fill out the information below.

Or Call (636) 445-3587 Now!

¡O llame ahora al (636) 445-3587!

Why Choose Smart Start Ignition Interlock?

From $1.99/Day* - No Long-Term Contracts

3,000+ Locations - Same Day Install

Discreet, Easy-to-Use Devices

24/7 Knowledgeable State Program Experts

#1 Ignition Interlock Device Provider at Kevin's Auto Repair in Wentzville

Ignition Interlock Devices in Wentzville, Missouri

Schedule Your Installation Today

Frequently Asked Questions

How much does an Ignition Interlock Device cost in Missouri? What are the fees?

What do I need to bring to my installation in Wentzville?

Where can I go for service? Anywhere, or just within my state?

How often does my IID need to be serviced in Missouri?

What constitutes a violation in Missouri?

How can I pay for calibration?

Nearby Locations

Missouri Ignition Interlock Devices

Services at this Location:

Eastern Missouri Alternative Sentencing Services

Services at this Location:

Rotholland Towing & Automotive Services LLC

Services at this Location:

See What Everyone Says About Our Ignition Interlock

Get Started

Locations

Support

Partners

Contact Us

Want to speed up the installation appointment process?
We can get you a quote faster if you fill out the information below.