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Ignition Interlock
in Chesterfield, Missouri

Ride with Smart Start
& get back on the road

  • The leading Ignition Interlock Program in Missouri
  • Low-price, with no hidden fees
  • Fast installation with same-day available
  • 24/7/365 Multilingual Customer Care

It only takes a moment to get your personalized quote.

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Ignition Interlock in Missouri: We're Always Here for You

If you’re searching for a car breathalyzer after a DWI or DUI, we offer the best Ignition Interlock Device in Chesterfield, Missouri. We will help you successfully complete your car breathalyzer requirement with support from caring, compassionate specialists who understand everything you need to know about Ignition Interlock in Missouri.

We’ll be with you right from the beginning with the services and support you need. The cheapest Ignition Interlock program in Chesterfield, Missouri, includes 24/7/365 Customer Care that makes your Ignition Interlock experience as easy as possible.

Trust Smart Start and schedule an installation appointment now in Chesterfield, Missouri, or at any of our Missouri service centers.

Ignition Interlock Locations in Chesterfield, Missouri

Let's get started with an installation in Chesterfield, Missouri that fits your schedule, at one of the convenient locations below.

  • Benchmark Complete Auto

    7 Vance Road
    Valley Park, MO 63088

    Installation & Service Appointments

  • Eastern Missouri Alternative Sentencing Services

    8 Westbury Drive
    Saint Charles, MO 63301

    Schedule your installation here

  • Eastern Missouri Alternative Sentencing Services

    201 OFallon Plaza
    O Fallon, MO 63366

    Schedule your installation here

  • Eastern Missouri Alternative Sentencing Services

    3819 S Grand Blvd
    Saint Louis, MO 63118

    Schedule your installation here

  • Eastern Missouri Alternative Sentencing Services

    9553 Lackland Road
    Overland, MO 63114

    Schedule your installation here

  • Missouri Ignition Interlock Devices

    810 Midpoint Dr.
    O Fallon, MO 63366

    Installation & Service Appointments

  • Missouri Ignition Interlock Devices

    11848 Dorsett Rd
    Maryland Heights, MO 63043

    Installation & Service Appointments

  • JT's Automotive

    7415 Eugene Ave
    Saint Louis, MO 63116

    Installation & Service Appointments

  • Community Services of Missouri

    1175 Cave Springs Estates Drive
    Saint Peters, MO 63376

    Schedule your installation here

  • Eric Boehmer Law

    1603 Boone's Lick Road
    Saint Charles, MO 63301

    Schedule your installation here

  • Community Services of Missouri

    7231 N Lindberg Blvd
    Hazelwood, MO 63042

    Schedule your installation here

  • Community Services of Missouri

    8980 Watson Road
    Saint Louis, MO 63119

    Schedule your installation here

  • Franks Auto Repair

    7415 Eugene Avenue
    Suite 4052
    Saint Louis, MO 63116

    Schedule your installation here

  • Rock Hill to County Tire & Auto Service

    9730 Manchester Rd
    Rock Hill, MO 63119

    Installation & Service Appointments

Why Choose Smart Start Ignition Interlock in Missouri?

No equipment to buy. No hidden charges. No long-term contracts.

We offer the best Ignition Interlock Devices at the lowest price. You’ll know the cost from beginning to end, with no high pressure or double-talk.


Fast, convenient installation. Get an appointment that fits your schedule.

We’ll find a service center near you, often with a same-day appointment. Our specially trained technicians are committed to customized, quality installation.


Old, new, gas, electric, high performance, or low profile. We install on all.

Whether you’ve got an older vehicle or the latest electric model, there’s nothing our technicians can’t handle. Our car breathalyzers are the perfect fit for whatever you drive.


Small, discreet, easy to use. Ignition Interlock shouldn’t be difficult.

Our attractive, handheld car breathalyzer is about the size of a cellphone, with an intuitive keypad and display. You’ll get hands-on training to make sure that it’s easy to blow and go.


Quick calibration. Easy service. More drive-through locations than anyone.

Missouri will require your Ignition Interlock Device to be serviced and calibrated on a regular basis. Our calibration appointments usually take about 15 minutes at any location that’s handy for you.


Flexible payment options. Easy autopay. Take advantage of our Client Portal.

Everyone’s budget is different. That’s why we offer weekly, monthly, or bi-monthly payments, plus an autopay option. Set it up through our Client Portal app (or go online).


You’ve got questions. We’ve got answers. 24/7/365 multilingual Customer Care.

There’s always somebody who can help when you have a question about your car breathalyzer, your account, monitoring laws, or anything else with your Ignition Interlock in Chesterfield, Missouri.

Excellent TrustScore of 4.7 out of 5