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Troy, MO

Troy, MO ignition interlock: 2 certified installers

2 in town, 12 more within reach of Troy

Verified · next review

2 certified centers in Troy, run by 2 providers. Addresses below — call ahead, most centers fit devices by appointment.

Centers here
2
Providers
2
Monthly · national guide
$70
national guide — Missouri publishes no figure
Where to go

Certified installation centers in Troy

Sorted by how far they are from the center of Troy. Where two providers work out of the same garage, we list the garage once with both names, and we include nearby towns when their center is closer than one of your own.

1
Eastern Missouri Alternative Sentencing Services
415 E Cherry Street, Troy, MO 63379 · under 1 mile from the center of Troy
Smart Start
2
Jb Audio
105 N Lincoln Drive, Troy, MO 63379 · 1 mile from the center of Troy
LifeSafer
3
Rotholland Towing & Automotive Services LLC outside Troy
28308 N Wind Dr, Wright City, MO 63390 · 13 miles from the center of Troy
IntoxalockLifeSaferLow Cost Interlock
4
E Mass outside Troy
104 South Market Street, Warrenton, MO 63383 · 15 miles from the center of Troy
Smart Start
5
Community Services of Missouri outside Troy
201 W Main Street, Warrenton, MO 63383 · 15 miles from the center of Troy
Smart Start
6
Mack's Customs outside Troy
1072 Wies Industrial Drive, Lake Saint Louis, MO 63367 · 17 miles from the center of Troy
LifeSafer
7
Sigs Automotive outside Troy
14 Elaine Dr, Ofallon, MO 63366 · 17 miles from the center of Troy
Intoxalock
8
United Car Care Center outside Troy
9356 Veterans Memorial Pkwy, Ofallon, MO 63366 · 17 miles from the center of Troy
Intoxalock
9
Big Boys Auto Toys LLC outside Troy
802 Midpoint Dr, O Fallon, MO 63366 · 18 miles from the center of Troy
Intoxalock
10
Missouri Ignition Interlock Devices outside Troy
810 Midpoint DR, O Fallon, MO 63366 · 18 miles from the center of Troy
LifeSaferLow Cost InterlockRoadGuard InterlockSmart Start
11
Missouri Ignition Interlock-o'fallon outside Troy
810 Midpoint Dr, O'fallon, MO 63366 · 18 miles from the center of Troy
LifeSaferLow Cost InterlockRoadGuard InterlockSmart Start
12
MISSOURI IGNITION INTERLOCK outside Troy
810 Midpoint Dr, O’fallon – O’fallon, MO 63366 · 18 miles from the center of Troy
LifeSaferLow Cost InterlockRoadGuard InterlockSmart Start
13
Eastern Missouri Alternative Sentencing Services outside Troy
201 Ofallon Plaza, O Fallon, MO 63366 · 18 miles from the center of Troy
Smart Start
14
Community Services of Missouri outside Troy
1175 Cave Springs Estates Drive, Saint Peters, MO 63376 · 25 miles from the center of Troy
Smart Start

Compiled from providers’ own public location directories and deduplicated to unique physical places (how we build this index). Listing is not an endorsement, and no center pays to appear.

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What Missouri requires

Missouri offers the interlock as a trade: fit the device and you drive immediately on a 90-day restricted privilege, or skip it and sit out a 30-day hard suspension first. The catch is the exit — your installer must certify you finished violation-free before the device comes off, and without that certificate you serve another 30 days.

  • First offense: 90 days on an immediate restricted privilege with the device (request within 15 days of the notice), against a 30-day suspension plus 60-day restricted privilege without it
  • Lockout threshold: Set by the alcohol setpoint in the state device standard (7 CSR 60-2.030); tampering and circumvention are separately defined violations
  • Program run by: Missouri Department of Revenue, Driver License Bureau

Full Missouri rules, providers and all 144 cities →

Lincoln County · 2020–2022

Why Missouri orders these devices

An interlock order is not a judgment about you personally — it is what the state does with every case of this kind, and the reason sits in the crash record.

Fatal crashes involving a drinking driver
13
of 37 fatal crashes in Lincoln County
Share of fatal crashes
35%
Missouri overall: 29%
People killed in those crashes
13
Lincoln County, 2020–2022

Source: NHTSA Fatality Analysis Reporting System, 2020–2022. The count covers fatal crashes where police recorded that a driver had been drinking, which is narrower than the federal 0.08 BAC measure and therefore understates the real figure. Lincoln County runs above the Missouri average, which is part of why the interlock requirement here is enforced the way it is. What the device changes is measurable too: a car fitted with one cannot be started over the limit, which is why the order attaches to driving privileges rather than to the sentence.

Nearby

Other cities in Missouri

If nothing in Troy works for you, a center one town over often has an earlier appointment — the price does not change.

Questions

Interlock questions in Troy

Where can I get an ignition interlock device installed in Troy, MO?

We index 2 certified installation points in Troy, run by Smart Start, LifeSafer. Addresses are listed above. Book with the provider your paperwork names, not the nearest one — a device approved in one state is not automatically approved in the next, and switching brands mid-term means a second installation fee.

How much does it cost to have an ignition interlock device installed in Missouri?

Missouri does not publish a price, so the honest answer is the national one: NHTSA puts installation at $70 to $90 and monitoring at about $70 a month, roughly $3 to $4 a day. Quotes in Troy will sit around that unless the provider is charging for something the state does not require.

Can I drink one beer and still start the car in Missouri?

Almost certainly not. Missouri does not print one fixed number in the statute — the level is set by the certifying agency in the device standard, typically between 0.02% and 0.025% BAC, far below the 0.08% driving limit. The device is not testing whether you are impaired, it is testing whether you drank. One drink shortly before a test is enough on most programs, and the fail is recorded whether or not you try again.

What does an ignition interlock device do?

An ignition interlock is a breath-alcohol tester wired into your car ignition. You blow into it before starting the engine; if your breath alcohol is above the state threshold, the engine will not start.

While you are driving, the device asks for rolling retests at random intervals. Every sample, skipped test, and lockout is recorded and sent to the agency monitoring your case.

All Missouri cities →Why Missouri requires it →What it costs in MissouriDUI lawyers in MissouriIf the device recorded a violation →

The class Missouri requires →The insurance filing in MissouriHow long it stays on your record →