Ignition interlock installers in Missouri
350 installer locations in 158 Missouri cities, 80 of them verified against both the provider and Google Maps. Brands installed in Missouri: Intoxalock, Smart Start, LifeSafer, Low Cost Interlock, RoadGuard Interlock. 61 shops list Saturday hours and 11 offer mobile installation.
- Confirmed: provider page and Google Maps agree
- Listed: one source
- Unconfirmed: only a closed Google listing
6 shops are not on the map yet because we do not have coordinates for them. They still appear in the city lists below.
What it costs in Missouri
Published starting prices
| Provider | Install | Monthly lease | Calibration | Removal | 6 month floor | 12 month floor |
|---|---|---|---|---|---|---|
| Intoxalock | Not published | $75 to $105 | Not published | Not published | from $450* | from $900* |
| Smart Start | Not published | $59.70 | Not published | Not published | from $358* | from $716* |
| LifeSafer | Not published | $90 | Not published | Not published | from $540* | from $1,080* |
These are the lowest figures each provider publishes, so the 6 and 12 month totals are a floor, not a quote. They add the install fee, the monthly lease, calibration visits and removal where published. An asterisk means a fee is not published and is not included. Per day rates are counted as 30 days a month.
- Intoxalock: provider published intoxalock.com/state-requirements/missouri, October 27, 2026
- Smart Start: provider published smartstartinc.com/locations/missouri, October 27, 2026
- LifeSafer: provider published lifesafer.com/missouri/pricing, October 27, 2026
Reported totals usually run two to three times the published floor. Calibration visits, device protection, data fees and missed-appointment charges are rarely in the headline price.
What people report paying
Nobody has reported Missouri fees yet. If you have paid for an interlock here, the form below takes a minute.
Full cost breakdown for Missouri
Report your fees
Cities in Missouri (158)Show or hide
- Anderson (2)
- Appleton City (1)
- Arnold (1)
- Ava (3)
- Barnhart (1)
- Belton (2)
- Blue Springs (6)
- Bolivar (1)
- Boonville (3)
- Bourbon (1)
- Bowling Green (2)
- Branson (4)
- Braymer (1)
- Bridgeton (3)
- Brookfield (1)
- Brunswick (1)
- Buffalo (5)
- Butler (1)
- California (1)
- Camdenton (4)
- Cameron (1)
- Cape Girardeau (1)
- Carthage (1)
- Cassville (1)
- Chaffee (1)
- Clinton (3)
- Columbia (6)
- Conway (1)
- Cooter (1)
- Crane (1)
- Crystal City (3)
- Dexter (2)
- Diamond (1)
- Doniphan (1)
- El Dorado Springs (1)
- Eldon (1)
- Farmington (6)
- Fenton (3)
- Ferguson (1)
- Festus (1)
- Florissant (2)
- Foristell (1)
- Fredericktown (1)
- Fulton (1)
- Gladstone (1)
- Grain Valley (1)
- Grandview (1)
- Hallsville (1)
- Hannibal (2)
- Hardin (1)
- Harrisonville (1)
- Hazelwood (2)
- High Ridge (2)
- Hillsboro (3)
- Hollister (2)
- Holt (1)
- House Springs (1)
- Houston (1)
- Imperial (1)
- Independence (10)
- Jackson (3)
- Jefferson City (5)
- Joplin (3)
- Kahoka (1)
- Kaiser (2)
- Kansas City (13)
- Kearney (1)
- Kennett (3)
- Kirksville (5)
- Knob Noster (2)
- La Plata (1)
- Lake Saint Louis (2)
- Lamar (1)
- Lathrop (1)
- Lebanon (2)
- Lees Summit (1)
- Liberty (2)
- Linn (1)
- Louisiana (1)
- Macks Creek (1)
- Macon (1)
- Malden (1)
- Marceline (1)
- Marionville (2)
- Marshall (1)
- Maryland Heights (1)
- Maryville (1)
- Mayview (1)
- Merriam Woods Village (1)
- Mexico (2)
- Milan (2)
- Mineral Point (1)
- Moberly (2)
- Montgomery (1)
- Mountain Grove (3)
- Mountain View (1)
- Neosho (3)
- Nevada (3)
- New Madrid (1)
- Nixa (3)
- North Kansas City (2)
- O Fallon (6)
- Odessa (1)
- Osage Beach (3)
- Overland (2)
- Owensville (2)
- Ozark (3)
- Pacific (1)
- Parkville (1)
- Patterson (1)
- Pierce City (1)
- Platte City (2)
- Platte Woods (1)
- Plattsburg (1)
- Poplar Bluff (4)
- Princeton (1)
- Raytown (3)
- Reeds Spring (1)
- Republic (4)
- Rock Hill (1)
- Rock Port (1)
- Rockaway Beach (1)
- Rolla (6)
- Saint Charles (9)
- Saint Clair (1)
- Saint Joseph (4)
- Saint Louis (17)
- Saint Peters (6)
- Saint Robert (2)
- Salem (1)
- Sedalia (4)
- Shell Knob (1)
- Sikeston (4)
- Springfield (17)
- St Joseph (2)
- St. Ann (1)
- St. Paul (2)
- Stockton (1)
- Syracuse (1)
- Thayer (1)
- Trenton (1)
- Troy (2)
- Union (3)
- Unionville (1)
- University City (1)
- Valley Park (1)
- Van Buren (1)
- Wardell (1)
- Warrensburg (2)
- Warrenton (2)
- Warsaw (1)
- Washington (1)
- Waynesville (1)
- Wentzville (1)
- West Plaines (1)
- West Plains (5)
- Windsor (1)
- Wright City (1)
Anderson, MO
2 installers, 1 verified. Brands: Smart Start, LifeSafer.
Appleton City, MO
1 installer. Brands: Intoxalock.
Arnold, MO
1 installer. Brands: Intoxalock.
Ava, MO
3 installers. Brands: Intoxalock, Smart Start.
Barnhart, MO
1 installer. Brands: Smart Start.
Belton, MO
2 installers, 1 verified. Brands: Intoxalock, Smart Start, LifeSafer.
Blue Springs, MO
6 installers, 2 verified. Brands: Intoxalock, Smart Start, LifeSafer.
Bolivar, MO
1 installer. Brands: Smart Start, LifeSafer.
Boonville, MO
3 installers. Brands: Intoxalock, Smart Start.
Bourbon, MO
1 installer. Brands: LifeSafer.
Bowling Green, MO
2 installers, 1 verified. Brands: Intoxalock, LifeSafer, RoadGuard Interlock.
Branson, MO
4 installers, 1 verified. Brands: Intoxalock, Smart Start, LifeSafer.
Braymer, MO
1 installer, 1 verified. Brands: Smart Start, LifeSafer.
Bridgeton, MO
3 installers. Brands: Intoxalock, Smart Start.
Brookfield, MO
1 installer, 1 verified. Brands: Intoxalock, LifeSafer.
Brunswick, MO
1 installer. Brands: Intoxalock.
Buffalo, MO
5 installers, 1 verified. Brands: Intoxalock, Smart Start, LifeSafer.
Butler, MO
1 installer. Brands: Intoxalock.
California, MO
1 installer. Brands: Intoxalock.
Camdenton, MO
4 installers, 2 with mobile install. Brands: Intoxalock, Smart Start, LifeSafer.
Cameron, MO
1 installer. Brands: Intoxalock.
Cape Girardeau, MO
1 installer. Brands: LifeSafer.
Carthage, MO
1 installer. Brands: Intoxalock, LifeSafer.
Cassville, MO
1 installer. Brands: Intoxalock.
Chaffee, MO
1 installer. Brands: Intoxalock, LifeSafer.
Clinton, MO
3 installers, 1 verified. Brands: Intoxalock, Smart Start, LifeSafer.
Columbia, MO
6 installers, 3 verified. Brands: Intoxalock, Smart Start, LifeSafer, Low Cost Interlock, RoadGuard Interlock.
Conway, MO
1 installer, 1 verified. Brands: Intoxalock.
Cooter, MO
1 installer, 1 with mobile install. Brands: Intoxalock, LifeSafer.
Crane, MO
1 installer. Brands: Smart Start, LifeSafer.
Crystal City, MO
3 installers, 1 with mobile install. Brands: Intoxalock, Smart Start, LifeSafer.
Dexter, MO
2 installers. Brands: Intoxalock, Smart Start.
Diamond, MO
1 installer, 1 with mobile install. Brands: Intoxalock.
Doniphan, MO
1 installer. Brands: Smart Start.
El Dorado Springs, MO
1 installer. Brands: Intoxalock.
Eldon, MO
1 installer, 1 verified. Brands: Intoxalock, LifeSafer.
Farmington, MO
6 installers, 2 verified. Brands: Intoxalock, Smart Start, LifeSafer, RoadGuard Interlock.
Fenton, MO
3 installers, 2 verified. Brands: Intoxalock, Smart Start, LifeSafer, RoadGuard Interlock.
Ferguson, MO
1 installer. Brands: Smart Start.
Festus, MO
1 installer, 1 verified. Brands: LifeSafer, Low Cost Interlock.
Florissant, MO
2 installers. Brands: Intoxalock, Smart Start.
Foristell, MO
1 installer. Brands: Intoxalock.
Fredericktown, MO
1 installer. Brands: Intoxalock.
Fulton, MO
1 installer. Brands: Intoxalock.
Gladstone, MO
1 installer. Brands: Smart Start.
Grain Valley, MO
1 installer. Brands: Intoxalock.
Grandview, MO
1 installer. Brands: LifeSafer.
Hallsville, MO
1 installer, 1 verified. Brands: LifeSafer.
Hannibal, MO
2 installers, 1 verified. Brands: Intoxalock, LifeSafer.
Hardin, MO
1 installer. Brands: Intoxalock, Smart Start.
Harrisonville, MO
1 installer. Brands: Smart Start.
Hazelwood, MO
2 installers. Brands: Smart Start, Low Cost Interlock.
High Ridge, MO
2 installers, 1 verified. Brands: Intoxalock, LifeSafer, Low Cost Interlock.
Hillsboro, MO
3 installers. Brands: Smart Start, LifeSafer.
Hollister, MO
2 installers, 1 verified. Brands: Smart Start, LifeSafer.
Holt, MO
1 installer. Brands: Intoxalock.
House Springs, MO
1 installer. Brands: Intoxalock.
Houston, MO
1 installer. Brands: Smart Start.
Imperial, MO
1 installer. Brands: Intoxalock.
Independence, MO
10 installers, 3 verified. Brands: Intoxalock, Smart Start, LifeSafer, Low Cost Interlock, RoadGuard Interlock.
Jackson, MO
3 installers. Brands: Intoxalock, Smart Start, LifeSafer.
Jefferson City, MO
5 installers, 3 verified. Brands: Intoxalock, Smart Start, LifeSafer.
Joplin, MO
3 installers, 1 verified. Brands: Intoxalock, Smart Start, LifeSafer.
Kahoka, MO
1 installer. Brands: Intoxalock.
Kaiser, MO
2 installers. Brands: Intoxalock, Smart Start.
Kansas City, MO
13 installers, 5 verified, 1 with mobile install. Brands: Intoxalock, Smart Start, LifeSafer, Low Cost Interlock.
Kearney, MO
1 installer. Brands: Smart Start.
Kennett, MO
3 installers. Brands: Intoxalock, Smart Start, LifeSafer.
Kirksville, MO
5 installers, 1 verified. Brands: Intoxalock, Smart Start, LifeSafer.
Knob Noster, MO
2 installers, 1 verified. Brands: LifeSafer.
La Plata, MO
1 installer. Brands: Intoxalock.
Lake Saint Louis, MO
2 installers, 1 verified. Brands: Smart Start, LifeSafer.
Lamar, MO
1 installer. Brands: Intoxalock.
Lathrop, MO
1 installer. Brands: Intoxalock.
Lebanon, MO
2 installers, 1 verified. Brands: Intoxalock, Smart Start, LifeSafer.
Lees Summit, MO
1 installer. Brands: Smart Start.
Liberty, MO
2 installers, 1 verified. Brands: Intoxalock, Smart Start, LifeSafer.
Linn, MO
1 installer. Brands: Smart Start.
Louisiana, MO
1 installer. Brands: Intoxalock.
Macks Creek, MO
1 installer. Brands: Intoxalock.
Macon, MO
1 installer. Brands: Intoxalock, Smart Start.
Malden, MO
1 installer. Brands: LifeSafer.
Marceline, MO
1 installer. Brands: LifeSafer.
Marionville, MO
2 installers. Brands: Intoxalock, LifeSafer.
Marshall, MO
1 installer. Brands: Intoxalock.
Maryland Heights, MO
1 installer, 1 verified. Brands: Smart Start, LifeSafer, Low Cost Interlock, RoadGuard Interlock.
Maryville, MO
1 installer. Brands: Intoxalock.
Mayview, MO
1 installer. Brands: Intoxalock.
Merriam Woods Village, MO
1 installer, 1 with mobile install. Brands: Intoxalock.
Mexico, MO
2 installers, 1 verified. Brands: Intoxalock, LifeSafer.
Milan, MO
2 installers. Brands: Intoxalock.
Mineral Point, MO
1 installer. Brands: Intoxalock, LifeSafer.
Moberly, MO
2 installers, 1 verified. Brands: Intoxalock, Smart Start, LifeSafer.
Montgomery, MO
1 installer. Brands: Smart Start.
Mountain Grove, MO
3 installers, 1 verified. Brands: Intoxalock, Smart Start, LifeSafer.
Mountain View, MO
1 installer. Brands: Intoxalock.
Neosho, MO
3 installers, 1 verified. Brands: Intoxalock, Smart Start, LifeSafer.
Nevada, MO
3 installers. Brands: Intoxalock, Smart Start, LifeSafer.
New Madrid, MO
1 installer. Brands: LifeSafer.
Nixa, MO
3 installers, 1 verified. Brands: Intoxalock, Smart Start, LifeSafer.
North Kansas City, MO
2 installers. Brands: Smart Start.
O Fallon, MO
6 installers, 1 verified. Brands: Intoxalock, Smart Start, LifeSafer, Low Cost Interlock, RoadGuard Interlock.
Odessa, MO
1 installer, 1 verified. Brands: Intoxalock, Smart Start, LifeSafer.
Osage Beach, MO
3 installers, 1 verified. Brands: Intoxalock, Smart Start, LifeSafer.
Overland, MO
2 installers, 1 verified. Brands: Smart Start, LifeSafer.
Owensville, MO
2 installers. Brands: Intoxalock, Smart Start, LifeSafer.
Ozark, MO
3 installers. Brands: Intoxalock, Smart Start, LifeSafer.
Pacific, MO
1 installer, 1 verified. Brands: Intoxalock, LifeSafer.
Parkville, MO
1 installer, 1 verified. Brands: Smart Start, LifeSafer.
Patterson, MO
1 installer. Brands: LifeSafer.
Pierce City, MO
1 installer, 1 with mobile install. Brands: Intoxalock, LifeSafer.
Platte City, MO
2 installers. Brands: Intoxalock, Smart Start.
Platte Woods, MO
1 installer. Brands: Intoxalock, Smart Start.
Plattsburg, MO
1 installer. Brands: Intoxalock.
Poplar Bluff, MO
4 installers. Brands: Intoxalock, Smart Start, RoadGuard Interlock.
Princeton, MO
1 installer. Brands: Intoxalock, Smart Start, LifeSafer.
Raytown, MO
3 installers, 1 verified. Brands: Intoxalock, LifeSafer, Low Cost Interlock.
Reeds Spring, MO
1 installer, 1 verified. Brands: LifeSafer.
Republic, MO
4 installers, 2 verified. Brands: Intoxalock, Smart Start, LifeSafer, RoadGuard Interlock.
Rock Hill, MO
1 installer, 1 verified. Brands: Smart Start.
Rock Port, MO
1 installer. Brands: LifeSafer.
Rockaway Beach, MO
1 installer. Brands: Smart Start.
Rolla, MO
6 installers. Brands: Intoxalock, Smart Start, LifeSafer.
Saint Charles, MO
9 installers, 1 verified. Brands: Intoxalock, Smart Start.
Saint Clair, MO
1 installer. Brands: Intoxalock.
Saint Joseph, MO
4 installers, 2 verified. Brands: Intoxalock, Smart Start, LifeSafer.
Saint Louis, MO
17 installers, 1 verified. Brands: Intoxalock, Smart Start, LifeSafer.
Saint Peters, MO
6 installers. Brands: Intoxalock, Smart Start.
Saint Robert, MO
2 installers. Brands: Intoxalock, Smart Start.
Salem, MO
1 installer, 1 verified. Brands: Intoxalock, LifeSafer.
Sedalia, MO
4 installers. Brands: Intoxalock, LifeSafer.
Shell Knob, MO
1 installer, 1 with mobile install. Brands: Intoxalock, LifeSafer.
Sikeston, MO
4 installers, 1 verified. Brands: Intoxalock, Smart Start, LifeSafer.
Springfield, MO
17 installers, 7 verified, 1 with mobile install. Brands: Intoxalock, Smart Start, LifeSafer, Low Cost Interlock, RoadGuard Interlock.
St Joseph, MO
2 installers. Brands: LifeSafer.
St. Ann, MO
1 installer, 1 verified. Brands: LifeSafer.
St. Paul, MO
2 installers. Brands: LifeSafer.
Stockton, MO
1 installer. Brands: Intoxalock.
Syracuse, MO
1 installer, 1 verified. Brands: LifeSafer.
Thayer, MO
1 installer, 1 with mobile install. Brands: Intoxalock.
Trenton, MO
1 installer, 1 verified. Brands: Intoxalock, LifeSafer.
Troy, MO
2 installers, 1 verified. Brands: Smart Start, LifeSafer.
Union, MO
3 installers, 2 verified. Brands: Intoxalock, Smart Start, LifeSafer.
Unionville, MO
1 installer. Brands: Intoxalock.
University City, MO
1 installer. Brands: Smart Start.
Valley Park, MO
1 installer. Brands: Intoxalock, Smart Start.
Van Buren, MO
1 installer. Brands: Smart Start.
Wardell, MO
1 installer. Brands: Intoxalock.
Warrensburg, MO
2 installers. Brands: Intoxalock, Smart Start, LifeSafer.
Warrenton, MO
2 installers. Brands: Smart Start.
Warsaw, MO
1 installer. Brands: Smart Start.
Washington, MO
1 installer. Brands: RoadGuard Interlock.
Waynesville, MO
1 installer. Brands: Smart Start, LifeSafer.
Wentzville, MO
1 installer. Brands: Smart Start.
West Plaines, MO
1 installer. Brands: Intoxalock.
West Plains, MO
5 installers, 2 verified. Brands: Intoxalock, Smart Start, LifeSafer.
Windsor, MO
1 installer. Brands: LifeSafer.
Wright City, MO
1 installer, 1 verified. Brands: Intoxalock, Smart Start, LifeSafer.