Find ignition interlock installers near you
11,329 installer locations in 5,106 cities across 51 states. Compare the brands each shop carries, check hours and Saturday availability, and call before you go.
Find installers by state
Each state page has a map, filters and a city by city list.
Most installers
All states
- Alabama52
- Alaska67
- Arizona400
- Arkansas270
- California1,051
- Colorado356
- Connecticut215
- Delaware11
- District of Columbia1
- Florida832
- Georgia126
- Hawaii27
- Idaho81
- Illinois475
- Indiana176
- Iowa267
- Kansas241
- Kentucky148
- Louisiana190
- Maine65
- Maryland354
- Massachusetts222
- Michigan177
- Minnesota313
- Mississippi84
- Missouri350
- Montana56
- Nebraska178
- Nevada117
- New Hampshire90
- New Jersey185
- New Mexico86
- New York485
- North Carolina155
- North Dakota10
- Ohio212
- Oklahoma164
- Oregon120
- Pennsylvania723
- Rhode Island60
- South Carolina135
- South Dakota14
- Tennessee224
- Texas999
- Utah54
- Vermont69
- Virginia74
- Washington196
- West Virginia27
- Wisconsin292
- Wyoming53
How we verify each listing
We crawl the location pages that Intoxalock, Smart Start and LifeSafer publish, then cross check every address against Google Maps. Each listing shows which sources agree.
- Confirmed
- Confirmed by two sources: the provider's location page and an active Google Maps listing.
- Listed
- Listed by one source only.
- Unconfirmed
- Only found on Google Maps, and that listing is marked closed. Call before you go.
Read more on the about page, or tell us about a change.
Brands in the directory
Most shops install more than one brand. State and city pages let you filter by the brand your court or DMV program requires.
- Intoxalock
- Smart Start
- LifeSafer
- Low Cost Interlock
- RoadGuard Interlock
- Guardian Interlock
- ALCOLOCK
- Draeger Interlock
- Monitech
- Simple Interlock
- Skyfine
Ignition interlock installers and real costs by state