Stillwater, OK ignition interlock: 2 certified installers
2 in town, 28 more within reach of Stillwater
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2 certified centers in Stillwater, run by 3 providers. Addresses below — call ahead, most centers fit devices by appointment.
Certified installation centers in Stillwater
Sorted by how far they are from the center of Stillwater. 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.
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.
Not sure which center to call?
Send your details once and certified installers covering Stillwater will get in touch with availability and a price for your term. It costs nothing, and you are not committing to anything by asking.
We pass your details only to providers that are certified in Oklahoma. We never sell your information on, and you can tell them to stop at any time.
What it costs in Stillwater
Interlock pricing is set at state level, so what applies in Stillwater applies across Oklahoma. These figures come from the price schedule filed with the state.
| Charge | Amount | What it covers |
|---|---|---|
| Installation | $150–$350 | $150 for a vehicle over five years old, $200 for a newer one, $225 hybrid or electric, $350 exotic |
| Monthly | $99.99–$114.99 | $99.99 traditional plan on autopay, up to $114.99 with roadside cover |
| Removal | $89–$150 | Taking the device out at the end of your term |
Filed price schedule filed by the provider with the state · Smart Start Oklahoma State Pricing Schedule — Oklahoma Board of Tests · effective 2025-10-22 · checked 2026-08-23
The fees nobody quotes you over the phone
These are charged on top of the three above, and they are where a cheap-looking Oklahoma quote turns expensive.
| Fee | Amount |
|---|---|
| Enrollment fee | $40 |
| Final compliance download | $45 |
| Administrative closing fee | $75 |
| Service or violation lockout | $87.50 each |
| Missed appointment | $55 (waived with 24 hours notice) |
| Calibration and inspection visit | $25 |
- Prices exclude state fees and taxes.
What Oklahoma requires
Oklahoma counts in "active interlock days" — a day only counts if the device is installed, powered and not in permanent lockout. Every program also ends with a 90-day violation-free stretch, so a bad reading near the finish line pushes your completion date out rather than just costing a fee.
- First offense: 180 active interlock days for a first revocation, 365 for a second, 730 for a third or later — and the last 90 days of each must be violation-free
- Lockout threshold: Set by the device the Board of Tests certifies; a day counts toward the program only while the device is installed, powered and out of permanent lockout
- Program run by: Board of Tests for Alcohol and Drug Influence, with driving privileges issued by Service Oklahoma
Why Oklahoma 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.
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. Payne County runs above the Oklahoma 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.
Other cities in Oklahoma
If nothing in Stillwater works for you, a center one town over often has an earlier appointment — the price does not change.
Interlock questions in Stillwater
Where can I get an ignition interlock device installed in Stillwater, OK?
We index 2 certified installation points in Stillwater, run by Intoxalock, Low Cost Interlock, Smart Start. 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 Oklahoma?
Oklahoma publishes its own figures rather than leaving it all to vendors: $150 to $350 to fit the device and $99.99 to $114.99 a month while it stays on the car. Removal is billed separately at the end of the term.
Can I drink one beer and still start the car in Oklahoma?
Almost certainly not. Oklahoma 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 Oklahoma cities →Why Oklahoma requires it →What it costs in Oklahoma →DUI lawyers in Oklahoma →If the device recorded a violation →