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Caddo Mills, TX

Caddo Mills, TX ignition interlock: 3 certified installers

3 in town, 22 more within reach of Caddo Mills

Verified · next review

3 certified centers in Caddo Mills, run by 3 providers. Addresses below — call ahead, most centers fit devices by appointment.

Centers here
3
Providers
3
Monthly · national guide
$70
national guide — Texas publishes no figure
Where to go

Certified installation centers in Caddo Mills

Sorted by how far they are from the center of Caddo Mills. 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
Red Rock Automotive LLC
3406 I 30 Frontage Rd, Caddo Mills, TX 75135 · 4 miles from the center of Caddo Mills
Low Cost InterlockSmart Start
2
Crumpton TV & Video, Inc. outside Caddo Mills
8602 Wesley ST, Greenville, TX 75402 · 7 miles from the center of Caddo Mills
state-certified · cert 1-00281per Texas DPS — certified ignition interlock service centers, checked 2026-09-05
Low Cost InterlockSmart Start
3
Super Sound & Security outside Caddo Mills
5013 Wesley St, Greenville, TX 75402 · 8 miles from the center of Caddo Mills
Intoxalock
4
Danny's Complete Auto Care outside Caddo Mills
6336 State Hwy 276, Royse City, TX 75189 · 12 miles from the center of Caddo Mills
Intoxalock
5
L & M Parkit Markit II outside Caddo Mills
509 E Main St, Quinlan, TX 75474 · 12 miles from the center of Caddo Mills
Intoxalock
6
Bailey Automotive outside Caddo Mills
1551 County Road 463, Princeton, TX 75407 · 17 miles from the center of Caddo Mills
Intoxalock
7
Car Toys Of Rockwall outside Caddo Mills
651 White Hills Dr, Rockwall, TX 75087 · 18 miles from the center of Caddo Mills
state-certified · cert 1-100280per Texas DPS — certified ignition interlock service centers, checked 2026-09-05
IntoxalockLifeSafer
8
Modern Audio Solutions outside Caddo Mills
3733 E University DR, Mckinney, TX 75069 · 20 miles from the center of Caddo Mills
Low Cost InterlockSmart Start
9
New Life Automotive outside Caddo Mills
2802 Exchange St, Wylie, TX 75098 · 21 miles from the center of Caddo Mills
state-certified · cert 1-00804per Texas DPS — certified ignition interlock service centers, checked 2026-09-05
Intoxalock
10
Tint World 018 outside Caddo Mills
7001 Rowlett Rd, Rowlett, TX 75089 · 23 miles from the center of Caddo Mills
state-certified · cert 1-100238per Texas DPS — certified ignition interlock service centers, checked 2026-09-05
ADS InterlockIntoxalockSmart Start
11
Creekside Automotive outside Caddo Mills
3000 Lakeview Pkwy, Rowlett, TX 75088 · 23 miles from the center of Caddo Mills
Intoxalock
12
Lube Masters Express outside Caddo Mills
6830 Murphy Rd, Sachse, TX 75048 · 23 miles from the center of Caddo Mills
Intoxalock
13
New Image Auto Sports - McKinney outside Caddo Mills
192 Industrial Blvd, Mckinney, TX 75069 · 23 miles from the center of Caddo Mills
state-certified · cert 1-01693per Texas DPS — certified ignition interlock service centers, checked 2026-09-05
IntoxalockRoadGuard InterlockSmart Start
14
New Image Autosports Window Tint outside Caddo Mills
192 Industrial Ste 106, Mckinney, TX 75069 · 23 miles from the center of Caddo Mills
Smart Start
15
New Image Autosports outside Caddo Mills
192 Industrial Blvd #106, Mckinney, TX 75069 · 23 miles from the center of Caddo Mills
state-certified · cert 1-01693per Texas DPS — certified ignition interlock service centers, checked 2026-09-05
RoadGuard Interlock
16
Texas Tint & Audio outside Caddo Mills
1008 W Moore Ave, Terrell, TX 75160 · 24 miles from the center of Caddo Mills
state-certified · cert 1-00273per Texas DPS — certified ignition interlock service centers, checked 2026-09-05
Low Cost InterlockSmart Start
17
Crows Garage outside Caddo Mills
514 E Moore Ave, Terrell, TX 75160 · 24 miles from the center of Caddo Mills
state-certified · cert 1-100034per Texas DPS — certified ignition interlock service centers, checked 2026-09-05
Intoxalock
18
East Side Garage & Repair outside Caddo Mills
5220 Gordon Smith DR, Rowlett, TX 75088 · 24 miles from the center of Caddo Mills
Low Cost InterlockRoadGuard InterlockSmart Start
19
Eastside Motor Group Llc outside Caddo Mills
5210 Gordon Smith Dr, Rowlett, TX 75088 · 24 miles from the center of Caddo Mills
state-certified · cert 1-01322per Texas DPS — certified ignition interlock service centers, checked 2026-09-05
LifeSafer
20
American Tire Shop outside Caddo Mills
5100 Gordon Smith Dr, Rowlett, TX 75088 · 24 miles from the center of Caddo Mills
state-certified · cert 1-100025per Texas DPS — certified ignition interlock service centers, checked 2026-09-05
LifeSafer
21
Johnny's Interlock @ Auto Eclipse outside Caddo Mills
1600 South McDonald Street, Mckinney, TX 75069 · 24 miles from the center of Caddo Mills
Alcolock USA
22
Custom Concepts Shop outside Caddo Mills
713 E Main, Allen, TX 75002 · 25 miles from the center of Caddo Mills
state-certified · cert 1-100110per Texas DPS — certified ignition interlock service centers, checked 2026-09-05
LifeSafer
23
Ron's Automotive - McKinney outside Caddo Mills
1102 W University Dr, Mckinney, TX 75069 · 25 miles from the center of Caddo Mills
Intoxalock
24
Red Rock Automotive LLC
3406 I-30 Frontage Rd Bldg B, Caddo Mills, TX 75135 · distance not available
Low Cost InterlockSmart Start
25
Evolution Motoring
3600 Co Rd 2508 Bldg D, Caddo Mills, TX 75135 · distance not available
LifeSafer

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 Texas requires

Texas attaches the interlock to the license itself: when a court order reaches the Department, your driving privilege is canceled on the 30th day after it notifies you, unless you fit a device and obtain a restricted interlock license. The restriction is also mandatory by statute for anyone granted an occupational license after a DWI conviction, whether or not the order spells it out — a judge can waive it only by finding it unnecessary for public safety.

  • First offense: For the duration of the suspension, unless the court finds good cause to remove the device early
  • Lockout threshold: Set by the device standard the Department certifies; the statute does not fix a number
  • Program run by: Texas Department of Public Safety, on the court order

Full Texas rules, providers and all 324 cities →

Hunt County · 2020–2022

Why Texas 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
17
of 72 fatal crashes in Hunt County
Share of fatal crashes
24%
Texas overall: 26%
People killed in those crashes
19
Hunt 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. Hunt County runs at or below the Texas average — the requirement is set state-wide regardless. 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 Texas

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

Questions

Interlock questions in Caddo Mills

Where can I get an ignition interlock device installed in Caddo Mills, TX?

We index 3 certified installation points in Caddo Mills, run by Low Cost Interlock, 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 Texas?

Texas 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 Caddo Mills 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 Texas?

Almost certainly not. Texas 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 Texas cities →Why Texas requires it →What it costs in TexasDUI lawyers in TexasIf the device recorded a violation →

The class Texas requires →The insurance filing in TexasHow long it stays on your record →