Smart Start Ignition Interlock

Smart Start of Denton
2105 Sadau Ct
Suite 130
Denton, TX 76210

#1 Ignition Interlock from $1.99/day*. Same-day installation available

Book your install now

Hours of Operation:

Day	1st Hour Block	2nd Hour Block
Sun	Closed
Mon	8:00am - 5:00pm
Tue	8:00am - 5:00pm
Wed	8:00am - 5:00pm
Thu	8:00am - 5:00pm
Fri	8:00am - 5:00pm
Sat	Closed

Services at this Location:

Installations
Calibrations

Book an Installation

With the thousands of locations across the nation, 24/7 customer support, no hidden fees and the most reliable device on the market, Smart Start Ignition Interlock devices are hands-down the best way to get you back on the road fast.

Get a quick and easy IID installation with Smart Start! Get started today!

¡Obtenga una instalación rápida y fácil de IID con Smart Start! ¡Empieza hoy mismo!

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Or Call (940) 735-3867 Now!

¡O llame ahora al (940) 735-3867!

Why Choose Smart Start Ignition Interlock?

From $1.99/Day* - No Long-Term Contracts

Bi-weekly payment options designed to fit your budget.

IGNITION INTERLOCK COSTS

3,000+ Locations - Same Day Install

Quick installs by skilled technicians at convenient U.S. locations.

FIND A LOCATION

Discreet, Easy-to-Use Devices

Reliable, hygienic devices with guided tests and easy English-Spanish switching.

SMART START DEVICES

24/7 Knowledgeable State Program Experts

Multilingual support trusted by over 1 million people, ready when you need us.

TALK TO A PROGRAM ADVISOR

#1 Ignition Interlock Device Provider at Smart Start of Denton in Denton

Name: Smart Start of Denton
Address: 2105 Sadau Ct, Suite 130, Denton, TX, 76210, US
Telephone: (940) 735-3867
Rating: 5

We know that getting a DUI can be a stressful time. This is why we want you to have the best experience possible, starting with your Interlock provider. By choosing Smart Start, you will have access to our multilingual customer care team 24/7/365. These knowledgeable team members want you to succeed in your program and are ready to answer your questions.

With us, you’ll also be getting the best Ignition Interlock in Denton, Texas. Our expert service technicians at Smart Start of Denton will be with you every step of the way. From installation and maintenance to removal of your device at the completion of your program

Fast Ignition Interlock Installation in Denton, Texas

We take our responsibility as the Ignition Interlock leader very seriously. Because, like everywhere else in Texas, traffic safety is a major concern for residents. At Smart Start, our job is to provide the best Ignition Interlock Devices (IIDs) for Denton, Texas. And to help keep the highways safe from drunk drivers anytime, night or day.

If you’ve got a DUI in Denton, Texas and need an IID, Smart Start is your choice. We offer affordable car breathalyzer rates and reliable devices, to help you meet your IID requirements. At Smart Start Denton, their specially trained technicians will get you back on the road quickly after a quality installation. They will also provide hands-on training, so you understand how to use your device.

So, schedule your installation now by calling (940) 735-3867 or by filling out our online form. Let us be your Ignition Interlock provider in Denton, Texas. Look for other convenient Smart Start locations in Denton, Argyle, Corinth, DFW, Flower Mound, Frisco, Highland Village, Justin, Lewisville, Pilot Point, Roanoke, Sanger, The Colony, or throughout Texas. We look forward to serving you!

Frequently Asked Questions

The overall cost of an Ignition Interlock Device is a combination of installation fees, monthly service fees, and removal fees. Exact pricing varies by state. To get a quote today, call (800) 831-3299 to speak with a friendly Program Advisor.

Texas mandate dictates that you will need to service your Ignition Interlock Device (IID) once every 30-67 days as determined by your jurisdiction.

Once you have scheduled your Ignition Interlock Device (IID) installation with Smart Start, you will need to bring the following to your IID installation appointment:

Two forms of photo identification
Any and all court paperwork that has been given to you
Proof of residence
Car insurance and vehicle registration

If the vehicle is not yours, you will need to provide a letter of permission from the owner of the vehicle stating that you are allowed to install an Ignition Interlock Device.

In Texas, you can pay for your Interlock Device calibration via credit card at the Smart Start service center at the time of calibration or via the online Client Portal.

In Texas, any and all of the following may constitute a violation:

Testing at or above the fail level of .030
Skipping or failing a rolling re-test
Missing your scheduled IID service appointment

Learn more about Interlock Device violations.

Texas state law dictates that you can service your Ignition Interlock Device at any Smart Start service center nationwide unless informed otherwise by your State authority. Find the nearest Smart Start service center here.

Nearby Locations

Smart Start of Denton

2401 Worthington Dr
Denton, TX 76207

OPEN NOW – Closes at 5:00pm

Services at this Location:

Installations, Calibrations

(833) 407-0073 More Details

VAPOR VERSE

982 North Garden Ridge Blvd
Lewisville, TX 75077

OPEN NOW – Closes at 7:00pm

Services at this Location:

(214) 231-0298 More Details

DFW Tintlyfe

207 King Rd
Frisco, TX 75033

OPEN NOW – Closes at 6:00pm

Services at this Location:

Installations, Calibrations

(214) 291-0028 More Details

See What Everyone Says About Our Ignition Interlock

Excellent TrustScore Rating

December 5, 2025

"They telephone operator was great. She really helped me understand the proscess"

Chris Erving omer.

United States

December 5, 2025

"Honestly from having so much trouble and bad experiences with other devices and companies (intoxaloc ) this was a great experience I was lucky to talk to two wonderful people on two separate occasions and they were so helpfully spoke very clear and with confidents explained everything and even answered many questions I had clear results fast emails and updates and over all paying was a breeze ( even tho my chest hurt ) I was happy to be on the right track and ready to use this device and hurry this smooth road ! "

Alfredo C.

United States

December 5, 2025

"Great customer service "

Chris C.

United States

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Find a location near you!

Smart Start Ignition Interlock

Hours of Operation:

Services at this Location:

Book an Installation

Fast-Track Your Installation

Want to speed up the installation appointment process?
We can get you a quote faster if you fill out the information below.

Or Call (940) 735-3867 Now!

¡O llame ahora al (940) 735-3867!

From $1.99/Day* - No Long-Term Contracts

3,000+ Locations - Same Day Install

Discreet, Easy-to-Use Devices

24/7 Knowledgeable State Program Experts

#1 Ignition Interlock Device Provider at Smart Start of Denton in Denton

Fast Ignition Interlock Installation in Denton, Texas

Frequently Asked Questions

Nearby Locations

Smart Start of Denton

Services at this Location:

VAPOR VERSE

Services at this Location:

DFW Tintlyfe

Services at this Location:

Get Started

Locations

Support

Partners

Contact Us

Find a location near you!

Smart Start Ignition Interlock

Hours of Operation:

Services at this Location:

Book an Installation

Fast-Track Your Installation

Want to speed up the installation appointment process?We can get you a quote faster if you fill out the information below.

Or Call (940) 735-3867 Now!

¡O llame ahora al (940) 735-3867!

Why Choose Smart Start Ignition Interlock?

From $1.99/Day* - No Long-Term Contracts

3,000+ Locations - Same Day Install

Discreet, Easy-to-Use Devices

24/7 Knowledgeable State Program Experts

#1 Ignition Interlock Device Provider at Smart Start of Denton in Denton

Fast Ignition Interlock Installation in Denton, Texas

Frequently Asked Questions

How much does an Ignition Interlock Device cost in Texas? What are the fees?

How often does my IID need to be serviced in Texas?

What do I need to bring to my installation in Denton?

How can I pay for calibration?

What constitutes a violation in Texas?

Where can I go for service? Anywhere, or just within my state?

Nearby Locations

Smart Start of Denton

Services at this Location:

VAPOR VERSE

Services at this Location:

DFW Tintlyfe

Services at this Location:

See What Everyone Says About Our Ignition Interlock

Get Started

Locations

Support

Partners

Contact Us

Want to speed up the installation appointment process?
We can get you a quote faster if you fill out the information below.