Smart Start Ignition Interlock

Smart Start of Lewisville

1047 E STATE HIGHWAY 121
Suite D6
Lewisville, TX 75057

#1 Ignition Interlock from $1.99/day

No Long Term Contracts

Same-day installation available

(972) 236-8370

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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Reason for Interest *

Interested in an IID ASAP (within 7 days)

I eventually need an IID (in MORE than 7 days)

I am a current customer and need customer service

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I consent to 1A Smart Start LLC and/or its franchisees' reaching out to me multiple times on an ongoing basis using telephone, text and/or email, including autodialed and prerecorded calls and texts, about our products, services, promotions, and other offers. This consent is not required to purchase goods or services. To opt-out of text messages reply "STOP", and to opt-out of emails click the unsubscribe link in the email. For texts, text "HELP" for help.

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By providing my information and clicking “Book Your Install Now,” I authorize [Insert Legal Name of Franchisee, distributor, or affiliate] to contact me at the phone number above via phone and/or text using multiple and periodic autodialed and prerecorded calls and texts for marketing purposes. Not a condition for purchase. Message and data rates may apply. To opt-out of texts, reply “STOP”.

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Installation Due Date

Date of Birth

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VIN #

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Preferred Date

Preferences are subject to change based on availability.

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Questions/Comments

Or Call (972) 236-8370 Now!

¡O llame ahora al (972) 236-8370!

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 Lewisville in Lewisville

Name: Smart Start of Lewisville
Address: 1047 E STATE HIGHWAY 121, Suite D6, Lewisville, TX, 75057, US
Telephone: (972) 236-8370
Rating: 5

Smart Start Lewisville is located conveniently right off TX Business Hwy 121. Why is Smart Start Lewisville the cheapest? We are affordable and won’t surprise you with hidden fees or monthly contracts. We put our customers first, and will provide the best care to you and your vehicle. Plus, our bilingual, customer care service is available 24/7/365, including weekends and holidays – we look forward to serving you!

Call and schedule your Smart Start Interlock appointment at (972) 236-8370 or fill out our quick and easy online form. Look for other convenient Smart Start locations in Lewisville, Addison, Carrollton, Coppell, Corinth, Denton, DFW, Flower Mound, Frisco, Grapevine, Highland Village, The Colony, or throughout Texas.

(972) 236-8370

Frequently Asked Questions

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

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.

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

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

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

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.

How can I pay for calibration?

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.

What constitutes a violation in Texas?

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.

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

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

H&H Motor Co

730 S Mill St
Lewisville, TX 75057

CLOSED – Opens at 9:00am Th

Services at this Location:

(833) 408-2382 More Details

VAPOR VERSE

982 North Garden Ridge Blvd
Lewisville, TX 75077

CLOSED – Opens at 10:00am Th

Services at this Location:

(214) 231-0298 More Details

RIDER AUTO CARE

2450 Old Denton Rd
Carrollton, TX 75006

CLOSED – Opens at 9:00am Th

Services at this Location:

(214) 988-0114 More Details

See What Everyone Says About Our Ignition Interlock

Excellent TrustScore Rating

February 19, 2026

"Was great to talk too and knowledgeable "

John L.

United States

February 19, 2026

"I just recently got out of prison and the agent or representative Rashina was outstanding making sure I understood everything and knew what the amounts were going to be. She made me feel very comfortable with doing business with her and the company"

Justin S.

United States

February 19, 2026

"Rashina was an excellent help."

D Chang.

United States

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Find a location near you!

Smart Start of Lewisville

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 (972) 236-8370 Now!

¡O llame ahora al (972) 236-8370!

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 Lewisville in Lewisville

Frequently Asked Questions

Nearby Locations

H&H Motor Co

Services at this Location:

VAPOR VERSE

Services at this Location:

RIDER AUTO CARE

Services at this Location:

Get Started

Locations

Support

Partners

Contact Us

Find a location near you!

Smart Start of Lewisville

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 (972) 236-8370 Now!

¡O llame ahora al (972) 236-8370!

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 Lewisville in Lewisville

Frequently Asked Questions

Nearby Locations

H&H Motor Co

Services at this Location:

VAPOR VERSE

Services at this Location:

RIDER AUTO CARE

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.