If you’re searching for a car breathalyzer after a DUI conviction, we offer the best Ignition Interlock Device (IID) the state has to offer. We will help you successfully complete your IID requirement with support from knowledgeable, compassionate Program Advisors who understand everything you need to know about an Ignition Interlock installation in Washington.
However, you’ll be getting more than just an IID. We’ll be with you right from the beginning with the services and support you need. Our innovative and affordable program also includes 24/7 customer care that makes your experience as easy as possible.
Schedule an installation appointment now.
Need Ignition Interlock? Get started with our Program Advisors today!
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Schedule an Interlock Device Installation in Longview
Ride with Smart Start
& get back on the road
- The leading Ignition Interlock Program in Washington State
- Low-price, with no hidden fees
- Fast installation with same-day available
- 24/7 multilingual customer care
It only takes a moment to get your personalized quote.
Call Now! (800) 831-3299Ignition Interlock in Longview: We're Always Here for You
From $1.99/Day* - No Long-Term Contracts
Bi-weekly payment options designed to fit your budget.
Ignition interlock Costs3,000+ Locations - Same Day Install
Quick installs by skilled technicians at convenient U.S. locations.
Find a LocationDiscreet, Easy-to-Use Devices
Reliable, hygienic devices with guided tests and easy English-Spanish switching.
Smart Start devices24/7 Knowledgeable State Program Experts
Multilingual support trusted by over 1 million people, ready when you need us.
Talk to a program advisorIgnition Interlock Locations in Your Area
Let’s get started with an installation that fits your schedule, at one of the convenient locations below.
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935 14th Ave
Longview, WA 98632CLOSED – Opens at 8:00am
Ignition Interlock in Cowlitz County Isn't Just a Device. It's a Program.
The Most Discreet Ignition Interlock Devices in Longview, Washington
Smart Start’s car breathalyzers were designed to be court compliant while keeping the user’s needs in mind. We understand the desire for privacy during this difficult time, so our Ignition Interlock Device is small and discreet.
The black exterior allows you to conceal it easily in your motor vehicle, but size doesn’t dictate function! Our Ignition Interlock Device can read your alcohol-free test in less than one second, so you can get back on the road quickly.
The Best Customer Care
When you choose the cheapest Ignition Interlock Device, you’re choosing the 24/7 bilingual support of our Customer Care Center and the expertise of our local technician teams. Call (800) 831-3299 or complete the form at the top of this page to enlist Smart Start as your program partner. We’ll put the wheel back in your hands.
Questions about Ignition Interlock Devices in Longview, Washington
How do I get my IID calibrated in Longview?
Calibration is required regularly to ensure your IID is working properly. In Longview, we offer convenient service appointments to calibrate your device. The frequency of calibration is defined by Washington regulations. Generally, every 30-90 days.
Can I get same-day Interlock Device installation in Longview?
Yes! Smart Start offers same-day installation appointments at many of our Longview-area locations, subject to availability. We understand the urgency of meeting program deadlines, so we work to accommodate your schedule and get you back on the road as quickly as possible.
Where can I get an Ignition Interlock Device installed in Longview, Washington?
Smart Start offers several convenient installation locations throughout Longview and the surrounding areas. Our local service centers are staffed by experienced technicians who provide fast, professional installations. To find a location near you, visit our location finder or call our 24/7 Customer Care team for assistance.
How much does an Ignition Interlock Device cost in Longview?
Smart Start offers affordable Ignition Interlock solutions in Longview. See our Interlock Device cost guide for Washington to learn more.
How does an Ignition Interlock Device work?
An Ignition Interlock Device (IID) prevents a vehicle from starting if it detects alcohol on the driver’s breath. The driver blows into the device, and if their breath alcohol content is below the programmed limit, the car will start. You’ll also have to complete periodic retests after starting your vehicle to ensure continued compliance. Learn more about how IIDs work with our complete guide.
What are Washington’s IID laws?
In Washington, an Ignition Interlock Device (IID) may be required after a DUI. See our complete guide for information on IID laws and more in Washington.
See What Everyone Says About Our Ignition Interlock
Excellent TrustScore Rating
January 13, 2026
"Aj was a lovely person who helped with everything I needed."
Am.
United States
January 13, 2026
"Great and friendly customer service associate."
Jeffery M.
United States
January 13, 2026
"Jordan gonzales is a great guy he really help me a lot on installing my device ..."
Alexis P.
United States




