Intoxalock Ignition Interlock Schoolhouse Garage
5:30 PM - 7:30 PM 4:00 PM - 7:00 PM 4:00 PM - 7:00 PMClosed Today Closed Today Closed Today Closed Today
Need an ignition interlock device?Call NowCall (319) 382-3845
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Our Intoxalock state specialist will call you shortly. Business hours are Monday – Friday from 5:00 am – 12 am, and on weekends from 8 am – 10 pm Central Time
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We appreciate the opportunity to assist with your ignition interlock request and look forward to speaking with you. If you need to reschedule prior to the scheduled time, please call us at
405 Cleveland St
, IA 52221
|Day of the Week||Hours|
|Mon||5:30 PM - 7:30 PM|
|Tue||4:00 PM - 7:00 PM|
|Wed||4:00 PM - 7:00 PM|
Online Service Hours- 24 hours a day
Located in Schoolhouse Garage
- Waiting Area
About Intoxalock at Schoolhouse Garage
Schoolhouse Garage located in Guernsey, IA is an authorized Intoxalock installer. Intoxalock is the #1 interlock brand in the country, thanks to our easy-to-use IIDs. We are a state-approved interlock/car breathalyzer provider. Intoxalock state specialists provide 24/7 support and help guide you through the installation, calibration, and removal of your IID. Service center technicians will install your device and show you how it works. You’ll return to your Intoxalock location regularly for calibration, so we’ve made it easy to find one near you. With 5,000+ locations, Intoxalock has more service centers within 10 minutes of customers than any other provider. Call now to learn more.
Learn more about Ignition interlock devices
Ignition Interlock Devices
We offer different types of devices for ignition interlocks and alcohol monitoring that meet state requirements to regain your driving privileges.Learn more
What is an Ignition Interlock Device? Guide
Our IID guide will give you all the information you need about what an ignition interlock device is, how it works, how much it costs and more.Learn more
Top-rated ignition interlock provider
We'll take it from here
An Intoxalock specialist will be calling you in a few minutes to confirm your installation appointment.
If we are unable to reach you, please call us as soon as possible to confirm your appointment. Appointments are only held for 24 hours.
Once the device is installed, drivers blow into the car breathalyzer mouthpiece to provide a breath sample. The device tests for breath alcohol content (BrAC) within the legal limit. If it's under the limit (typically .02), then the driver can put their keys in the ignition and start the car.
An ignition interlock device, also frequently referred to as a car breathalyzer, ranges in cost between $70 and $150 for installation. This fee is a one-time fee paid at the start of your lease period for the device to be installed into your vehicle. This fee is paid directly to the service center for the work done to complete your installation.
At your appointment, you will learn how to use the Intoxalock ignition interlock device, what to avoid before blowing into the device, and how to maintain the device. Tutorial videos are also available on the Intoxalock mobile app.
Intoxalock has more than 4,200 locations for your interlock device installation. Intoxalock has more locations than any other provider. In fact, we have a location within 15 miles of over 91% of our customers. With so many places to install and service your ignition interlock device, our team makes the process as convenient as possible.
Once you’re at the Intoxalock location, you can expect your appointment to take one to two hours — time varies based on the make, model and year of your vehicle. You can plan to either leave your vehicle or pick it up when installation is complete. Our Intoxalock team is highly trained to quickly and carefully install your equipment.