Alcohol Interlocks in Mullumbimby

Safe Driving, Done Right

At Mullumbimby Auto Electrical, we provide professional alcohol interlock installation and servicing that helps you meet your program requirements with ease. Based in Mullumbimby, we’re fully licensed to install, maintain and calibrate interlock devices to government standards, keeping you on the road safely and legally.


Our team ensures every installation is discreet, compliant and explained clearly so you can feel confident behind the wheel. We also offer dependable services such as auto air conditioning, 4x4 electrical upgrades, and EV repairs, all carried out with the same care and precision our clients trust. Whether it’s your first installation or a routine calibration, we’ll make sure the process is simple, stress-free, and professionally handled from start to finish.


For expert installation and support, call us today on (02) 6684 6626.

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Frequently Asked Questions

  • What is an alcohol interlock and how does it work?

    An alcohol interlock is a breath-testing device connected to a vehicle’s ignition system. Before the engine starts, the driver must blow into the device — if any alcohol is detected over the preset limit, the vehicle won’t start. The system records every breath test, engine start, and any violations. These reports are later reviewed by the relevant authorities as part of your interlock program. Modern interlock devices are small, discreet, and designed for everyday use, helping drivers meet legal requirements safely while getting back on the road responsibly.

  • How do I get an alcohol interlock installed?

    Once you’re approved or required to have an alcohol interlock, you’ll receive a court order or instruction from your state’s licensing authority. You then contact an authorised installer — such as a licensed auto electrician — to book the installation. The technician will fit the device, show you how to use it correctly, and explain your servicing schedule. Regular calibration and reporting appointments are mandatory to maintain compliance. Choosing a local, licensed installer ensures your device meets all program requirements and that installation is clean, secure, and fully certified.

  • How often do I need to service or calibrate my alcohol interlock?

    Most alcohol interlock programs require servicing every 30 to 60 days, depending on your state regulations. During servicing, the technician downloads data logs, checks calibration accuracy, and ensures the device is functioning correctly. Missing a scheduled service can result in a program violation or even licence suspension, so it’s important to stay up to date. Regular maintenance also ensures readings remain accurate, preventing false positives and keeping your program on track.

Man Blowing Into a Breathalyzer in a Car, Alcohol Content Displayed — Mullumbimby Auto Electrical in Mullumbimby, NSW

Making The Process Simple

We understand that having an alcohol interlock fitted can feel overwhelming — that’s why we focus on making the process simple and stress-free. Our technicians guide you through every step, from installation and calibration to ongoing maintenance and reporting.


Each visit is handled with professionalism and respect for your privacy, ensuring your interlock remains accurate and compliant throughout your program. With reliable service, transparent advice, and a commitment to quality, we help you move forward with confidence.


You can always expect friendly communication, clear explanations, and a genuine understanding of your needs. Our goal is to make sure you feel supported every time you visit, with dependable results that help you stay safe and compliant on the road.