Home Alarm Systems
Protect your home and family 24/7 with a home alarm system from ADT — backed by smart technology and around-the-clock support. Speak with a licensed expert today.
Smarter alarm systems for every Australian home.
Intruder detection
Stop intruders before they enter with a home alarm system that protects every entry point.
- Motion detectors sense movement inside your home.
- Window and door sensors for perimeter protection.
- Glass break detectors respond to sound and vibration.
24/7 professional monitoring
Real emergencies need real people. Every ADT home alarm system is backed by round-the-clock support.
- Instant action when smoke, heat or movement is detected.
- Fast response from our Australian-based monitoring centre.
- Always on — even when you're asleep or away.
Smoke & heat detection
Your ADT home alarm system can detect smoke and heat even when unarmed.
- Seamless integration with your existing smoke alarm.
- 24/7 peace of mind even when your alarm system is off.
- Instant alerts if rising heat or smoke is detected.

Your home alarm system, reimagined.
Why choose ADT Security?
Simple, smart, secure. Custom-built home alarm systems, trusted for generations.
Smarter security starts here.
Take the guesswork out of home alarm systems. Upgrade your home security with cutting-edge technology and expert support today.

Get started today
Complete this form, and a trained security adviser will be in touch to design your ideal home alarm system.
Or phone us
131 ADT (238)
+61 2 9947 7108 (outside Australia)
Explore our related products
DIY Home Security
Wi-Fi Cameras
Automated Home Security
Home Alarm System FAQs
Need more answers?
What is the best home alarm system to buy?
The best home alarm system is one that covers all your home's entry points, is easy to use and connects to the internet for quick alerts, so there's no delay in responding to a potential threat. More advanced alarms also combine remote access, reliable monitoring and home automation tailored to your lifestyle.
Do you need a landline for an alarm system?
No, you don't need a landline to have an ADT alarm system installed or activated within your home. Our team can use multiple technologies like Wi-Fi or Bluetooth to connect security alarms to our monitoring system without a landline (phone line).
Are wireless alarms better than wired?
Wireless alarms are easier to install and offer more flexibility, allowing for quick setup without the need for extensive wiring. However, wired alarm systems are still used by some homeowners who prefer a fixed, non-wireless setup. ADT offers both wired and wireless options, letting you choose what works best for your home.
Do you need Wi-Fi for a wireless alarm system?
Yes, Wi-Fi is required for a wireless alarm system to send alerts and connect with monitoring services. However, ADT's wireless systems come with backup options like cellular connections to ensure reliable protection even without Wi-Fi.
Can burglars disable wireless alarms?
While no system is 100% foolproof, ADT’s wireless alarms feature encryption and advanced security protocols to reduce the risk of tampering. Most burglars aren’t highly technical—around 60% say they’d skip a home if it has an alarm system. Plus, our 24/7 monitoring ensures an immediate response in case of activation.
How does an ADT Security home alarm system work?
An ADT home alarm system works by connecting to our 24/7 home base monitoring. Our Australian-based call centre will be alerted if your system is activated, and you and your emergency contacts will be notified so that the appropriate action can be taken, including contacting emergency services.
Our monitored home alarm security systems are designed to secure entry points such as windows and doors and movement and smoke detection within your home. Our 24/7 live streaming cameras can be integrated into our solutions along with home automation.
Are wireless alarms easy to install?
Yes—ADT’s wireless alarm systems are designed for easy setup. You can explore our shop and choose a DIY option with guided instructions or have it professionally installed by an ADT technician for complete peace of mind.
How much is a full house alarm system?
The average cost of a home alarm system will depend on the sophistication of the technology you use and how many devices you set up throughout your home. Additions like Wi-Fi cameras and other features will add to the total cost.
Can you have an alarm system with a dog?
Yes. ADT's home alarm systems can integrate with sophisticated pet-friendly motion sensors so your dog can move freely around your home even while your security alarm is armed.
Does a house alarm use a lot of electricity?
No, a typical house alarm uses just 52 kWh per year—less than 1% of the average Australian household's annual energy use (6,388 kWh). ADT’s systems are designed to be energy-efficient, and many models include backup batteries in case of a power outage.
Can ADT monitor an existing alarm system?
Yes, the vast majority of existing alarm systems can connect to our 24/7 security monitoring. Call ADT on 131 ADT (238), and we can advise on seamlessly connecting monitoring ADT to your current home alarm system.