Trusted in Melbourne for over 15 years, we’ve completed over 20,000 alarm system & security camera installation jobs for residential, business & commercial clients.

We’ve seen it all and done it all in that time, so if you’re looking for high-quality, affordable home & business video alarm systems, you’re in the right place!

  • Alarm Systems For Home & Multifamily Buildings

  • Business, Commercial & Enterprise Alarms

  • Security sensors for every sensor points

Book a free site inspection today!

Defend Security Group’s alarm and security systems don't just record crime, they help prevent it. Alarms are an important component in keeping your house and premises safe. We offer both wireless and wired alarm systems catered to user needs for every possible scenario. With over 15 years of industry experience, we offer the best in alarm, custom camera & CCTV installations.

We understand you need a security solution to help protect you and your valuables against burglars and intruders. Our team of security advisors are all fully licensed, Police checked, hold relevant cabling licenses, product endorsements, Working with Children checks and all other workplaces applicable licensing. Your safety and security is our business!

We only work with & install the best alarm brands

See what people say about our alarm solutions...

Sue Dick
Sue Dick
06:01 21 Apr 22
Thanks Pryce. You fixed our phone issue, inspected our cameras, made a recommendation and gave us a fair quote without any pressure. We went ahead and had 2 cameras replaced and the new ones are perfect. Highly recommend DSG very professional and caring. Nothing was too much trouble. Thank you.
Davide De Vellis
Davide De Vellis
10:12 28 Mar 22
Thoroughly recommend DFS. Pryce was awesome to deal with, incredibly accommodating to an issue that needed a timely resolution. Cannot recommend these guys enough.
Ross Beverley
Ross Beverley
05:06 28 Mar 22
Great service. The suggested products and security system capabilities were explained very clearly. We are very happy with the finished result. Thank you
Ashley Stevenson
Ashley Stevenson
01:02 21 Mar 22
Would use again. Pryce was a lovely guy to deal with. Very happy with job.
Jess Smith
Jess Smith
02:20 11 Mar 22
Could not be happier with the service from Pryce. Responded to emails right away and had fixed our issue the following day. Thanks so much Pryce. - Seahaven Private
Rex Anderson
Rex Anderson
05:36 16 Feb 22
Thank you for your help. You did a great job and the whole process was very smooth.
Louise Nguyen
Louise Nguyen
03:06 11 Feb 22
Very happy with our new system. It was a pleasure dealing with your company. Thanks again
Albert Ross
Albert Ross
10:12 04 Feb 22
Nice clean work done at my property. Very happy. Would use again. I found Pryce to be very knowledgeable and a pleasure to deal with.
Abagail Thomas
Abagail Thomas
07:53 25 Jan 22
Our property was professionally assessed and we felt very comfortable and confident in their security recommendations. Thank you Pryce and team for providing such a professional service.
Joshua Turner
Joshua Turner
07:27 25 Jan 22
Pryce and his team did a great job. We are very pleased with our new business security system. Highly recommend
Adrian Pancello
Adrian Pancello
08:41 26 Dec 21
Excellent service. Very happy with install and more than happy to recommend. Thanks again
Max Lowe
Max Lowe
02:42 12 Oct 21
Fast, efficient and professional service. Great security cameras and supplied DVR. Offices areas completed within the day.
Katrina Nguyen
Katrina Nguyen
02:09 12 Oct 21
Very happy with service. This company installed a new cctv system. Professional and extremely helpful. Highly recommend
Pamela Williams
Pamela Williams
06:38 06 Oct 21
Very happy with your services. Extremely happy with new security system installed. And also for taking the time to explain all the functions and setting.
Layla Gordon
Layla Gordon
03:18 05 Oct 21
Pryce and his team installed our security cameras and security for our business entrance doors at our retail premise. We found them more then helpful and answered all our questions about the systems. Highly recommended!
Anna Butternick
Anna Butternick
00:21 05 Oct 21
Great service. We had a Business security system installed at our premises. Pryce and his team were very honest in their approach and a pleasure to deal with.
Angelo Nervosa
Angelo Nervosa
05:01 12 Sep 21
The team at Defend Security have been instrumental in protecting our customer information and we are extremely happy with the installation of the Business CCTV and Alarm that was set up in our office, their service is truly second to none, highly recommended, professional and friendly, AAA+++
Pete Jenkins
Pete Jenkins
09:52 09 Sep 21
Very pleased with service. Delivered what was promised. Thank you
Nunawading Japanese School Australia
Nunawading Japanese School Australia
00:05 09 Sep 21
For the past 8 years our business and home Security had Bren managed my Defend. They’ve always been very supportive and helped with any issues we had over the years with our business Alarm system and our Business cctv system. We’ve also had our home security fully updated with all the smart technology and we’ve never get safer.If you are looking for an honest, professional cctv security company in Melbourne, then we can’t recommend Defend Security Group enough.
Julie Marston
Julie Marston
05:11 08 Jun 21
Honest, trustworthy and very professional. Highly recommend
Next Reviews

Intruder Detection

Our alarm systems provide you with the latest security technology to protect your home from intruders. Defend Security Group understand that all homes have different needs and requirements for their security and as such conducts a FREE in home professional security assessment.

Our suite of intruder detection products allows DSG to protect your home from unwanted intruders. We have products that protect entry points to your home i.e. doors and windows and we have products to monitor and protect the inside of your home. Our product range includes passive infrared detectors (PIRs or Motion detectors), door and window sensors and breaks glass detectors.

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honeywell smoke alarm

Smoke & Heat Detection

Our systems can integrate with smoke and heat detectors to offer an extra layer of protection to your home and family. Our smoke detectors are active 24/7, so whether your alarm system is armed or not, you can rest assured knowing the smoke detector is always on to help you and your family in the event of an emergency. If smoke or heat are detected in your home, you can receive notifications directly on your phone and take immediate action.

Duress Alarms

A Defend Security Group our home security system products have a duress alarm button to help protect you and your family. In the event of this being activated, relevant authorities can be notified and help on the way.

How our security systems work.

camera detects motion

Detections

Detect motion when people come to your property.

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Notifications

Receive notifications and check-in on home or business anytime.

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Action

See, hear, and speak to visitors in real time from anywhere.

  • Defend Security Group ok

    Apartment Intercoms

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    Bullet CCTV Cameras

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    Medical CCTV Systems

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    Automated Gates

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    Dome Security Solutions

  • Defend Security Group ok

    Turret CCTV Cameras

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    Access Keypads

  • Defend Security Group ok

    Night Vision Cameras

  • Defend Security Group ok

    Warehouse CCTV

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    Electric Entry Locks

  • Defend Security Group ok

    Office Security Systems

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    Network Recorders

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    Wide Area Alert Systems

  • Defend Security Group ok

    Infrared Cameras

  • Defend Security Group ok

    Number Plate Recognition

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    Teardrop Sirens

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    Covert CCTV Installation

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    Intruder Alert Technology

Fully licensed and up-to-date with all the latest products and technologies. We offer expert business security systems advice.

Defend Security Group is a fully insured security company. Our technicians are industry leaders and experts within their field.

How does a security alarm work?

Alarm Systems work by sending out signals to a central monitoring station when sensors are faulted. ... Sensors can be hardwired into a security system, or they can communicate wirelessly through the use of a wireless receiver. When a sensor is activated or faulted, it sends an alert to the alarm control panel.

Are security alarms effective?

Have you ever wondered whether security systems are actually effective in preventing crime? The short answer is yes. Studies have shown that simply by having a security system, your home is much less likely to be targeted by burglars and thieves in the first place.

Do alarms deter burglars?

According to the research, the answer is a resounding “Yes.” Studies have been conducted on the effect of the presence of a home security system. The results are in: as much as 60% of burglars casing a potential target would indeed be deterred by an alarm system.

Why do security alarms go off for no reason?

dead battery in one of your components creates a gap in your home security system. Some systems will react to that by setting off an alarm, alerting you to potential problems. Other home security components may sound an alarm when the battery gets low. This is the case for some fire alarms.

What should I look for when buying a house alarm?

Key features to consider when purchasing a home security system include wireless vs. wired home security monitoring, the security of the system itself (whether it's vulnerable to hackers), and the cost.

What are the different types of alarm systems?

What Are the Different Types of Home Alarm Systems?
  • Electric Current Alarm System. ...
  • Wired Alarm System. ...
  • Wireless Home Alarm System. ...
  • Unmonitored Home Alarm System. ...
  • Monitored Home Alarm System.

Defend Security Group supplies and installs CCTV Security Cameras, Access Control Systems, Intercom Systems to your business or commercial premises. Contact us today to arrange a free site assessment

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CCTV Security Cameras

Protect what matters most with top of the line, affordable security cameras & installation. Get peace of mind and protect your home, business or commercial space 24/7.

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Intercoms & Access Control

Video intercom & touchless access solutions for home & business. Improve operational efficiency and staff productivity, and increase physical and data security.

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Alarm Systems

Protect your Home & Business from Intruders and Burglars? You are just one click away from getting peace of mind by installing a cost-effective alarm system.

Book a free site assessment

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