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Quality security solutions for your commercial and domestic requirements throughout Melbourne.

Call Now 1300 315 522

Protect your business and home with comprehensive security solutions from Twenty First Security.

  • High quality security products and services.
  • Can install, repair, replace and monitor security systems.
  • Fully trained and licensed technicians.
  • Our technicians are on call 24/7.
  • In the Melbourne area? We can travel to you.
  • Australian owned and operated.
  • Competitively priced.
  • Over 33 years experience.
  • Member of ASIAL (Australian Security Industry Association Limited).
  • Australian Achiever Awards Winner in the Australian Security Industry Services and Supplies category.

ASIAL Member Australian Security Industry Associaton gold member. 2003 Australian Achiever Awards winner excellence in customer service. Bosch Security Certified Partner.

Get Your Free Quote Now

* Free quotes are available for select Melbourne suburbs in our service area. Contact our team to find out more.

Find out more about how we can help you at Twenty First Security.

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Quality Security Systems at Competitive Rates

Protecting your business and family doesn't mean you have to break the bank.

Twenty First Security provides reliable and quality security systems for Melbourne-based businesses, organisations and individuals at a competitive rate, helping protect what's important to you.

Bosch alarm system with a keypad.


Quality alarms for commercial and domestic purposes, including motion senor alarms and wireless alarm systems.

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CCTV / cameras installed up high.

CCTV / Cameras

Security cameras, video surveillance, wireless cameras, outdoor cameras and closed circuit television products / CCTV systems.

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Bosch access control with key card verification.

Access Control

Security for authorising access to resricted areas, including access control panels, keypads and keycard lock systems.

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The front panel of a audio intercom system.

Intercom Systems

Check who enters your property with sophisticated intercom systems including video, audio, wired and wireless options.

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Not Sure What Will Suit Your Requirements?

Find the right solution for your situation. To discuss your security needs with industry experts, contact us now on 1300 315 522 or send through your enquiry.

Lady using access control keypads.

We Can Install, Repair and Service Your Alarms and Cameras

We're familiar with all security alarm and camera systems on the Australian market, including quality Bosch security systems. We use this extensive knowledge to effectively assist you. Whether you are installing new cameras or need to repair your old system, our expert team are here to help you.

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24 hour monitoring of CCTV and security cameras.

Professional 24 Hour Monitoring Solutions

Give yourself more time to focus on what's important while we monitor your security system.

Twenty First Security offers 24 hour monitoring / back to base monitoring of your security system from our state of the art Grade 1 central monitoring station in Melbourne, VIC, Australia. Grade 1 is the only grading which can ensure a police response to alarm conditions.

Our trained operators are on standby at all hours and ready to take the appropriate action, whether that's acting on a burglary, medical emergency, fire or other condition as set by you.

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People in the secure reception area of an Australian company.

Commercial Security for Your Business

Protect your business efficiently and cost-effectively. Twenty First Security assists businesses and organisations of all sizes and types, including hotels, venues, restaurants, supermarkets, warehouses, storage facilities, offices and industrial buildings.

We provide expert consultations to help you implement the best security measures to suit your business or organisation. Whether you need just a straight forward alarm or a complete system with digital CCTV packages, remote monitoring and intricate key card access, our team have the expertise to help you at a competitive rate.

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Inside of a modern business with male and female staff.

Use Quality to Protect Your Business - Don't Fall for the Trap of Second Rate Security

Did you know that there are a lot of benefits to having a commercial security system installed by a licensed technician? Don't fall into the trap of using an unlicensed technician and low quality equipment. We've seen it time and time again where someone uses a generic low quality security system and unlicensed technician, then is left with a broken and ineffective system that barely if at all works, which ends up costing more in the long run.

Our technicians are fully trained and licensed to provide you with quality security solutions that work effectively.

Woman using and setting a Bosch alarm at home.

Domestic Security to Protect Your Home

Create the peace of mind and protection that your family and home deserves. We assist individuals, couples and families with powerful and easy to use security products.

We understand that protecting your home is important. Our trained and licensed technicians endeavour to provide you with great service and products suited to your situation, including home alarm systems and installation, wireless home security camera systems, motion sensors, access control card readers and more at affordable prices.

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Melbourne city centre CBD with vehicles.

Free Quotes for Melbourne Businesses and Homes

We offer free quotes for Melbourne-based businesses, organisations and homes in select suburbs. To find out if you're applicable to receive a free onsite quote and when we'll be in your area next, contact us now by calling 1300 315 522 or send your enquiry.

Why Choose Us?

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Expert Advice

Not quite sure what you need for your situation? Our expert team are here to help you with clear and experienced advice.

Mobile security installation truck.

We Can Travel to You

We can travel to select suburbs within Melbourne VIC for installations, upgrades, repairs and consultations.

Wall mounted security camera looking down.

Quality Product Range

We stock quality security products and complete systems aimed at effectively protecting what's important for you.

Security license document.

Licensed Security Business

As a licensed security business, we follow standards and codes to ensure the products and services we provide to you are safe and reliable.

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Fully Trained Technicians

All of our technicians are fully trained to provide you with the best advice and onsite services, such as consultations, installations and repairs.

The Australian continent / country.

Australian Owned and Operated

We're based in, owned and operated in Australia. We're experienced with the range of security systems on the Australian market.

Contact Us Now for a Free Consultation

Get in touch with us for expert advice and reliable products, aimed at helping you protect what's important.

ASIAL Member Australian Security Industry Associaton gold member. Bosch Security Certified Partner. 2003 Australian Achiever Awards winner excellence in customer service. 2002 Australian Achiever Awards winner excellence in customer service. 2001 Australian Achiever Awards winner excellence in customer service. 1999 Australian Achiever Awards winner excellence in customer service.