Security

Comprehensive Security & Alarm Systems

At O’Brien Electrical & Security Alexandria, we specialise exclusively in delivering reliable, high-performance security and alarm system solutions designed to protect people, property and assets.

As part of the nationwide O’Brien group, we have the capability to manage everything from single-site installations to large-scale, multi-location security rollouts. Our experienced security technicians provide end-to-end solutions, including system design, installation, integration, upgrades and ongoing maintenance — all delivered to the highest industry standards.

We work with proven, modern security technologies to deliver tailored solutions across a wide range of applications, including:

CCTV Surveillance Systems – High-definition indoor and outdoor cameras with remote viewing and smart monitoring capabilities
Intruder & Alarm Systems – Intelligent detection systems that provide early warning and effective deterrence
Access Control Systems – Secure electronic access solutions including keypads, cards and integrated entry management
Back-to-Base Monitoring – Optional professional monitoring for rapid response and enhanced protection
Intercom & Integrated Security Solutions – Video intercoms and unified platforms that connect alarms, access and surveillance systems

Our security solutions are designed to be scalable, user-friendly and future-ready, providing layered protection tailored to your environment, risk profile and budget. We service residential, commercial, industrial and strata clients across Alexandria, Sydney CBD and surrounding areas.

With more than 25 years of experience supporting Sydney properties, O’Brien Electrical & Security Alexandria is a trusted security partner known for quality workmanship, reliable systems and ongoing support.

Our mission is simple: to become your preferred security solutions partner by delivering dependable protection and complete peace of mind.

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Why choose O’Brien Electrical & Security Alexandria?

No job is too big or too small
From complex projects to basic emergency repairs, we can help your business accomplish what needs to be done, as quickly as possible.
Equipped to handle anything you throw at us
We have the experience, manpower, and expertise to look after all your electrical requirements.
Guaranteed 4-hour response in all metro areas
Our fleet of service vehicles is ready to respond around the clock. If you experience a critical fault and request an urgent response, we’ll guarantee to respond within 4 hours.
Trusted by global and local businesses
Big brands like McDonald’s, Chemist Warehouse, Nine West, Freedom, and Ray White depend on our professionalism and accountability – and you can too.
Monitor all your jobs online for greater visibility
We ensure that your project runs on time and on budget with online job monitoring and reporting.

Home Security Services

At O’Brien Electrical & Security Alexandria, we provide smart, reliable home security solutions designed to protect your family, property and assets. Our experienced team delivers tailored security system design, installation and maintenance, using proven technologies and trusted suppliers.

We specialise in home alarm systems, CCTV cameras, access control, video intercoms and smart security integration. Whether you are building a new home, upgrading your existing security system or maintaining your current setup, we ensure your home remains secure and protected.

Our smart home security solutions allow seamless integration of alarms, surveillance and access systems, giving you greater control, remote monitoring and peace of mind.

We respond promptly to all home security callouts, providing fast, professional support when you need it most. Backed by transparent processes and reliable service, we make home security simple, effective and stress-free.

Security System Products ready for installation in the Eastern Suburbs

Security System Installation

Protecting your home or business premises is always a priority.

An up-to-date security system can go a long way towards providing employees and family members with the reassurance that they’re protected, as well as deter would-be criminals.

Our team at O’Brien Electrical & Security Alexandria has the skills and experience to complete every aspect of your security system installation, as well as system repairs and maintenance.

We have an excellent knowledge of the latest security technology, as well as the experience we need to make the best decisions for your design and installation.

We consider every aspect of your property, not just your existing security. That way we can suggest a solution that works best for your property.

We may recommend electronic locks and entry systems, as well as CCTV cameras, motion sensors, infrared (heat) sensors, and alarms.

Are you overwhelmed trying to figure out your security system needs? Talk to our experts today and organise a professional quote.