See, speak to & screen visitors before letting them in. CGF Security installs video, audio & smart intercom systems across Sutherland Shire & Sydney. Licensed installers. Free quotes.
An intercom system is one of the simplest upgrades you can make to feel safer and more in control of your property. It changes the dynamic at your front door, from wondering who’s there to knowing exactly who you’re letting in.
Whether it’s a family home, an apartment block, an office, or a commercial site, a modern intercom gives you the power to see, speak to and verify visitors before granting access. Deliveries, guests, tradespeople, staff, you decide who gets through, from anywhere.
And it doesn’t stop at the front door. Today’s intercoms integrate with CCTV cameras, alarm systems, smart locks and controlled access security to form a single, seamless security setup.
If you need a simple audio intercom for your home or a fully integrated video intercom system for a commercial building, CGF Security can design a solution tailored to your property and security requirements.


The principle is simple: when someone wants to enter, you see them or speak to them first.
A visitor presses the panel at your entry point. Instantly, you receive a notification, on an indoor monitor, your smartphone, or both. You speak to them, you see them if it’s a video system and you choose whether to unlock the door or gate. All without leaving your seat.
Modern systems now include:
For property owners, this means you can manage deliveries, monitor entry points and communicate with visitors even while you’re away.
Screen everyone before they enter. Video intercoms remove the guesswork and reduce the risk of unauthorised access.
Answer the door from your phone. Unlock the gate from upstairs. Let the cleaner in while you're at work. It's security that fits around your day.
Seamless Integration Intercoms work hand in hand with CCTV cameras, alarm systems, smart locks and access control one cohesive system, not three separate remotes.
From the front door to the back office, or across multiple apartments, intercoms keep everyone connected without shouting or running up stairs.
A monitored entry point with a camera and intercom panel tells potential intruders: this property is watched and you'll be seen before you get in.
Built for Families & Businesses
If it's a busy household with kids coming and going, an apartment building with constant visitors, or an office managing clients and deliveries, intercoms make daily life safer and simpler.
The right intercom system depends on your property layout, security requirements and preferred level of functionality.
Every property is different, which is why we tailor intercom solutions around the way your space is used day to day.

Many of our jobs involve replacing or upgrading older intercom systems that have stopped working properly. If any of this sounds familiar, we can help:
We’ll assess your existing system and give you an honest recommendation: repair or replace, based on what makes sense, not what’s more profitable for us.
An intercom system should always be installed by experienced, licensed and insured security professionals. Correct setup means reliable performance, clear communication and a system that lasts.
GF Security provides professional intercom installation, repairs and maintenance for homes, apartment buildings, offices, warehouses and commercial properties across Sydney and surrounding suburbs.
Sutherland Shire, Cronulla, Miranda, Inner West, Eastern Suburbs, Mosman, Northern Beaches, Lower & Upper North Shore and greater Sydney.

An intercom system adds an extra layer of security by letting you see and speak to visitors before allowing them in. It helps prevent unwanted access and gives you full control over who enters your property.
Yes, modern intercom systems connect directly to your smartphone. You can see visitors, talk to them, and even unlock doors remotely whether you’re at home or away.
If your system is outdated, has poor audio/video quality, or stops working reliably, it’s worth upgrading. New systems offer clearer video, remote access, and better overall security.
CGF Security assesses your property and installs a system that suits your layout and security needs. They also ensure it integrates smoothly with your existing setup, making everything easy to use from day one.
While intercoms are great for managing entry, they work best when combined with CCTV and alarm systems. Together, they create a complete security setup that protects your property from multiple angles.