Home Security Cameras: DIY vs Professionally Installed

The temptation to grab a four-camera kit from Bunnings for $200 is real. For some situations it might be fine. But there are real differences between consumer wifi cameras and a properly installed hardwired system.

Consumer WiFi Cameras

WiFi cameras have improved significantly. Easy to install, phone alerts, some have decent night vision. The limitations:

• Rely on your home WiFi staying up
• Batteries need changing or need power outlet access
• Footage stored in the cloud — typically a monthly subscription
• Can be physically unplugged or taken from outside
• Image quality limited by WiFi bandwidth

Professionally Installed Hardwired Systems

A proper CCTV install uses hardwired cameras — PoE (power over ethernet) or direct wired — connected to an NVR inside the home. The advantages:

• No WiFi dependency — works if your internet goes down
• Local NVR storage — no cloud subscription required
• Cameras can't be unplugged from outside
• Remote viewing via app still works when you're away
• Higher resolution, more consistent image quality
• Cables run through the roof space, not hanging exposed