Installing your own CCTV system in Australia can save you $500–$1,500 in labour costs — and give you full control over your home security. But ask anyone who's bought a PoE security camera kit and you'll hear the same thing: the cabling is the part that trips people up.
This guide covers everything from fishing cable through a brick veneer wall cavity, to dealing with possums chewing through cables in the roof, running conduit that won't warp in 40°C summer heat, and understanding what you can legally do yourself under Australian cabling rules.
Tools and Materials You'll Need
| Category | Item | Notes |
|---|---|---|
| Tools | Cordless drill (18V+) with masonry/spade bits | Drill into mortar joints for brick — easier to patch |
| Hole saw (50–75mm) | For conduit through external walls or soffits | |
| Fish tape or cable rods (5–10m) | Essential for roof cavity runs | |
| RJ45 crimping tool + cable stripper | If using bulk cable | |
| Network cable tester | Test before and after you run | |
| Cabling | Outdoor UV-rated Cat6 (black jacket) | Buy 20% extra for slack |
| 20–25mm rigid PVC conduit + fittings | For ALL external runs; use grey/black UV-rated | |
| Silicone sealant & weatherproof cable glands | IP66+ to seal every wall penetration | |
| Safety | P2 mask & head torch | Asbestos awareness for pre-1987 homes |
Step 1 — Plan Your Camera Positions and Cable Routes
The best CCTV installations start on paper, not a ladder. Mark each camera's intended position and trace the cable route back to where your NVR will sit. Measure each route and add 20–25% for routing around obstacles.
📌 Camera height: Mount cameras at 2.5–3m for a good balance of facial capture and tamper resistance. Aim for a 15–25° downward tilt.
NVR Placement
Place the NVR centrally to keep cable runs short. It needs to be near your router, near a 240V power point, and ideally in a cool, locked location. Avoid garages in Queensland or the NT — summer temperatures can stress electronics.
Step 2 — Know Your House Type
Australia has several distinct home types, and each needs a different approach.
Scenario A: Single-Storey Brick Veneer (Most Common — Easiest)
You can access the wall cavity from the roof space. Drill a small hole through the top plate, feed your fish tape down, then drill through the mortar joint outside to pull the cable through.
💡 Tip: Drill into mortar joints rather than the brick face. Mortar is softer and less likely to cause cracking.
Scenario B: Double Brick / Solid Brick (Common in Older Homes)
There is no internal cavity. Route through the roof space and exit under the eave (soffit), or run external conduit the full length.
Scenario C: Weatherboard / Fibro Homes
Framing is fully enclosed. All cable runs must be external conduit. Pre-1987 fibro homes may contain asbestos — do not drill without testing first.
Scenario D: Two-Storey Homes (Most Challenging)
The upstairs floor structure blocks access to ground-floor wall cavities. Ground-floor camera cables must run externally in conduit from the eave all the way down.
| House Type | Internal Cable Run? | Recommended Method |
|---|---|---|
| Single-storey brick veneer | Yes | Fish tape from roof space into wall cavity |
| Single-storey double brick | No | Soffit exit + external conduit or core drill |
| Single-storey weatherboard | No | External conduit from roof space |
| Two-storey (any type) | Top floor yes | External conduit for ground-floor cameras |
Step 3 — Running the Cables
This is where the real work happens. Here's how a typical two-storey brick veneer installation actually plays out — from the first connection through to the finished data point.
3a. Bind the Cable to Your Fish Rod
Before you do anything else, tape your blue Cat6 cable securely to the yellow fish rod (often called the "yellow tongue"). Wrap it tightly so it won't pull free during the run. A loose connection here means starting over halfway through the job.
3b. Head Up the Ladder to the Eaves
With everything bound up, it's time to climb. Carry the fish rod and cable up the ladder to the eaves. Take a moment to position yourself safely and get a clear view of the gap you're aiming for before feeding anything through.
3c. Feed Through the Eaves Gap
Push the fish rod — with the cable attached — through the gap under the roof tiles and into the roof cavity. Aim directly for the roof space above. This step is crucial: if the rod doesn't make it through cleanly, the rest of the run won't happen.
💡 Tip: A slight upward angle helps the rod clear the top plate and get into the roof space properly.
3d. Navigate the Roof Cavity
Inside the roof space, it's dark, cramped, and full of timber framing and insulation — that's just standard Australian roof construction. Use your head torch and move carefully. Work around the tight spots rather than forcing the cable. Keep at least 50mm separation from electrical cables and secure the cable with clips every 600–700mm along the joists.
⚠️ Australian roof safety rule: Roof cavity temperatures can exceed 50°C between 11am and 5pm in summer. Schedule roof work for early morning.
3e. Work From the Inside — Wall Cavity Run
Once the cable is through the roof space, switch to the indoor side. Remove the wall plate at the camera or data point location. Push your fish rod up through the wall cavity opening to meet the cable you've dropped from above. When the two connect, pull the Cat6 cable down and out through the wall opening.
Finally, connect the cable to your NVR or router. The run is complete.
3f. External Conduit Runs
Where internal routes aren't possible (double brick, weatherboard, ground-floor cameras on two-storey homes), use rigid, UV-stabilised grey or black PVC conduit (20–25mm). Use weatherproof conduit fittings (IP44+) and seal every entry point into a wall with a cable gland (IP66+) and silicone.
3g. Underground Runs
Bury conduit at a minimum depth of 300mm. Use Schedule 40 PVC conduit. Seal both ends to prevent water and animals getting in.
3h. Drip Loops — Never Skip This
Leave a small downward U-shape in the cable just before it enters the camera. Water drips off rather than following the cable into the connection point.
Step 4 — Terminating and Testing Cables
Crimping Your Own RJ45 Connectors
Use the T568A wiring standard. Wire order (left to right, clip facing away):
- White/Green
- Green
- White/Orange
- Blue
- White/Blue
- Orange
- White/Brown
- Brown
Always test with a network cable tester before mounting cameras. Pulling a camera back down because of a bad termination is one of the most frustrating things you can do to yourself.
Waterproof Connections for Outdoor Joins
If joining cables outdoors, use a weatherproof RJ45 junction box rated IP66 or IP67.
Step 5 — Mounting Cameras
With cables tested, mount cameras using the provided drill template. Slide the weatherproof gland over the cable before plugging in, tighten it to form the IP67 seal, form your drip loop, then feed the cable into the wall.
Troubleshooting: Real Problems and Solutions
| Problem | Most Likely Cause | Solution |
|---|---|---|
| NVR shows no image | Bad RJ45 termination; CCA cable | Test cable; re-terminate; test camera with a short patch lead |
| PoE not powering camera | CCA cable resistance; run over 100m | Replace with 100% solid copper Cat6; use PoE extender |
| Intermittent dropout after rain | Water ingress at wall penetration | Re-seal with silicone; add IP67 junction box; add drip loop |
| Constant false motion alerts | Trees, possums, moths | Switch to Human/Vehicle AI detection in NVR settings |
| Night vision "washed out" | IR overexposure | Enable "Smart IR" in camera settings |
Frequently Asked Questions
Q: Do I need a licence to install CCTV wiring myself in Australia? For your own private property, you can legally mount cameras and run surface-visible cable. Permanently concealed cable runs — through wall cavities or roof spaces — are technically "restricted cabling work" under AS/CA S009:2020. Hiring a Registered Cabler for concealed runs is recommended for insurance purposes. Connecting to 240V mains power always requires a licensed electrician.
Q: What is the best cable for outdoor CCTV cameras in Australia? Outdoor-rated, UV-stabilised, 100% solid copper Cat6 with a black jacket. Do not use CCA (copper-clad aluminium) or indoor-only Cat6 for any exterior or roof cavity run.
Q: What is the maximum cable length for PoE CCTV cameras? The standard maximum is 100 metres of Cat6. In practice, stay under 90 metres for reliable performance.
Q: How do I protect CCTV cables from possums in the roof? Use rigid metal conduit (EMT) or heavy-duty corrugated HDPE conduit. Seal roof entry points with solid sheet metal or heavy-gauge steel mesh.
Q: Should I run CCTV cables inside or outside the house? Internal routes through roof and wall cavities are strongly preferred — they're tidier and better protected. External runs are necessary for double brick and weatherboard homes, and must be fully enclosed in UV-rated PVC conduit.
Q: How do I stop my CCTV cameras triggering constant false alerts? Switch from standard pixel motion detection to AI-powered human and vehicle detection — AcuSense on Hikvision, SMD 4.0 on Dahua. This alone will eliminate most nuisance alerts from possums, moths, and swaying trees.
Q: Can my cameras film the street or a neighbour's property? Filming public areas like streets and driveways is generally legal. You must not deliberately record private areas — such as a neighbour's pool, backyard, or windows — where there's a reasonable expectation of privacy. Audio recording laws vary by state; check your state's Surveillance Devices Act before leaving microphones enabled.
Q: Is it safe to use Hikvision or Dahua at home given the security concerns? These brands were removed from Australian government buildings, but remain legal and widely used for private residential installations. For home use, buy through an Australian-authorised distributor (not a Chinese import), and consider keeping your NVR on a separate network that does not have internet access if privacy is a concern.
Conclusion
Wiring your own CCTV system in Australia is a genuinely achievable weekend project. Plan carefully, use outdoor-rated solid copper Cat6, protect exterior runs with conduit, seal penetrations, and test before mounting.
You now know how to run the cables , but if you're still deciding which cameras, how many channels, or which brand best suits your property, let our free AI Security Camera Advisor do the hard work.
📦 Ready to start? Shop CCTV System at Smarket
📹 Want to see it done in real time? Watch our step-by-step wiring walkthrough: WATCH THE VIDEO