An automated gate adds convenience and a real layer of access control to a home — but there’s a fair bit to get right: the right gate type, a motor that suits it, safe operation, and a way in that actually works for your household. It’s also one of those jobs where getting the basics wrong is expensive to undo, since the gate, the motor and the site work all need to match. This guide covers what matters for NSW homeowners considering gate automation.
Swing vs sliding gates
The two common options each suit different driveways:
- Swing gates — open inward or outward on hinges, suit narrower driveways with clearance for the swing arc, and can be single or double-leaf for wider entrances
- Sliding gates — run alongside the driveway rather than swinging into it, better for sloped or space-constrained sites, and come as cantilever (no ground track) or track-mounted systems
Cantilever sliding gates avoid the ground track altogether, which means no debris or drainage issues at the base — useful if the driveway floods or collects leaf litter. Track-mounted systems are generally cheaper to install but need a level, well-drained surface to run properly.
A wider entrance often calls for a double swing gate, with both leaves opening together rather than one large single leaf — easier for the motor to handle and usually a more balanced look. Whichever type you choose, check that the gate itself (material, weight, size) suits the motor you’re pairing it with; an undersized motor on a heavy gate wears out fast and won’t hold up to daily use.
Motors and access
Most residential gates use an electromechanical motor — reliable, moderate in cost, and needing periodic lubrication and adjustment. Newer direct-drive (brushless) motors run quieter and more efficiently, with fewer moving parts to service, though they typically cost more upfront. Which one makes sense depends less on brand and more on how heavy the gate is and how often it’s used — a gate opened a handful of times a day has very different demands to one used by a busy household multiple times an hour.
How you open the gate matters as much as the motor itself:
- Remote control — handheld transmitters with rolling-code technology, so a captured signal can’t be reused
- Keypad — a weatherproof code pad, good for giving guests or tradies temporary access
- Intercom — talk to whoever’s at the gate before letting them in, often paired with a camera
- App control — open the gate from your phone, with a log of who opened it and when
Most households end up using two of these together — a remote in the car for everyday use, plus a keypad or app as backup for visitors, tradies or when the remote’s been left inside.
Safety features
An automated gate is still a large moving object operating somewhere kids, pets and cars all pass through, so safety features matter as much as convenience:
- Obstacle detection — photocells or pressure-sensitive edges that stop the gate if something’s in the way
- Manual release — a way to open the gate by hand if the power’s out or the motor fails
- Battery backup — keeps the gate operating through a short power outage
- Fail-safe default — the gate should default to a safe position if the system faults
Gate automation safety is covered by AS/NZS 60335.2.103, the standard for drives used on gates, doors and windows.
Power options
Most gates run off mains power, but that’s not the only option. Solar systems with a battery work well where running mains power to the gate post is impractical or expensive, and a battery-only setup can suit gates that aren’t opened often. A hybrid setup — mains power with a battery backup — covers most households: normal power day to day, with enough charge in the battery to keep opening the gate through a blackout. Whatever the power source, that backup for the control system is worth having so the gate doesn’t just stop working the moment the power does.
Maintenance
Gate motors need periodic attention: lubricating moving parts, checking electrical connections, and testing the safety systems and remote batteries. In a coastal climate, salt air can corrode hardware faster than inland, so stainless or coated fittings are worth it near the coast. Heat affects electronics and plastics over time, and a quick check before storm season is sensible given how exposed a driveway gate is to weather.
Most of this is simple enough to do yourself — a visual check, a listen for anything grinding or straining, testing the remote and the manual release. An annual professional check is worth having on top of that, mainly for the safety systems: obstacle detection and emergency stop features are the kind of thing that can quietly stop working without anyone noticing until the gate actually hits something.
Cost factors
What a gate automation project costs depends on the gate itself (size, material, swing vs sliding), the motor needed to move it, any civil work for power and foundations, and whether access control like a keypad or intercom is added on top.
Get a clear quote before committing, and ask what’s included — civil work and electrical connection can add to the headline price of the gate and motor. Professional installation also tends to matter more for warranty cover than people expect: most manufacturers expect the motor to be installed and commissioned properly to honour the warranty, which is worth checking before deciding to DIY a motor install.
Quick answers
Do you install the gate motor itself? No — we handle the access control side (intercoms, keypads, app entry), not the motor or the gate. For the motor, you’ll want a gate automation specialist, and we’re happy to fit the access control once it’s in.
Can I add a keypad or intercom to an existing gate? Usually, yes. Most gate control systems can take an additional keypad or intercom input without replacing the motor.
What happens to the gate during a power outage? With battery backup, it keeps working for a while. Without it, most gates have a manual release so you can open them by hand.
How Saint George Group can help
We handle the access control side of a gate — intercoms, keypads and app-based entry — rather than the gate motor itself. If you’ve already got a gate (or someone lined up to install the motor) and need an intercom system or other entry system fitted, get an access control quote and we’ll take it from there. We’re a licensed NSW security installer (NSW master licence ML000111327) covering Sydney, Newcastle, Wollongong, the Central Coast and the rest of NSW. We also cover access control for buildings and offices, not just driveway gates.
Automated gates add real convenience to a home, but they’re worth doing properly — the right gate for the site, a motor that suits it, and access control that’s simple enough that you’ll actually use it every day.
