Automating an Existing Gate on the Gold Coast
Most existing gates can be automated. Here’s how it works and what changes the price.
Short answer: yes, in most cases. If your gate is structurally sound, hangs straight and has somewhere to run power, a motor can go on it. You don’t need a new gate. We automate gates we didn’t build all the time across the Gold Coast and the Tweed.
What follows is the honest version — how the job actually runs, what decides the price and when we’d tell you not to bother.
Can my gate be automated?
Four things decide it, and we check all of them on a free site assessment before quoting.
- Weight and width. The motor is sized to the gate, not the other way around. A light aluminium slat gate and a heavy timber double gate need different motors
- Swing or slide. Both automate fine, they just use different gear. A sliding gate needs a straight, level track run. A swing gate needs clear arc for the leaves
- Condition. This is the one that catches people out. A gate that sags, binds on the track or has worn hinges will drag on a motor and fail early. Motors expose a tired gate rather than fix it
- Power. There has to be a way to get power to the gate. That’s usually a trench and conduit from the house, and the distance is part of the cost
How the install runs
Every automation we do includes the same steps, whether it’s a gate we built or one that was already there:
- Free site assessment of gate type, weight, swing or slide direction, and power
- A genuine Centsys motor, sized correctly for the gate
- Trenching, cabling and conduit run to the gate
- Photocell safety beams across the gate aperture
- Two Centsys remote transmitters
- Commissioning and load testing under the gate’s real cycle
- An AS/NZS 4505 compliance check before handover
- 12 month installation warranty, plus the Centsys manufacturer warranty registered to your property
Most straightforward retrofits are a one-day job. Long cable runs, awkward ground or a gate that needs work first will stretch that.
What actually drives the cost
We don’t publish a price, because a number without your gate in front of us is a guess and you’d be right not to trust it. Here’s what moves it, so you can see where your job sits before we come out:
- Gate weight and size — this picks the motor, and the motor is the biggest single line
- Slide or swing, single or double — a double swing gate needs two motors
- Distance to power — a run from the house to a gate at the front of a long block is more trenching and more cable
- Ground conditions — soft dirt trenches easily, rock and existing concrete driveways don’t
- Access gear — a keypad, video intercom, GSM module for phone access or extra remotes each add to it
- Backup power — battery backup so the gate still works in an outage, or a solar setup where mains is impractical
- Condition of the existing gate — if the hinges, track or frame need sorting first, that’s real work before the motor goes on
You get an itemised written quote after the assessment, so you can see each of those lines rather than one lump figure.
The motors we use
We install the Centsys range, sized to the gate:
- D3 Smart — light residential sliding gates up to around 300kg. Compact and quiet, the pick for slimmer aluminium and vertical slat driveway gates
- D5 Evo — the Coast residential default. Sliding gates up to 500kg, so Colorbond, heavier aluminium and timber driveway gates
- Centsys Vantage — the swing gate motor, single or double leaf, with soft start and soft stop
Heavier-duty industrial motors are available for larger or high-cycle gates if that’s what the site needs.
When we’d tell you not to automate it
If the gate is rusted through, the frame has racked out of square or the posts are moving, a motor is money spent on a problem that’s still there. It’ll run rough, the motor will work harder than it should and you’ll be back inside two years.
In that case we’ll say so and quote you a new gate built to take a motor properly, so you’re comparing the two honestly. Sometimes the answer really is a new gate, and you deserve to hear that before you spend, not after.
Where we do it
Across the Gold Coast and into the Tweed. See the gate pages for Southport, Robina, Burleigh, Coomera, Helensvale, Palm Beach and Tweed Heads, the full gate automation page for the motor range and accessories, and automatic driveway gates if you’re starting from scratch.
Automating an existing gate — FAQs
Can you automate a gate you didn’t build?
Yes. As long as the gate is sound and hangs straight we’ll fit a motor to it. We do it regularly on gates that came with the house.
How long does it take?
Most straightforward retrofits are done in a day. A long cable run, rock or concrete to trench through, or a gate that needs repairs first will take longer, and we’ll tell you that at the quote rather than on the day.
Do I need power run to the gate?
Yes, the motor needs power. That’s normally a trench and conduit from the house, which is why the distance from your power source to the gate affects the price. Where mains is impractical we can look at a solar setup.
Will the gate still open if the power goes out?
With battery backup, yes. Every motor can also be manually released so you’re never locked in or out during an outage.
What does it cost to automate an existing gate?
It depends on the gate weight and size, whether it slides or swings, how far power has to run, the ground conditions and what access gear you want. We give you an itemised written quote after a free site assessment so you can see each line rather than a single figure.
Is my old gate worth automating?
If it’s structurally sound, yes, and it’s far cheaper than replacing it. If it sags, binds or the posts are moving, a motor will just wear itself out on a tired gate. We’ll tell you honestly which one you’re looking at.
Free site assessment
Send us a photo of the gate and the driveway and we’ll tell you straight away whether it’s a candidate. Then we’ll come out, measure it and quote it properly.
Book a free assessment · call 0476 170 060 · sales@coastfencingandgates.com.au

