Electrician for acreage properties
Long runs, voltage drop, outbuildings, pumps and outages that last days. Acreage isn't a big suburban block, and wiring it like one is why so much of it doesn't work properly.
Why acreage is a different job
The difference isn't size. It's distance.
On a suburban block, the furthest point from your switchboard might be 15 metres. On five acres it can be 150. Every one of those metres costs voltage, and voltage drop is the single most common thing done wrong on acreage properties in the Hills. A cable sized on current alone — which is how a suburban sparkie sizes it — will be undersized for a 100 metre run. The shed lights work, so nobody notices. Then a welder or a pump gets plugged in, the voltage sags, the motor draws more current to compensate, and it runs hot for years until it fails.
Then there's the supply itself. Rural feeders are long, overhead, and run through trees. They go down more often, they stay down longer, and they carry more surge events. A suburban home might see one meaningful outage a year. Properties out past Kenthurst and Glenorie see several, and after a summer storm they can be off for days rather than hours.
And the loads are different. A pump that has to start against head. A shed with real machinery in it. Irrigation. A gate motor 100 metres from the house. Sometimes a second dwelling. Very often three phase.
Acreage work we do
The work that comes up again and again on properties past the suburban fringe.
Generator changeover switches
Manual and automatic transfer switches, sized to what actually has to keep running.
Three phase power
Workshops, large pumps, ducted air plus pool plus shed, multiple EV chargers.
Shed, studio & outbuilding power
Correctly sized submains for long runs — the job most often done wrong.
Whole-house surge protection
Rural feeders take more hits, and there's more electronics to lose.
Pump & bore circuits
Tank, bore and irrigation pumps, with starting current allowed for properly.
Gate & intercom power
Gate at the road, house 100 metres up the drive.
Voltage drop, with real numbers
This is the part worth understanding before you accept any quote for a long run.
Australian practice allows a maximum of 5% voltage drop from the point of supply to the furthest point of use. On a 230V supply that's about 11.5 volts. Sounds generous — until you run cable a long way.
A 20 amp load over 40 metres is comfortable in 6mm² cable. Take the same 20 amp load out to 80 metres and 6mm² no longer complies — you're into 10mm² or 16mm². At 150 metres, which is an ordinary distance from a Kenthurst house to a back shed, you may be looking at 25mm² or larger for the same load, or a decision to run the submain at a higher voltage arrangement instead.
The cable is a big chunk of the cost of these jobs, and it is exactly where a cheap quote saves money. If you have two quotes and one is dramatically cheaper, ask both what cable size they've allowed and what voltage drop they calculated. A contractor who has actually done the calculation will tell you immediately. One who hasn't will talk about amps.
Acreage electrical questions
Why is electrical work more expensive on acreage?
Mostly cable. A submain to a shed 120 metres away needs cable sized for voltage drop rather than current alone, which often means going up two or three sizes. Add trenching, conduit and a sub-board at the far end and the material cost alone dwarfs a suburban job.
My shed lights work but the welder trips things. Why?
Classic undersized submain. Lights draw almost nothing so the voltage drop never shows. Put a real load on the end of that cable and the voltage sags, current rises, and protection trips — or worse, doesn't. It usually means the submain needs replacing rather than the protection adjusting.
Do I need three phase on acreage?
Not automatically. You need it if you have machinery that requires it, large pumps, or a combined load that a single phase supply can't carry. Plenty of five-acre properties run perfectly well on single phase. We'd rather work out your actual load than sell you an upgrade.
How often should acreage properties expect outages?
More than the suburbs, and for longer. Rural feeders are long, overhead and tree-lined. After a serious storm, restoration is prioritised by number of customers affected, which puts sparse rural feeders near the back of the queue.
Is a generator or a battery better for backup?
Different tools. A battery is silent, automatic and excellent for outages measured in hours. A generator runs as long as you keep fuel in it, which is what you want when you're on day three. If you're on a bore or tank pump, backup isn't a comfort question — no power means no water.
Can you run power to a second dwelling or granny flat?
Yes. A secondary dwelling generally needs its own sub-board and often its own metering arrangement, which is a different job from simply running a circuit to an outbuilding. We'll tell you which one your situation actually is.
Do you charge extra to travel out to acreage?
No surcharge within the Hills District, and the acreage belt is inside it. If you're well beyond it we'll say so before booking, not on the invoice.
What customers say
Jason solved a really complex problem for our house with excellent professionalism and workmanship. Highly recommend, would def work with him again. On time delivery and within budget.
Jason onsite quickly and completed the work on the spot, giving us a good price and was very polite. Would highly recommend.
Fantastic service! Friendly, efficient and well priced. Highly recommend. Thank you for swiftly fixing our switches.
These are Google reviews for our team at Cync Electrical & Automation — the licensed contractor behind Hills Electrician. 5.0 from 20 reviews. — see the profile
Property not wired for what you're doing with it?
Tell us the distances and what's at the far end. That's usually enough to scope it. Call 0422 253 379.
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