Beattie Electrical installs power, lighting and protection for sheds, garages, workshops, studios and other detached outbuildings across Sydney. Our licensed electricians plan the supply from your switchboard to the building, fit a properly protected sub-board, wire the interior to suit the way you'll actually use the space, and test and certify the work to Australian Standards.
| If the Building Is… | The Electrical Scope Usually Involves… | Worth Deciding Early |
|---|---|---|
| Storage and garden shed | A single lighting circuit, one or two power points, safety switch protection | Whether you'll ever want a fridge, a battery charger bench or a hobby corner |
| Hobby workshop or garage | Several power circuits, bright task lighting, outlets sized for compressors, grinders or saws | Whether any machine needs a dedicated circuit or three-phase supply |
| Home gym | Lighting, ventilation or fan power, dedicated circuit for equipment and possibly a split system | How the space will be cooled and whether it will get a lining |
| Studio, office or craft room | Clean, reliable power, data cabling, heating and cooling circuits, surge protection for sensitive equipment | Whether you want wired internet rather than relying on Wi-Fi reaching the back yard |
| Granny flat or secondary dwelling conversion | Full residential electrical scope: kitchen and bathroom circuits, hot water, smoke alarms, air conditioning | Approvals, metering and the capacity of your existing supply |
| Factor | Single-phase | Three-phase |
|---|---|---|
| Typically suits | Lighting, fridge, hand tools, bench tools, small compressors, home gyms, studios and offices | Larger compressors, lathes, mills, vehicle hoists, heavy woodworking or metalworking machinery |
| What's needed | Standard supply from your existing switchboard | Three-phase supply at the property, heavier sub-main and a three-phase sub-board |
| Effect on the job | Simpler and more affordable | More involved, and may need a network supply upgrade |
| Common mistake | Under-sizing circuits for tools that draw a lot at start-up | Paying for three-phase that the equipment doesn't need |
If your house is currently on single-phase and your equipment genuinely needs three-phase, the supply upgrade is coordinated with your local network (in Sydney, usually Ausgrid or Endeavour Energy), and it can take time. Start that conversation early.
A useful compromise when you’re unsure: run a three-phase-capable sub-main to the shed during the initial trench, then fit single-phase outlets for now. Adding three-phase outlets later is far easier than re-trenching.
We check the ceiling type (plaster, concrete, raked), locate joists or existing structure, and confirm what's currently wired to the point.
We confirm the circuit can handle the fan (and light, if combined), and check the switchboard has appropriate circuit protection.
We fit a fan-rated brace or bracket secured to structural framing — not just the plasterboard sheet.
All connections are made to AS/NZS 3000 standard, with correct earthing and secure terminations in the canopy.
Once mounted, we run the fan through every speed, check for wobble or noise, and test any light kit, wall control, or remote.
You receive a Certificate of Compliance for Electrical Work, which you should keep with your property records.
Re-bedding and re-pointing ridge and hip tiles to keep the roofline weathertight.
A final walk-through and sign-off to confirm the work meets our quality standard.
Much of the Sydney Basin sits on sandstone, which can turn a quick trench into a slow one. Properties across the North Shore, Northern Beaches and parts of the Sutherland Shire are especially likely to hit rock close to the surface.
In parts of Western Sydney and the Hills District, clay soil can move with the seasons, which is one reason conduit protection and good installation practice matter.
A shed at the bottom of a steep backyard changes cable routing, support and the position of the sub-board.
Tree roots and paving. All of these affect where the cable can sensibly go, and some are expensive to disturb.
Coastal homes can see faster corrosion of fittings, so material choice outdoors and inside sheds matters.
Sydney's summer storms are hard on both overhead cables and unprotected electronics, which is one reason surge protection is worth considering for workshops.
We look at the building, the route from the switchboard, the existing supply and how you intend to use the space.
We confirm cable route, sub-board layout, lighting and outlet positions, and anything that needs approval or network involvement.
Underground services are located before any digging starts. If trenching is needed, the route and arrangements are agreed in advance.
The sub-main is installed and connected at the switchboard. Power to your house is only interrupted briefly while that connection is made.
The sub-board is fitted and labelled, and the lighting and power circuits are wired.
Every circuit is tested, safety switches are trip-tested, and the work is certified to Australian Standards.
We show you the sub-board, explain what each device does and what to do if something trips.
Beattie Electrical services homeowners across Greater Sydney. Whether you have a backyard shed in Castle Hill, a workshop garage in Penrith, a studio at the back of a Ryde home, or an outbuilding on a larger block in Kellyville or Sutherland, we’ll design the supply around the property you actually have.
as a long-term solution. They're not designed for permanent outdoor use and tend to deteriorate with sun, moisture and wear.
on shed circuits, especially in older installations
whenever a tool starts up, usually from an overloaded or undersized circuit
at the far end of a long supply, often a sign of voltage drop or a poor connection
from gardening, building work or pests
such as a storage shed that's become a workshop Tool and appliance damage after storms in sheds with no surge protection
Tell us about your shed or outbuilding and how you’d like to use it. We’ll visit, talk through the options and give you a clear written quote.
