Safety Tips for Wiring Electricity in Your Shed

Adding power to your backyard shed might seem like a simple job, but it’s not something to rush into. Whether you’re planning to use the space for tools, a home office, or even a retreat, running electricity safely and legally is a must. In Australia, strict laws govern what can and can’t be done—and ignoring them can be costly, both financially and in terms of safety. If you’re thinking about electrifying your shed, here are some no-nonsense tips that’ll help you stay safe, follow the rules, and avoid future headaches.

Rules are rules—and in the case of electricity, they exist for good reason. In Australia, only licensed electricians are allowed to carry out most electrical work. That includes:

• Running permanent wiring from the house to a shed
• Installing power points, switches, or lights
• Making connections at the switchboard

You might feel confident doing a bit of DIY, but when it comes to wiring, doing it yourself could break the law. You also risk serious injury or starting a fire. It’s just not worth it.

What can you do? You’re usually allowed to dig trenches for cables, mount fittings or switches (without wiring them), and decide where everything should go. Everything else? Call the pros.

Will your shed just be for the lawnmower and some garden tools? Or are you setting up a workspace with lights, heating, and a mini fridge? Before calling in an electrician, it’s worth thinking about how you’ll actually use the space. Here are some questions to ask yourself:

• How many power points do I need?
• What kind of lighting will work best?
• Will I run any heavy tools or appliances?
• Do I need internet or phone access?

Even if you’re not sure you’ll use all of these features right away, it’s cheaper to run wires during installation than to come back and start over later.

Most shed installations involve running a dedicated power line from your house. This needs to be done underground and protected in conduit to prevent damage from digging, pests, or water.

You’ll need to dig a trench—usually at least 600mm deep. Make sure it runs in a straight, clearly marked path. Don’t leave it open for too long, and make sure it’s safe to walk around while work is being done.

Important: Do not use an extension lead as a permanent solution. They’re only designed for short-term use and can become dangerous if left outside or overloaded.

If your shed will power more than a lightbulb and a fan, it might need its own mini switchboard. These sub-boards help manage power loads and make it easier to shut off power to the shed if needed. They also house safety switches (RCDs), which are essential for protecting against electric shock. Your electrician will know if your setup needs one.

A shed isn’t as well sealed or insulated as your house. That means moisture, heat, and dust can all creep in and cause trouble if your fittings aren’t up to the task.

Use weatherproof light switches, sockets, and lights. Look for items with a proper IP rating:

• IP44 – Splash-resistant and fine for semi-exposed spots
• IP65 or above – Needed if items are directly exposed to the weather

And don’t forget UV-rated cables for any outdoor or exposed areas—they won’t degrade under the sun.

Sheds heat up fast in summer, especially if they’re made of tin or don’t have insulation. If you’re putting in power tools, a bar fridge, or a heater, you’ll need to make sure your space is ventilated to avoid overheating. Also, keep all electrical work away from flammable items like petrol, paint thinners, or gas cylinders. It might seem obvious, but in small spaces, it’s easy to overlook.

A bright shed is a safe shed. Good lighting helps prevent accidents and makes the space easier to use year-round.

LED lighting is the go-to—it’s energy-efficient, cool to the touch, and lasts for years. You can also add:

• Task lighting over benches
• Motion-sensor lights near the entry
• Solar-powered exterior lights for extra visibility

It’s not just your shed that needs protecting—think about what you’ll be plugging in. Sudden surges (especially during storms) can “damage or even destroy your electrical devices” says Mr Emergency Electrical.

Ask your electrician about surge protection during installation. It’s a smart extra that doesn’t cost much but can save a lot.

When your electrician finishes the job, they should give you a Certificate of Compliance. This is your proof that the work meets all safety standards and regulations.

Keep it somewhere safe—you may need it to:

• Make an insurance claim
• Sell your home in future
• Prove the work was done properly

If your electrician doesn’t offer one, ask. And if they still don’t—find a different one next time.

Once your shed is powered and working, keep an eye on it. Every few months, take a quick look at:

• Power points and switches for signs of damage
• Lights flickering or tripping circuits
• Any strange smells or buzzing sounds

If anything feels off, switch off power to the shed and call your electrician. It’s better to be cautious than regretful.

Wiring a shed isn’t just another weekend project—it’s an investment in safety and functionality. While it’s tempting to try and cut corners, doing it properly means peace of mind for years to come. Plan ahead, get the right help, and don’t rush the job. With the right setup, your shed can be a bright, safe, and reliable space you’ll enjoy using all year round. Need help finding a licensed electrician near you? Most state websites have searchable registers where you can check licence numbers and reviews before you book.