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A switchboard upgrade is one of the most useful electrical jobs you can do in an older Adelaide home. It replaces ceramic fuses or a cramped, ageing board with modern circuit breakers and safety switches, and gives you room for the things houses now run on: air-con, induction cooktops, solar, batteries and EV chargers.
SuperFox is an enquiry service. You tell us about the job, and we pass your enquiry to one local electrician, who calls you back, inspects the board and quotes. For the wider picture of electrical work in Adelaide, see our electrician Adelaide hub.
What is a switchboard upgrade?
A switchboard upgrade means replacing or rebuilding the main electrical board in your home, the place where power from the street is split into circuits for lights, power points and appliances. In practice it usually means:
- removing old rewireable (ceramic) fuses and fitting circuit breakers
- adding safety switches (RCDs or combined RCBOs) to protect people from electric shock
- fitting a larger or newer enclosure with space for extra circuits
- labelling every circuit clearly so faults are easier to find later
Some jobs are a straight switchboard replacement. Others reveal problems in the wiring behind the board, and part of the house may need electrical rewiring as well.
Signs your switchboard needs upgrading
If you see any of these, it is worth getting a licensed electrician to look at the board.
| Sign | Why it matters |
|---|---|
| Ceramic fuses with fuse wire | Older design with no shock protection, and easy to “fix” with the wrong wire |
| No safety switch (no “Test” button) | No protection against electric shock on those circuits |
| Fuses blowing or breakers tripping often | Circuits may be overloaded or have a fault |
| Burning smell, buzzing or a warm board | Possible loose connections or overheating, so treat as urgent |
| No spare space on the board | You can’t add air-con, an oven, solar or an EV charger without changes |
| Old black or brown backing board | Some older boards contain asbestos and need careful handling |
If the board smells of burning, sparks or is hot to the touch, keep people away from it and treat it as urgent. Our emergency electrician page explains how urgent enquiries work.
What’s involved in a switchboard upgrade
The job usually follows a similar pattern, though every home is a little different.
- Inspection. The electrician looks at the existing board, the main supply, the meter position and the condition of the circuits. They may test the insulation on the wiring, because new safety switches will trip straight away on faulty circuits.
- Quote. You get a quote covering the new board, the number of circuits, safety switches and any extra work found.
- Changeover day. The power to the house is isolated, the old board is removed, and the new board is installed and wired. Depending on the home, this can take most of a day.
- Testing and certification. Each circuit is tested before the power goes back on, and the electrician issues a certificate of compliance for the work.
If the meter or the main supply needs to change as well, there may be steps involving SA Power Networks and your electricity retailer. The electrician will explain what applies.
Switchboard upgrades in Adelaide homes
Many Adelaide suburbs have houses from the 1950s to the 1980s, and a good number still have their original fuse boxes. Homes in suburbs such as Unley, Prospect, Norwood and Elizabeth often show the same pattern: ceramic fuses, one or two circuits doing too much, and safety switches added piecemeal or not at all.
Adelaide summers add pressure. Heatwave days with several air-conditioners running are when an overloaded board shows its weaknesses. A switchboard upgrade is also common before going solar or adding a home battery, which are popular in South Australia, because the board needs room for the new protection devices. If you are thinking about an EV charger, ask the electrician about your EV charger installation at the same time, as the work often overlaps.
Older boards can also hide older wiring. If the electrician finds rubber-insulated or brittle cabling, they may recommend rewiring some circuits before connecting them to new safety switches.
What affects the price of a switchboard upgrade?
There is no single price, because the work varies so much from home to home. The electrician quotes after seeing the board. The main factors are:
- Size of the home and number of circuits. More circuits means more breakers and safety switches.
- Type of protection. RCBOs on each circuit cost more than a few shared RCDs but limit outages to one circuit when something trips.
- Single-phase or three-phase supply. Three-phase boards are larger and more involved.
- Condition of the wiring. Faulty circuits found during testing need repair before they can be connected.
- Asbestos. Older backing boards may need removal by someone qualified to handle asbestos.
- Meter and supply changes. Moving the board or upgrading the main supply adds work.
- Access. Boards in tight or awkward spots take longer.
For a fuller breakdown, read our guide to switchboard upgrade cost. If you are weighing up supply capacity, single-phase vs three-phase power explains the difference.
SA rules and what to ask the electrician
In South Australia, electrical work must be done by a licensed electrical worker, and licensing is administered by Consumer and Business Services (CBS). You can check a licence on the CBS public register before work starts. Technical and safety rules sit with the Office of the Technical Regulator (OTR).
When the work is finished, the electrician must issue a certificate of compliance, and you should receive it within 30 days. Our article on the certificate of compliance in SA explains what it shows and why to keep it.
Questions worth asking:
- Is the quote fixed, and what happens if faulty wiring is found during testing?
- Will every circuit have safety switch protection?
- Will there be spare space on the board for future solar, a battery or an EV charger?
- How long will the power be off?
- Is there any asbestos, and how will it be handled?
- When will I receive the certificate of compliance?
Related jobs often done at the same time include adding safety switches and extra power points.
Getting your switchboard sorted
Send one enquiry through the contact form or call 08 6800 6079. We pass the details to one local electrician, who calls you back within 24–48 hours to arrange an inspection and quote. If the board is hot, sparking or smells of burning, choose Urgent on the form, but note that we can’t promise an arrival time.