The switchboard is the part of your electrical installation that decides what happens when something goes wrong. A modern board disconnects a faulty circuit in a fraction of a second. An old one with ceramic rewireable fuses simply melts a wire, and offers no protection at all against the kind of fault that gives a person a shock.
If your board still has porcelain fuse holders with fuse wire in them, or no safety switches, an upgrade is the single most worthwhile electrical improvement you can make to the property. Below is what an upgrade actually involves and how to judge whether yours needs one.
Signs worth acting on rather than waiting out.
Porcelain holders you pull out and rewire. They protect the wiring from overload but do nothing to protect a person from electrocution.
If nothing on the board is labelled RCD or "safety switch" and there is no test button, you have no residual current protection.
Both indicate a loose or deteriorating connection generating heat.
Evidence of past or ongoing overheating.
Often a sign the board and circuits no longer match how the property is used.
Common when a board was sized for a much smaller house than the one that now exists.
Common in older Sydney homes. It changes how the work must be handled and needs to be identified before anything starts.
I look at the board, the consumer mains feeding it, the earthing arrangement and the condition of the existing circuits. What is behind the board matters as much as the board itself.
Some boards need full replacement; some need safety switches added and nothing more. You get told which yours is, and I am happy to explain the reasoning.
Including whether the earthing needs upgrading, which is a common and easily hidden extra.
A board change means the power is off for a period. That gets scheduled around you rather than sprung on you.
New board installed, every circuit tested, and labelling done properly so the next person can tell what is what.
You receive a CCEW for the work, and notification goes to the network operator where that is required.
Switchboard work is carried out to AS/NZS 3000. Current Wiring Rules require residual current device protection on final subcircuits, which is why an upgrade normally means adding safety switches rather than just swapping fuses for breakers. A safety switch is designed to disconnect within about 30 milliseconds when it detects roughly 30 milliamps leaking to earth — fast and sensitive enough to make the difference in an electrocution. Work is done under Licence No. 221442C and certified with a CCEW.
Every job is quoted after I have seen it — these are the things that move the number:
The clearest sign is ceramic fuses with fuse wire, or the absence of any safety switch with a test button. Beyond that: buzzing, warmth, scorch marks, nuisance tripping, or no spare capacity. If you are unsure, a photo of the open board usually tells me a great deal.
For a straightforward domestic board change, most of a working day. I will give you a realistic window before the day so you can plan around it — particularly worth knowing if you work from home or have medical equipment.
There is no rule that forces you to replace a working board simply because it is old. However, once you alter or add circuits, the new work has to comply with current Wiring Rules, which in practice usually means adding RCD protection. Insurers and building inspectors also take a keen interest in old boards.
A circuit breaker protects the wiring from overload and short circuit — it stops cables overheating. A safety switch (RCD) protects people, by detecting current leaking to earth through a person or a fault. They do different jobs, and you want both. An RCBO combines the two in one device.
It can be. Many older Sydney boards are mounted on asbestos backing. It is identified before work starts and handled under the appropriate rules — it does not stop the upgrade, but it does affect the method and the price.
Based in Kellyville and working right across Sydney. These are the areas I am in most often.
Switchboard Upgrades in Kellyville, NSW
Switchboard Upgrades in Rouse Hill, NSW
Switchboard Upgrades in Castle Hill, NSW
Switchboard Upgrades in Baulkham Hills, NSW
Switchboard Upgrades in Bella Vista, NSW
Switchboard Upgrades in Norwest, NSW
Switchboard Upgrades in Parramatta, NSW
Switchboard Upgrades in Blacktown, NSW
Tell me what you need and I'll come back to you with honest advice and an upfront price. No obligation, no pressure.