01
Why your switchboard matters
Your switchboard is where power enters your home and gets divided into circuits. It decides how well your home is protected against overloads, short circuits and electric shock. Many Sydney homes built before the 1990s still have their original board, designed for a time when a home had a fridge, a TV and a few lights.
02
Warning signs to look for
Any of these suggest your switchboard is due for an inspection:
- Ceramic or rewireable fuses instead of circuit breakers.
- No safety switches (RCDs or RCBOs), or only one protecting part of the house.
- Power tripping regularly, especially when several appliances run at once.
- Flickering or dimming lights across multiple rooms.
- Scorch marks, discolouration, a burning smell, warmth or buzzing from the board.
- A full board with no room for new circuits.
- Signs of damage, loose components or water getting in.
03
When modern living outgrows an old board
Ducted or split-system air conditioning, induction cooktops, EV chargers, pool equipment, solar and batteries all place demands on a switchboard that older boards weren't built for. If you're planning any of these, or a kitchen or bathroom renovation, it's the right time to have your switchboard assessed.
04
A note on asbestos
Switchboards installed before the late 1980s may have a backing panel that contains asbestos. It's generally low risk if left undisturbed, but it should never be drilled, cut or broken. A licensed electrician will recognise these boards and take the right precautions, including arranging safe removal where required.
05
What's involved in an upgrade
A typical upgrade replaces the old board with a new enclosure, circuit breakers and RCD or RCBO protection on every circuit, with each circuit clearly labelled. The installation is tested and you receive a Certificate of Compliance for Electrical Work (CCEW).
Some jobs also involve the service connection or meter, which is managed under your network distributor's rules (Ausgrid, Endeavour Energy or Essential Energy, depending on where you are in Sydney). Your electrician will tell you if that applies and coordinate it. Most switchboard upgrades are completed in a day, with power off for part of it.
Need a hand?
Switchboard Upgrades in Sydney
Modern RCD and RCBO protection for a safer, more reliable home.
This guide is general information for NSW homeowners and isn't a substitute for advice about your specific property. Electrical work in NSW must be carried out by a licensed electrician.
