Signs your switchboard needs an upgrade
Your switchboard sends power to every circuit in the house and switches it off when something goes wrong. Many older Busselton homes still have boards that were never designed for today's air-con, induction cooktops and EV chargers. It's worth getting yours looked at if:
- It still has ceramic or rewireable fuses
- There are no RCD safety switches, or only one
- Power trips or fuses blow regularly
- You're adding an EV charger, ducted air-con, induction cooking or a battery
- You're renovating, extending, selling or renting out the property
Don't open the switchboard yourself
Burning smells, scorch marks, buzzing or a board that feels hot need an electrician promptly. Turn off what you safely can and keep clear. For sparking or damaged wires at the meter or street connection, call Western Power on 13 13 51.
What a switchboard upgrade includes
Every board is different, but a typical upgrade replaces the old fuses and switchgear with modern equipment in the same meter box or a new enclosure:
- Circuit breakers in place of fuses, one for each circuit
- RCD safety switches, or combined RCBOs, protecting power and lighting circuits
- A new main switch, and space for future circuits
- Surge protection, if you want it
- Clear labelling of every circuit, then testing of the whole installation
- An Electrical Safety Certificate for the work
Switchboard or supply upgrade?
Your switchboard usually shares the meter box with the Western Power meter, but they're different things. Upgrading the board changes the breakers and safety switches inside your home's installation. Upgrading the supply, for example going from single-phase to three-phase for a large EV charger or ducted air-con, changes the connection from the street and needs an application to Western Power.
Supply upgrades cost more and take longer. A good electrician will tell you whether you actually need one before quoting it.
How much does a switchboard upgrade cost?
For a typical single-phase home, published WA prices sit around $1,300 to $1,700 including GST. Replacing old ceramic fuses, adding circuits or moving to a bigger or three-phase board costs more.
| Job | Typical price | What changes the price |
|---|---|---|
| Switchboard upgrade, typical home | $1,300 – $1,700 | Board size, number of circuits, safety switches needed |
| Replacing old ceramic fuses | From about $1,800 | Condition of existing wiring, meter box space |
| Larger or three-phase board | From about $2,400 | Three-phase supply, extra circuits, new enclosure |
Guide prices only, including GST, based on fixed prices published by Perth electricians in September 2026. Busselton jobs can differ with travel and site conditions. Your electrician confirms the price for your job before work starts.
What usually pushes the price up:
- A meter box that's too small or damaged and needs replacing
- Faults found on existing circuits once RCDs are fitted (they're doing their job)
- Extra circuits for an EV charger, air-con or induction cooktop
- Three-phase supply, or work Western Power needs to approve
Comparing quotes
Two quotes can look similar and include very different things. Ask each electrician:
- Is every circuit protected by an RCD or RCBO, or only some?
- Is the enclosure or meter box being replaced, or reused?
- Is surge protection included?
- Is any Western Power or supply work needed, and is it in the price?
- What happens, and what does it cost, if faults turn up on existing circuits?
On the day
Expect the power to be off for part of the day. Plan around the fridge and freezer, work from home, and anyone relying on medical equipment. Make sure the electrician can reach the meter box, and keep pets and gates sorted.
Common questions
How long does a switchboard upgrade take?
A standard home upgrade is usually done within a day, with the power off for part of that time. Larger boards, three-phase work or faults found on existing circuits can add time. Your electrician will give you an idea when they quote.
Do I need a switchboard upgrade to install an EV charger?
Not always. A 7 kW charger needs its own circuit and spare capacity on your board. Many newer boards can take one as is; older boards with fuses usually can't. See EV charger installation for what the electrician checks.
Is a switchboard upgrade required when I sell or rent out my home?
WA law requires at least two RCD safety switches protecting all power point and lighting circuits before a home is sold, rented or hired. If your board doesn't have them, you'll need them added, which often means upgrading the board.
Do I need three-phase power?
Most homes don't. Three-phase is worth considering for large ducted air-con, a 22 kW EV charger or a big solar and battery system. Changing from single-phase to three-phase is a supply upgrade that involves Western Power, so it costs more and takes longer.
Will I get a certificate for the work?
Yes. In WA, the electrical contractor must give you an Electrical Safety Certificate within 28 days of finishing installation work. Keep it with your property records.
