One of the most common questions before an EV charger install is whether your switchboard can handle it — and sometimes the honest answer is "not yet." An older board occasionally needs an upgrade before a charger can be added safely. Here's how to tell, and roughly what it costs.
Why a charger can trigger a board upgrade
A home charger is a large, sustained load on its own circuit. Your switchboard has to have the spare capacity and the right safety protection (a modern RCD/RCBO) to run it. Boards that are full, still use old ceramic fuses, or lack safety switches often need work before a charger goes in — not because of the charger, but because they were already at their limit.
How to tell if yours might need it
- Ceramic screw-in fuses rather than modern circuit breakers.
- No safety switches (RCDs) on the board.
- A board that's visibly full, with no spare slots.
- An older home that's never had electrical work done.
What it typically costs
As a general guide, a switchboard upgrade in Australia usually runs somewhere in the range of about $1,500–$3,000, and more for a full board replacement or where the supply itself needs work. That's a market range, not a quote — every board is different, which is exactly why we assess yours before pricing anything, never on install day.
We check your switchboard up front as part of the plan. If an upgrade is needed we tell you before any work starts — and for businesses, grant funding can sometimes help cover it.
Want to know where your board stands? Book a free assessment — grants checked first, installed before your car arrives.
Common questions
Do I need a switchboard upgrade to install an EV charger?
Not always — many boards have the spare capacity and protection already. Older boards with ceramic fuses, no safety switches, or no free slots often need an upgrade first. We assess your board before quoting, never on install day.
How much does a switchboard upgrade cost?
As a general market guide it's usually around $1,500–$3,000 in Australia, and more for a full board replacement. Every board is different, so that's a range, not a quote — we price yours after a look.
How do I know if my switchboard needs upgrading?
Signs include ceramic screw-in fuses instead of circuit breakers, no safety switches (RCDs), a board with no spare slots, or an older home that's never had electrical work. We confirm it in a free assessment.
Want this sorted for your home?
We check every grant you qualify for — free — then install before your car arrives.