When Should I Upgrade My Switchboard? 7 Signs to Look For
Quick Answer
Your switchboard may need upgrading if it still uses ceramic fuses instead of circuit breakers, lacks safety switches (RCDs), frequently trips, feels warm, or can't support additions like solar, a battery or an EV charger. Older switchboards were built for far lighter electrical loads than modern homes use, and upgrading improves both safety and capacity. A licensed electrician can assess your board and tell you exactly what's needed.
What Could Be Causing the Problem?
- Ceramic fuses instead of modern circuit breakers
- No safety switches (RCDs) protecting power and lighting circuits
- The board is old, rusted, or has visible wear and scorch marks
- Circuits trip frequently under normal household use
- You're planning to add solar, a battery, an EV charger, or air conditioning and the board can't support the extra load
- The board is undersized for the number of circuits now in the home (common after renovations)
What Can I Safely Check?
- Look at your switchboard and note whether it has small ceramic cylinders (fuses) or modern rectangular switches (breakers)
- Check if there are labelled RCD/safety switches on the board — most modern boards have at least one
- Note the age of your home and switchboard, if known — homes built before the 1990s often have outdated boards
- Look for visible signs of wear: rust, discolouration, or a burning smell near the board
When Should I Call an Electrician?
- Your board still has ceramic fuses
- There's no visible safety switch (RCD) on the board
- You're planning solar, a battery, or an EV charger and aren't sure if your board can support it
- The board feels warm to touch near the switches, or you notice a burning smell
- You've had an electrical safety inspection recommend an upgrade
What Will an Electrician Check?
- Assess the switchboard's age, condition and capacity against current safety standards
- Confirm whether safety switches are fitted to all required circuits
- Calculate whether the board can support additions like solar, battery storage or an EV charger
- Identify any fire or shock risks from ageing components
- Provide a written quote for the upgrade scope before any work begins
FAQs
Frequently asked questions
How much does a switchboard upgrade cost?
Cost depends on the board's condition, the number of circuits, and whether additional capacity is needed for solar, battery or EV charging — an electrician can quote after inspecting your specific board.
How long does a switchboard upgrade take?
A standard residential upgrade is often completed within a day, though scope varies depending on what's found during assessment.
Will I lose power during the upgrade?
Yes, a short outage is required to safely disconnect and replace the switchboard — your electrician will let you know what to expect.
Is it worth upgrading an old switchboard if it's still working?
Yes — an old switchboard can be working fine day to day while still lacking safety switches or the capacity for modern electrical loads, so it's worth having assessed even without an obvious fault.
Do I need a new switchboard to add solar or a battery?
Not always, but many older boards need at least some capacity upgrade to safely support solar and battery systems — this is confirmed during a site assessment.
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