Power Point Installation · Mascot
Complete lighting installation, power supply and outlet setup, data cabling and switchboard upgrade.
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Switchboard Upgrades
When does a switchboard need upgrading?
A switchboard generally needs upgrading when it still uses ceramic fuses instead of circuit breakers, lacks safety switches, trips repeatedly, can't handle modern household loads such as air conditioning or EV charging, or shows signs of age like scorching or corrosion. A licensed electrician can assess your specific board and advise what's needed.
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Switchboards aren't something most homeowners think about until something goes wrong, but an outdated or undersized board is one of the more common causes of recurring electrical problems in older homes across the Sutherland Shire and southern Sydney. This page sets out the practical signs that point to a switchboard needing attention.
This is written for homeowners weighing up whether a switchboard upgrade is worth arranging now or something that can wait, and for anyone who's had an electrician mention their board needs work without a clear explanation of why.
01 / Detail
Your switchboard still has ceramic fuses
If your switchboard has round ceramic fuse holders rather than modern circuit breakers, it's likely decades old. These boards were standard practice at the time but don't offer the same level of protection as modern circuit breakers, and they don't reset with a simple flick when something trips. Instead, a blown fuse needs replacing with fuse wire, which is easy to do incorrectly.
Ceramic fuse boards also often lack safety switches altogether, which is one of the more important upgrades from a safety point of view, since a safety switch is what protects a person from electric shock rather than just protecting the wiring from overload.
02 / Detail
No safety switches, or not enough of them
Some older switchboards have circuit breakers but no safety switches, or only one safety switch covering the entire property. A single safety switch covering everything means one faulty appliance anywhere in the house can cut power to the whole property, and it's also less effective at isolating a fault to a specific area.
Current wiring rules under AS/NZS 3000 call for safety switches on power and lighting circuits, and many rental properties in NSW have specific safety switch requirements landlords need to meet.
03 / Detail
The board can't keep up with your household load
Homes now run far more electrical load than when many switchboards were installed, particularly with air conditioning, electric vehicle charging, induction cooktops, and multiple appliances running simultaneously. A board that was adequate decades ago can be genuinely undersized for a modern household, leading to repeated tripping, warm switches, or breakers that won't hold under load.
If you're planning to add a home EV charger, a new air conditioning system, or a significant appliance upgrade, it's worth having an electrician assess whether the existing switchboard has capacity before the new equipment is installed.
- Frequent tripping under normal household use, not just during faults
- Planning to add EV charging, air conditioning, or three-phase power
- Breakers or fuses that feel warm during normal operation
- Buzzing sounds coming from the switchboard
- Visible scorching, rust, or corrosion on the board or its enclosure
04 / Detail
Visible signs of age or damage
Physical signs are worth taking seriously. Scorch marks, discolouration, rust on the enclosure, corrosion around connections, or a board that's visibly cracked or damaged all point to a switchboard that should be assessed rather than left as is.
Boards mounted outside are particularly exposed to weather over time, and older external enclosures don't always seal as well as modern ones, allowing moisture in and accelerating corrosion of internal components.
05 / Detail
Buying, selling or renting out a property
Switchboard condition often comes up during pre-purchase inspections, and an outdated board can be a negotiating point or a compliance concern for buyers. For landlords, NSW rental requirements around safety switches make switchboard condition relevant when preparing a property for tenancy.
If you're in this position, having a licensed electrician assess the switchboard as part of a broader home electrical inspection gives a clear picture of what, if anything, needs upgrading before settlement or a new tenancy.
Frequently Asked Questions
Related questions, answered.
How do I know if my switchboard has fuses or circuit breakers?
Ceramic fuses are round porcelain holders you'd need to fit fuse wire into. Circuit breakers are rectangular switches that flick off and can be reset by hand. If your board has the round ceramic fuse holders, it's an older-style board.
Do I need a safety switch by law in NSW?
Current wiring standards require safety switches on power and lighting circuits, and rental properties have specific obligations. A licensed electrician can confirm what applies to your property.
Can I add a safety switch without replacing the whole board?
In some cases a safety switch can be added to an existing board, but very old fuse-based boards often don't have the room or compatibility for a proper retrofit, in which case a full upgrade is the more practical option. An electrician can assess this on site.
Will a switchboard upgrade fix my repeated tripping?
It depends on the cause. If tripping is due to an undersized or ageing board, an upgrade generally resolves it. If tripping is caused by a specific appliance or wiring fault elsewhere, that fault needs to be found and fixed as well.
Is a switchboard upgrade needed before installing an EV charger?
Not always, but many older boards don't have the spare capacity for the extra load an EV charger draws, so it's worth having the board assessed as part of planning the installation.
How long does a switchboard upgrade take?
This varies by property and the scope of work involved. A licensed electrician can give you a clear idea of timing once they've assessed your existing board.
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What Our Clients Say
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Sean W.
"Darcy and Blake are professional in every sense. We've used them now for two rounds of renovation works. Both times the works were completed to a high standard, communication was clear throughout, and pricing was fair and transparent."
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"Darcy and the team at Stewart Electrical were brilliant to deal with from start to finish. Friendly, professional and found the perfect solution within my budget. Communication confirming the job and timing on the day was great."
Albert P.
"It is great dealing with Darcy and Blake, both projects were delivered on time, budget and with great feedback from our clients. We are looking forward to working with you in future."
Laura W.
"Darcy is quick to respond, manages expectations with a time window of arrival and keeps to it, gets the job done quickly. Was professional dealing with a very fragile light fitting. Friendly, good to chat to."
Andrea L.
"I've worked with Darcy and his team across three properties now. Their professionalism, communication and knowledge is outstanding, honestly rare when dealing with trades. They actually care about the work they do. I won't use any other electrician."
Tahira K.
"Fantastic experience with the ceiling fan installation. Smooth, efficient service at a reasonable price, completed quickly without compromising quality. Friendly, helpful staff who answered all my questions. Highly recommend!"
Maryanne P.
"Very impressed, prompt replies, excellent communication and a very high standard of work. The team are professional, friendly and easy to deal with. Highly recommend!"
Amanda W.
"Excellent communication, prompt to the minute, and lovely to deal with. Darcy fixed our tricky issue with creative thinking and we were very satisfied with the result. Fantastic electrician, highly recommend!"
Shanel H.
"Darcy was the only electrician who took the time to contact me when I lost power. He swiftly identified and fixed the issue, with recommendations to prevent it reoccurring. Professional, punctual, and quoted before starting. Happy to give SEG our repeat business."
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View service04 / Popular Services
Comprehensive electrical capabilities.
Residential, commercial and specialised electrical work, planned around the property and completed with close attention to safety and finish.
01
Switchboard Upgrades
Modern circuit protection and switchboard work.
→02Fault Finding
Methodical diagnosis for electrical faults and outages.
→03Lighting Installation
Indoor, outdoor and architectural lighting work.
→04Power Points
New outlets, circuits and practical power upgrades.
→05Smoke Alarms
Smoke alarm installation and compliance work.
→06Home Rewiring
Full and partial rewiring for established homes.
→More Guides
More electrical guides.
05 / Our Standards
The standards we bring to every job.
Precision Workmanship
Careful installation, thorough testing and a considered finish.
Clear Communication
The scope and next steps are explained in plain language.
Transparent Quoting
A clear written quote sets out the agreed work before it begins.
Respect for Your Space
Work areas are treated carefully and left clean at handover.
Talk to an Electrician
Wondering if your switchboard needs an upgrade?
Our licensed electricians can assess your existing board and explain clearly what, if anything, needs upgrading.