Switchboard Upgrades — Hills District & Hawkesbury

As Featured in Domain.com.au

Oliver Saunders, Director and Licensed Electrician (Lic. 344815C), has been cited by Domain.com.au as an electrical safety authority for Australian homeowners undertaking renovations, advising on safety switches, arc fault detection, surge protection, and smoke alarm interconnection.
We do this work properly. That means a full assessment before we quote, clean installation to AS/NZS 3000 wiring standards, a Certificate of Electrical Compliance on completion, and our lifetime workmanship guarantee covering everything we install.

Why Your Switchboard Might Need Upgrading

Most homeowners don’t think about their switchboard until something goes wrong — a tripped circuit, flickering lights, or an electrician flagging a problem during another job. But there are clear signs that an upgrade is overdue:

• Your home still has ceramic or porcelain fuses. These are a legacy technology. They don’t offer the same protection as modern circuit breakers and RCDs, and they can’t handle the electrical load of a modern home.
• There are no safety switches (RCDs) on your power or lighting circuits. Under current NSW wiring regulations, every domestic circuit must have RCD protection. Older boards often have none.
• Your circuits are tripping regularly. Frequent trips are a sign the board is struggling with the load being placed on it — common in older homes where electrical demand has grown over the years.
• You’re planning a renovation, extension, or granny flat. Any significant addition to your home will increase your electrical load. It’s far better to assess and upgrade the board before the build than discover mid-project that it can’t cope.
• You’re installing an EV charger, ducted air conditioning, or a large appliance. These draw significant current. An older board may not have the capacity or correct protection for these circuits.
• You’re buying or selling a home. A switchboard inspection is standard practice for any pre-purchase electrical check. If the board is flagged as non-compliant, it affects the sale.

What Type of Switchboard Does Your Home Have?

The Hills District and Hawkesbury has a wide range of housing stock — from Federation-era homes in older suburbs through to new builds in Box Hill and The Gables. The age of your home gives a reasonable indication of what you’re likely dealing with:

Ceramic fuse boxes (pre-1980s homes)

The oldest type still in service. Ceramic or porcelain fuse holders with rewirable fuse wire — when a circuit overloads, the fuse wire melts and needs to be replaced manually. No RCD protection, no circuit breakers. These boards are well past their useful life and present a genuine safety risk in a modern home. If your home still has one of these, an upgrade is not optional — it’s overdue.

Older circuit breaker boards without safety switches (1980s–late 1990s)

A significant portion of Hills District homes built during this period have switchboards with circuit breakers but no RCDs (safety switches). Circuit breakers protect your wiring — they don’t protect people from electrocution. These boards don’t meet current NSW wiring standards and are the most common type we upgrade. From the outside they can look functional, which is why many homeowners don’t realise there’s a problem until an electrician inspects them.

Partially upgraded boards (mixed RCD and non-RCD circuits)

Some homes have had partial work done over the years — an RCD added to some circuits but not others. This is common when individual circuits were added or modified without a full board upgrade. A partial upgrade still leaves unprotected circuits and doesn’t meet current standards. A full upgrade brings everything into compliance in one job.

Modern compliant switchboards (2000s onwards)

Homes built or fully rewired from the early 2000s onwards are generally fitted with compliant boards — RCDs on every circuit, circuit breakers, and proper labelling. These boards may still need attention if the home’s electrical load has grown significantly, or if additional circuits are required for renovations, EV chargers, or air conditioning.
If you’re not sure which category your home falls into, a free switchboard assessment takes ten minutes and gives you a clear answer.

What’s Included in a Saunders Switchboard Upgrade

When SEG upgrades a switchboard, this is what you’re getting:

• Full assessment of your existing board — we inspect the current switchboard, identify any compliance issues, and explain exactly what needs to be done and why before any work begins
• Supply and installation of a new switchboard enclosure — we use quality Australian-compliant switchboards built to last
• RCD (safety switch) installation on every circuit — in compliance with AS/NZS 3000:2018 wiring regulations
• New main earth electrode where the existing board doesn’t have one
• Circuit labelling — every circuit clearly labelled so you know what controls what
• Certificate of Electrical Compliance — issued on completion, required by NSW law, and yours to keep for your records
• Full site clean-up — we leave your home the way we found it

If additional work is needed — new circuits, rewiring of specific runs, or three-phase supply — we’ll identify this during the assessment and quote it separately. No surprises.

Asbestos Backing Boards — What Hills District Homeowners Need to Know

In homes built before approximately 1990, the backing board inside the switchboard enclosure — the panel that the fuse holders or circuit breakers are mounted onto — was sometimes made from asbestos-containing material. This was common practice across Australia before asbestos use was phased out, and it’s something we encounter regularly on jobs across the Hills District and Hawkesbury.

An asbestos backing board isn’t necessarily dangerous if it’s in good condition and left undisturbed. The risk arises when it’s drilled into, cut, or disturbed during electrical work — which is exactly what happens during a switchboard upgrade. This is why it matters.

How we handle asbestos backing boards

Saunders Electrical Group is equipped to identify, safely remove, and dispose of asbestos-containing switchboard backing boards as part of a switchboard upgrade. We don’t leave it for the homeowner to organise. If we identify an asbestos backing board during our assessment, we’ll include safe removal and disposal in the scope of the job and quote it transparently upfront.
All asbestos removal is carried out in accordance with NSW SafeWork requirements, and the material is disposed of at a licensed facility.

How to tell if your switchboard might have an asbestos backing board

You generally can’t tell from the outside. If your home was built before 1990 and the switchboard has never been replaced, there’s a reasonable chance the backing board contains asbestos. The only way to confirm is to have a licensed electrician inspect it — which we do as part of every switchboard assessment at no charge. For more detail on how this is handled, read our full guide to asbestos switchboard backing boards in NSW.
If you’re buying a pre-1990 home in the Hills District or Hawkesbury and the switchboard hasn’t been upgraded, this is worth raising with your building inspector before settlement.

Why Choose Saunders Electrical Group for Switchboard Upgrades

There are plenty of electricians who will swap out a switchboard. Here’s what separates Saunders Electrical Group from a standard service call:
Lifetime workmanship guarantee. Every switchboard we install is backed by our lifetime workmanship guarantee. If something we’ve done causes a problem, we come back and fix it. No charge, no argument. This is our standard — and to our knowledge, no other electrician in the Hills District or Hawkesbury offers it.
Local specialists, not a franchise. We’re based in the Hills District. We work in these suburbs every week — Castle Hill, Kenthurst, Dural, Kellyville, Baulkham Hills, Galston, Windsor, Richmond, and surrounding areas. We know the housing stock, we know the common issues, and we’re not dispatching someone from the other side of Sydney.
Clean, respectful work. Our team arrives in uniform, works tidily, and treats your home with care. We explain what we’re doing, why it matters, and we don’t leave until the job is right.
277+ five-star Google reviews. Every review is from a real local customer across the Hills District and Hawkesbury.
2025 Local Business Awards Finalist. We’ve been recognised by the Local Business Awards — a reflection of the reputation we’ve built in this community over many years.
Fully licensed and insured. Electrical Contractor Licence 344815C. All work is carried out by licensed electricians and complies with NSW electrical safety requirements.

Recent Switchboard Upgrade — Glenhaven

A Glenhaven homeowner contacted us after an electrician carrying out unrelated work flagged their switchboard as a problem. The existing board had a mix of ceramic fuses and older circuit breakers — no safety switches on any circuit — and no spare capacity for the additional circuits the homeowner needed for a renovation.
We replaced the board entirely with a modern compliant switchboard, installed RCDs on every circuit, ran the new circuits required for the renovation, and issued the Certificate of Electrical Compliance on completion. The homeowner now has a board that meets current NSW safety standards, has room to grow, and is no longer a liability during a pre-purchase inspection if they sell.
This is one of the most common switchboard scenarios we see across the Hills District — a board that’s been in place since the home was built, quietly becoming a problem as the home’s electrical demands have grown around it.

For a case where the switchboard upgrade was triggered by an EV charger installation rather than a renovation — including a full cost breakdown and asbestos removal — see our West Pennant Hills EV charger case study.

How Much Does a Switchboard Upgrade Cost?

Most residential switchboard upgrades in the Hills District and Hawkesbury range from $1,500 to $3,500 + GST, depending on:

• The size of your home and the number of circuits
• Whether your existing board has any earthing infrastructure in place
• Whether additional circuits, rewiring, or three-phase supply is needed
• Access and location of your meter box

Apartments are typically at the lower end of the range — fewer circuits and earthing is usually already in place. Larger homes with older wiring or a higher circuit count will sit toward the upper end.
Every job is different, which is why we offer a free, no-obligation quote. We’ll assess your switchboard, explain what’s needed, and give you a fixed price before any work begins. No hourly rates, no guesswork. For a full breakdown of what affects the price, see our switchboard upgrade cost guide.

Frequently Asked Questions — Switchboard Upgrades Hills District

Who does switchboard upgrades in the Hills District?

Saunders Electrical Group is the Hills District’s most trusted switchboard upgrade specialist, with 277+ five-star Google reviews and a Lifetime Workmanship Guarantee on every job. We upgrade switchboards across Castle Hill, Kenthurst, Dural, Kellyville, Baulkham Hills, Galston, Windsor, Richmond and surrounding suburbs. NSW Electrical Contractor Licence 344815C. Call 1300 993 560 for a free quote.

How much does a switchboard upgrade cost in the Hills District?

Most residential switchboard upgrades in the Hills District and Hawkesbury cost $1,500–$3,500 + GST, depending on home size, circuit count, and whether new earthing is required. Apartments sit at the lower end; larger homes with older wiring sit toward the upper end. Saunders Electrical Group provides a fixed-price quote before any work begins — no hourly rates.

Do I legally need safety switches on every circuit in NSW?

Yes. Under current NSW electrical regulations and AS/NZS 3000:2018, every domestic final sub-circuit — both power and lighting — must have RCD (residual current device) protection. Many older switchboards in the Hills District and Hawkesbury don’t meet this standard. A switchboard upgrade brings your home into compliance.

How long does a switchboard upgrade take?

Most residential switchboard upgrades take between two and four hours. Larger homes with more circuits, or jobs that involve additional earthing work, may take longer. We’ll give you a clear time estimate when we quote the job.

Will I lose power during the upgrade?

Yes — your power will be off for the duration of the installation. We plan the job to minimise this as much as possible, typically completing the work in a single visit. If you have equipment that can’t be switched off, let us know when you book and we’ll plan around it.

Is a Certificate of Electrical Compliance required?

Yes. Under NSW law, a licensed electrician must issue a Certificate of Electrical Compliance (CCEW) for any prescribed electrical work, including switchboard upgrades. We provide this on completion of every job. Keep it with your home records.

Can I upgrade my switchboard if I’m planning to install an EV charger or solar later?

Absolutely — and it’s worth planning ahead. When we quote your switchboard upgrade, let us know if you’re considering an EV charger, solar system, or battery storage. We can size and configure the new board to accommodate these additions from the outset, which saves cost and disruption later.

What’s the difference between a circuit breaker and a safety switch (RCD)?

A circuit breaker protects your wiring from overload and short circuits. A safety switch (RCD) protects people — it detects current leakage that could cause electrocution and trips in as little as 0.04 seconds. Modern compliant switchboards require both. Older switchboards often have circuit breakers but no RCDs, which is why they no longer meet current safety standards.

My switchboard is outside next to the meter box — does that affect the job?

No. Most homes in the Hills District and Hawkesbury have their switchboard mounted externally next to the meter box, which is standard and straightforward to work with. We’ll assess the exact configuration during the quote.