If you’ve been told you need a switchboard upgrade, one of the first things running through your mind is probably: “How long will I be without power?” It’s a completely reasonable concern. Whether you’re a homeowner in the suburbs, a strata manager overseeing a block of units, or a small business owner who can’t afford unexpected downtime, we understand that knowing what to expect makes a big difference.
At IZCO Electrical, we get asked this question regularly. So here’s a clear, honest walkthrough of exactly what happens to your electricity supply during an electrical switchboard replacement, and what you can do to prepare.
Will My Power Be Cut Off During a Switchboard Upgrade?
Yes, but only temporarily and only when necessary.
When we carry out a switchboard upgrade in Sydney, we need to isolate the power supply to your property before removing or replacing any components inside the switchboard. This is a non-negotiable safety requirement. Working on live electrical systems is extremely dangerous and illegal without the correct authorisations.
For most residential properties, the power disconnection lasts between two to four hours, depending on the scope of the work. More complex upgrades, such as those involving three-phase power, older ceramic fuse systems, or large strata buildings, may take longer. We always give our customers a clear timeframe before we start.
What About Disconnecting the Main Supply?
This is where it gets particularly important for Sydney residents. If your upgrade requires work on the service cable, metering equipment, or the main fuse connected to the Ausgrid or Endeavour Energy network, a licensed Level 2 Electrician in Sydney must be involved. These are accredited service providers who are authorised to work on the network side of your electrical installation. That means the section between the street and your meter.
A standard electrician cannot legally disconnect or reconnect this part of the supply. Only a Level 2 ASP (Accredited Service Provider) can carry out power disconnection services from the network level.
Is It Safe to Be Home During the Upgrade?
Absolutely. You don’t need to vacate your property during a switchboard upgrade. However, there are a few practical things we recommend you do beforehand:
- Unplug sensitive appliances such as computers, televisions, and refrigerators before the work begins. Power restoration sometimes involves brief fluctuations.
- Save any open work on computers before the disconnection.
- Let your family or staff know about the planned outage so no one is caught off guard.
- Keep the area around the switchboard clear so we can work safely and efficiently.
When we carry out a fuse box upgrade, we always walk you through the process beforehand so you know exactly what to expect and when.
Why Do Switchboards Need to Be Upgraded?
Many Sydney homes, particularly those built before the 1990s, still have older ceramic fuse systems or early circuit breaker panels that simply weren’t designed to handle today’s electrical loads. Modern households run dishwashers, EV chargers, ducted air conditioning, solar systems, and home offices simultaneously.
An outdated switchboard can lead to:
- Frequent tripping of circuits
- Overheating and fire risk
- Inability to add new circuits for renovations
- Failed safety inspections for property sales or strata compliance
As part of our switchboard upgrade Sydney service, we replace old fuse wire systems with modern circuit breakers and safety switches (RCDs), bringing your property up to current Australian Standards.
When Is a Level 2 Electrician Required for a Switchboard Job?
Not every switchboard upgrade requires a Level 2 electrician, but many do. You’ll specifically need a Level 2 Electrician in Sydney when:
- The main service fuse needs to be removed to isolate supply
- There’s an upgrade to a three-phase supply
- New metering equipment is being installed
- A temporary supply is required during construction or renovation
- The work involves connecting or disconnecting from the Ausgrid or Endeavour Energy network
We coordinate directly with the local network provider to schedule disconnections and reconnections on your behalf. This means the work is planned, safe, and fully compliant with all network requirements.
What About Strata Buildings and Small Businesses?
For strata properties, a switchboard upgrade often affects common area metering or individual unit sub-boards. The process is largely the same, but the planning stage is more involved. We work closely with strata managers to notify residents in advance, and where needed, we stage the work to minimise disruption across multiple tenancies.
For small businesses, we know downtime costs money. That’s why we schedule disconnections outside of peak operating hours, such as early morning, after hours, or on weekends, so your operations are impacted as little as possible.
Frequently Asked Questions
Will my power be turned off during a switchboard upgrade, and for how long?
Yes, the electrical supply normally needs to be safely isolated while the switchboard work is completed. A standard residential upgrade may take several hours, while complex, strata or commercial work can take longer; IZCO Electrical can provide the expected outage window before work begins.
What should I expect during a switchboard upgrade and safety switch installation?
The electrician assesses the existing board and circuits, isolates the supply, replaces or upgrades the required equipment, installs suitable protection, tests the work and restores power when the installation is safe. IZCO Electrical can also coordinate any Level 2 disconnection, metering or supply work needed as part of the upgrade.
Do I need a Level 2 electrician to disconnect and reconnect power for a switchboard upgrade?
If the work requires isolation or reconnection on the network side of the supply, a suitably authorised Level 2 electrician is required. IZCO Electrical can confirm whether the project needs Level 2 involvement and manage the authorised disconnection and reconnection as part of the job.
How is a strata switchboard upgrade different from a house upgrade?
Strata projects can involve common-property circuits, multiple meters, individual sub-boards and coordination with owners or building management. IZCO Electrical can plan the work around the broader electrical arrangement and minimise disruption across multiple occupancies where possible.
Could a switchboard upgrade also require an electricity supply upgrade?
Yes. If the incoming supply or consumer mains cannot support the property’s current or planned electrical demand, replacing the switchboard alone may not solve the capacity problem. IZCO Electrical can assess both the board and supply so the work is planned as one coordinated upgrade.
Should I upgrade my switchboard before adding solar panels or an EV charger?
An upgrade may be required if the existing switchboard lacks suitable protection, capacity or space for the new load. IZCO Electrical can inspect the board first and confirm whether it can support the planned solar or EV installation or needs upgrading beforehand.
Ready to Book Your Switchboard Upgrade?
A switchboard upgrade is a planned, safe, and straightforward process when handled by the right team. Your power will be off for a short period, but with proper scheduling and clear communication, the disruption is minimal, and the long-term results are well worth it. A safer property, a fully compliant installation, and an electrical system built for modern demands.
If your upgrade involves network-level disconnection, you need a licensed Level 2 Electrician in Sydney who is authorised to coordinate with Ausgrid or Endeavour Energy directly.
At IZCO Electrical, we handle the full scope of switchboard upgrades across Sydney, from residential homes and strata properties through to small businesses. Our team manages everything from the initial assessment and compliance check right through to network disconnection, upgrade, and reconnection.
Don’t put it off. An outdated switchboard is a safety risk. Request a quote today, and let’s get your property up to standard.
