3 Phase Power Upgrades on the Central Coast
Impact Electrical delivers safe, compliant 3 phase power upgrades across the Central Coast, handled end to end by fully accredited Level 2 ASP electricians. From residential upgrades to commercial and industrial installations, we make the switch to three phase power straightforward, compliant, and built for long-term performance.
If your current power supply can’t keep up with demand, a 3 phase upgrade may be the solution.
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Professional 3 Phase Power Installation
Upgrading to 3 phase power isn’t standard electrical work. It involves supply-side connections, network coordination, and compliance requirements that only Level 2 ASP electricians are authorised to handle.
At Impact Electrical, we manage the entire 3 phase power installation process from assessment and disconnection through to upgrade, testing, and reconnection. You get clear advice, transparent pricing, and work completed properly the first time.
3 Phase Power Upgrades Across the Central Coast
Our Level 2 ASP electricians deliver a complete range of 3 phase power services across the Central Coast for residential, commercial and industrial sites, including:
Installation
We install new 3 phase power systems for residential builds, commercial developments, and industrial sites requiring three phase from the outset. This includes supply authority applications, metering infrastructure, switchboard setup, and all network coordination to deliver a compliant, high-capacity electrical service from day one.
For overhead supply connections, this may also include private power pole installation or upgrades to support the three phase service.
Upgrades
We upgrade existing single phase properties to three phase power for homes and businesses that have outgrown their current supply. This covers properties adding solar battery systems, EV chargers, workshop equipment, or commercial machinery—handling the full process from network approval , consumer mains upgrades, meter reconfiguration, and switchboard work through to reconnection.
Inspection & Load Assessment
Not every high-load issue requires three phase power. We assess your current supply capacity, calculate actual and projected loads, and determine whether an upgrade is necessary or if circuit redistribution or load management will solve the problem more cost-effectively while keeping you compliant.
Supply Authority Coordination
Three phase upgrades require network approval, planned disconnections, and meter reconfiguration. We manage all supply authority applications, arrange isolation windows, coordinate network attendance, and handle compliance documentation—removing the complexity of utility liaison and preventing delays from incomplete submissions.
Testing & Commissioning
Once installed or upgraded, three phase systems must be tested for phase balance, correct metering, earthing integrity, and safe operation under load. We complete all commissioning tests, provide full electrical safety inspections, and ensure your system is ready for reliable, immediate use with no hidden faults or safety risks.

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What Is 3 Phase Power and How Is It Different from Single Phase?
Single phase power is the standard electrical supply for most homes and small properties. It’s suitable for basic household loads but can struggle when demand increases.
3 phase power delivers electricity across three active conductors instead of one, allowing power to be distributed more efficiently. This provides greater capacity, improved load balance, and the ability to run high-demand equipment without overloading the system.
In practical terms, 3 phase power supports heavier electrical loads more reliably and reduces strain on your electrical infrastructure.
When Should You Upgrade to 3 Phase Power?
A 3 phase upgrade is often required when a property’s electrical demand exceeds what single phase power can safely support.
Common reasons to upgrade include renovations or extensions, adding multiple air conditioning systems, installing large appliances, workshops, commercial equipment, EV chargers, or upgrading to three-phase machinery. Businesses expanding operations and older properties upgrading their electrical capacity may also require three phase power.
In many cases, upgrading to 3 phase power also involves upgrades to the property’s consumer mains to ensure the entire supply system remains compliant and capable of handling the increased load.
What Are the Benefits of Upgrading to 3 Phase Power?
Upgrading to 3 phase power allows your property to handle higher electrical loads safely and efficiently. Power is distributed more evenly, reducing the risk of voltage drops, tripped circuits, and overheating.
Three phase power also supports future growth, making it easier to add new equipment, appliances, or systems without further major upgrades. For commercial and industrial properties, it improves operational reliability and performance while supporting specialised machinery and systems.
Why You Should Choose Our 3 Phase Power Service
- Level 2 ASP accredited electricians authorised to carry out 3 phase power installations and upgrades
- Local Central Coast experience, with strong knowledge of network requirements and site conditions
- Clear, upfront pricing, with honest advice before work begins
- End-to-end service, including network coordination, disconnection, upgrade, and reconnection

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The best reviewed electricians on the Coast

Paul Whitbread
Gary Keys
Then we called Impact Electrical & they arranged James to come out within a few hours and charged us a flat rate instead of taking advantage of Sunday rates. He was incredibly kind, fixed everything quickly, and even gave us helpful advice about other issues we might need to address in the future, as our house is a bit older.
I can’t recommend them enough! We were in a desperate situation, and they truly came through for us—genuine heroes! Love local businesses who have such a community minded approach.
Derek McGarrity
Coastie Moes
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Our experienced team is available for all your electrical needs, from repairs to installations. We pride ourselves on great customer service and high-quality solutions. Contact us today for electrical assistance. We're available 24/7 for emergency services.



