Hurstville's mix of established houses and busy home offices near the CBD hub is putting real pressure on original single phase switchboards. We're Level 2 ASP electricians upgrading Hurstville homes from single phase to three phase power, safely and compliantly.
Three Phase Power Upgrades Built for Hurstville
Hurstville homes (2220) are increasingly outgrowing the single phase supply they were built with, a pattern that shows up locally through established housing near a town centre. Pools, ducted air conditioning, induction cooktops, EV chargers and home offices all draw heavy current, and on a single phase 60 to 100 amp service the result is tripping mains, dim lights, slow appliance performance and accelerated wear on motors.
Upgrading to three phase power gives a Hurstville property the capacity it needs for modern living close to a major town centre. Load is spread evenly across three conductors instead of one, voltage stays stable, and you unlock equipment a single phase service cannot run, ducted air conditioning, an EV charger, or a fully equipped home office and workshop together.
As authorised Level 2 electricians, we're certified to disconnect and reconnect directly to the Ausgrid network that supplies Hurstville, so the whole upgrade is handled by one team from quote to energised.


Why Hurstville Properties Are Upgrading to Three Phase
Hurstville sits within St George & Canterbury-Bankstown, served by the Georges River Council. These are the upgrade triggers we see most often in 2220:
- Older single phase switchboards in established Hurstville houses reaching capacity.
- Renovations and extensions close to the Hurstville town centre.
- EV ownership, with 11 kW and 22 kW chargers increasingly requested.
- Ducted reverse cycle air conditioning replacing older wall units.
- Granny flats and secondary dwellings on larger St George blocks.
- Solar and battery upgrades that need three phase to perform properly.
Our Three Phase Upgrade Process for Hurstville Homes
From the first phone call to switching on your new three phase supply — what to expect from us at every step.
On-Site Assessment
Fixed Quote & Paperwork
Mains & Switchboard
Metering Coordination
Testing & Energisation
Our Energy Providers
Authorised by Sydney's major networks







Reliable capacity
Run the pool, ducted air conditioning, an EV charger and the kitchen together without nuisance trips or sagging voltage.
Future-proof for EVs & solar
Sets the property up for faster EV charging and bigger solar or battery installs without a second upgrade later.
Longer appliance life
Appliances run on cleaner, more stable power, which means less strain on motors and fewer premature failures.
Lower running costs
Reduced line losses and steadier voltage mean your big appliances are not working harder than they need to.
Property value
It is one of the few electrical upgrades a buyer can see the benefit of immediately, and it shows in the sale price.
Compliance peace of mind
A Certificate of Compliance and Level 2 ASP sign off land in your inbox as soon as the job is energised.
Do I Need A Power Upgrade?
You should consider upgrading if you:
- Install multiple high-power appliances or industrial equipment.
- Are renovating or constructing a new building that will have increased energy requirements.
- Require adherence to the latest safety standards and electrical codes, which may mandate more robust systems.
St George's trusted Level 2 ASP
High Demand Electrical is a Sydney based Level 2 Authorised Service Provider (Licence 397193C) trusted across St George including Hurstville and the surrounding 2220 streets, and we work directly with the Georges River Council area's building requirements.
We treat your home the way we'd treat our own, clean cable runs, neat terminations, sealed penetrations, and a switchboard you'll actually be proud to open.
- Fully licensed Level 2 ASP: Authorised to work directly on the Ausgrid network supplying Yowie Bay.
- One team, one invoice: Mains, switchboard, metering and certification handled in-house.
- Transparent fixed quotes after on-site assessment: No surprise variations.
- Approved by major retailers: Origin, AGL, EnergyAustralia, Alinta, Endeavour Energy and Essential Energy.
- NECA, CM3 and Avetta accredited: Safety and quality systems documented.
- Same-week scheduling for most jobs; emergency response 24/7.
Why Choose High Demand Electrical?
High Demand Electrical is a Sydney based Level 2 Authorised Service Provider (Licence 397193C) trusted across St George. With over 300 five star reviews, our work is consistent, tidy and certified.
- Fully licensed Level 2 ASP, authorised to work directly on the Ausgrid network supplying Hurstville.
- One team, one invoice, mains, switchboard, metering and certification handled in house.
- Transparent fixed quotes after an on site assessment, no surprise variations.
- Approved by major retailers: Origin, AGL, EnergyAustralia, Alinta, Endeavour Energy and Essential Energy.
- NECA, CM3 and Avetta accredited, safety and quality systems documented.
- Fast scheduling for most Hurstville jobs, with emergency response available.
We treat your home the way we'd treat our own, clean cable runs, neat terminations, sealed penetrations, and a switchboard you'll actually be proud to open.
What is a Three Phase Power Upgrade?
Single phase power uses one live wire and typically provides up to 240 volts, adequate for light loads but not optimal for heavier consumption without risking system overload and inefficiency. In contrast, a three phase power system incorporates three alternating currents, equally spaced in phase angle, providing up to 415 volts. This configuration allows for a more consistent delivery of power, as the total power delivered never drops to zero, a distinct advantage particularly in industrial settings or in homes with high energy demands.
Upgrade Your Power Today!
Don't let an outdated single phase system hold you back. Upgrade to a robust and efficient three phase power system with Sydney's trusted Level 2 electrical service provider, High Demand Electrical. Our expert team is ready to deliver a smooth, safe, and swift upgrade tailored to your specific needs.
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FAQs
How long does a three phase upgrade in Hurstville usually take?
Most Hurstville residential upgrades are completed within 2 to 5 working days from approval. Ausgrid network coordination can add 1 to 3 weeks lead time depending on whether overhead or underground works are needed on your street.
How much does a single to three phase upgrade cost in 2220?
Costs depend on switchboard scope, mains length, point of attachment changes and Ausgrid network requirements. We provide a detailed fixed quote after a free on site assessment, so there are no surprises mid job.
Will my existing switchboard need to be replaced?
Often, yes. Many Hurstville homes still have an older single phase board that cannot safely accommodate a three phase distribution. We assess this on site and include any switchboard work in the fixed quote.
Do I need three phase power for an EV charger?
For a standard 7 kW home charger, no. For an 11 kW or 22 kW charger, which are becoming more common in Hurstville driveways and garages, yes, three phase supply is required.
Does a three phase upgrade affect my solar system?
It can improve it. A three phase supply lets a hybrid inverter export more evenly and generally performs better than a single phase system straining under a large array, worth discussing if you are planning solar or a battery in Hurstville.
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Powering Your Needs with Expertise
If you’re looking for a reliable, experienced, and prompt electrician, look no further than High Demand Electrical. We cater to all your electrical needs, from routine maintenance to emergency repairs and complete system installations. Our skilled team is committed to providing professional service that ensures your electrical systems run smoothly. Whether it's a small task or a large project, give us a call today. Let us meet all your electrical demands with the quality and reliability you deserve.







