3 Phase Power Upgrades in Sydney
Most homes and businesses in Sydney run on single phase power until the system can't keep up. We provide professional 3 phase power upgrades that handle heavier electrical loads, support modern equipment, and keep your property compliant and ready for what's next.
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Our Specialties
Professional
Skilled and well-presented team.
Trusted
Over 17 years of proven service.
Prompt
Fast response for urgent calls.
Guaranteed
Quality work with full warranty.
Does Your Property Need a 3 Phase Power Upgrade?
Single phase power at 230V works for everyday appliances, but it struggles with EV chargers, ducted AC, solar systems, or heavy machinery. A three phase upgrade brings 400V across three conductors — the capacity your property actually needs.
Heavy Electrical Loads: Ducted air conditioning, electric hot water systems, and industrial ovens overload single phase. Three phase spreads the load evenly, stopping tripped circuits and overheating before they start.
EV Charging Infrastructure: Three phase EV chargers deliver up to 22kW vs 7.4kW on single phase — cutting a 60kWh charge from 7+ hours to under 3. Essential for any property planning EV charging.
Solar & Battery Systems: Ausgrid permits up to 10kW per phase on three phase supplies — meaning up to 30kW solar generation in NSW. Three phase is essential for large solar and battery storage setups.
Commercial & Industrial Use: Businesses running HVAC, lifts, and production equipment simultaneously need the stable balanced voltage of three phase to avoid voltage drops and frequent breaker trips.
Workshop Machinery: Three phase motors in compressors, lathes, and pumps run more smoothly, generate more torque, and last longer — the balanced voltage reduces mechanical stress and heat buildup.
Renovations & New Builds: Upgrading during a renovation is far more cost-effective than retrofitting later. Future-proof your property against growing power demands and add resale appeal for buyers with high electrical needs.

What is included in a 3 phase power upgrades service?
A complete three phase power upgrade service covers Level 2 electrical services, switchboard upgrade or modification, main cable upgrade, new three phase metering, safety and compliance testing, network provider application, etc. Each step must meet AS/NZS 3000 Wiring Rules and NSW Service and Installation Rules. We manage the full scope of work, from the first site assessment through to final network connection, so nothing is missed.
- Site Assessment & Load Calculation:
We assess your existing infrastructure and calculate your actual load requirements before recommending any scope of work. No guesswork. - Switchboard Upgrade or Modification:
We replace or modify your switchboard to handle three phase supply with new circuit breakers, RCDs, and surge protection where required by AS/NZS 3000. - Main Cable (Consumer Mains) Upgrade:
The main cable from your switchboard to the network supply point is replaced with conductors correctly rated under AS/NZS 3008.1 for three phase loads. - Three Phase Internal Wiring:
New dedicated circuits are installed with correct cable sizing, protection devices, and earthing — each tested before going live. - New Three Phase Metering:
Three phase metering is coordinated directly with your network provider (Ausgrid or Endeavour) and installed to their exact technical specifications. - Level 2 ASP Network Connection
As fully accredited Level 2 ASPs, we handle the supply-side connection from the street — the part only a Level 2 provider can legally complete in NSW. - Safety Testing & Compliance Certification
Insulation resistance, earth fault loop impedance, and RCD testing per AS/NZS 3000:2018. A Certificate of Compliance for Electrical Work (CCEW) is issued on every job.
Our 3 Phase Upgrade Process
Simple, structured, and stress-free. Here’s exactly what happens from your first call to final energisation.
Free Site Assessment
We visit your property, inspect your existing supply, and calculate your actual electrical load requirements.
Fixed Upfront Quote
You receive a clear, itemised quote with no hidden costs — approved before any work begins.
Network Application
We lodge all required applications with Ausgrid or Endeavour Energy on your behalf.
Installation & Wiring
Switchboard, cabling, circuits, and metering are installed by our licensed team to AS/NZS 3000 standards.
Safety Testing
Full compliance testing: insulation resistance, earth fault loop, and RCD checks across the installation.
Energisation & CCEW
Your supply goes live and we hand over your Certificate of Compliance for Electrical Work.
Detailed Services
Popular Service We Provide

Metering Services & Smart Meter Installation
We install and configure advanced smart meters to accurately monitor your energy usage and reduce electricity costs with real-time data tracking.

Switchboard Upgrades, Repairs & Relocation
Modernize or relocate your switchboard for improved safety, compliance, and energy distribution — all handled by licensed electricians.

Service Fuse and Fuse Box Repairs & Upgrades
Protect your home from electrical hazards with professional fuse box repairs, replacements, and upgrades using modern safety standards.

Charge overnight instead of hunting for public stations. We install Level 2 home chargers with dedicated 240V circuits and handle permits so you wake up to a full battery daily.
Signs You Need a Three Phase Upgrade
A three phase upgrade makes sense once your property’s electrical demand regularly pushes past what single phase can handle. Here are the clearest signals.
- Frequent Breaker Trips
Circuit breakers tripping regularly means your single phase supply is already at capacity. Three phase distributes that demand across three conductors and stops nuisance trips.
- Planning EV Charging
Single phase maxes at 7.4kW per charger. Three phase brings that to 22kW — cutting charge time by over 60%. Any property adding one or more EVs should upgrade.
- Large Solar System Planned
In NSW, Ausgrid allows up to 10kW per phase — meaning three phase allows up to 30kW of solar exports. Single phase is capped at 10kW, limiting your solar return.
- Adding Industrial Equipment
Compressors, lathes, and industrial air conditioning are engineered for three phase. Running them on single phase causes overheating, poor torque, and premature failure.
- Major Renovation Underway
Adding ducted AC, a larger kitchen, a workshop, or significant new circuits during a renovation is the most cost-effective time to upgrade — far cheaper than retrofitting later.
- Running a Business from Your Property
Multiple HVAC units, servers, commercial kitchen equipment, and office loads running simultaneously demand the balanced, stable supply that three phase provides.
Our promise
Built on Trust, Delivered With Excellence
Safety First
Your safety is our top priority. Every installation, repair, and upgrade we complete follows strict Australian Standards and Level 2 regulations — ensuring total compliance and long-term peace of mind.
Professionalism
We take pride in our work. From residential jobs to large-scale commercial projects, our team delivers neat, efficient, and high-quality results that reflect the professionalism of Top Electricians Sydney.
Reliability
You can count on us 24/7. Whether it’s an emergency power fault or scheduled maintenance, we respond quickly and complete every task on time — with honest communication throughout the process.
Innovation
We embrace modern technology to provide energy-efficient, cost-effective, and future-ready electrical solutions — from smart metering to EV charger installations and sustainable energy systems.
3 Phase Upgrade Costs in Sydney
The cost of a three phase power upgrade in NSW varies based on your property’s existing infrastructure, cable distance, and the full scope of work required. See the breakdown below.
Service / Component | Other Providers (EST.) | Our Competitive Rate | Your Potential Savings |
Call-out Fee | $50 – $150 | $0 (Always Free) | 100% Saving |
3 Phase Smart Meter | $200 – $600 | $0 (Fully Free) | 100% Saving |
Asbestos Panel Removal | $500 – $800 | $450 – $750 | Full Save (if modern board) |
3 Phase Main Breaker | $300 – $500 | $250 – $450 | Full Save (if board is modern) |
Switchboard Upgrade | $800 – $2,000 | $750 – $1,800 | Save ~$1,500 |
Consumer Mains (Cabling) | $500 – $1,500 | $450 – $1,400 | Save ~$1,000 |
Level 2 ASP Labour | $1,200 – $2,500 | $1,000 – $2,200 | Market Competitive |
Note: Prices are estimates and vary based on your property’s existing infrastructure, cable run distances, and full scope of work. Book a free site assessment to receive a fixed, itemised quote before committing to any work.
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Reason for 3 phase Upgrade with us
Your Trusted Local Electrical Experts
Top Electrician delivers professional three phase upgrades with certified expertise, transparent pricing, and reliable service across Sydney.

What Sets Us Apart
Others treat symptoms and disappear. We identify deep-rooted issues and deliver lasting solutions. Our Level 2 licensed electricians provide crystal-clear pricing, rock-solid guarantees, and round-the-clock emergency support. Experience honest expertise refined over 10+ years of dedicated service.
Licensed & fully accredited Level 2 ASP electricians
Our team holds full Level 2 accreditation, ensuring legal compliance and safe installations for every project.
24/7 emergency electrical support
We provide round-the-clock emergency assistance, responding quickly to urgent electrical issues whenever you need us.
Upfront, transparent pricing with no surprises
We quote clearly before starting work, with no hidden fees or unexpected charges added later.
Tailored solutions for residential & commercial clients
We design custom electrical solutions that match your specific property needs and operational requirements perfectly.
Proven track record & verified customer reviews
Our satisfied clients consistently rate our service highly, confirming our commitment to quality and professionalism. Top Electrician combines technical expertise with customer service excellence, making your three phase upgrade smooth and stress-free.
Our service vs other service
Frequently Asked Questions
Everything homeowners and business owners typically ask before booking a three phase upgrade in Sydney.