
Upgrading from single-phase to three-phase supply on the Ausgrid network gives your property the capacity for modern high loads — EV charging, ducted air conditioning, pool equipment and workshops. Sydney Power Group manages single-to-three-phase supply upgrades across the Ausgrid supply area, from application to energisation.
Why Go Three-Phase
Single-phase supply struggles with today's combined loads. Three-phase spreads the load, reduces voltage drop and supports fast EV charging, ducted systems and large appliances. It is increasingly requested across the Ausgrid area's renovated homes. See our supply upgrade service.

What the Upgrade Involves
A three-phase upgrade usually requires new three-phase consumer mains, a switchboard upgrade and often metering changes. We coordinate the network application with Ausgrid, install the mains and metering, and re-energise on three phases.

What It Costs
Cost depends on the mains run, switchboard condition and whether the service is overhead or underground. We quote clearly up front. For context read our Level 2 electrician cost guide.

Book Your Upgrade
Connecting three-phase supply is Level 2 ASP work on the Ausgrid network. We handle the whole job and lodge the compliance. Call 0466 125 125 or use the contact page.


Call us now for a no-obligation quote. Emergency response available 24/7 — on-site within 60 minutes across Sydney.
0466 125 125Get a Free QuoteWhat We Cover
- Single to Three-Phase
- EV, Air Con & Pool Loads
- Consumer Mains Upgrade
- Switchboard Coordination
- Compliance Lodged
What Sydney Says About Us
Don't take our word for it — read genuine reviews from real customers who booked our ausgrid three-phase upgrade service on our Google profile, or leave one after your job is done.
Read Our Google ReviewsRecent Work




OUR OTHER LEVEL 2 SERVICES
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Free assessment on any network electrical job. Emergency? We answer around the clock.