
Increasing your single-phase supply capacity is a core Level 2 ASP task. Sydney Power Group (SPG) upgrades consumer mains and service protection so your single-phase supply can safely carry added loads — additional circuits, air conditioning or a home renovation — across Greater Sydney.
Because the works involve the service mains, consumer mains and network connection, an Accredited Service Provider is legally required. All upgrades comply with AS/NZS 3000 and the Service & Installation Rules of NSW.
Do You Need More Capacity?
Nuisance tripping, warm cabling, or an inability to run modern appliances often signals undersized consumer mains or an inadequate service fuse. A single-phase upgrade replaces the consumer mains and coordinates a correctly rated service fuse with the network.
If your demand is very high, we may recommend a three phase upgrade instead for better load balancing.

Correctly Rated Service Protection
The service protection device must match the upgraded mains and the network's supply arrangement. SPG assesses cable size, run length and voltage drop to specify a compliant, future-proof solution.
Upgrades often pair with switchboard modernisation, adding RCDs and safety switches where they are missing.

Managed Network Works
SPG arranges the network connection and the disconnection/reconnection so power is restored quickly and certified to standard.
Wondering if your supply is up to the job? Call SPG on 0466 125 125 or book a free on-site quote.


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
- Increased single-phase supply capacity (amperage)
- Upgraded consumer mains sized for your load
- Service protection device / service fuse rated correctly
- Managed disconnection and reconnection
- Level 2 ASP authorised for Ausgrid, Endeavour & Essential
What Sydney Says About Us
Don't take our word for it — read genuine reviews from real customers who booked our single phase upgrades service on our Google profile, or leave one after your job is done.
Read Our Google ReviewsOUR OTHER LEVEL 2 SERVICES
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Free assessment on any network electrical job. Emergency? We answer around the clock.