Residential electrical work sits at the intersection of daily comfort and long-term safety. A poorly planned circuit, an undersized cable, or a skipped RCD can cause anything from a nuisance trip at midnight to a house fire. PrismTech's licensed electricians approach every home job with the same rigour they bring to a commercial switchboard: load calculations first, materials specified to Australian Standards, and every circuit verified before the wall is patched.
Full Rewires and Partial Upgrades
Homes built before the mid-1980s frequently contain rubber-sheathed TRS cable that has long since become brittle and prone to cracking. Others have accumulated decades of piecemeal additions — power points tapped off lighting circuits, circuits with no earth conductor, switchboards that still rely on ceramic fuse wire. A full rewire replaces every submain and final sub-circuit, bringing the entire installation into compliance with the current edition of AS/NZS 3000. Where a full rewire isn't warranted, a partial rewire targets specific problem areas — the kitchen ring main, the bathroom circuit, or the ageing consumer mains — without unnecessary disruption to the rest of the house.
Every rewire project begins with a detailed inspection and load analysis. We map existing circuits, identify overloaded runs, and size new cable to carry the actual demand — not just the minimum permitted. Where three-phase power is available at the street, we can arrange supply upgrades to support EV chargers, ducted reverse-cycle systems, or large workshop loads.
New Builds and Renovation Rough-In
Getting the rough-in right on a new build or renovation avoids costly rectification down the track. PrismTech works directly with builders, project managers, and homeowners to position conduits, cable runs, and outlet boxes before the plasterboard goes up. We coordinate with the inspector at each mandatory stage — slab, frame, and final — so your Certificate of Electrical Safety is issued without hold-ups. Spec inclusions that we build in as standard rather than extras: dedicated circuits for high-draw appliances (ovens, cooktops, dishwashers), weatherproof GPOs in outdoor entertaining areas, and conduit to the meter box for future solar-ready connections.
RCD Safety Switch and Circuit Protection Upgrades
Queensland, NSW, Victoria, and South Australia all mandate residual current devices (RCDs) on power and lighting circuits in new and substantially renovated homes. Older properties are not automatically exempt — and insurers are increasingly scrutinising protection levels at claim time. PrismTech upgrades existing switchboards to include Type 1 or Type 2 surge protection devices (SPDs) alongside RCBOs (combined RCD/circuit breaker), giving each circuit independent fault protection without sacrificing the whole board when one circuit trips.
- Full and partial rewires using 2.5mm² and 4mm² TPS cable rated for the circuit load
- AS/NZS 3000 compliant switchboard upgrades with RCBOs and Type 2 surge protection
- New build rough-in, frame stage, and final inspection sign-off
- Power point, light fitting, and exhaust fan installations
- Outdoor and alfresco GPOs, IP-rated fittings, and garden lighting circuits
- Certificate of Compliance issued for every completed installation
Why Certificate of Compliance Matters
In every Australian state and territory, licensed electrical contractors are legally required to issue a Certificate of Electrical Compliance (CEC) or equivalent documentation for any electrical installation work. This certificate is your evidence that the work was carried out by a licensed tradesperson to the applicable standard. It's required by real estate agents when selling, by insurers when making a claim, and by building certifiers at final inspection. Every PrismTech residential job closes with this documentation — no chasing, no reminders.
Ready to bring your home's wiring up to standard? Contact PrismTech for an obligation-free inspection and quote. We work across the region, we're upfront about timelines, and we don't leave until the job is finished to spec.
Frequently asked questions
Do I need a full rewire or just an upgrade to my switchboard?
It depends on the age and condition of your cable, not just your switchboard. Homes built before 1990 often have TRS rubber cable that needs replacement even if the switchboard looks modern. We inspect both before recommending scope.
How long does a full residential rewire take?
A standard three-bedroom home typically takes three to five working days for the rewire itself, plus time for plasterboard patching and painting by your builder. We schedule work in stages to minimise disruption, and you're never left without power overnight.
Is it compulsory to have RCD safety switches fitted?
All new and substantially renovated homes in Australia must have RCD protection on power and lighting circuits. Existing homes are not legally forced to retrofit unless significant work is performed, but we strongly recommend upgrades given the fire and electrocution risk of unprotected circuits.
Will PrismTech provide a Certificate of Compliance after the work?
Yes, always. A Certificate of Electrical Compliance is issued for every job we complete, regardless of scope. This protects your home's resale value, satisfies your insurer, and confirms the work meets AS/NZS 3000.