Electrical Panel Upgrade in Toowoomba

Most Toowoomba homes we upgrade fall in the $1,200 – $2,500 range. The final price depends on your home's age, existing wiring condition, how many new circuits you need, and whether Energex needs to upgrade your mains supply. We quote the full scope upfront — no surprises on the day.

1. Initial assessment and load calculation — We inspect your existing panel, count circuits, measure actual load with a clamp meter, and calculate your home's maximum demand under AS/NZS 3000:2018. This tells us exactly how much capacity you need now and for planned additions like solar or EV charging.
2. Design and quoting — We spec a new panel with enough circuit breaker positions for your current needs plus at least 20-30% spare capacity for future use. We select the right main switch rating, busbar capacity, and RCD/RCBO configuration. You get a detailed written quote before any work starts.
3. Energex coordination (if required) — If your mains supply needs increasing (common when going from a 63A to 80A or 100A service), we lodge a connection request with Energex. They'll need to upgrade the service fuse at the pole or pillar. This adds time but we handle all the paperwork.
4. Switchboard installation — We isolate power, remove the old panel (including asbestos backing boards via a licensed removalist if present), mount the new enclosure, and install all circuit breakers, RCDs, surge protection, and main switch. Every circuit is individually labelled.
5. Circuit redistribution and additions — We balance your loads across phases (critical for 3-phase upgrades), run any new circuits to their endpoints, and connect everything to the new panel. Dedicated circuits for high-draw appliances like ovens, hot water systems, and air conditioners get their own RCBO.
6. Testing, verification, and compliance — Every circuit is tested per AS/NZS 3017:2022 — insulation resistance, earth continuity, fault-loop impedance, and RCD trip times. You receive a Certificate of Testing and Compliance as required by the Electrical Safety Act 2002.

For heritage homes in suburbs like Rangeville and Mount Lofty, we often find the main earth conductor is undersized at 2.5mm² or 4mm² rather than the current minimum of 6mm² required by AS/NZS 3000:2018. We upgrade this as part of every panel upgrade — it's non-negotiable for safety.

• It's illegal to do it yourself — Under the Electrical Safety Act 2002 (QLD), all electrical work must be performed by a person holding an electrical worker's licence issued by the Electrical Safety Office. There are no exceptions for switchboard work. Penalties apply.
• Insurance implications — DIY or unlicensed electrical work voids your home insurance. If a fire starts from a switchboard that wasn't installed by a licensed electrician with a valid Certificate of Compliance, your insurer will reject the claim.
• Compliance certification — Only a licensed electrical contractor can issue a Certificate of Testing and Compliance, which proves your installation meets AS/NZS 3000:2018 and has been tested to AS/NZS 3017:2022. Without this certificate, the work legally doesn't exist.
• Getting it wrong is dangerous — Incorrect circuit breaker sizing, missing RCD protection, loose connections, or undersized conductors can cause arc faults, electrocution, or house fires. These aren't theoretical risks — they're the exact faults we find in dodgy switchboards every week.
• Energex won't deal with unlicensed workers — Any mains supply upgrade requires an authorised electrical contractor to lodge the application. Energex will not process requests from homeowners directly.

You can verify any electrician's licence through the Electrical Safety Office at electricalsafety.qld.gov.au. We recommend checking before you accept any quote — it takes 30 seconds and protects you completely.

Solar Panel Systems

Installing a solar system on your Toowoomba home almost always involves your switchboard. The inverter needs a dedicated circuit, a solar supply main switch, and sometimes an export limiting device. If your panel has no spare positions — which is common in homes built before 2000 — the solar installer will tell you to get your switchboard upgraded first. We work alongside solar installers regularly to make sure the panel is ready before they arrive.

EV Chargers

A dedicated EV charger (Level 2, 7kW single-phase) draws 32 amps continuously. That's more than your oven. Most older panels on a 63A mains supply simply can't accommodate that load on top of everything else without tripping the main switch. We upgrade your panel and, where needed, coordinate with Energex to increase your mains to 80A or 100A so the charger runs without drama.

Battery Storage

Home batteries like the Tesla Powerwall or BYD require a dedicated circuit and sometimes a separate sub-board depending on the configuration. Planning this into your panel upgrade now saves you $500 – $1,000 compared to retrofitting it later.

Our recommendation? If you're upgrading your panel now and there's any chance you'll add solar, an EV charger, or batteries in the next 5–10 years, spend the extra $200 – $400 on a larger enclosure with spare positions. It's far cheaper than coming back to upsize later.