Switchboard upgrade cost in Sydney — the 2026 pricing guide

Straight residential replacement on a 6–8 circuit board: $1,800–$2,400 fully installed. This covers a modern enclosure, main switch, individual RCBOs on every circuit, tails from the meter, disposal of the old board, testing and CCEW.

Mid-range 10–14 circuit upgrade (typical Federation or 4-bed brick veneer): $2,400–$3,500. Includes surge protection and a bit more cabling depth.

Complex jobs — three-phase homes, meter relocation, submain to a granny flat, EV-charger-ready boards, or heritage façade compliance: $4,500–$6,500. If a full rewire of the tails is needed, add another $600–$1,200.

Number of final subcircuits — each RCBO adds cost. A 6-circuit board is materially cheaper than a 14-circuit board.

Enclosure size and location — a surface-mount internal board is fast; an outdoor weatherproof meter box or a recessed cavity board in a heritage terrace takes longer.

Ausgrid isolation — if the main service needs unfusing, we lodge notification and book the outage. Adds a day of admin, not usually $$.

Existing wiring condition — perforated tails, old VIR cable, or an overloaded neutral discovered mid-job means extra work. We tell you before we do it.

Extras bundled in the same visit — surge protection ($120–$220), a spare way for a future EV charger ($180–$260), or a smart energy monitor ($350–$600) are cheapest to add during the upgrade.

The urgent signs: ceramic re-wireable fuses on the mains, any circuit without an RCD, breakers that trip repeatedly, a warm or buzzing switchboard, browned or scorched terminations, or a burning smell near the board.

The insurance signs: your policy renewal asks whether the property has RCDs on all circuits; your building insurance excludes fire damage from non-compliant switchboards; or you are selling and the buyer's inspector flags the board.

The renovation signs: any new circuit for EV charging, ducted air-con, induction cooking, or a hot-water changeover requires the affected part of the installation to comply with the current edition of AS/NZS 3000 — usually easier to upgrade the whole board than to patch it.