Electrician: Dedicated circuit for an air conditioner

Pricing guide

The cost of a dedicated circuit depends mainly on the circuit type, materials and whether the existing switchboard or supply can accommodate it. Standard residential single-phase work with routine access is typically less complex than three-phase or EV/high-draw installations, which usually need heavier cable and different protective devices. Callout fees, after-hours attendance and any required switchboard or supply authority work also affect the final price.

• Circuit type and amperage

  Higher-capacity circuits, three-phase work or EV-ready setups usually require heavier cable and specialised breakers that increase material and handling effort.

• Number of circuits required

  Installing multiple dedicated circuits increases materials, labour time and the likelihood of needing additional switchboard capacity.

• Switchboard and supply capacity

  If the existing board or incoming supply lacks capacity, a replacement or supply authority/metering upgrade is commonly required and expands the job scope.

• Installation route and access

  Routing through walls, ceilings, long conduit runs or under slab can add labour and may require chasing or slab coring.

• Timing and callout arrangements

  A callout fee and standard labour rates usually apply, while after-hours or urgent attendance is commonly charged at a higher rate.