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Price variation is driven by whether a simple diagnostic visit resolves the issue or the job requires supply upgrades, switchboard work or civil works. A callout plus on-site diagnosis is typically used for straightforward residential single-phase faults, while three-phase supplies, trenching or distributor involvement generally make the job more complex and often more costly. After-hours attendance and required site approvals can also affect the final price.

• Electrical supply type

  Single-phase residential faults are usually simpler to diagnose than three-phase systems, which often need larger switchgear and heavier cabling.

• Switchboard complexity and upgrades

  If the switchboard needs partial or full replacement or additional switchgear, the scope and materials required typically increase.

• Trenching and long cable runs

  Jobs that need trenching, long cable runs or civil reinstatement usually add time, materials and coordination compared with simple internal work.

• Site type and approvals

  Multi-dwelling, body corporate or commercial sites often require approvals and coordination that can extend timelines and the level of planning needed.

• Callout, diagnosis and timing

  A callout and diagnostic visit is commonly the first step; after-hours attendance or escalation to a scoped inspection can change the overall quote.