At a Glance
The spread on outdoor power in Sydney is wide: a weatherproof powerpoint tapped off an existing circuit near an external wall is a half-day job, while underground cable to a detached studio or granny flat is a full project. Range: $1,500–$4,500 per job.
What's Included in the Price
- Site assessment. Your electrician inspects the route from the nearest power source to where you need the outlet, checking wall construction, underground obstacles, and switchboard capacity.
- Cable run. Along walls in surface-mount conduit, underground in orange-sleeved conduit, or a combination. All work must comply with the AS/NZS 3000 Wiring Rules, including minimum burial depths for underground cable.
- Weatherproof fittings. IP56-rated minimum for sheltered spots (under eaves, covered patios). IP66+ for exposed locations.
- Circuit protection. A dedicated circuit breaker and RCD at the switchboard. Required for any new outdoor circuit.
- Trenching. For underground cable runs. Includes digging, laying conduit at compliant depth, backfilling, and route marking.
What Affects the Cost
- Distance from the switchboard. The dominant factor. A 3-metre run through one wall to a back patio is a half-day job. A 25-metre underground run to a back shed is a full-day-plus project with trenching.
- Wall construction. Drilling through brick, sandstone, or concrete takes longer than timber framing.
- Underground vs surface. Underground runs look cleaner but cost more due to trenching, conduit, and backfill. Surface-mount conduit along walls and fences is quicker and cheaper. Cable sizing must comply with AS/NZS 3008 voltage drop limits on longer runs.
- Switchboard capacity. If the board is full, adding a circuit means upgrading the switchboard first, which is a separate cost.
- Weatherproofing level. Coastal and harbour-side properties need marine-grade fittings that resist salt corrosion. Significantly more expensive than standard IP56.
- Voltage drop. Cable runs over 20 metres may require heavier gauge cable (4mm² or 6mm² instead of standard 2.5mm²) to maintain safe voltage levels.
A weatherproof powerpoint mounted on an external wall near an existing indoor circuit, with a short cable run through one wall, sits toward $1,500. An underground cable run to a detached granny flat, with trenching through an established garden, a separate sub-board, and marine-grade fittings for a coastal property, pushes toward $4,500.
Sydney-Specific Considerations
Sydney's compact urban blocks and diverse housing make outdoor power installations more varied than in most other cities.
Compact inner-city blocks. Newtown, Marrickville, Leichhardt, Petersham. Small backyards with limited access paths mean cable routing is constrained. Getting underground cable past existing garden beds, paths, and fences often requires creative conduit runs along boundary walls rather than direct trenching. Ausgrid manages the distribution network across most of Sydney, so if your switchboard needs attention before new circuits can be added, your electrician coordinates with them.
Granny flats and studios. Sydney's ADU (secondary dwelling) boom means high demand for running dedicated power to detached backyard buildings. These are among the most expensive outdoor power jobs: long cable runs, often underground, with separate sub-boards and sometimes council DA requirements.
Harbour and coastal properties. Mosman, Manly, Bondi, Coogee. Salt air corrodes standard fittings quickly. Marine-grade stainless steel enclosures and IP66+ rated outlets are not optional in these locations. Budget 20 to 30% above standard for materials.
Pool and spa surrounds. Strict electrical exclusion zones apply around pools and spas. Your electrician must comply with AS/NZS 3000 pool zone requirements. Certain equipment cannot be placed within specified distances of the water, and non-compliant installations must be relocated.
Hiring a Licensed Electrician in NSW
All outdoor electrical work in NSW must be done by a licensed electrician. Verify their licence on the NSW Fair Trading website by name or licence number.
After completing the work, your electrician must issue a CCEW (Certificate of Compliance Electrical Work). From July 2026, CCEWs must be submitted digitally via the BCNSW eCert portal.
Ask for:
- Current NSW electrical licence number
- CCEW on completion
- Public liability insurance
- Confirmation they will lodge any required council notifications
Red flags: Suggests using non-weatherproof fittings to "save money," cannot explain the cable routing plan before starting, or does not mention circuit protection. Outdoor work without proper RCD protection is a serious safety issue.
How We Calculate
Estimates are based on current licensed Electrician rates in NSW, adjusted for Sydney's labour market and material costs. All prices include GST. We factor in standard cable runs, weatherproof fittings, circuit protection, and typical job complexity. Switchboard upgrades, landscaping reinstatement, pool zone compliance, or granny flat sub-boards are excluded and would be quoted separately by your Electrician.