At a Glance
Running power to a detached garage, bungalow, or backyard workshop is one of Melbourne's most common outdoor electrical jobs. A simple weatherproof outlet near existing wiring sits toward $1,450 per job. Underground cable across a larger suburban block pushes closer to $4,300.
What's Included in the Price
- Site assessment. Inspection of the cable route, wall construction, and switchboard capacity.
- Cable run. Surface-mount conduit along external walls, underground in conduit, or a combination depending on route and distance. All work must comply with the AS/NZS 3000 Wiring Rules, including minimum burial depths for underground cable.
- Weatherproof fittings. IP56 minimum for sheltered locations, IP66+ for exposed areas. Melbourne's weather extremes demand quality fittings.
- Circuit protection. Dedicated circuit breaker and RCD at the switchboard.
- Trenching. For underground cable runs. Digging, conduit at compliant depth, backfill, and route marking.
- Certificate of Electrical Safety. Required by ESV for all prescribed electrical work in Victoria.
What Affects the Cost
- Distance from power source. The single biggest cost driver. A nearby outlet through one wall is a straightforward job. Long underground runs to back-of-block structures are full projects.
- Brick veneer walls. Melbourne's dominant construction type. Drilling through brick veneer is standard but slower than timber. Double-brick in older suburbs is harder again.
- Underground conditions. Melbourne's clay soils are heavy to dig but generally stone-free. Tree roots from established gardens can complicate trenching routes. Cable sizing must comply with AS/NZS 3008 voltage drop limits, which may require heavier gauge cable on runs over 20 metres.
- Weatherproofing. Melbourne's temperature range (0 to 40 degrees through the year) means fittings need to handle freeze-thaw cycles and UV exposure. Cheap fittings degrade in 2 to 3 years.
- Switchboard capacity. Older Melbourne homes often have full switchboards. Adding a new outdoor circuit may trigger a switchboard upgrade.
- Number of outlets. Multiple weatherproof points along a fence line or around a deck cost more but are cheaper per point than individual call-outs.
A weatherproof powerpoint mounted on a brick veneer wall near an existing indoor circuit sits toward $1,450. An underground cable run of 20 metres or more to a detached bungalow, with trenching through an established garden, clay soil, a dedicated sub-board, and a heritage overlay requiring painted conduit, pushes toward $4,300.
Melbourne-Specific Considerations
Melbourne's housing, climate, and regulatory environment create specific considerations for outdoor power work.
Brick veneer suburbs. Box Hill, Glen Waverley, Reservoir, Templestowe. Brick veneer is the standard external wall type. Cable routing through the external skin requires core-drilling through brick, then patching and sealing the penetration against weather. It is routine work for Melbourne electricians but adds time compared to timber-framed construction. Melbourne's distribution network is split across CitiPower (inner CBD), Powercor (western suburbs), and United Energy (south-east), so the relevant distributor depends on your suburb.
Detached garages and bungalows. Many Melbourne homes have detached structures at the rear of the block that were built without power. Running a dedicated circuit from the house to a back garage or workshop is one of the most common outdoor power jobs. Underground cable runs of 15 to 25 metres are typical, requiring trenching through established gardens.
Weather resilience. Melbourne's "four seasons in a day" reputation is real for outdoor fittings. Materials need to handle UV, rain, frost, and heat within the same week. Specify quality fittings from the start. Replacing failed weatherproof outlets every couple of years is a false economy.
Heritage overlays. Some inner suburbs (Carlton, Fitzroy, South Melbourne) have heritage overlay restrictions that affect external modifications. Surface-mount conduit may need to be painted to match existing surfaces, and certain facade alterations may need council approval.
Hiring a Licensed Electrician in VIC
All outdoor electrical work in Victoria must be done by a licensed electrician registered with Energy Safe Victoria. A Certificate of Electrical Safety is legally required on completion. The licensed worker must issue it within 30 days.
Ask for:
- Current Victorian electrical licence (verify on ESV website)
- Certificate of Electrical Safety on completion
- Public liability insurance
Red flags: No Certificate of Electrical Safety offered, suggests using indoor-rated fittings outside "because they're under the eaves," or cannot explain the proposed cable route and circuit protection before starting. Outdoor circuits without RCD protection are dangerous.
How We Calculate
Estimates are based on current licensed Electrician rates in VIC, adjusted for Melbourne's labour market and typical property types. All prices include GST. We factor in standard cable runs, weatherproof fittings, circuit protection, and typical job complexity. Switchboard upgrades, landscaping reinstatement, or heritage compliance work are excluded and would be quoted separately by your Electrician.