Underground Power and Cable Installation Sydney
Level 2 Accredited Electricians. Trading Since 1999.
Underground power and cable installation in Sydney takes your supply off the overhead wires and runs it below ground, from the street to your meter box or from your house to a shed, granny flat or pool. Only a Level 2 Accredited Service Provider can install the cable that connects your home to the Ausgrid or Endeavour Energy network.
Dave Fenech Electrical Services has done that work since 1999. We’re based in St Marys and handle the whole job ourselves, from the trench and conduit to the cable, the connection and the paperwork.
Underground Electrical Contractors Across Sydney
Trenching, Conduit, Cable and Connection in One Job
Our own electricians and machine operators dig the trench, lay the conduit, pull the cable and connect it. You deal with one team from the first site visit to the final test.
Underground Power to Your House
Overhead to Underground Conversions
Electrical Trenching and Conduit
Cable to Sheds, Granny Flats and Pools
Pits, Pillars and Private Poles
Client Testimonials – Read What Others Have To Say About Dave Fenech Electrical Services
Contact Our Friendly & Experienced Team
Get a Free Quote for Your Underground Power
✓ Trenching and cabling done in-house ✓ Licensed and insured Level 2 electricians ✓ Servicing all areas across Sydney
Why Put Your Power Underground
Most older Sydney homes get their power through an overhead service line strung from a street pole to a bracket on the house. It works, but it’s exposed to trees, wind and the odd tall truck. An underground service sits in a protected conduit below ground instead. Here’s what that changes.
Safer Around the Home
No low wires over the driveway, the yard or the trampoline, and nothing for a falling branch to bring down.
Less Storm Exposure
With no service line in the wind, storms and trees are less likely to tear it off the house.
A Cleaner Look
No wires across the front of the house and no bracket or private pole to maintain.
Room to Build
Second storeys, carports and extensions often clash with an overhead line. Underground takes it out of the way.
What Underground Cable Installation Involves
Underground cable installation means laying electrical cable in a trench instead of hanging it overhead. For most of our customers it’s one of three jobs.
Underground power to the house. We run the cable from the network’s pit, pillar or street pole to your meter box. This is your underground service, or consumer mains, and it’s Level 2 work. If the existing cable is old or undersized, we can also do consumer mains upgrades and replacements.
Cable between buildings. Power from the main house to a detached garage, shed, studio, pool pump or granny flat. A granny flat may also need its own meter, and we can set that up at the same time.
New builds and developments. Underground supply for new homes, duplexes and subdivisions, plus temporary site power while the build is underway.
We can also run underground cabling for garden lighting and automatic gates while the trench is open.
How We Install Underground Cable
We use double insulated XLPE cable that’s tested and meets Australian Standards. It goes inside heavy duty orange electrical conduit. Under the Wiring Rules (AS/NZS 3000), this kind of system generally needs 500 mm of cover in open ground, with less allowed under a concrete slab. We put warning tape in the trench above the conduit so anyone digging later knows there’s a live cable below.
Before we dig, we lift the turf so it can go back down when we’re done. Your yard, driveway and footpath are left clean.
Electrical Trenching Services
Our team digs the trench with our own machines, so you’re not booking a separate excavation contractor and waiting for them to fit in. Soft soil is quick. Sandstone, tree roots and old concrete take longer, and that’s something we’ll spot at the site visit. Where we can’t dig, such as under a driveway, path or established garden, we can often bore underneath instead of cutting it up.
The trench is backfilled and compacted once the conduit is in. We restore the turf we lifted, and if concrete or pavers need cutting, we’ll tell you up front what the reinstatement covers.
Why Sydney Homeowners Choose Dave Fenech Electrical Services
We’ve been trading since 1999. Because we’re accredited for Level 2 work, we can disconnect the overhead line, connect the new underground service and remove the old bracket ourselves. You’re not coordinating an electrician, an excavator and a network contractor.
Send us a few photos of your meter box, the front of the house and where the power comes in from the street. We’ll tell you what’s likely involved before we come out, then give you a fixed quote after the inspection.
Planning solar, a battery or an EV charger? Tell us when you book. We’ll size the new cable for it now so you don’t have to dig twice.
Our Promise: We turn up when we say we will, keep you informed at every step, and leave your yard as tidy as we found it.
- Licensed & Insured Level 2 Electricians
- Accredited With Ausgrid and Endeavour Energy
- Clear Quotes, No Hidden Costs
- Underground Power Across All of Sydney
- Dave Fenech Electrical Services Trading Since 1999
Contact Our Friendly & Experienced Team
Book Your Underground Cable Installation Today
✓ Trench, conduit and cable in one job ✓ Compliance certificate on every job ✓ Free, no-obligation quotes
How Our Underground Power Jobs Get Done
Every site is different, but most jobs follow the same steps.
Step 1: Call us or book online, and send photos of the meter box and where your power comes in.
Step 2: We inspect the site, check the route and the network connection point, then give you a fixed quote.
Step 3: We locate existing services, dig the trench or bore, and lay the conduit and cable.
Step 4: We make the connection, test everything, remove any old overhead service and issue a compliance certificate.
Step 5: We backfill, restore the turf and clean up.
Your power is off for part of the connection day. We agree the time with you first.
How Much Does Underground Power to a House Cost?
From a street pillar, underground power to a house starts from $1,388.20 inc. GST for the first 20 metres of cable, plus $57.20 inc. GST for each extra metre. Underground connections from a pole are quoted individually.
| Job | Guide price (inc. GST) | What’s included / notes |
|---|---|---|
| Underground mains from a street pillar, up to 20 m | From $1,388.20 | Cable only. Connection, metering and switchboard work are extra |
| Each extra metre of cable | $57.20 | |
| Underground connection in the pillar | $275 | |
| Underground connection from a pole | Quoted on site | Every pole connection is priced individually |
| Private pole to underground conversion | $4,400 to $7,700 | Takes the supply underground so you no longer need a pole |
| Trenching | Included on clear sites and new builds | Boring under driveways, landscaped yards and digging around trees or other services are quoted separately |
| Metering, meter box and switchboard work | Quoted on site | Added where your job needs it |
| Standard network application fees | Included | Non-standard network requirements are quoted separately |
Guide prices only, including GST. Every site is different, so we give you a fixed written quote after a free site inspection.
Building a new home? See our new build power packages, which bundle the underground mains, meter box and metering for a lower price.
Within those prices, these are the things that change the cost of an underground electrical service.
- Run length. The distance from the network connection point to your meter box. Longer runs mean more trench, conduit and cable. On long runs the rules can also call for an extra pit or pillar along the way.
- Trenching method and ground. Soft soil, clay, sandstone or rock, and whether we can dig by machine or need to dig by hand near other services.
- Driveways and concrete. Cutting and patching concrete, or boring underneath to leave it untouched.
- Conduit and cable size. A single phase house needs a smaller cable than a three phase home or one planned for solar, a battery or EV charging.
- Pit, pillar or pole position. Where the network connects you, and whether a new private pit or pillar is needed.
- Network requirements. Ausgrid and Endeavour Energy each set their own requirements and paperwork for the connection.
- Meter box and switchboard changes. An old or asbestos meter panel may need replacing, and the cable entry point can move.
- Removing the old overhead service. Taking down the service line, the bracket and any private pole.
- Restoration. Turf, garden beds, pavers and concrete put back after the trench.
Site inspections and quotes are free, and you get a fixed quote in writing before any digging starts.
Overhead to Underground Conversions
Changing from an overhead service to underground is a job we do regularly across Sydney. The usual route is a trench from your meter box to the street pole, with the new cable running up the pole in a protective cover and connecting to the network’s overhead mains. If your street already has underground supply, we connect to the nearest pit or pillar instead.
Once the new service is live, we take down the old overhead line and remove the point of attachment bracket. If your home was fed through a private pole, we can remove it too. If you’d rather keep an overhead supply but your private pole is rotting, we also do power pole replacement.
Conversions often happen alongside a renovation. If you’re adding a second storey or a carport under the line, it’s worth talking to us before the builder starts.
Underground Power FAQs
Who can install underground power to my house in Sydney?
The cable between your home and the network has to be installed by a Level 2 Accredited Service Provider. Ausgrid and Endeavour Energy only accept that work from accredited contractors. We’re accredited and have done it since 1999.
How much do underground power lines to a house cost?
From a street pillar, underground mains start from $1,388.20 inc. GST for the first 20 metres of cable, plus $57.20 inc. GST per extra metre, and the connection in the pillar is $275 inc. GST. Metering, meter box and switchboard work are added where needed. Trenching is included on clear sites and new builds. Boring under driveways, landscaped yards and digging around trees or other services are quoted separately, and so are connections from a pole. Inspections and quotes are free.
How deep does underground electrical cable need to be?
For cable in heavy duty conduit, the Wiring Rules generally call for 500 mm of cover in open ground. Different depths apply under concrete and for other installation methods. We follow the depth that applies to your job.
Can you convert my overhead power to underground?
Yes. We trench from your meter box to the street pole or the nearest network pit, install the new cable, connect it and remove the old overhead line and bracket.
Do you do the trenching yourselves?
Yes. Our electricians and machine operators dig the trench, so there’s no separate excavation contractor to organise.
Can you run cable under my driveway without cutting it?
Often, yes. Where the ground and access allow it, we bore under the driveway or path. If boring won’t work, we’ll explain the cutting and reinstatement before we start.
Can you run power to my shed, pool or granny flat?
Yes. We run underground cable from the main switchboard to sheds, garages, pool equipment and granny flats. If the granny flat needs a separate meter, we can do that as part of the same job.
Will I lose power during the job?
Only for part of the day while we disconnect the old service and connect the new one. The trenching and cable work happen with your power still on. We agree the shutdown time with you first.
How long does an underground power installation take?
A straightforward residential run is usually done in a day or two on site. Rock, long runs, concrete and the network’s own booking process can stretch that out. We’ll give you a realistic timeframe with your quote.
Do I need approval from Ausgrid or Endeavour Energy?
Yes, changes to your connection go through your network. As a Level 2 ASP, we handle the notifications and paperwork for the work we do.
What happens to the old overhead line and bracket?
Once the underground service is live, we disconnect and take down the old service line and remove the bracket from your house. Private poles can be removed as well.
Will my meter box need upgrading?
Sometimes. If the meter panel contains asbestos, has no room for the new cable entry or the switchboard is old, we’ll recommend an upgrade and include it in the quote.
Do you install private pits and pillars?
Yes. Some sites need a private pit or pillar, for example on long runs. The NSW Service and Installation Rules set when one is required, and we’ll tell you if your site needs one.
Book Your Underground Power Job Today
Dave Fenech Electrical Services digs, cables and connects underground services for Sydney homes, builders and developers. One Level 2 team handles the trench, the network connection and the removal of your old overhead line.
We’ve been trading since 1999, we give fixed quotes after inspection, and every job comes with a compliance certificate. Book a site visit or call 02 9833 9566 to get a quote for underground power and cable installation in Sydney.