Overhead or underground power: which is right for your Central Coast property?
Cheaper and quicker versus tidier and storm-proof. How to decide, and what each option costs on the Coast.
Read the guide →
Level 2 ASP service
Underground Power Lines on the Central Coast
New build going UD? Converting from overhead? We handle trench-to-switchboard underground power across the Central Coast.
5.0/5 Google6 Google reviews
ASP AccreditedAll 4 Ausgrid categories
$20M LiabilityPublic liability cover
24/7 EmergencyResponse in 30-60 min
Central CoastGosford to Budgewoi
What is underground power lines (ud)?
Underground (UD) power supply is the norm for most new Central Coast subdivisions and the preferred solution where overhead is impractical - coastal sites, heritage properties, large established gardens. UD work touches the Ausgrid network, so it must be carried out by a Level 2 ASP electrician. We install UD services from the pit or pillar through to your main switchboard.
When you need it
- A new build on a UD-supplied estate (most new subdivisions).
- Converting an existing overhead service to underground.
- A large property where overhead clearance is hard to achieve.
- Tree strike history on an overhead line.
- A subdivision requiring pit and pillar connections.
Our process
Inspection & design
We confirm the route, pit/pillar location and trench requirements with you and your builder.
Quote
Fixed price covering trenching, cable, pit works, reinstatement and energisation.
Ausgrid notifications
NOSW lodged; we coordinate the pit connection date with Ausgrid.
Installation
Trench to AS/NZS 3000 depth with sand bedding and warning tape, cable drawn in, terminated at pit and switchboard.
Energise & certify
Tested, energised, CCEW issued, trench reinstated.
What's included
- Cable sized to your load (16mm, 25mm, 35mm or larger)
- Trenching and compliant sand bedding
- Pit connection, conduit, drawstring
- POA termination at switchboard
- Reinstatement of lawn, paving or driveway
- Ausgrid notifications, energisation, CCEW
Compliance & paperwork
AS/NZS 3000 trench depth and bedding, Ausgrid NOSW + EWR, CCEW on energisation.
Across the Central Coast
Underground Power Lines (UD) across the Coast
We deliver underground power lines (ud) to homes, builders and commercial properties across the Central Coast. From Peninsula suburbs like Woy Woy and Umina through the Gosford CBD, Erina and the beaches, up to the Lakes district and Budgewoi.
See some of our most common service areas:
Common questions
Frequently asked
Can you do the trench or does my builder need to?
Either works. We can excavate ourselves (we carry a mini excavator for small trenches) or work to a trench your builder has already opened - as long as it meets the depth and bedding spec.
Will the driveway need to be saw-cut?
If the cable runs under existing concrete, usually yes. We'll include saw-cutting, conduit installation and patching in the quote.
How long does a typical UD install take?
2-3 days for a standard residential install once Ausgrid's pit connection date is confirmed.
Read before you book
Guides that answer the common questions
Related services
You might also need
Consumer Mains Upgrade
Mains too small for the loads you're adding? We replace and upgrade consumer mains across the Central Coast, overhead or
Learn morePrivate Power Pole Installation
New private poles for subdivisions, rebuilds, rural blocks and granny flats. Hardwood or steel, Ausgrid-compliant, insta
Learn moreTemporary Builders Supply
Site about to kick off? We set up compliant builders poles and temporary supply across the Coast, usually within a week
Learn moreLevel 2 job on your plate? Let's sort it.
Call directly or send a photo of your defect notice, pole or switchboard for a fast indicative quote.