Sydney's trusted underground service mains specialists. New underground connections, mains cable replacement, trench and conduit installation — all requiring a Grade A Level 2 ASP. Based in Alexandria, we cover all of Greater Sydney with same-day quotes and upfront fixed pricing.
We respond within 30 minutes during business hours.
"Needed a meter box upgrade urgently for a property settlement — sorted in under 24 hours. Handled all the Ausgrid paperwork themselves and kept us informed throughout. Absolute professionals."
"Got three quotes — these guys were the most professional by far. Arrived on time, ran the underground cable cleanly and the final price matched the quote exactly. Will definitely use again."
"Power fault at our Surry Hills restaurant on a Friday night. On-site in under 2 hours, diagnosed a blown service fuse, back on by midnight. Saved us the whole weekend's trade. Best Level 2 electricians in Sydney."
Underground service mains work in Sydney requires Class 2B ASP accreditation — only a Level 2 ASP can legally install, repair or replace the underground cables connecting the Ausgrid or Endeavour Energy network to your property.
New underground mains installation for new builds, granny flats, subdivisions and properties requiring a new power connection from the Ausgrid or Endeavour network.
Replacement of ageing, damaged or undersized underground service mains cables. Common in older Sydney suburbs where original underground cabling is past its service life.
Loss of supply caused by an underground cable fault. We locate the fault, excavate and repair or replace the affected section — 24/7 emergency response across Sydney.
Converting your existing overhead service connection to underground — popular in Sydney for improved aesthetics, storm resilience and property value.
Upgrading undersized underground mains to handle increased load — required when adding three-phase power, large HVAC systems, EV chargers or additional dwellings.
Received an Ausgrid or Endeavour defect notice regarding your underground service mains? Only a Level 2 ASP can legally rectify it. We handle the full process.
Underground service mains work in Sydney involves multiple steps — from Ausgrid approval to final energisation. As your accredited Level 2 ASP, we manage every step.
We assess your site, determine the route, cable size and any council or network requirements — then provide a fixed upfront quote.
We submit the required Level 2 ASP application to Ausgrid or Endeavour Energy and obtain approval before any excavation begins.
We excavate the trench to required depth, install approved conduit and draw the underground cable from the network pit to your property.
Underground mains are terminated at both ends, all connections tested and inspected to AS/NZS 3000 before energisation.
We notify the network, arrange energisation, backfill and reinstate the trench — and provide all required compliance documentation.
Underground service mains pricing in Sydney varies significantly based on job scope. We provide upfront fixed-price quotes — no hidden fees, no surprises.
Longer trenches and deeper excavation (required in some Sydney council areas) are the biggest cost drivers. We quote per-metre where possible.
Cutting through concrete driveways, pavers or landscaped areas adds reinstatement costs. We provide full reinstatement quotes upfront.
Single phase, three phase, cable rating and armour requirements all affect material cost. Determined by your load requirements and network specifications.
Ausgrid and Endeavour Energy charge application fees for new connections and upgrades. We include these in your quote so there are no surprises.
Our promise: Fixed upfront pricing before we start — no call-out fees, no hourly rate surprises. Call 0473 522 769 or fill in the form above for your free underground service mains quote in Sydney.
Underground service mains connect your property directly to the Ausgrid or Endeavour Energy network. This is live network infrastructure — and only a Class 2B accredited Level 2 ASP can legally install, repair or replace it in NSW.
Underground service mains fall under ASP Class 2B. A standard electrician — even a licensed one — cannot legally perform this work. Only an accredited Level 2 ASP with Class 2B authorisation can touch the service mains.
All underground service mains work requires a formal network application submitted to Ausgrid or Endeavour Energy. Only an accredited Level 2 ASP can submit this — we handle it as part of every job.
From the network application and trench design to cable installation, connection and final energisation notification — we manage the complete process. You deal with one team, not multiple contractors.
Underground service mains is specialist work — and we've done hundreds of jobs across Greater Sydney. Class 2B ASP accredited, Ausgrid and Endeavour approved, with 90 five-star Google reviews from Sydney customers who trusted us with their underground mains.
Underground service mains are the electrical cables that run underground between the Ausgrid or Endeavour Energy network pit at the street and your property's meter box. They carry the main electricity supply to your home or business. Unlike internal wiring, underground service mains are network infrastructure and can only be installed, repaired or replaced by a Class 2B accredited Level 2 ASP.
Underground service mains cost in Sydney depends on trench length, depth, cable size, surface reinstatement requirements and network application fees. A standard residential underground mains job typically differs significantly from a long-run commercial installation. We provide upfront fixed-price quotes — call 0473 522 769 or fill in the form above for your free no-obligation quote.
Minimum burial depth for underground service mains in NSW is governed by AS/NZS 3000 and network requirements. Typically 500mm under private property and deeper under roads and footpaths. Depth requirements can vary by council and network zone — we assess this as part of every site evaluation and quote.
In most cases, underground service mains installed entirely within your private property do not require council approval — only the Ausgrid or Endeavour Energy network application submitted by our Level 2 ASP team. If the trench crosses a footpath or road reserve, a council road opening permit may be required. We advise you on this during the quote stage and can assist with applications where needed.
No. Underground service mains are network infrastructure and require Class 2B ASP accreditation to install, repair or replace legally in NSW. A standard licensed electrician cannot submit the required network application or perform the connection to the Ausgrid or Endeavour Energy network pit. Only an accredited Level 2 ASP can complete this work lawfully.
Yes — we install underground service mains across all of Greater Sydney and the Blue Mountains. Accredited with both Ausgrid (metropolitan Sydney) and Endeavour Energy (Western Sydney, Blue Mountains), we cover every network zone — from the Inner West and Eastern Suburbs to Penrith, Campbelltown, the Hills District and beyond. Call 0473 522 769 to confirm availability for your suburb.
Class 2B ASP accredited · Upfront fixed pricing · All reinstatement included · 90 five-star reviews.