Civil Services | Underground Civil Utility Packages

Underground Services NSW

SCE Corp delivers underground civil utility works across Sydney and NSW, including stormwater, sewer and water infrastructure, conduits, pits, trenching and surface reinstatement. Our engineering and construction team brings service planning, procurement, site delivery and handover together for property owners, developers, government and principal contractors.

Stormwater and underground services construction during the Epping and Thornleigh civil works project
Stormwater and underground infrastructure from Frank MANESH's Epping–Thornleigh project experience.

Underground infrastructure from planning to handover

SCE delivers connected civil packages: excavation and trenching, bedding and pipework, conduits and pits, crossings, service protection, backfilling, compaction and reinstatement. We plan these activities around existing utilities, access, ground conditions, traffic, environmental controls and the construction programme, with inspection and handover requirements built into the work sequence.

Our delivery can cover engineering, procurement and construction through SCE's qualified team and appointed specialists, or construction to an issued design. We establish the design, utility and connection responsibilities at the outset. Regulated design, licensed trade work and network connections are performed by the appropriately qualified and authorised parties; approval authorities and statutory certifiers retain their independent roles.

Use the two direct service pathways below for new underground services or overhead-to-underground conversion work, or provide the available project information through the SCE enquiry page to discuss the scope and delivery approach.

Stormwater and underground services installation at Epping and Thornleigh
Drainage and underground-service installation at Epping–Thornleigh, part of the civil construction experience Frank brings to SCE.

Choose the relevant underground services pathway

Choose new service installation for additional infrastructure, or overhead-to-underground works where existing services need to be relocated.

Installation of New Services

New stormwater, sewer, water, conduit and pit installation, including trenching and associated civil works. Explore how SCE plans routes, construction stages and utility interfaces.

Explore Installation of New Services

Undergrounding Overhead Services

Civil works for relocating overhead services underground, including trenching, conduits, pits, crossings and reinstatement, delivered with the responsible utility and licensed specialists.

Explore Undergrounding Overhead Services

Underground civil construction scope

The scope is tailored to the infrastructure and site. Our proposal identifies the works, materials, testing, connection interfaces and reinstatement requirements so the delivery responsibilities and inclusions are clear.

Stormwater and drainage civil works

Trenching, bedding, stormwater pipelines, pits, chambers, culverts, headwalls, backfilling and reinstatement, sequenced with the drainage design and inspection requirements.

Sewer and water civil interfaces

Excavation, pipework, pits or chambers, crossings and reinstatement, with network-owner requirements, inspections, testing and authorised connections integrated into the delivery plan.

Conduits, pits and service routes

Civil trenching, conduits, ducts, pits and route preparation for electrical or communications services, coordinated with the responsible designer, utility and licensed contractors.

Protection, crossings and reinstatement

Existing-service protection, road or pathway crossings, controlled backfill, compaction and surface reinstatement, planned around operating infrastructure and the required access controls.

Integrated delivery with clear responsibilities

SCE leads the agreed delivery package, bringing engineering, procurement, construction and project management together. Each specialist function is assigned to the party with the required qualifications, authority and appointment.

SCE delivery responsibilities

  • Develop the construction scope and methodology from the drawings, service information, ground conditions, access requirements and programme.
  • Plan and procure the excavation, trenching, bedding, pipelines, conduits, pits, protection, backfill and reinstatement works.
  • Manage the construction team and appointed specialists, safety and environmental controls, inspection points and construction records.
  • Deliver the civil works and assemble the testing, as-built and handover information required by the contract.

Specialist and authority interfaces

  • Civil, hydraulic, electrical, communications, gas and temporary-works design by the appropriately qualified and appointed designers, engaged by SCE where included in our scope.
  • Utility locating, isolations, regulated trade work, connections, specialist testing and commissioning by the appropriately licensed or authorised providers.
  • Engineering acceptance, certification, regulated declarations and registered-practitioner functions.
  • Council, certifier, utility-provider, owner and other authority assessments, consents or approvals.

Project experience behind the delivery

SCE's completed civil work and its leaders' wider infrastructure experience bring practical knowledge of service routes, excavation, drainage structures and construction sequencing to new projects.

SCE delivery at Mount Colah

The Mount Colah subdivision brought together stormwater installation, sewer relocation and underground services with earthworks, a retaining wall and a suspended driveway. Rock excavation was a key site challenge.

Epping–Thornleigh civil experience

Frank's project experience includes stormwater pipelines from 300 mm to 1350 mm, precast and cast-in-situ pits, a HumeCeptor unit, electrical conduits, utility relocation and under-line crossings. That experience informs service coordination and construction staging at SCE.

Engineering and operational leadership

Frank MANESH brings civil and construction engineering, procurement and programme expertise. Farshid MANESH adds civil engineering, estimating and operational leadership, connecting design information, resources and site delivery.

Stormwater and underground services construction during the Epping and Thornleigh civil works project
Construction evidence from the Epping and Thornleigh stormwater civil works project.
Stormwater and underground services installation at Epping and Thornleigh
Stormwater and underground-service installation from Frank MANESH’s Epping–Thornleigh project experience.

Plan your underground services project

Send the information available at your project stage. SCE can identify the construction priorities and the further design, investigation or utility inputs needed to develop a clear scope.

For a drainage package, review the civil stormwater infrastructure planning guide before the construction scope is confirmed.

Site and access

Site address, photographs, work area, access, existing surfaces, operating constraints, traffic conditions, work windows and proposed programme.

Issued service information

Current drawings, specifications, service type, route, levels, depths, materials, pits, chambers, crossings and available existing-service records.

Interfaces and responsibilities

Utility-owner requirements, locating, design, isolations, licensed trades, connections, adjoining structures, other services and reinstatement boundaries.

Controls and records

Approvals, environmental and traffic controls, inspections, hold points, testing, commissioning interfaces and required construction or handover records.

Delivery controls and verified credentials

The SCE System connects scope planning, procurement, safety, environmental management, quality and project records. View our certifications and credentials alongside the qualifications and appointments required for your particular works.

Underground Services FAQs

What underground services can SCE deliver?

SCE delivers underground civil utility works including stormwater, sewer and water infrastructure, conduits, pits, chambers, trenching, crossings, service protection, backfilling, compaction and reinstatement. The project scope identifies the relevant design, utility, testing and connection requirements.

Can SCE install new underground services?

Yes. SCE delivers new underground civil service packages, bringing route and level information, materials, excavation, installation, inspections and reinstatement into a coordinated construction programme. The proposal identifies specialist testing and authorised connection responsibilities.

Can SCE undertake undergrounding of overhead services?

Yes. SCE delivers the civil works for overhead-to-underground conversion, including trenching, conduits, pits, crossings, backfill and reinstatement. Utility design, isolations, regulated trade work and network connections are carried out with the responsible qualified and authorised parties.

Who manages design, utility approvals and licensed connections?

SCE can lead engineering, procurement and construction through its qualified team and appointed specialists, or build to an issued design. The agreed scope identifies the design and utility responsibilities. Regulated design, licensed trade work and network connections require the appropriate qualifications and authorisation; approval authorities and statutory certifiers retain their independent roles.

How are existing live services managed before excavation?

Available service records, site conditions and utility requirements are reviewed before excavation. The project team establishes suitable locating, scanning or non-destructive exposure, isolation, protection and exclusion controls before the relevant work proceeds.

What information should I provide with an underground services enquiry?

Send the site address, photographs, available drawings and specifications, service types and routes, known existing services, access constraints and target programme. Include utility requirements, approvals, testing or reinstatement information where available. SCE can then identify the next scope and delivery decisions.

Where does SCE undertake underground services works?

SCE undertakes suitable underground civil utility projects across Sydney and NSW. Share the location and proposed scope so we can assess site access, utility interfaces, delivery requirements and the appropriate project team.

Discuss your underground services project

Send your site location, proposed scope, available drawings, known services and target programme. We will discuss the construction requirements, the information still needed and a suitable delivery approach.