Underground Service Installations

Getting Services in the Ground. Safely and on Schedule.

CMS Contracting handles the groundwork side of in-ground service installations across Greater Sydney and regional NSW. We excavate the trenches, lay the conduits and pipes, install the access pits, backfill, and compact — ready for specialist electricians, plumbers, and communications contractors to pull their cables and make connections.

We’ve worked alongside companies like Fredon, Modcol, and VSL Brady Marine on projects ranging from residential new builds to bridge infrastructure and industrial facilities. Whether it’s a single trench run for a house or a complex multi-service conduit network for a commercial development, we bring the right machines and the experience to get it done without hitting what’s already down there.

Pipe Installation Sydney

What We Install

Pit & Pipe Services for Every Utility Type

Trenching, conduit laying, pit installation, backfill, and compaction, for every in-ground service your project needs.

01

Electrical Conduits

Trenching and conduit installation for mains power, sub-mains, switchboard feeds, and street lighting. Laid to depth with proper sand bedding and marker tape.

02

Telecommunications & Data

Conduit runs for Telstra, NBN, and private communications infrastructure. Multi-duct installations, hauling pits, and junction chambers for commercial and residential networks.

03

Fibre Optic Conduit

Precision trenching and conduit installation for fibre optic cabling. Smooth-bore ducting, gentle radius bends, and draw pits installed to carrier specifications.

04

Sewer & Drainage Pipes

Gravity sewer lines, stormwater pipes, and drainage connections. Correct fall grades, proper bedding, and junction pit installation to Sydney Water and council standards.

05

Gas Pipe Trenching

Trenching and bedding for gas pipeline installation. Correct depth, clearance from other services, and marker tape placement in accordance with gas utility requirements.

06

Water & Plumbing Services

Trenching for water mains, sub-mains, and plumbing connections. Meter pit installation, service connections, and proper backfill to Sydney Water specifications.

Why CMS

Why Contractors Choose CMS for Pit & Pipe

We’ve laid conduit alongside some of Sydney’s largest electrical and communications contractors — Fredon at Berkshire Park, Modcol at Horsley Park, VSL Brady Marine at Homebush Bay Bridge. They come back because we get the groundwork right the first time.

  • DBYD & Service Locating – Every trench starts with Dial Before You Dig enquiries and electronic locating. We identify what’s already down there before we break ground.
  • Right Machine, Right Depth – Mini excavators for tight residential access through to 22T machines for deep commercial runs. We match the machine to the trench.
  • Full Project Capability – Need demolition, excavation, or civil works as well? We handle the whole site under one contract.
  • Clear Scope & Pricing – We quote per metre or per project. The price covers trenching, conduit, pits, bedding, backfill, and compaction — no extras.
Pitt Installation

Pit & Pipe Projects

Recent Pit & Pipe Work Across Sydney

  • Berkshire Park

    CMS contracted for approximately 1 km of electrical service pits for Fredon Industries at the John Morony Correctional Complex, Berkshire Park.

  • Liberty Grove Pool

    In conjunction with Pool Shapers, CMS had the pleasure of undertaking the delicate task of replacing the damaged plumbing and electrical lines at Liberty Grove Pool.

  • Homebush Bay Bridge

    In 2015, CMS were engaged by VSL Brady Marine Joint Venture to carry out demolition, excavation and civil works (including pit and pipe installations) within the approach areas of the…

FAQ

Frequently Asked Questions About Pit & Pipe Installations

Pit and pipe installations involve excavating trenches below ground to lay conduits and pipes for essential services — electrical, telecommunications, sewer, gas, water, and fibre optic. Access pits are installed at junctions and connection points for future maintenance.

We install conduits for electrical power, telecommunications, fibre optic, NBN, sewer and drainage, gas, and water/plumbing. We work alongside your specialist contractor who makes the final service connections.

Costs depend on trench length, depth, soil conditions, and the number of services. Residential pit and pipe for a new build typically runs $3,000–$15,000. Commercial and industrial projects are quoted per metre or per project after a site assessment.

Yes — CMS handles trenching, conduit laying, pit installation, backfill, and compaction. We coordinate with your specialist electricians, plumbers, and comms contractors who pull cables and make final connections through the infrastructure we install.

Absolutely. We use Dial Before You Dig (DBYD) enquiries and electronic service locating to identify existing utilities before every trench. This prevents service strikes and ensures safe excavation around existing infrastructure.