Civil Utilities Construction in Perth & WA

Services

  • Water, sewer, fire and gas pipeline installation across all pipe and valve specifications and sizes
  • Electrical and comms conduits and pits
  • Horizontal directional drilling

Westforce Constructions is a Western Australian civil utilities contractor delivering underground services across resources, energy and infrastructure projects. Part of the Raubex group, with more than 320 people across WA, we install water, sewer, fire and gas pipelines alongside electrical and communications infrastructure, on greenfield sites and into live brownfield environments. Utilities usually sit on the critical path, so we plan them with the full site picture and the sequencing these projects demand. We do what we say: services in the ground, on spec, on program, with the records to prove it.

Water, sewer, gas and fire pipelines

We install pipelines of all materials and sizes, from pressurised gas and water lines to gravity-fed sewer and fire protection systems. Our crews work with steel, HDPE, PVC and ductile iron, along with the valve sets, isolation points and connection details that come with them. Whether the job is new gas infrastructure or a tie-in to an existing network, we deliver it with consistent quality and clean as-built records. If we commit to a spec and a date, that is what gets delivered.

Electrical and communications infrastructure

Westforce builds the civil side of electrical infrastructure: conduit networks, cable routes, pits and ducting for power and data. We work as the civil contractor for electrical infrastructure on energy and network projects, coordinating early with electrical and design teams, and working to the WA authority specifications we deal with every week. This includes civil works for substations and switchyards, such as the 132kV switchyard we delivered at the Alkimos Seawater Desalination Plant. See our Electricity Network Infrastructure work for more.

Horizontal directional drilling and trenchless solutions

Where open-cut trenching is not practical, we use horizontal directional drilling (HDD) to install pipelines and conduits with minimal surface disturbance. HDD is suited to crossings under roads, watercourses and existing infrastructure, and it cuts both restoration costs and interface risk. Our trenchless capability gives clients more options for how and where utilities are installed, without holding up the rest of the site.

Underground services built into complete civil packages

Utility scopes rarely stand alone. Ours are usually delivered alongside drainage, structural concrete and earthworks, so we plan with the full site picture in mind. Because we self-perform that work, we stage utilities and drainage cabling to fit the wider program rather than waiting on another contractor. We coordinate with other trades and client teams so the install never becomes the bottleneck, and well-managed QA keeps both schedule and compliance on track, as it did on the water infrastructure works at Beenyup AWRP.

Frequently Asked Questions

How do you avoid striking existing underground services on site?

We locate and prove every existing service before we break ground, using authority records, electronic location and potholing where needed. On brownfield and operating sites that step is non-negotiable, because a single strike can stop a whole program. We map what is already below the surface, plan the dig around it, and coordinate with the asset owner and authorities so there are no surprises.

How do you keep utilities work from delaying the rest of the project?

Utilities usually sit on the critical path, so we plan them with the full site picture rather than in isolation. Because we self-perform earthworks, drainage and concrete as well, we sequence the underground services and drainage cabling to fit the wider program instead of waiting on another contractor. Fewer interfaces, fewer handovers, and one team owning the result.

What standards and utility authority approvals do you work to in WA?

We install to the relevant Australian Standards and to each utility authority’s specifications, and we coordinate approvals and inspections with the asset owner and authorities such as Water Corporation, Western Power and ATCO. Every scope is handed over with the QA records and as-built documentation your compliance and operations teams need, not chased up after the fact.

Can you install services on a live, operating site without disrupting it?

Yes. Much of our utilities work goes into brownfield and operating sites where shutdowns cost real money. We stage tie-ins around your operations and use horizontal directional drilling to cross under roads, services and active areas without open-cut trenching. The goal is straightforward: get the services in with the least possible disruption to what is already running.

Can you deliver the civil scope for substations and switchyards?

We can. As a civil contractor for electrical infrastructure, we build the conduits, cable routes, pits, ducting and concrete that substation and switchyard works depend on. We delivered the civil scope for the 132kV switchyard at the Alkimos Seawater Desalination Plant, working alongside the electrical teams to get the underground services right before the structures went in.

Do you work on remote and regional sites across WA?

Yes. We deliver utility construction services on civil, mining and industrial projects across Perth and regional Western Australia, including remote resources sites. We mobilise the right crews and plant to where the work is, and we know what it takes to keep a regional program moving.

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