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Downer has been a driving force behind WA’s critical economic infrastructure for more than 50 years.

From the nickel boom in 1971 to today’s clean energy frontier, our work has fuelled WA’s growth, resilience, and global reputation as a leading energy exporter.

Today, our presence remains strong – maintaining the non-process infrastructure at Chevron’s Gorgon and Wheatstone facilities, and executing large-scale shutdowns at power stations across the Pilbara, Kwinana and the South West – servicing the critical energy infrastructure that not only keeps the lights on in WA, but puts WA up in lights on theg lobal stage as a key energy exporter.

It’s this same long-term commitment that underpins our 50-plus-year partnership with BHP, delivering maintenance and sustaining capital works across Iron Ore, Nickel West and Olympic Dam sites. And through the delivery of sustaining capital projects that extend the life of critical resources and industrial assets – delivered by experienced local project teams – we are delivering services that support the growth and prosperity of Western Australia.

We’re also working behind the scenes to ensure WA’s critical social infrastructure runs smoothly and seamlessly – from ensuring the optimal learning environment in schools and universities to making public housing safe and secure for Perth families. From energy to education, housing to heavy industry – we are proud to deliver the services that support a strong, resilient and diversified WA economy.

Key contracts and projects

Chevron

Delivering non-process infrastructure maintenance and brownfield project works at Chevron’s Wheatstone and Gorgon facilities.

Shutdowns, turnarounds and outages

Delivering large-scale shutdowns with highly experienced crews working around the clock to execute planned maintenance across the Pilbara, Kwinana and South West regions.

Essential utilities services

Delivering essential services to power, gas, water and telecommunications customers across the State, covering retail, transmission, distribution, capital works, and preventative and reactive maintenance.

Social and public housing

Delivering maintenance and repair works and services to over 20,000 social and public housing properties managed by The Housing Authority of Western Australia in the East Metro and North Metro regions of Perth.

Schools integrated facilities management

Delivering integrated facilities management, including lifecycle replacement for eight schools in Western Australia for up to 31 years. As part of a Public Private Partnership project, the four primary and four secondary schools were designed and built using ecologically sustainable principles, with a particular emphasis on reducing energy consumption.

Transperth A and B-Series

Our joint venture with Alstom has delivered 78 three-car B-Series trains for the Transperth network. The trains were designed and built in Australia, and the joint venture also holds the maintenance contract for Transperth’s A and B-Series trains

Road Surfacing

Our road surfacing business has more than 40 years’ experience in WA, delivering a full suite of services – supporting infrastructure across road networks, rail corridors, land developments, airports, utilities, and mining – and tailored to metropolitan, regional, and remote environments.

Our contributions

>2,000
employees
>1,300
suppliers and subcontractors

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