Diona is a multi-utility infrastructure civil engineering company with more than 30 years experience.
With a highly qualified and experienced management team, skilled field personnel, and a large range of specialist plant and equipment, we have a reputation for high quality work, innovative design solutions and exemplary community relations.
Our speciality is medium-to-large utility transmission infrastructure projects in high density urban areas. We have a proven track record of innovative design and construction methods to meet challenging client requirements.
We offer the following benefits that set us apart from our competitors:
Integrated design and construction
Our in-house design team is backed by over 30 years of on-site experience. This means our designs have a high degree of constructability. So works can be completed quickly, cost effectively and with a minimum of costly variations.
A hands-on approach
We're not a management company that hires sub-contractors to do the work. We own the machinery and employ the staff necessary to get your project done. This allows us to ensure an excellent standard of work and respond quickly to changes in scope.
Innovative designs and methods
We know you're under pressure to bring in projects on time and on budget. That's why we’re constantly evolving new design techniques and technology to complete projects quicker, more cost effectively and with less environmental and community impact.
Experience you can rely on
There's no substitute for experience, and Diona has it. Many of our key people – on site and in the management team – have been with us for 10 years or more.
Our projects
Some of Diona's recently completed projects include:
• Hunter Water: Tomago Trunk Main – Ash Island
• Powerlink: 275kV Cable Installation
• Byron Shire Council: Brunswick Area Sewer Augmentation
• Sydney Desalinisation Water Pipeline
• Delta Colongra: 42 Inch Lateral Gas Pipeline
• Gold Coast Desalination Pipeline
• Multiple Energex Transmission – Brisbane Wide
• Multiple Energy Australia Transmission Projects – Greater Sydney and Hunter Regions
• Brisbane Water Main Renewals
• Energy Australia CCL Distribution
Whatever the asset - Diona Deliver!
Latest News
Diona has made headlines with a transmission project in Adelaide
16 June 2011Diona's achievements in Adelaide have featured in the most recent edition of Energy, Source and Distribution magazine.
Diona's contribution to excellence in environmental management
04 February 2011Diona's contribution in the Brunswick Area Sewerage Augmentation Scheme and the Brunswick Estuary Management Plan has been recognised for Excellence in Environmental Management.
APA and Diona Constructs Caltex Lateral Pipeline through heavy traffic
23 December 2010The most recent edition of The Australian Pipeliner features our work on the challenging Caltex Lateral gas pipeline for APA, which was constructed through the Port of Brisbane in Lytton Queensland.
Efficient, Responsive Power Production
16 March 2010Jemena’s Colongra Gas Pipeline project, located on the Central Coast of NSW, has been designed to supply new gas turbines being installed at Munmorah Power Station.
When it comes to infrastructure projects, Diona and Kobelco deliver!
27 October 2009Diona Pty Ltd is presently constructing the Delta Colongra Lateral Pipeline, a 42-inch gas pipelining of heavy wall pipe on the central coast.
