Capabilities
Decus Engineering provides a wide range of project management, construction and maintenance services to the resources, infrastructure and energy sectors. We offer expertise in complex construction and maintenance activities encompassing structural, mechanical and piping disciplines.
With our suite of services, we are able to offer fully integrated, cost effective, low risk solutions that are tailored to suit your project requirements.
- Structural, Mechanical & Piping
- Tank Construction
- Non-Process Infrastructure
- Pipelines & Welding
- Plant Maintenance
- Solar & Wind Farm Construction

Structural, Mechanical & Piping
- Supply and installation of structural steel
- Installation of mechanical equipment
- Installation of rotating equipment
- Installation of boilers and turbines
- Supply and installation of pipework
- Supply and installation of platework
- Heavy & complex lifting
- Commissioning
Tank Construction
We provide specialised tank and silo construction for process, water and material storage applications. Each project is assessed for constructability off-site and on-site. We also provide remediation of in-service tanks and silos, whether it be floor or wall replacement or weld repair of base materials.
Our innovative bolted tank solutions have been developed to be utilised on large steel tanks that would normally be site built. This enables the tank to be fully workshop fabricated and surface treated, minimising site erection and eliminating on-site welding and surface treatment.
Non-Process Infrastructure
Through the utilisation of our project management and construction strengths we extend our services for the construction of non-process infrastructure.
- Workshops
- Warehouses
- Bulk materials storage facilities
- Wash down facilities
- Fuel and lubrication facilities
Pipelines & Welding
- Process pipework
- Services pipework
- Above and in-ground pipelines
- Water mains
- Gas mains
Plant Maintenance
We understand that regular maintenance of a plant is critical to maximizing output. Our diverse range of services allows us to provide a single point of contact for your needs.
We offer planned shutdown and unplanned maintenance solutions providing supervised crews, not just labour hire. We work closely with you to ensure your downtime and costs are minimised.
To minimise ongoing capital costs in many instances it is more cost effective to refurbish equipment instead of replacing it. We can assist you with this.
- Repair of structural steel
- Repair of platework and liners
- Mechanical repairs
- Structural strengthening
- Modifications for access improvements
Solar & Wind Farm Construction
With renewable energy playing an ever-increasing part of global energy supply we are establishing our self as a key partner in this growing market. Utilising the strengths of our core business we have quickly developed our knowledge and skills in the construction power plants, wind and solar farms.
- Installation of tracking frames and solar PV modules
- Supply and installation of piles for tracking frames
- Installation of wind turbines
- Heavy & complex lifting