Civil
contracting
A trusted civil contractor for earthworks and detailed construction.
Operating under QBCC Licence 15180761, DEMEX delivers safe, efficient and compliant outcomes across civil, demolition and remediation projects. We combine an experienced in-house team, late-model fleet, and value-driven project management to deliver high-quality results from urban developments to remote mine and industrial sites.
Our Civil Capability
We self-perform or manage as principal contractor, with a proven record in:
- Bulk and detailed earthworks
- Road construction and concrete works (kerbs, pavements, slabs, crossovers)
- Services relocation and installation
- Stormwater, sewer and water infrastructure
- Containment cell construction
- Excavation, shoring, underpinning and retention systems
- Slope stabilisation and site build-up
- Contaminated site remediation and asbestos-contaminated soil removal
Our approach emphasises safety, cost control, and sustainability – often achieving 90%+ materials recycling through reuse and onsite processing.
Bulk Excavation
Major earthworks including cut and fill, trenches, basements, roads, and rock excavation.
Detailed Excavation
Precision works such as strip footings, pile caps, pad footings and set-downs.
Contaminated Site Remediation
Safe removal and disposal of hazardous soils and materials to prepare industrial and mine sites for redevelopment.
Civil Demolition & Recycling
Demolition of existing infrastructure (including bridges) with onsite crushing, screening and material recycling for reuse or resale.
Our Civil Fleet
Our modern, well-maintained plant and equipment supports projects nationwide from our Gold Coast, Cairns and Darwin hubs.
Fleet includes:
- Excavators (including high-reach and hybrid models)
- Prime movers, semi-trailers, and super bins
- Hook trucks and haul trucks
- Compaction rollers and telescopic handlers
- Skid steers, forklifts and mini machines
- Dedicated service and water trucks
We manage in-house servicing, transport, permits and maintenance, reducing downtime and ensuring safety compliance.
Talk to us about your next civil project
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