Delta Group is Australia’s premier Tier One contractor, offering an array of turnkey solutions in civil engineering, demolition, specialist design and construction, asbestos and hazardous waste removal, recycling and waste management, environmental management services, and heavy plant and equipment hire.

Over the last four decades we have assembled an unrivalled portfolio of work and expanded our business to incorporate highly specialised services with proven expertise and high calibre personnel.

  • Our services are available Australia wide

    • CMA Contracting

      CMA Contracting was established in 1980 and became part of Delta Group in 2010, bringing more than 30 years of experience in large scale industrial deconstruction and decommission projects. CMA enjoys an unparalleled reputation for exceeding the expectations of blue chip multinationals across the Australasian mining and resources, chemical and petroleum, and manufacturing sectors. CMA services also involve asset recovery and salvage, remediation and rehabilitation of contaminated land, IFRS compatible plant closure studies, and the removal of asbestos and hazardous waste.


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    • Grange Environmental

      Established in 2018, Grange Environmental Services can offer single source project solutions involving cost effective and proven environmental management practices as well as asbestos and hazardous waste removal, recycling and waste management, civil engineering and construction, commercial and industrial demolition, transport logistics, heavy plant and equipment rental, and specialist design or construction.



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    • Whelan the Warehouse

      Whelan the Warehouse offers the largest range of genuine recycled and re-milled timber and industrial salvage in Australia. Located in Port Melbourne, Whelan the Warehouse plays an integral role in Delta Group’s recycling division – with more than 2m tonnes of construction waste processed each year – and features Australian hardwood timber products such as wall cladding, flooring and decking, custom designed furniture, and architectural posts and beams.


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    • Whelan the Wrecker

      Established in 1892, Whelan the Wrecker is a household name in Melbourne, Victoria. Acquired by Delta Group in 1990 and re-launched in 2000, Whelan the Wrecker services include light commercial demolition and civil earthworks as well as residential demolition and the removal of asbestos or hazardous waste.



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    • Delta Mallard

      Our commitment to a practical Indigenous engagement strategy led to an agreement with 100% Aboriginal owned Mallard Contracting for the creation of Delta Mallard in 2015. Since it was established in 2011, Mallard Contracting has been focused on developing the skills of Aboriginal youth through the provision of turnkey solutions to clients across the mining and resources sector. In turn, Delta Group has been able to learn and apply valuable cultural insights as well as offering Indigenous workers greater scope for developing their individual career pathways.