If you are running a mine closure, a power station or refinery decommissioning, a hospital or rail program, or any job big enough that you have been asked to find the largest demolition companies in Australia to price it, this is the shortlist. Most demolition contractors in Australia are small, local and residential. The firms that can take on a major commercial, industrial or remote job are a much shorter list.
We are Perfect Contracting, we wrote this, and we are on the list. We have listed ourselves first and described every company from the record. Other companies appear in alphabetical order, each described from its own published material as at October 2026. Confirm licences and insurances with the relevant state regulator and insurer before you engage any contractor here, Perfect Contracting included.
The biggest demolition companies in Australia for major projects
Perfect Contracting
Perfect Contracting was founded in Sydney in 2010, with offices in Marrickville and Slacks Creek in Queensland. It is part of Perfect Group, which also includes Perfect Concrete Care, Perfect Remediation, Perfect Strip Out, Perfect Hire and DeconCut, with more than 150 people across the group. Its work covers structural and high reach demolition, friable and non-friable asbestos removal, industrial decommissioning, contaminated land remediation, early works and civil.
Licences and systems: SafeWork NSW demolition licence AD211896 and Friable Asbestos Removal Licence AD212957, which covers both Class A and Class B work and is accepted by Workplace Health and Safety Queensland for work in Queensland. ISO 9001, ISO 14001 and ISO 45001 certified, all under one integrated management system. Over 100,000 hours on the tools last financial year, with no notices from any state regulator.
It owns its high reach and remote controlled fleet rather than hiring it in: a Volvo EC480 high reach excavator, built up to about 75 tonnes, and Brokk remote controlled demolition robots, run by its own operators. It keeps a pool of around 100 people ready to deploy at short notice to regional and remote sites anywhere in Australia, for emergency make-safe work, hazardous materials removal and difficult demolition that local contractors cannot resource.
Work includes Sydney Metro Southwest station demolition, Cross River Rail at Roma Street in Brisbane, Munmorah Power Station, the heritage industrial site at Corrimal, Bathurst Hospital, Broken Hill and Darwin.
DECC
DECC, short for Demolition, Environmental, Civil, Contractors, started in 2007 and now runs offices in Sydney, Brisbane and Canberra. It lists unrestricted demolition, friable asbestos removal and underpinning licences in NSW, the ACT and Queensland, and works across health, education, industrial, infrastructure and commercial projects. Source: DECC.
Delta Group
Delta Group was founded in 1988 and is headquartered in Port Melbourne, with operations in Victoria, New South Wales, Queensland, South Australia, Western Australia and the ACT. It reports more than 1,300 personnel and more than 6,000 plant and equipment assets, and in 2023 was appointed by AGL to demolish Liddell Power Station in the Hunter. Sources: Delta Group, Newcastle Weekly.
Focus Demolition and Asbestos Removal
Focus Demolition is based at Bibra Lake in Perth and has operated for more than 16 years. It holds a Class 1 unrestricted demolition licence and a Class A unrestricted asbestos removal licence in Western Australia, is certified to ISO 14001, and lists industrial projects including power station decommissioning at Broome and Carnarvon and oil tank demolition at Kwinana. Source: Focus Demolition. For a shortlist of specialist friable asbestos and hazmat contractors, see the biggest asbestos and hazardous materials removal companies in Australia.
Liberty Industrial
Liberty Industrial was founded in 2008 and specialises in the decommissioning, deconstruction and remediation of major industrial sites for the energy, mining and resources, and oil and gas sectors, in Australia and in the UK North Sea. Source: Austrade.
Metropolitan Demolitions Group
Metropolitan Demolitions was founded in Sydney in 1972 and is based at St Peters, where it runs its own construction and demolition waste recycling facility. It works across the Sydney CBD and greater NSW. Source: Metropolitan Demolitions.
Rosenlund
Rosenlund is based at Banyo in Brisbane and has operated for more than 50 years across demolition, asbestos removal, remediation, civil works, recycling and plant hire. It lists a high reach fleet that includes a 59 metre machine, which it describes as the largest in Australia. Source: Rosenlund.
What to check before you engage a demolition contractor for a major project
A high reach excavator and remote controlled demolition machines they own
This is the first thing to check on a big job. Tall structures, plant inside operating sites and anything next to live rail or a running hospital are taken down with a high reach excavator from the outside and remote controlled demolition robots, such as Brokks, from the inside. Plenty of demolition contractors in Australia, including some that call themselves commercial, do not own either and hire them in when a job needs one. Hired machines arrive with operators who do not know your site, and only when the hire company has one free. Ask the contractor to list the high reach and remote controlled machines they own, their reach and weight, and who operates them.
People they can put on a remote site
A mine, power station or regional hospital job needs a supervisor, licensed asbestos removalists, operators and labourers on site at the same time, often on a fly in fly out or drive in drive out roster. Ask how many of their own people the contractor can commit, how they will roster and accommodate them, and how fast they can add crew if the program changes.
The right licence in the right state
Each state licenses demolition and asbestos removal differently: SafeWork NSW in New South Wales, the QBCC and Workplace Health and Safety Queensland in Queensland, WorkSafe WA in Western Australia, and the Victorian Building Authority and WorkSafe Victoria in Victoria. Ask for the licence that applies in the state where your job is, check it on the regulator's register, and make sure the licence holder is the company signing your contract.
Class A asbestos, not just Class B
Processing plants, power stations, refineries and older hospitals often contain friable asbestos in lagging, gaskets and insulation. Removing it needs a Class A licence and a Class A supervisor on site. A contractor with both licences can run hazmat removal and demolition as one program.
A certified safety and environmental system
Mining companies, generators, tier 1 builders and government expect ISO 45001, ISO 14001 and ISO 9001 audited by an accredited certifier. Request the certificates and their expiry dates, and ask for the number of regulator notices received in the last financial year.
Waste, contamination and recovery
Steel from a plant decommissioning has real value and the contractor's recovery plan affects your cost. Contaminated material, tank residues and process chemicals have to be classified, tracked and taken to a licensed facility. Ask how both will be handled and reported.
Demolition companies by city and region
For a shortlist of the contractors working in a particular area, see our city guides:
- Biggest demolition companies in Sydney
- Biggest demolition companies in Newcastle and the Hunter
- Biggest demolition companies in Wollongong and the Illawarra
- Biggest demolition companies in Bathurst and the Central West
- Biggest demolition companies in Dubbo and western NSW
- Biggest demolition companies serving Mudgee
- Biggest demolition companies in the Northern Rivers
- Biggest demolition companies in Brisbane
- Biggest demolition companies on the Gold Coast
- Biggest demolition companies on the Sunshine Coast
Talk to Perfect Contracting about a major project
We price demolition, decommissioning, hazardous materials removal and remediation for major projects across Australia. See our pages on mine demolition and closure, specialist demolition services, high reach and Brokk demolition and emergency demolition and make-safe, or send us the job details and an estimator will call you back.
For asbestos and hazardous materials removal contractors, see the biggest asbestos removal companies in Sydney.
Frequently asked questions
Who are the biggest demolition companies in Australia?
For major commercial, industrial and infrastructure work, the established names include Perfect Contracting, DECC, Delta Group, Focus Demolition, Liberty Industrial, Metropolitan Demolitions Group and Rosenlund. Check the licence in your state, the high reach and remote controlled plant they own, and their record on jobs like yours.
Which demolition companies do mine and power station decommissioning in Australia?
Contractors with published decommissioning work include Perfect Contracting (Munmorah Power Station), Delta Group (Liddell Power Station), Focus Demolition (Broome and Carnarvon power stations) and Liberty Industrial (energy, resources and oil and gas sites).
Can a demolition contractor from another state work on my site?
Yes, but the contractor needs the licences that apply in your state, or a licence the regulator there recognises. Ask before you award the work.
Perfect Contracting acknowledges the Aboriginal and Torres Strait Islander people as Traditional Custodians of the country on which we live and work. We pay our respects to the Traditional Custodians and Elders past, present and future, and honour their connection to the land and ongoing contribution to society.