Commercial Excavation
Commercial excavation covers bulk earthworks for commercial construction — cutting and filling a site to the levels a building or car park design requires, along with trenching for stormwater, sewer and other services. It uses larger machinery and haulage than a residential job, and typically needs more coordination around traffic management, neighbouring properties and spoil disposal.
Pricing guide: How much does commercial excavation cost?
Typically $40 to $90 per cubic metre for bulk commercial earthworks, depending on ground conditions, site access and how far spoil needs to be carted.
Why homeowners choose it
- Larger excavators and haulage trucks suited to bulk earthworks volumes
- Cut and fill managed to balance material on site and reduce cartage costs
- Services trenching coordinated with civil and building trades
- Traffic management planned for surrounding roads and site access
- Spoil disposal or reuse handled in line with site and council requirements
How it works
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1
Survey & geotech review
The site is surveyed and ground conditions checked before earthworks are planned.
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2
Service location
Underground services are located and traffic management set up before digging starts.
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3
Bulk excavation
Cut and fill earthworks are carried out to the levels the design requires.
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4
Services trenching
Trenches are dug for stormwater, sewer and other services as needed.
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5
Compaction & spoil removal
Fill is compacted to specification and excess spoil is removed or reused on site.
Hiring guide
Questions worth asking before you commit to a contractor.
Ask to see it, not just take their word for it. Insurance protects your property if something goes wrong on site.
Site preparation, disposal of old material, and any council permits can be included or charged separately — get it in writing before you compare quotes.
Some contractors do the work themselves; others subcontract parts of it. Neither is wrong, but you should know who is doing your job.
Old concrete, tree roots or drainage issues are common surprises. Ask how a change of scope gets costed before it happens, not after.
Materials usually carry a manufacturer's warranty. Ask specifically about the contractor's own workmanship warranty too.
Frequently asked questions
How much does commercial excavation cost?
Typically $40 to $90 per cubic metre for bulk commercial earthworks, depending on ground conditions, site access and how far spoil needs to be carted.
What happens if rock or contaminated soil is found?
Rock generally requires different equipment and adds cost, while contaminated soil must be tested and disposed of according to EPA requirements rather than reused on site.
Does commercial excavation include services trenching?
It can — bulk earthworks and services trenching are often scoped together on a commercial site, though they may also be quoted as separate stages.
What permits or checks are needed before starting?
A dial-before-you-dig check for underground services is standard, and larger sites may also need council permits, traffic management plans and, in some cases, environmental approvals.
Commercial Excavation in popular suburbs
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