10+ years of perfection in every project.
With a presence in 150+ global locations.
ABOUT COMET ESTIMATING
Earthwork is one of the most critical and cost-sensitive stages of construction. It determines site levels, drainage performance, foundation stability, and access for follow-on trades. Inaccurate quantities or poor planning can lead to cost blowouts, delays, and safety risks.
COMET Estimating specialises in professional earthwork estimating services across Australia. Our estimators carefully analyse site plans, grading drawings, soil reports, and project specifications. We calculate excavation volumes, cut-and-fill balances, compaction requirements, haulage distances, plant usage, and disposal costs with accuracy. This methodical approach allows you to plan effectively, avoid surprises, and deliver earthworks on time and within budget.
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Benefit from modern software, updated rates, and precise takeoffs that give you a competitive edge.
Best Rating in your town in estimating business
COMET Estimating provides detailed earthwork cost estimates for projects of all sizes, from small residential sites to complex industrial developments.
Estimates for site clearance, excavation, trenching, grading, and backfilling to support residential developments and housing projects.
Accurate estimates for office projects, retail developments, and multi-storey commercial sites, accounting for soil conditions and haul distances.
Detailed cost planning for factories, warehouses, plants, and large-scale industrial earthworks involving bulk excavation and stabilisation.
Estimating for grading, levelling, and drainage works to achieve compliant finished ground levels.
Cost estimates for foundation excavations, service trenches, drainage, and utility installations.
Estimates covering stripping, haulage, recycling, and disposal of surplus material in line with environmental requirements.
At COMET Estimating, we’ve designed our estimating process to be efficient, accurate, and tailored to your needs. Here’s how it works
Provide site plans, grading drawings, soil investigation reports, and project specifications, including excavation depths and haul distances.
Our estimators calculate excavation volumes, cut-and-fill balances, plant requirements, labour inputs, and disposal costs.
You review the estimate and request updates if required. We refine the figures to reflect site conditions and scope changes.
A complete, itemized, and tender-ready earthwork estimate is issued for budgeting and construction planning.
Construction professionals across Australia choose COMET Estimating because we deliver dependable service, strong technical accuracy, and consistent estimating support that helps projects stay on programme and within budget. Our earthwork estimates are practical, site-ready, and aligned with real construction conditions.
Our estimating team brings hands-on experience across earthwork and civil construction projects. This practical knowledge allows us to prepare realistic cost estimates that reflect actual site conditions, machinery usage, and production rates.
We take a collaborative approach with every client. You receive clear communication, timely responses, and responsive revisions throughout the estimating process to ensure complete alignment with your scope and site requirements.
Our earthwork estimates are fully detailed and clearly structured. All quantities and costs are explained, with no hidden assumptions, unclear allowances, or unexpected variations.
COMET Estimating brings clarity and certainty to earthwork planning. Our accurate earthwork take-offs and cost assessments help Australian contractors plan efficiently, manage budgets with confidence, reduce financial risk, and secure more work through competitive tenders.



Earthwork projects can face serious challenges when estimates are inaccurate. At COMET Estimating, we know that incorrect earthwork quantities and costs can affect scheduling, budgeting, and overall project performance. Below are some of the most common problems caused by wrong earthwork estimates
Underestimating excavation, grading, or hauling quantities can lead to unexpected expenses and budget overruns.
Inaccurate earthwork estimates may cause equipment, labor, or material shortages, resulting in project delays and extended timelines.
Poor planning due to incorrect estimates can increase safety risks and lead to permit or compliance issues on site.
Wrong estimates can result in excess or insufficient materials, labor, or machinery, lowering efficiency and creating waste.
Frequent changes in cost and schedule can damage credibility and harm long-term client relationships.
When earthwork estimates are inaccurate, managing timelines, budgets, and site operations becomes more difficult.
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Inaccurate earthwork estimates can quickly drain your budget and slow down your project. At COMET Estimating, we provide clear and reliable earthwork estimating services that help you avoid costly errors, control quantities, and keep your site work moving smoothly from day one.
59 King Road, HARKAWAY, VIC, 3806
Monday - Friday
09:00 AM Until 05:00 PM