apartment in Reservoir
Your Trusted Construction Cost Estimators
Delivering Comprehensive Construction Cost Estimating and Quantity Surveying for Building Projects
With a diverse team of experienced quantity surveyors and construction estimators, Duo Tax delivers expert cost management services across the project lifecycle. Whether you're planning a residential renovation, a commercial build, or a large-scale development, our professionals provide detailed cost estimates and quantity surveying services to ensure the success of your projects.

Understanding Our Cost Estimation and Quantity Surveyor Services
Construction cost estimation predicts the actual costs of building projects through detailed analysis of labour rates, material costs, and task duration. Our estimators specialise in creating accurate cost predictions during the pre-construction and tender phases.
Meanwhile, quantity surveying encompasses broader financial and contractual management throughout the entire project. Our quantity surveyors oversee cost planning, contract administration, risk management, and project financial control from start to finish.
The Value of Professional Cost Management and Construction Cost Estimation
Construction cost estimation and quantity surveying are critical aspects of project management that ensure accurate financial planning and control. Both aspects involve detailed cost analysis, with quantity surveyors providing broader financial oversight and contract administration beyond the initial estimation phase.
Accurate construction cost estimation is an essential step for the success of any construction project. It helps in:
- Budgeting: A cost estimate facilitates budgeting and securing funding for the project.
- Decision making: It aids in making informed decisions regarding project feasibility and execution.
- Risk management: It helps identify potential financial risks and develop mitigation strategies.
Duo Tax: Your Complete Cost Management Solution
We deliver complete cost management solutions throughout your project’s lifecycle by combining construction cost estimation and quantity surveying expertise. Our team is experienced in providing more than just detailed cost estimates.
Our Services
Council Report - Section 94 Contribution
Bill of Quantities: Detailed Cost Report
Bank Reports: Initial Cost Report
Bank Reports: Progress Claim Construction Report
Insurance Replacement Valuation Report
Elemental Cost Plan: Preliminary Cost Report

Why Choose Duo QS Construction Estimators for Your Next Building Project?
At Duo QS Construction Estimators, we understand that every building project is unique. That’s why we tailor our services to meet the specific needs of each project. We don’t just crunch numbers; we take the time to understand your project’s unique requirements and goals.
This allows us to provide a more accurate and detailed cost estimate that reflects the true scope of your project.
And with years of experience in the construction industry, our construction estimator team has worked on a wide variety of projects, from small residential renovations to large commercial developments.
Having this experience gives us a unique insight into the complexities and challenges of construction estimating. It also allows us to provide more accurate and reliable estimates, helping to reduce the risk of cost overruns and project delays.
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