
Australia’s Most Reliable Cost Construction Estimation Service
We turn your construction plans into clear, accurate costs you can count on fast.
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Why Australians Choose SJ Estimating House
We combine years of hands-on experience with the latest technology to deliver estimates you can trust, every time.
Industry-Leading Software
Advanced algorithms ensure precise cost calculations with minimal human error.
24-48 Hours Turnaround
Fast delivery without compromising quality. Get your estimates when you need them.
Transparent Pricing
No hidden fees. Clear, upfront pricing structure for all our estimation services.
Nationwide Coverage
Serving builders and developers across all states and territories of Australia.
Our Cost Estimating Services
From residential homes to large commercial projects, we provide accurate, detailed cost estimates that help you make informed decisions and stay within budget.
Residential Estimating
Comprehensive cost estimates for houses, apartments, and residential developments.
Commercial Estimating
Detailed estimates for commercial properties and business developments.
Material Takeoffs
Precise quantity takeoffs for all construction materials and components.
Steel/Concrete/Frame Costing
Specialized costing for structural elements and building frameworks.
What Makes Us Different?
Trusted by Industry Leaders Across Australia
Our track record speaks for itself. With years of experience and thousands of successful projects, we’ve built a reputation for excellence.
Years of Industry Experience
Projects Completed
Happy Clients
Professional Estimators
Ready to Join Our Success Stories?
Get your project estimated by Australia’s most trusted cost estimation experts.
Start Your ProjectDownload Real Project Samples
See the quality and detail of our work with these real project examples from across Australia.

Residential House Estimate
Specialised acrylic rendering works for a residential property, delivering a smooth, durable, and weather-resistant finish to exterior walls.

Commercial Building Project
Architectural plans for a 9-story commercial building with detailed reflected ceiling plans and finishing specifications.

Cost Construction Setup
Architectural and structural plans for a multi-level industrial development, including floor layouts, slab plans, reflected ceiling plans, and elevations.
Need a Custom Estimate?
These samples show our attention to detail. Get your own comprehensive estimate tailored to your specific project requirements.
What’s Included in Your Estimate Report?
Every estimate comes with a comprehensive report designed to give you complete visibility into your project costs and requirements.
Itemized BOQ
Detailed bill of quantities with complete material breakdown and specifications.
Labour & Material Costs
Comprehensive cost analysis including current market rates and labor calculations.
Project Summary
Executive summary with key metrics, timelines, and budget breakdowns.
Markups & Analysis
Profit margins, contingencies, and detailed financial analysis for informed decisions.
Sample Report Preview
Professional format with all essential details
Frequently Asked Questions
Find quick answers to common questions about our cost estimation services and processes.
Still have questions?
Our expert team is here to help you with any specific questions about your project.
Trusted by Builders & Developers Australia-Wide
Don’t just take our word for it. Here’s what industry professionals say about our cost estimation services.
“Thanks to SJ Estimating House, we can plan projects with confidence, their estimates are spot on and always on time.”
