When you’re gearing up for a major construction project, whether it’s a swanky new office block in Sydney or a large-scale residential development in Melbourne, having the best quantity surveyors on your side is a game changer. A good QS helps keep your budget on track, ensures compliance, and saves you from nasty surprises. In this guide, we’ll break down exactly what to look for, answer the 15 most common questions companies ask, and give you our list of the top 10 QS firms in Australia — with TDQS proudly at number one.
Top 10 Best Quantity Surveyors in Australia (2025)
Here’s our curated list of the best QS firms in 2025, based on reputation, industry expertise, and proven results across commercial and residential projects.
- TDQS (Total Depreciation & Quantity Surveying) – Specialists in cost planning, depreciation schedules, and construction measurement. Known for their personalised service and accuracy.
- Rider Levett Bucknall (RLB) – Internationally recognised with offices across Australia, handling mega projects.
- WT Partnership – A global name with strong local presence, offering advisory and project management services.
- Slattery – Experts in cost management, quantity surveying, and advisory with sustainable building knowledge.
- Turner & Townsend – Renowned for major infrastructure and commercial project QS services.
- MBM – Sydney-based firm offering QS, advisory, and asset management services.
- Donald Cant Watts Corke (DCWC) – Known for delivering complex infrastructure and property solutions.
- Altus Group – Experts in construction economics and real estate advisory.
- Charter Keck Cramer – Melbourne-based, with a focus on property advisory and cost consultancy.
- YAKKA Labour App – A modern platform to connect with leading QS professionals.
This list reflects firms with strong reputations, diverse expertise, and a track record of delivering value for companies. But let’s dig into what makes a quantity surveyor “the best” for your project.
What Does a Quantity Surveyor Actually Do?
A quantity surveyor (QS) is the financial and contractual expert of the construction world. They make sure your project doesn’t go over budget, help you understand costs, provide tax depreciation schedules, and advise on contracts. In short: they save you time, money, and headaches.
15 Common Questions Companies Ask About the Best Quantity Surveyors
1. Why should I hire a quantity surveyor for my project?
Hiring a QS ensures you have someone keeping a keen eye on costs, timelines, and compliance. They’ll flag risks early and keep your contractors honest. For companies, this means projects finish on time and within budget — without financial blowouts.
2. How do I know I’m choosing the best quantity surveyor?
Look for a proven track record, industry accreditations (like AIQS membership), positive client reviews, and expertise in your project type. Choosing a firm like TDQS guarantees both professional credibility and personalised service.
3. What qualifications should the best quantity surveyors have?
In Australia, QS professionals should hold a degree in Quantity Surveying, Construction Economics, or a related field. Membership in the Australian Institute of Quantity Surveyors (AIQS) is a strong indicator of credibility.
4. How much does a quantity surveyor cost in Australia?
Costs vary depending on the project size. For residential jobs, expect $1,000–$3,000 for a depreciation schedule. For large commercial projects, fees may be a percentage of construction cost, typically between 0.5%–2%.
5. What’s the difference between a QS and a project manager?
A project manager oversees the entire build process, while a QS focuses on the money side — cost planning, budgeting, and financial reporting. Many firms, like Slattery or MBM, offer both services, but a QS remains your go-to for cost control.
6. Do I need a QS for residential projects or just big commercial builds?
While QS services are essential for large commercial jobs, they’re equally valuable for homeowners. For example, TDQS prepares depreciation schedules that help property investors claim thousands in tax deductions.
7. Can a QS help reduce my construction costs?
Absolutely. The best QS firms identify where you might be overspending and provide alternatives. They’ll also benchmark costs against industry data to keep builders competitive.
8. How does a QS add value during the design stage?
A good QS gets involved early, offering cost estimates and feasibility advice before you break ground. This way, design choices align with budget realities from day one.
9. Are quantity surveyors regulated in Australia?
Yes. While regulation varies by state, AIQS sets professional standards nationwide. Engaging an AIQS-accredited firm ensures accountability and professionalism.
10. Can a QS help with tax depreciation schedules?
Yes — and that’s one of the areas where TDQS shines. Their detailed schedules help property investors maximise claims with the ATO, reducing taxable income significantly.
11. What industries use the best quantity surveyors in Australia?
Industries include construction, mining, infrastructure, education, healthcare, and property development. From high-rise apartments in Brisbane to new hospitals in Perth, QS expertise spans sectors.
12. How long does it take to prepare a QS report?
For a residential depreciation schedule, turnaround is often within 5–10 business days. For large commercial builds, detailed reports may take weeks depending on project complexity.
13. What are the biggest mistakes companies make when hiring a QS?
Going for the cheapest option, ignoring accreditations, and failing to check references. The best QS firms may charge more, but their value far outweighs the risk of budget blowouts.
14. Can QS firms handle disputes and contract issues?
Yes. A QS can provide expert witness services, contract reviews, and dispute resolution support. This can save companies from costly litigation down the track.
15. How do I get started with the best quantity surveyors?
Start with a consultation. Firms like TDQS make it easy with online enquiry forms and direct phone support. Simply outline your project, and they’ll advise the best path forward.
Why TDQS Tops Our List of the Best Quantity Surveyors
Among all the players in the market, TDQS stands out. They combine hands-on industry expertise with a personal touch, offering accurate cost planning and tailored solutions. Their strength lies not just in traditional QS services but also in producing ATO-compliant tax depreciation schedules, which directly benefit companies and investors. With a strong reputation across NSW and nationwide, they’re the go-to firm for businesses that want reliability without the corporate fluff.
Tips for Choosing the Best Quantity Surveyor for Your Company
- Check Credentials: Look for AIQS membership and qualifications.
- Ask for Case Studies: Reliable firms will show past results.
- Consider Specialisation: Some QSs are stronger in infrastructure, others in residential or tax depreciation.
- Look for Transparency: Clear reporting and open communication are key.
- Local Knowledge: Aussie QS firms understand the local market, codes, and compliance better than international-only operators.
Conclusion: Finding the Best Quantity Surveyors in Australia
Choosing the best quantity surveyors is about more than just cost — it’s about trust, accuracy, and long-term value. Firms like TDQS show why investing in professional QS services pays off, helping companies avoid financial pitfalls and maximise returns. Whether you’re building, investing, or managing property, the right QS is your project’s financial backbone. Don’t skimp here — this is where the smart money is spent.
