Quantity Surveyor Perth
Cost Control From Feasibility to Final Account
Built For DevelopersOwnersArchitectsContract Administrators

Quantity Surveyor Perth — Independent Cost Management for Your Build
An estimate tells you what a project should cost on day one. A quantity surveyor in Perth makes sure it still costs that on the day you settle the final account.
Matrix Estimating provides independent quantity surveying across Perth, the Peel region and the South West — cost plans at feasibility stage, bills of quantities for tender, progress claim assessment during construction, and variation review when the scope moves. We work for the party paying the bills, not the party issuing them.
Our Quantity Surveying Services in Perth
We can pick up a project at any stage, or run cost management end to end.
-
Feasibility & Cost Planning
Before you commit, we test whether the numbers work. Elemental cost plans built from real Perth rates tell you what the scheme costs and where the money goes, so you can adjust the design while changes are still cheap.
-
Bills of Quantities & Tender Documentation
A measured BOQ puts every tenderer on the same scope, so the prices you get back are genuinely comparable. It removes the guesswork from bid analysis and takes the scope-gap arguments out of the job before they start.
-
Tender Review & Contractor Selection
We assess submitted bids line by line against the documentation, flag underpriced items that will come back as variations, and give you a written recommendation you can put in front of a board or a lender.
-
Progress Claim Assessment
We check what the contractor has actually built against what they have invoiced, and certify the amount properly payable. You pay for completed work, not for optimism.
-
Variation & Change Assessment
When scope moves — and it will — we price the change independently and confirm whether the claim is valid and the rate is fair before it lands in your budget.
-
Cost Reporting Through Construction
Regular cost reports showing committed spend, forecast final cost and remaining contingency, so a problem shows up in a report months before it shows up in your bank account.
-
Final Account Settlement
We reconcile the whole job at completion — contract sum, variations, provisional sums, prime cost items — and negotiate the closing position so the project ends cleanly.
Do I Need a Construction Estimator or a Quantity Surveyor?
They overlap, but they answer different questions. Most Perth clients need one clearly more than the other.
“What will this cost to build?”
- One-off pricing before you start
- Quantity take-offs from your drawings
- Fast turnaround for tender or finance
- Best for builders, tradies, renovators and owner-builders
“How do I control cost across the whole job?”
- Ongoing role from feasibility to final account
- Cost plans, BOQs, progress claims, variations
- Independent certification you can give a lender or board
- Best for developers, owners, architects and contract administrators
Not sure which fits? Send us the drawings and we’ll tell you straight.
Quantity Surveying Built on WA Rates and WA Contract Conditions
Perth costs behave differently to the east coast, and pretending otherwise is how budgets fail. The resources sector competes directly with construction for the same trades and plant operators, so labour rates here move with the mining cycle rather than with a national index. Materials carry east-coast freight or import lead times that don’t apply in Sydney or Melbourne. And a project in Bunbury or Busselton prices differently again once you factor in travel, accommodation and the thinner local subcontractor pool.
There’s a procedural layer too. Progress payments in WA operate under the Building and Construction Industry (Security of Payment) Act, which sets strict timeframes for payment claims and responses. Missing a deadline can cost you the right to dispute an amount. We assess claims against the contract and the programme so you respond on time and on solid ground.
We cost apartment developments, commercial builds, fit-outs and detached housing using current WA rates, not national averages. That’s the difference between a cost plan that survives contact with the market and one that doesn’t.
Independent numbers. WA rates. No surprises at final account.
Contact Us Today
Whether you’re testing a site’s feasibility, about to go to tender, or halfway through a build and losing sight of where the money is going, we can help. Send us what you have and we’ll tell you what’s worth doing.
- Instant support
- +61 415 798 401 — 8:00am–5:30pm, 7 days
- Email efficiency
- info@matrixestimating.com.au — send plans, response within 24 hours
- We work on
- Apartment developments · Commercial · Fit-outs · Detached housing · Regional projects

Looking for a Construction Estimate Instead?
If you only need to know what a Perth project will cost to build — no ongoing cost management — our estimating service is the faster, cheaper option.
Construction Estimator PerthCost management built around your role
Recently Completed Projects
To learn more about each project in our gallery, simply click the "i" icon located under the project image. This will provide you with detailed information and insights about the project.
Why Choose Us?

Measured Properly
At Matrix Estimating, we use leading estimating software to deliver exceptional accuracy and detail in every cost plan and bill of quantities. We take great pride in our advanced 3D quantity take-offs — an intuitive alternative to traditional 2D methods that provides a clearer picture of your project's scope. Every measured item can be traced back to the drawings, so you can check what has been measured, where it occurs and exactly what is included. That traceability is what makes a progress claim or a variation defensible when someone questions it.

Experience
At Matrix Estimating, we leverage our 20 years of local experience in the construction industry to deliver the most precise cost advice possible. Our deep understanding of the WA market means our cost plans reflect what trades are actually charging in Perth right now — not a national average. Experience the confidence of partnering with an independent quantity surveying team that understands your industry and is dedicated to helping you achieve your goals.
Our Reviews
Get in touch
Send us your Perth project — we’ll tell you what it needs.
Feasibility, tender, mid-build or final account — send us what you have and you’ll get a scoped fee proposal within 1 business day, with no obligation to proceed.
Request a quote
Replies in 1 business dayTakes about a minute. We’ll come back with scope, fee and turnaround.
No obligation. Your plans stay confidential and your details are never shared or sold.
- Monday – Friday
- 8:00am – 5:30pm
- Saturday – Sunday
- 8:00am – 5:30pm
- Response time
- Within 24 hrs
Areas we cover Perth metro, Peel & the South West
Subiaco · Leederville · North Fremantle · Scarborough · Joondalup · Butler · Ellenbrook · Midland · Canning Vale · Cockburn Central · Rockingham · Baldivis
Peel & South WestMandurah · Halls Head · Lakelands · Bunbury · Busselton







