Licensed Builders in Western Australia
Western Australia Builder Statistics
Breakdown by Licence Class
- Building Contractor - Current 1,000
Top 1 Cities by Builder Count
These cities have the highest concentration of DMIRS-licensed builders. Click any city to view the full directory of builders by suburb.
| # | City | Licensed Builders | Share |
|---|---|---|---|
| 1 | Perth | 2,012 | 9.8% |
Western Australia Builder Licensing Overview
DMIRS Regulatory Overview
Department of Mines, Industry Regulation and Safety is Western Australia's principal regulator for the building and construction industry, responsible for licensing all builders who perform regulated work in the state. The DMIRS issues and renews licences, sets minimum requirements for licensees, investigates complaints, and takes disciplinary action against non-compliant operators.
As of February 2026, Department of Mines, Industry Regulation and Safety oversees 20,449 licensed builders across Western Australia, covering 1 licence class. This represents one of the most comprehensive licensing regimes in Australia, designed to protect consumers and maintain industry standards.
Always check a builder's licence class before signing a contract. Different licence classes authorise different types and scales of work. You can verify both their licence class and status on TradieVerify or the DMIRS website.
How to Verify a Builder in Western Australia
Verifying a builder's licence in Western Australia is straightforward and should be done before engaging any tradesperson for work. You can use TradieVerify's free search tool to instantly look up any Western Australia builder by name, licence number, or business name. Alternatively, you can search directly through Department of Mines, Industry Regulation and Safety at https://www.demirs.wa.gov.au.
When verifying, confirm: (1) the licence is current and active, (2) the licence class covers the type of work you need, (3) there are no conditions or restrictions on their licence, and (4) there is no disciplinary history. A legitimate builder will have no hesitation providing their licence number for verification.
Performing unlicensed builder work in Western Australia carries significant fines. Homeowners who engage unlicensed builders lose access to statutory consumer protections and may face voided insurance, failed inspections, and other consequences.
Related Directories
Other Trades in Western Australia
Builders in Other States
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Frequently Asked Questions
How many licensed builders are there in Western Australia?
As of February 2026, there are 20,449 licensed builders registered with Department of Mines, Industry Regulation and Safety in Western Australia. This includes all licence classes: Building Contractor - Current.
What is DMIRS and how does it regulate builders in Western Australia?
Department of Mines, Industry Regulation and Safety is the regulatory body responsible for licensing and overseeing builders in Western Australia. It issues licences, investigates complaints, enforces building standards, and can suspend or cancel licences for non-compliance.
How do I verify a builder's licence in Western Australia?
You can verify any Western Australia builder's licence using TradieVerify's free search tool or directly through Department of Mines, Industry Regulation and Safety at https://www.demirs.wa.gov.au. Enter the builder's name or licence number to confirm their registration status, licence class, and any disciplinary history.
What happens if I hire an unlicensed builder in Western Australia?
Hiring an unlicensed builder in Western Australia means you lose access to statutory consumer protections. Unlicensed work may void your home insurance, fail inspections, and the unlicensed operator faces significant fines under Western Australia law. Always verify a builder's licence before engaging them.