Hiring a builder is a big decision, and one of the first things you should check is whether they hold the right licence for the work you want done. In Australia, building licensing is handled at state and territory level, so the exact register and licence type will vary depending on where you live. The good news is that checking is straightforward once you know where to look.
Before you sign anything, take the time to verify the builder’s licence, ask about insurance, and confirm they are allowed to do the type of work you need. That simple due diligence can help you avoid unsafe work, disputes, and costly rework later on.
Why A Builder’s Licence Matters
A licensed builder has met the training, experience, and regulatory requirements set by the relevant state or territory building authority. In many cases, building work above a certain scope or value must be carried out by, or under the supervision of, a licensed professional. A licence also shows the builder is accountable to a regulator if something goes wrong.
It is especially important to remember that some trades are legally restricted in Australia. Electrical work must be done by a licensed electrician. Gasfitting must be done by a licensed gasfitter. Many plumbing tasks are also restricted to licensed plumbers. If a builder says they can “take care of it all”, make sure any specialist work is still done by the right licensed person.
A good builder should be happy to provide licence details, evidence of insurance, and the name of the company or individual who will actually manage the job.
How To Check A Builder’s Licence
The most reliable way to check is through your state or territory building regulator, Fair Trading body, or licensing authority. These official registers let you search by the builder’s name, business name, or licence number. If the licence number is not provided upfront, ask for it before going any further.
When checking the register, look for:
- the exact name on the licence
- the licence class or category
- whether the licence is current
- whether there are conditions, restrictions, suspensions, or cancellations
- the type of work the licence allows the builder to do
If the builder is part of a company, confirm whether the company itself is licensed, or whether the licence sits with an individual who will oversee the work. The person quoting may not always be the licensed person who legally takes responsibility for the job.
You should also ask for proof of home building insurance where required in your state or territory, as well as public liability insurance. Insurance is not the same as a licence, but both matter.
Useful Questions To Ask A Builder
- What is your licence number and class?
- Which projects are you licensed to complete?
- Will you personally supervise the work?
- Are your subcontractors licensed for their trades?
- What insurance do you hold?
- Can you provide recent local references?
What To Watch Out For
Be cautious if a builder avoids giving licence details, pressures you to pay a deposit quickly, or says licensing is “not needed” for the work. That can be a red flag. So can vague business names, mismatched contact details, or a quote that seems unusually cheap compared with similar builders.
Another warning sign is when the person quoting cannot clearly explain how they will meet the National Construction Code and Australian Standards relevant to the job. A professional builder should be comfortable discussing compliance, materials, and the process they will follow.
If you are comparing builders, it can help to use the same checklist for each one so you are not comparing apples with oranges.
| Check | What Good Looks Like | Why It Matters |
|---|---|---|
| Licence status | Current and listed on the official register | Confirms they are authorised to do the work |
| Licence type | Matches the job you need done | Not all builders can legally do all work |
| Insurance | Current and relevant to the project | Helps protect you if something goes wrong |
| Supervision | Clear who is responsible on site | Shows accountability and oversight |
| Specialist trades | Licensed electrician, plumber or gasfitter where needed | Ensures legally restricted work is done properly |
What To Do If You Suspect A Problem
If a builder’s licence cannot be verified, do not proceed until you have cleared it up with the relevant regulator. If the licence is suspended, expired, or does not cover the work, walk away and look for another builder. If work has already started and you become concerned, stop and seek advice from the state or territory licensing body or Fair Trading office.
Keep copies of the quote, contract, emails, licence details, insurance documents, and any photos of the site or work. Good records can be helpful if there is a dispute later.
Also remember that some jobs may need more than one licensed person. For example, a bathroom renovation might involve a builder, plumber, electrician, waterproofing specialist, and tiler. Each trade should be appropriately qualified for the work they perform.
Final Tips For Homeowners
Always check a builder before you sign a contract, not after the job has started. Make sure the licence matches the work, the insurance is current, and any specialist trades are properly licensed. If you are choosing materials, reputable products from Australian suppliers such as Bunnings, Mitre 10, Dulux, Taubmans, British Paints, Gyprock, James Hardie, or Colorbond by BlueScope can support a quality result, but they do not replace the need for a properly licensed builder.
If you are unsure about a builder’s licence, contact your state or territory building regulator, Fair Trading body, or licensing authority for guidance. And if you want to compare options across the Tasman, you can also browse Trade Directory NZ.
Ready to get started? Find trusted local builders on Aussie Trade Directory and compare qualified professionals in your area.