A contract serves as a clear roadmap for both you and your client, outlining the scope of work, timelines, payment schedules, and responsibilities. Without it, misunderstandings can and will arise, setting off a chain reaction that can lead to formal disputes, legal action, and reputational and financial losses.
Legal obligations
Under the Queensland Building and Construction Commission Act 1991, contractors must use a written contract for regulated building work over $3,300.
Benefits of written contracts
A written contract sets everything out clearly—from the scope of work and materials to timelines, payments, and how to handle changes. It ensures everyone is on the same page from the start and helps avoid confusion—giving you something solid to point back to if things don’t go to plan, like a dispute or if you're not paid.
Choosing the right contract – we’ve got your back
The QBCC offers a range of free contract templates tailored to different types of building work such as:
- domestic building contracts—suitable for residential projects, including new homes, renovations, and extensions
- commercial subcontracts—designed for commercial building work, outlining specific obligations and requirements.
You can also use contracts developed by major industry associations or create your own – but just make sure you’ve covered off on all the essentials.
Handling variations
Changes to the original contract, known as variations, are common in building projects. The QBCC Act requires that any variation is documented in writing and agreed by both parties before the work commences – that means, the home owner needs to respond to you in writing. This process helps manage expectations and reduce the likelihood of disagreements over additional costs or changes in scope.
Industry-proof safeguards for you and your client
Incorporating written contracts into your business isn’t just about ticking a box—it shows you’re professional and serious about doing things right. It helps build trust with the home owner from the start, sets a clear framework for how the job will run, and can be a lifesaver if there’s ever a dispute.
For more information and access our contract templates, visit the QBCC's contracts webpage.
Tip of the trade: It’s crucial to ensure that any contract you use complies with Queensland legislation. Seeking legal advice before finalising a contract is strongly recommended.