Who is responsible if a builder or subcontractor completes defective work?

Start by identifying who contracted for the defective work. A head builder's obligations to you are not automatically removed because a subcontractor performed it. An owner-builder should check both their own responsibilities and the obligations of each contractor. Contract terms and statutory rights can both matter. Record the defect, notify the relevant party and seek an independent assessment or legal advice where needed. Check complaint, insurance and claim deadlines promptly.

Official sources:

• NSW Contracts for residential building work
• Victoria Domestic Building Contracts Act current version
• ACCC Consumer rights and guarantees

General information only. Requirements vary by state or territory and change over time, so check the current rules for your location.