Building Defects After Handover: Your Warranty Rights and How to Enforce Them

Twelve months after handover the waterproofing fails. The builder says the defects period ended at 13 weeks and it is your problem now. It is not. The statutory warranties run for years, and they are separate from the defects liability period in your contract. Here is what you are entitled to and how to enforce it.

Your warranty periods, state by state

• New South Wales – Home Building Act 1989, sections 18B to 18E. Six years for major defects (structural elements, waterproofing, fire safety, anything that makes the home uninhabitable) and two years for everything else, running from completion of the work. Plus six months extra if the defect appears in the last six months of the period.
• Victoria – Domestic Building Contracts Act 1995, section 8, with a ten-year limitation period under section 134 of the Building Act 1993 from the occupancy permit or final inspection. The warranties also run with the land, so subsequent owners can claim.
• Queensland – Statutory warranties in Schedule 1B of the QBCC Act 1991: six years and six months for structural defects and twelve months for non-structural defects, backed by the Queensland Home Warranty Scheme. Complaints to the QBCC must be lodged within strict windows of first noticing the defect, so do not delay.
• Western Australia – Complaints to Building and Energy within six years of completion under the Building Services (Complaint Resolution and Administration) Act 2011.
• South Australia – Building Work Contractors Act 1995: five-year statutory warranty from completion.

And in every state, the consumer guarantees in the Australian Consumer Law (services rendered with due care and skill, fit for purpose) apply on top.

Step 1: Report the defect in writing straight away

Email the builder the day you notice it. Describe the defect, attach photos, and ask them to inspect and rectify within 14 days. This does three things: it fixes the date you first noticed the defect (important for regulator time limits), it gives the builder the opportunity to rectify that tribunals expect, and it starts a paper trail.

Step 2: Get an expert to say what it is and what caused it

For anything involving water, structure, or fire, get a building inspector or engineer to write a report. Ask them to state whether the defect is a “major defect” under your state’s definition. This determines which warranty period applies and whether the home warranty insurer will get involved.

Step 3: Lodge with the regulator

NSW Fair Trading, the QBCC, the Building and Plumbing Commission’s dispute resolution service in Victoria and Building and Energy in Western Australia all run free dispute processes that can result in a rectification order. This costs you nothing. Lodge in parallel with your letter of demand, not instead of it.

Step 4: Send a letter of demand

Your letter should cite the exact warranty provision, describe each defect, attach the expert report, and demand rectification by a set date or payment of the quoted rectification cost. Give 14 days. State that you will file in the tribunal and claim the cost of the expert report as well.

When the builder pushes back

Some builders respond to a warranty claim with threats: “pay the final invoice or I will lodge a caveat”, “remove your Google review or I will sue for defamation”, repeated texts and calls, or turning up unannounced. None of that is acceptable and some of it is unlawful.

• A caveat lodged without a caveatable interest can be removed and the builder can be liable for damages.
• An honest review based on your experience is protected; threats to sue over it are usually bluff.
• Harassing contact can breach state harassment and stalking laws and, for a licensed builder, is a disciplinary matter.

The answer is a cease and desist letter that tells the builder to communicate only in writing, to stop the threats, and warns of a complaint to the regulator and police if it continues. Do not engage in a text war. Put it in a letter and move on.

Step 5: File if the deadline passes

Home building claims at NCAT, VCAT, QCAT or SAT are designed for self-represented owners. Bring the contract, photos, expert report, your correspondence and your quotes.

Do not let the clock run

The single biggest mistake owners make is waiting. A two-year warranty period in New South Wales is over before you know it, and Queensland’s notification windows are shorter still. Start today.

Get your letters drafted for $79 for both

Claim Done drafts your Letter of Demand for $49, citing the statutory warranty for your state and setting a firm deadline for rectification or payment. If the builder is threatening or harassing you, Claim Done drafts your Cease and Desist for $49 to shut that down in writing. Both are emailed to the builder.

Start my Letter of Demand – $49  |  Start my Cease and Desist – $49