ConstructTrackPro › DefectClock

Free Tool · All Australian States · Residential Builds

Is your builder still
liable for defects?

Australian law gives you up to 10 years to claim on building defects — but most homeowners don't know their expiry date. Enter your completion date and find out instantly.

Calculate Your Warranty → NSW · VIC · QLD · WA · SA · ACT · TAS · NT
10 yr VIC major defects
6 yr NSW / WA / ACT / TAS / NT
6.5 yr QLD structural (QBCC)
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Statutory Warranty Calculator

Enter your state, the date your builder handed over your home, and the type of defect. Instantly see your warranty expiry date, days remaining, and the exact steps to make a claim — with links to your state authority.

Free All 8 States Major & Minor Defects Shareable Results

How building warranties work in Australia

When you hire a licensed builder to construct or renovate a residential home in Australia, state law automatically gives you statutory warranty rights — regardless of what your contract says. These cannot be waived or contracted out of.

What the warranty covers: All residential building work by a licensed contractor is covered. The warranty runs from the date of practical completion — when the builder hands over the property, not when you moved in, and not when the defect appeared.

Two types of defect: Most states distinguish between major defects (structural failures, waterproofing failures, fire safety defects, or anything making the building uninhabitable) which carry a longer warranty, and non-major defects (cosmetic issues, minor plumbing, paint defects) which carry a shorter period.

What you must do: You must notify the builder in writing within the warranty period — the warranty does not automatically trigger a repair obligation. The builder must be given the opportunity to rectify before you escalate to your state authority or tribunal.

Important: This tool is for residential construction only. Commercial building defects are handled under contract law and do not carry the same statutory warranty protections.

Warranty periods by state

Statutory warranty periods set by legislation in each Australian state and territory. Victoria has the longest major defect period in the country at 10 years — commonly misquoted as 6 years.

State Major Defects Non-Major Defects Legislation State Authority
New South Wales 6 years 2 years Home Building Act 1989, s18E NSW Fair Trading / NCAT
Victoria 10 yr 10 years 2 years DBCA 1995, s134 VBA / VCAT
Queensland QBCC system 6 yrs 6 mths Contract DLP QBCC Act 1991 QBCC / QCAT
South Australia 5 years 12 months BWCA 1995, s32 CBS SA / SACAT
Western Australia single period 6 years 6 years BSL Act 2011, s5 Building and Energy / SAT
ACT 6 years 2 years Building Act 2004, s88 Access Canberra / ACAT
Tasmania 6 years 2 years Building Act 2016 CBOS Tasmania
Northern Territory 6 years 2 years Building Act 1993 NT Building Advisory / NTCAT

All periods run from date of practical completion. Verify current legislation before relying on these figures — legislation is subject to amendment. This table is general information only, not legal advice.

Major vs non-major defects

The distinction matters — major defects carry a much longer warranty period in most states.

While exact definitions vary by state, major defects typically include:

  • Structural elements — foundation failures or movement, cracks in load-bearing walls, beam or column failures, floor structural failures
  • Waterproofing systems — shower and bathroom leaks, roof waterproofing failures, balcony membrane failures, basement moisture ingress, window/door water penetration
  • Fire safety systems — non-compliant fire doors, missing or inadequate fire separation between dwellings, defective sprinkler or detection systems in multi-residential buildings
  • Essential services — major plumbing failures (not drips), electrical system defects, HVAC systems integral to habitability
  • Habitability — any defect that makes the building unsafe, unhealthy, or unfit for occupation

If your defect involves any structural element, any water entering the building, or makes the home unsafe to live in — it is very likely a major defect. Always get an independent building inspection report to confirm classification.

Non-major defects are typically cosmetic or functional issues that do not affect the structural integrity or habitability of the building. Common examples include:

  • Cracked or chipped tiles (not structural movement)
  • Paint defects — blistering, peeling, or uneven coverage
  • Gaps in cornices, skirting boards, or architraves
  • Poorly fitted or sticking doors and windows (unless water ingress is involved)
  • Minor plumbing issues — dripping taps, slow drainage
  • Cosmetic finish defects — scratches, uneven surfaces, colour variations
  • Minor joinery defects — cupboard doors, drawer alignment

Non-major defects still give you warranty rights — just with a shorter claim window (typically 2 years in most states, 12 months in SA, or the same 6 years in WA).

The process is broadly the same in every state:

  • Step 1 — Written notice: Send the builder a formal written notice (email with read receipt or registered post) describing the defect clearly. Keep a copy.
  • Step 2 — Building inspection: Get an independent building inspector to document the defect in a written report. This is critical evidence for any dispute.
  • Step 3 — State authority: If the builder does not respond or refuses to rectify, lodge a complaint with your state authority (NSW Fair Trading, VBA, QBCC, etc.). They can investigate and may compel the builder to act.
  • Step 4 — Tribunal: If mediation fails, apply to your state tribunal (NCAT, VCAT, QCAT, etc.) for a formal hearing. At this stage, legal representation is strongly recommended.

If your builder has gone into liquidation, the Home Warranty Insurance (or QBCC Home Warranty Scheme in QLD) may cover you — check with your state authority.

No. Statutory warranty rights only apply to work carried out by a licensed building contractor. If you used an unlicensed contractor, or performed work yourself (owner-builder), the statutory warranty protections do not apply in the same way.

Owner-builders have separate obligations when selling: in most states you must disclose and provide a defect inspection report if the home is sold within a certain period of the work being completed.

Frequently Asked Questions

The statutory warranty period begins from the date of practical completion — typically the date the builder issues a handover notice and the occupation certificate is issued. It does not start from when you moved in, and it does not reset if you sell the property. Use the completion date on your occupation certificate as your start date.
Possibly not. For structural/major defects, most states give you 6 years from completion (10 years in VIC). If your home was completed in 2021, you may still have 2+ years of warranty remaining in NSW, and 6+ years in VIC. Use the calculator to find out exactly. Time is critical — act as soon as you discover a defect, and notify the builder in writing immediately.
Yes, in most states the statutory warranty runs with the property and transfers to subsequent owners. If a house was built in 2021 and you bought it in 2023, you inherit the remaining warranty period. Check with your state authority or a building lawyer to confirm for your specific state and situation.
Potentially yes. Most states require builders to hold Home Warranty Insurance (also called Home Building Compensation Insurance or Builders Warranty Insurance). In QLD the QBCC's Home Warranty Scheme provides cover. If your builder is insolvent, deceased, or has disappeared, you may be able to claim directly against the insurer or the scheme. Contact your state authority immediately — do not wait.
No. Your contract may include a builder's warranty (often shorter, e.g. a 12-month defects liability period). The statutory warranty is set by law and cannot be reduced by contract — it always applies on top of any contractual warranty. Even if your contract says "6-month warranty", the law gives you additional protection for years beyond that.
The statutory warranty applies to all residential building work performed by a licensed contractor — including extensions, renovations, and alterations above a minimum contract value (varies by state, typically $5,000–$20,000). The warranty covers only the work done under that contract, not pre-existing parts of the property that weren't touched.
Yes, in most states the statutory warranty applies to residential multi-unit developments — apartments, units, and townhouses — covering both common property and lot-specific defects. In NSW, the Strata Schemes Management Act 2015 sets out additional protections for apartment buildings, including a 2-year initial and 6-year extended defect inspection regime. For strata buildings, consult your owners corporation and a strata lawyer.

Defect discovered? Get specialist advice early.

If your warranty period is running out, or your builder has refused to rectify a major defect, act quickly. A specialist building dispute lawyer can advise on your rights, draft a formal notice of claim, and represent you at tribunal — often preventing disputes from escalating into expensive litigation.

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