Home warranty insurance is the safety net that sits underneath a residential building contract in Australia. It is the cover that responds when a builder cannot finish the job or cannot come back to fix defective work, because the business has collapsed, the builder has died or disappeared, or their licence has been cancelled in circumstances the scheme recognises.
It is also one of the most misunderstood parts of a build. Homeowners routinely assume the policy is broad consumer protection that will pay out whenever something goes wrong. It is not. Every scheme in the country has a value threshold, a capped payout, tight time limits and defined claim triggers, and most are last-resort products. Understanding those limits before you sign is what turns the policy from a piece of paperwork into genuine protection.
This guide explains what home warranty insurance actually is, what it covers and excludes, how the schemes differ across each state and territory, what it costs, how to confirm cover exists before you pay a deposit and how a claim works if you ever need one. For the broader residential construction context, refer to the BUILTLY complete guide to building a house in Australia.
What home warranty insurance is
Home warranty insurance is a statutory insurance product that most Australian states and territories require a licensed builder to take out, in the homeowner's name, before residential building work above a set contract value begins. The homeowner is the beneficiary of the policy even though the builder arranges it and pays the premium, and even though the premium is ultimately recovered through the contract price.
Scheme names and rules differ by jurisdiction, as set out in the state-by-state section below. Confirm the scheme that applies to your contract rather than relying on the generic insurance label.
That logic is straightforward. While the builder is trading, the builder is responsible for the work. Your rights sit in the contract and in the statutory warranties that state legislation implies into every residential building contract. For a full explanation of those entitlements, refer to the BUILTLY guide on builder warranties in Australia. Many schemes step in only when the builder can no longer meet those obligations. See the Victoria entry below for the distinction between Home Warranty and legacy DBI.
That is why most schemes are described as last-resort cover. Victoria’s Home Warranty for eligible new contracts from 1 July 2026 is a first-resort style scheme with its own eligibility rules. Check the scheme that applies to your contract.
Home warranty insurance vs domestic building insurance
These two terms are used interchangeably in conversation, and that is where a lot of confusion starts. They describe statutory cover, usually operating as last-resort insurance, but the wording matters because the scheme rules, the provider and the claim triggers are set by the state you are building in, not by the label.
Home warranty insurance
This is the generic national term for statutory residential builder cover. Used loosely, it covers every state scheme regardless of its legal name, and it is the phrase most homeowners and brokers use. It is also the phrase used in Queensland, where the Queensland Home Warranty Scheme carries the name directly.
Domestic Building Insurance
Domestic Building Insurance is the legacy Victorian scheme and continues for those policies. See the Victoria entry below for the transition to BPC Home Warranty and the paperwork to request.
Neither is the builder's own business insurance
Both terms are separate again from the commercial policies a builder carries to run the business, such as public liability, contract works and workers compensation. Those protect the builder and third parties during construction, not you after a collapse. For how those layers fit together, refer to the BUILTLY guide on construction insurance in Australia.
The practical takeaway is to confirm the scheme name that applies in your state before you request paperwork, then record the certificate against the project under that name so the evidence trail matches the scheme that would assess any future claim.
What it covers and what it does not
Across the schemes, cover generally falls into three categories. Non-completion cover applies where the builder fails to start or fails to finish the contracted work, and typically funds the reasonable cost of completing it, less what you still owed under the contract. Defect cover applies where completed work is defective and the builder cannot rectify it, and generally distinguishes between structural or major defects and non-structural defects, with a longer period attaching to the former. Loss of deposit cover applies where a deposit has been paid and the work never commences.
What sits outside cover matters just as much. The following are commonly excluded across the schemes, though the precise wording varies by jurisdiction.
Commonly excluded
- Normal wear and tear, and damage caused by a failure to maintain the property
- Defects in work you contracted directly with a trade outside the head contract
- Work below the value threshold that triggers the scheme in your state
- Claims made after the relevant time limit has expired, regardless of merit
- Consequential losses such as alternative accommodation or lost rent, in most jurisdictions
- Any amount above the scheme's maximum payout per dwelling
- Defects the builder is still willing and able to rectify, because the builder remains the correct party
- Work performed by an owner-builder on their own property
The maximum payout is a critical and frequently overlooked limit. Every scheme caps the amount recoverable per dwelling, and on a higher-value contract that cap can sit well below the cost of completing or rectifying the work. Where a build is substantially above the cap, the insurance is a partial recovery mechanism rather than a full one, and the practical protection comes from choosing a financially sound builder in the first place.
When you can actually claim
A claim must satisfy the applicable scheme’s eligibility rules and claim triggers. See the Victoria entry below for the distinction between Home Warranty and legacy DBI. In many other schemes the trigger events are some combination of the following.
Insolvency
The builder has entered liquidation, voluntary administration, receivership or bankruptcy. This is by far the most common trigger and the reason the schemes exist. You will usually need documentary evidence of the appointment of an external administrator before the insurer will progress the claim.
Death
The individual licence holder has died and the business cannot complete the contracted work. In a sole-trader or small partnership structure this can bring a build to a halt immediately.
Disappearance
The builder cannot be located after reasonable attempts. Insurers apply a genuine test here, so keep a record of every attempt to make contact, including dates, phone numbers, email addresses and any returned correspondence.
Licence cancellation
In some jurisdictions, cancellation of the builder's licence in defined circumstances is itself a trigger. In others it is not, which is one of the more significant differences between the schemes. If you suspect a licensing problem, verify the status directly through the state regulator rather than relying on the builder's account of it.
Failure to comply with a tribunal order
Victorian cover can respond to a builder's failure to comply with a tribunal order or court order, and BPC Home Warranty may also assist in other eligible circumstances. Check the applicable scheme and policy before relying on any trigger.
For last-resort policies, if none of the applicable trigger events occurs, the insurer will decline the claim and direct you back to the builder. That is the correct outcome, and the appropriate path is the standard defects process, then the state regulator and, where necessary, the tribunal. The BUILTLY guide on how to handle building disputes in Australia sets out that escalation sequence.
State-by-state schemes
Home warranty insurance is state legislation, so the scheme name, the contract value that triggers it, the administrator and the cover periods all differ. The thresholds below are indicative and are periodically amended. Always confirm the current figure with the administrator or regulator in your state before relying on it.
Queensland
The Queensland Building and Construction Commission administers the home warranty scheme directly rather than through private insurers. Cover is triggered at a comparatively low contract value, which brings a large volume of smaller residential work inside the scheme. The QBCC also maintains the public licence register, so the builder's licence status, insurance history and any disciplinary action can be checked in the same place. See the BUILTLY guide on the QBCC licence check in Queensland.
New South Wales
Home Building Compensation cover is required for residential building work over $20,000, overseen by SIRA and administered through icare’s Home Building Compensation Fund. Cover generally runs for six years for major defects and two years for other defects from completion, with shorter limits for non-completion. The certificate must be given to the homeowner before any money is demanded or received. Confirm current thresholds, cover limits and time limits at sira.nsw.gov.au.
Victoria
From 1 July 2026, Home Warranty administered by the Building and Plumbing Commission (BPC) applies to eligible new domestic building contracts signed on or after that date for work valued at more than $20,000. Existing Domestic Building Insurance (DBI) policies for earlier contracts continue under their original terms and do not transfer to Home Warranty. Home Warranty may assist where a builder is unable or unwilling to complete or fix eligible incomplete, defective or non-compliant work, subject to eligibility, limits and exclusions. Legacy DBI remains subject to its own claim triggers; the change of administrator does not change those policy terms.
Eligibility for the cover is tied to the builder's registration, so it is worth confirming the builder's current Victorian registration status before signing.
South Australia
Building Indemnity Insurance is required for domestic building work above a relatively low contract value and is provided by private insurers. The certificate must be provided to the homeowner before work starts, and the same last-resort triggers apply.
Western Australia
Home Indemnity Insurance is required for residential building work over $20,000 and is arranged by the builder through approved insurers before work commences. The scheme generally responds to non-completion and defects where the builder has died, disappeared or become insolvent. A builder who cannot obtain the required cover cannot lawfully take on work above the threshold, making the insurer’s willingness to issue the policy a useful financial signal. Confirm current thresholds, limits and approved insurers with Building and Energy.
Australian Capital Territory
In the ACT, residential building work above the defined threshold must be covered by authorised insurance or an approved fidelity fund, subject to conditions. Cover responds only where the applicable claim triggers and conditions are met, such as insolvency, death or disappearance; unwillingness to complete or rectify work alone is not a claim trigger. Access Canberra administers builder licensing and can confirm whether a builder is currently entitled to carry out the work. Confirm current eligibility thresholds and claim pathways at accesscanberra.act.gov.au.
Tasmania
Tasmania does not operate a conventional statutory home warranty insurance scheme. Homeowner protection rests on residential building contract and dispute-resolution legislation, the builder's own insurance arrangements and the contract itself. Practically, this shifts the burden onto pre-contract due diligence and onto contract terms that address non-completion and defect rectification directly.
Northern Territory
The Northern Territory operates a narrower residential building certification arrangement rather than a full last-resort insurance scheme. As in Tasmania, verification of the builder and careful contract drafting carry proportionally more weight because there is no broad insurer of last resort behind the work.
The practical consequence of this patchwork is that advice written for one state can be actively misleading in another. Thresholds, cover periods, payout caps and trigger events all move across borders, and so does the answer to the question of whether you are covered at all.
What it costs and who pays
The builder takes out the policy and pays the premium, but the cost is recovered through the contract price. On most residential contracts the premium sits within a fraction of one per cent to around one per cent of the contract value, which on a typical new-home build translates to a figure in the hundreds to low thousands of dollars. The exact premium depends on the state, the contract value, the type of dwelling and the builder's own risk profile with the insurer or scheme administrator.
That last factor is worth pausing on. Insurers and scheme administrators assess a builder's financial capacity before issuing cover, and they set eligibility limits on the total value of work a builder can hold at any one time. A builder who is close to their eligibility ceiling, who attracts an unusually high premium or who cannot obtain cover for your contract value is telling you something about their financial position that no marketing material will. That signal matters most to buyers building on a minimal deposit, where the cover caps and exclusions leave little margin, as covered in the BUILTLY guide on building on a 5% deposit.
Because you fund the premium, you are entitled to see what you paid for. The premium should appear transparently in the contract or in the schedule of costs rather than being folded silently into a lump-sum figure. If the contract is a cost-plus arrangement, confirm how the premium is treated before signing, because the contract is where these items should appear.
How to check cover before you sign
Confirming that cover exists is a short exercise that is skipped far too often, usually because the builder is trusted and the paperwork feels like a formality. It is the single highest-value administrative step available to a homeowner before money changes hands.
Ask for the certificate in writing
Request the certificate of insurance before you pay a deposit and before work starts. In most jurisdictions the builder is legally required to provide it at that point, so a request should not be contentious. Reluctance or delay is itself informative.
Check the details line by line
The certificate should name you as the beneficiary, name the builder and their licence number, identify the property address, state the contract value and carry a policy number and issue date. A certificate for a different address, a different entity or a lower contract value than your contract is not cover for your build.
Verify with the insurer, not the builder
Confirm the policy independently with the scheme administrator or insurer named on the certificate. Fabricated and expired certificates do circulate, and a document supplied by the party it protects you against is not independent verification.
Check the entity matches the contract
The licensed entity on the policy must be the same legal entity that signs your contract. A common failure is a policy issued to a related company or to the individual licence holder while the contract is signed by a differently named trading entity.
Confirm licence status separately
An in-force policy does not confirm a current licence, and a current licence does not confirm an in-force policy. Check both. The BUILTLY guide on how to check a builder's licence in Australia covers the register for each state.
Keep the certificate with the contract
Store the certificate alongside the executed contract, the licence check and the insurance confirmations. If you ever need it, you will need it quickly and under pressure, and it will need to be produced with supporting context rather than on its own.
For the wider set of insurance checks that sit around this one, including public liability and contract works cover, refer to the BUILTLY guide on how to check if a builder has insurance in Australia.
How to make a claim
A claim begins with evidence of the applicable eligibility requirements and, for last-resort cover, the trigger event. For an insolvency this is usually the notice appointing a liquidator or administrator. For a disappearance it is the record of attempted contact. For a tribunal-order trigger it is the order itself and evidence of non-compliance. Without that evidence, the claim does not start.
You then lodge the claim with the scheme administrator or insurer within the applicable time limit, and this is where claims most often fail. The limits are strict, they differ between defect and non-completion claims, and they run from a defined date that is not always the date you discovered the problem. Diarise the relevant dates at the time of completion rather than trying to reconstruct them later.
The insurer will require the contract, the certificate of insurance, the payment history showing what you have paid and what remained owing, evidence of the work completed to date and evidence of the defects or incomplete items claimed. Expect an independent assessor to inspect the property and produce a scope of works. The strength of your position at that inspection depends almost entirely on the quality of the records you kept during the build.
BUILTLY is building a record of completed Australian homes that credits the builder, designers and trades behind each one.
Common mistakes to avoid
Warning - common mistakes
Paying a deposit before sighting the certificate
Once the deposit is paid, leverage is gone. In most jurisdictions the certificate must be provided before any money is demanded, so paying first both weakens your position and waives a protection the legislation gave you.
Assuming the policy covers everything that goes wrong
The cover is capped and most schemes are last resort; Victorian Home Warranty for eligible new contracts from 1 July 2026 has broader claim triggers. Treating it as general consumer protection leads homeowners to skip due diligence on the builder, which is where the real protection lies.
Splitting a contract to fall under the threshold
Where a builder proposes breaking one job into several smaller contracts, the effect is often to take the work below the value that triggers the scheme. That removes your cover, and in several states the practice is itself a breach.
Missing the claim time limit
A meritorious claim lodged outside the limit will be declined. Record the completion date, the contract end date and the applicable limits for your state as soon as the build finishes.
Not checking that the insured entity matches the contracting entity
A policy in the name of a related company does not cover a contract signed by a different one. This mismatch is a frequent reason claims are declined, and it is trivially avoidable at signing.
Discarding records after handover
Cover can run for six years. Contracts, variations, progress payment records, inspection reports and photographs need to survive that long, because a claim in year five is assessed on what you can still produce.
Recording cover in the project record
Home warranty insurance is only as useful as the paperwork that supports a claim under it. The insurer assesses what happened on the build, not what you remember about it, and the gap between those two things widens every year after handover.
A complete record for warranty purposes includes the following, kept together and dated.
What to keep for the life of the cover
- The executed contract and every signed variation
- The certificate of insurance and your independent verification of it
- The builder's licence check result at the date of signing
- The full progress payment history, with dates and amounts paid
- Inspection reports at each stage, including any independent inspections
- Dated progress photographs, particularly of work that is later concealed
- The handover package, including warranties, certificates and manuals
- All defect notifications, builder responses and rectification records
Concealed work deserves specific attention. Waterproofing membranes, structural connections, drainage and services are all covered by the policy but invisible after lining and finishing. Photographs taken before those elements are closed up are frequently the only evidence available years later, and they are the records homeowners most often fail to capture.
BUILTLY and warranty evidence
BUILTLY is building a record of completed Australian homes that credits the builder, designers and trades behind each one.
That matters most at the moment it is hardest to assemble. A claim is usually made under time pressure, years after the events it relies on, and often after the builder is no longer available to fill in the gaps. A record kept properly during the build is what an insurer, assessor or tribunal can actually rely on.
Frequently asked questions
What is home warranty insurance in Australia?
Home warranty insurance is a statutory insurance scheme, usually operating as last-resort cover, that protects homeowners when a residential builder cannot complete or rectify contracted work because the builder has died, disappeared, become insolvent or had their licence cancelled in certain circumstances. It is required by law in most states and territories for residential building work above a set contract value, and the builder is responsible for arranging the required cover. Victoria’s Home Warranty and legacy DBI have different rules, as explained in the state-by-state section. It is called different things in different jurisdictions, including Home Warranty (administered by the BPC, from 1 July 2026) and legacy Domestic Building Insurance in Victoria, Home Building Compensation cover in New South Wales and Building Indemnity Insurance in South Australia.
Is home warranty insurance the same as a builder's warranty?
No. A builder's statutory warranty is a legal obligation the builder owes you directly under state legislation, covering workmanship, materials and compliance for a defined period after completion. Home warranty insurance is a separate insurance policy. Many schemes respond only to specified triggers such as death, disappearance, insolvency or failure to comply with a tribunal order. Victoria’s Home Warranty and legacy DBI have different rules, as explained in the state-by-state section.
How much does home warranty insurance cost in Australia?
The premium is usually paid by the builder and passed on within the contract price. As a general guide, the premium commonly sits within a fraction of one per cent to around one per cent of the contract value, varying by state, contract value, dwelling type and the builder's risk profile. Builders with a weaker financial position or a history of claims typically attract higher premiums, and some are refused cover entirely. Because you fund it through the contract price, you are entitled to see the certificate of insurance for the policy you have paid for.
How long does home warranty insurance last?
Cover periods vary by jurisdiction but most schemes follow a similar shape: around six years from completion for structural or major defects and around two years for non-structural defects. There are usually separate, shorter time limits for non-completion claims, often measured from the date the contract ended rather than the date of completion. Because the limits differ between states and are periodically amended, confirm the current periods with the scheme administrator or building regulator in your state before relying on them.
Which states in Australia do not have home warranty insurance?
Tasmania and the Northern Territory do not operate a conventional statutory home warranty insurance scheme of the type found in the eastern states. Tasmania relies on contract and dispute-resolution legislation together with the builder's own insurance arrangements, and the Northern Territory operates a narrower residential building certification arrangement. If you are building in either jurisdiction, due diligence on the builder's financial position, licensing and contract terms carries proportionally more weight because there is no last-resort insurer standing behind the work.
What is not covered by home warranty insurance?
The schemes are deliberately narrow. They generally exclude normal wear and tear, damage caused by the homeowner or by failure to maintain the property, consequential losses such as alternative accommodation or lost rent in many jurisdictions, work carried out by trades you engaged directly outside the head contract, and work under the value threshold. They also exclude claims where the builder is still trading and able to rectify, because in that situation the correct path is the statutory warranty against the builder. Cover is capped at a maximum amount per dwelling.
How do I check that home warranty insurance is in place before I sign?
Ask for the certificate of insurance in writing before you pay a deposit or start work. The certificate should name you as the beneficiary, name the builder, identify the property address, state the contract value and carry a policy number. Then verify it independently with the scheme administrator or the insurer rather than relying on the copy the builder supplies. In several states you can also confirm the builder's eligibility and the policies issued in their name through the regulator's online licence search.
Can an owner-builder get home warranty insurance?
Owner-builders generally cannot take out home warranty insurance for their own work. In several states an owner-builder who sells the property within a defined period after completion is required to obtain owner-builder insurance or provide a defects report to the purchaser. This is a distinct product with different cover and different time limits, and it is a common area of non-compliance when owner-built homes are resold.