You have just signed a contract for a brand new home — a house and land package in a growth corridor, or maybe a custom build on a block you found yourself. It is exciting. The builder is licensed, the contract looks solid, and you are counting down the months until you get the keys.
But what happens if the builder goes bankrupt halfway through construction? What if they finish the build but the roof starts leaking six months later and they refuse to fix it? What if they simply disappear?
This is where home warranty insurance comes in. Also known as builders warranty insurance, it is a statutory insurance product that protects homeowners when their builder cannot or will not fix defective work or complete a build. Every state in Australia (except Tasmania) requires it for residential building work above a certain value — and if your builder does not have it, that is a major red flag.
This guide covers everything first home buyers need to know about home warranty insurance in 2026: what it is, what it covers, state-by-state thresholds, how much it costs, how to make a claim, and the new build checklist that protects you from day one.
What Is Home Warranty Insurance?
Home warranty insurance (also called builders warranty insurance) is a type of insurance that protects homeowners if their builder:
- Dies or becomes incapacitated during or after the build
- Disappears — stops responding, abandons the project
- Becomes insolvent — goes bankrupt, enters administration, or is otherwise unable to meet their financial obligations
- Has their licence suspended or cancelled and can no longer legally perform building work
It goes by different names in different states:
- NSW: Home Building Compensation Fund (HBCF)
- VIC: Domestic Building Insurance (DBI)
- SA / ACT: Building Indemnity Insurance (BII)
- WA / NT: Home Indemnity Insurance (HII)
- QLD: Home Warranty Insurance (HWI) — administered by QBCC
This is critical and commonly misunderstood: home warranty insurance is not a quality guarantee. It does not cover you if your builder simply refuses to fix a problem while still being a functioning, licensed business. In that case, your recourse is through the relevant state building authority, a tribunal (like NCAT in NSW or VCAT in Victoria), or the courts.
Home warranty insurance is a last resort safety net. It kicks in when the builder is unable to fulfil their obligations — not when they are unwilling. Think of it as insurance against builder insolvency, not against poor workmanship.
The insurance is taken out by the builder (not you), and the cost is typically passed on to you as part of the building contract. The policy stays with the property — it protects you and any future owners for the coverage period. This is not the same as home and contents insurance, which you arrange separately after settlement.
Home Warranty Insurance by State — Thresholds and Requirements
Each state administers home warranty insurance differently. Here is the complete state-by-state breakdown for 2026:
| State | Local Name | Threshold | Insurer | Structural Cover | Non-Structural Cover | Max Cover |
|---|---|---|---|---|---|---|
| NSW | HBCF | $20,000 | icare | 6 years | 2 years | $340,000 |
| VIC | DBI | $16,000 | BPC (VMIA) | 10 years | 2 years | $300,000 |
| QLD | HWI | $3,300 | QBCC | 6 yrs 6 months | 6 months | $200,000 |
| WA | HII | $20,000 | QBE / approved | 6 years | 6 years | $100,000 |
| SA | BII | $12,000 | QBE / approved | 5 years | 5 years | $150,000–$200,000 |
| ACT | BII | $12,000 | QBE / approved | 6 years | 2 years | Varies |
| NT | HII | $12,000 | Approved | 6 years | 2 years | Varies |
| TAS | N/A | Not required | — | — | — | — |
Key takeaways from this table:
- Victoria has the longest structural warranty — 10 years vs 6 years everywhere else
- Queensland has the lowest threshold ($3,300) — almost all building work is covered
- WA does not distinguish between structural and non-structural for insurance — both get 6 years
- Tasmania is the only state where it is not mandatory
- NSW has the highest coverage cap at $340,000
If your builder tells you that home warranty insurance is not required for your build and the work is above the threshold for your state, do not proceed. A builder who does not have or will not obtain mandatory insurance is either unlicensed, uninsurable (which suggests a history of claims or insolvency risk), or operating illegally.
What Does Home Warranty Insurance Cover?
Home warranty insurance covers two main categories of defects, with different warranty periods for each:
Structural defects — 6 years (10 years in VIC)
Structural defects affect the fundamental integrity of the building:
- Foundation and footing failures (cracking, sinking, shifting)
- Load-bearing wall defects
- Roof structure failures (not cosmetic — structural integrity)
- Floor structure defects (sagging, uneven, structural failure)
- External wall defects that compromise weather-tightness
Non-structural defects — 2 years
Non-structural defects relate to workmanship and finishes:
- Waterproofing failures in bathrooms, laundries, and balconies
- Plumbing defects (leaks, poor drainage, incorrect installation)
- Electrical defects (faulty wiring, non-compliant work)
- Tiling defects (cracking, lifting, poor finishing)
- Painting defects (peeling, bubbling, uneven application)
- Fixture and fitting issues (doors, windows, cabinetry)
Other covered losses
- Incomplete work — if the builder abandons the project, insurance covers the cost to engage another builder to complete it
- Loss of deposit — if you paid a deposit and the builder becomes insolvent before starting work
What is NOT covered
- Normal wear and tear — paint fading, carpet wearing, timber weathering
- Damage you cause — modifications, DIY work, neglect
- Defects you knew about before purchase
- Work done without proper permits — if the building work did not have the required council approvals
- Work below the insurance threshold — minor works below the state's mandatory threshold
- Work done by unlicensed builders — insurance only covers licensed builders
- Consequential losses — alternative accommodation, lost rental income, or personal property damage (these may be covered by your home and contents insurance or through a legal claim)
When Can You Make a Claim?
This is where most homeowners get confused. Home warranty insurance is only triggered when your builder:
- Has died or become incapacitated
- Has disappeared — cannot be contacted, has abandoned the project
- Has become insolvent — entered administration, liquidation, or bankruptcy
- Has had their licence suspended or cancelled
- In some states: has failed to comply with a tribunal or court order to fix defective work
You cannot claim simply because you are unhappy with the quality of work. If your builder is still operating but refusing to fix a defect, your first step is to contact your state building authority:
- NSW: NSW Fair Trading
- VIC: Victorian Building Authority (VBA)
- QLD: Queensland Building and Construction Commission (QBCC)
- WA: Department of Mines, Industry Regulation and Safety (DMIRS)
- SA: Consumer and Business Services (CBS)
These authorities can investigate, mediate disputes, and issue compliance orders. If the builder still refuses, you can escalate to a tribunal (NCAT, VCAT, QCAT) or the courts. Home warranty insurance is the safety net when all other options have been exhausted because the builder no longer exists as a viable business.
Time limits: You must discover and report structural defects within the structural warranty period (6 years in most states, 10 years in VIC) and non-structural defects within 2 years of completion. These periods run from the date of practical completion (handover), not from the date of the contract.
How Much Does Home Warranty Insurance Cost?
Home warranty insurance typically costs $1,500 to $5,000+ per project, depending on:
- Contract value — higher-value builds cost more to insure
- State — each state's scheme has different premium structures
- Builder's claims history — builders with a history of claims pay higher premiums (and this gets passed to you)
- Type of work — new builds vs renovations vs additions
As a rough guide:
| Contract Value | Typical Premium Range |
|---|---|
| $50,000 – $100,000 | $1,000 – $1,500 |
| $100,000 – $300,000 | $1,500 – $3,000 |
| $300,000 – $500,000 | $2,500 – $4,000 |
| $500,000+ | $3,500 – $5,000+ |
The builder arranges and pays for the insurance, but the cost is included in your building contract. You should see the insurance premium itemised as a line item — if you do not, ask your builder to break it out. Your conveyancer or solicitor can check this during the contract review.
Important: the insurance premium is a one-off cost. There are no ongoing payments. The policy covers the full warranty period from the date of practical completion.
New Build Home Warranty — What to Check Before You Sign
If you are building your first home, here is the checklist that protects you from day one. Do not sign the building contract until you have ticked every box:
- Ask your builder to show you the Certificate of Insurance. Every builder must provide this before work begins. It proves they have valid home warranty insurance for your specific project.
- Verify the certificate is genuine. Contact the insurer listed on the certificate and confirm it is current. Your conveyancer can do this as part of the contract review.
- Check the insurance covers the full contract value. The coverage amount on the certificate should match or exceed your building contract value.
- Confirm structural and non-structural coverage periods. Know exactly how long you are covered for each type of defect in your state (see the table above).
- Check the builder's licence is current. Verify with your state building authority that the builder's licence is valid and there are no outstanding complaints or disciplinary actions.
- Keep a copy of the certificate. Store it with your building contract. You will need it if you ever make a claim — and if you sell the property, the new owner benefits from the remaining coverage period.
- Book an independent building inspection. Arrange for a building inspector to conduct a practical completion inspection before handover. This identifies defects while the builder is still obligated to fix them.
If you are calculating how much you can borrow for a new build, remember that the home warranty insurance cost is included in the building contract — it is already factored into the total price your lender assesses. WA buyers building with Keystart should note that Keystart funds construction loans, and the builder must have warranty insurance in place before the first progress payment.
Home Warranty Insurance for Owner Builders
If you build your own home using an owner builder permit, different rules apply. You do not need home warranty insurance during construction (because you are both the builder and the owner). However, if you sell the property within the warranty period (typically 6 years), you may be required to arrange home warranty insurance to protect the buyer.
This requirement varies by state:
- NSW: Owner builders must arrange HBCF if selling within 6 years and the work exceeded $20,000
- VIC: Owner builders must arrange DBI if selling within 6 years and 6 months of completion
- QLD: Owner builders must disclose all building work to buyers (QBCC requirements)
- WA: Owner builders must arrange HII if selling within 6 years
Owner builder insurance can be difficult and expensive to obtain. Insurers view owner builders as higher risk because they typically lack the experience and trade qualifications of licensed builders. If you are considering an owner builder permit, factor this into your plans — especially if you might sell within 6 years. Our building a house guide covers owner builder vs licensed builder in more detail and is worth reading before you apply for an owner builder permit.
Home Warranty Insurance vs Home and Contents Insurance
These are two completely different insurance products that cover completely different risks. If you are buying a new build, you need both.
| Feature | Home Warranty Insurance | Home and Contents Insurance |
|---|---|---|
| What it covers | Builder defects and insolvency on new builds/renovations | Damage to your home and belongings from events (fire, storm, theft, flood) |
| Who takes it out | The builder (cost passed to you) | You (the homeowner) |
| When it applies | Only when the builder cannot fix defects (insolvency, death, disappearance) | When your property or belongings are damaged by covered events |
| Duration | 2 years non-structural, 6 years structural (10 years VIC) | Annual policy, renewed each year |
| Ongoing cost | One-off premium included in build cost ($1,500–$5,000) | Annual premium ($1,000–$3,000+ depending on cover) |
| Transfers with property | Yes — protects future owners too | No — new owner arranges their own policy |
Home warranty insurance does not cover fire, storm damage, theft, or flooding. Home and contents insurance does not cover builder defects. You need both.
If you are looking for home and contents insurance for your new build, NestPath can match you with insurance providers — free, no obligation.
How to Claim on Home Warranty Insurance
If your builder has died, disappeared, or become insolvent and you have defective or incomplete work, here is the claims process:
Step 1: Document the defect
Take detailed photographs and videos. Note the date you discovered the defect. For structural issues, get an independent building inspector to assess and document the problem — their report is critical evidence.
Step 2: Confirm the builder cannot fix it
Gather evidence that the builder is unable to fulfil their obligations — proof of insolvency (ASIC records), licence cancellation (state building authority records), or evidence they have disappeared (unanswered correspondence over a reasonable period).
Step 3: Contact your state building authority
Notify the relevant authority (Fair Trading NSW, VBA VIC, QBCC QLD, DMIRS WA). They can confirm the builder's status and guide you through next steps.
Step 4: Lodge the claim with the insurer
Contact the insurer listed on your Certificate of Insurance. Provide: the insurance certificate, your building contract, evidence of the defect (photos, building report), evidence the builder cannot fix it, and all correspondence with the builder.
Step 5: Assessment and resolution
The insurer assesses your claim. If approved, they arrange and pay for repairs or completion work by an alternative builder. Expect 4 to 12 weeks for straightforward claims. Complex structural defect claims can take longer.
Tips for First Home Buyers Building a New Home
If you are buying a house and land package, a new build, or undertaking a major renovation, here are the practical steps to protect yourself at each stage:
Before signing the contract
- Verify the builder's licence. Check with your state building authority that the builder's licence is current and there are no outstanding complaints or disciplinary actions.
- Ask for the home warranty insurance certificate. Verify it is genuine, current, and covers your specific project for the full contract value.
- Have the contract reviewed. Your conveyancer or solicitor should review the building contract before you sign. They will check that insurance is in place, the contract terms are fair, and your rights are protected.
- Talk to a broker about construction loans. If you need finance, get matched with a broker who specialises in construction lending — progress payment structures differ from standard home loans.
During construction
- Monitor progress. Visit the site regularly (with the builder's permission) and take photos at each stage.
- Raise issues in writing. If something does not look right, raise it with the builder via email. Keep copies of all correspondence.
At practical completion
- Get an independent building inspection. Engage an independent building inspector for a practical completion (or "defect") inspection before handover. Do not skip this.
- Create a defects list. Based on the inspection report, create a written list of defects. Most contracts include a "defects liability period" (typically 3 to 12 months) during which the builder must fix identified defects at their cost.
After moving in
- Keep all documentation for the full warranty period. Store your building contract, insurance certificate, inspection reports, invoices, and correspondence for 6 years (10 years in VIC).
- Report defects promptly. If you discover a defect within the warranty period, report it to the builder in writing immediately. Delays can complicate claims.
- Arrange home and contents insurance. Get home and contents insurance from settlement day — this covers fire, storm, theft, and other events that home warranty insurance does not.
Frequently Asked Questions
What is home warranty insurance in Australia?
Home warranty insurance (also called builders warranty insurance) is a statutory insurance product that protects homeowners if their builder dies, disappears, or becomes insolvent during or after construction. It covers the cost of completing incomplete work and repairing defective work. The builder arranges and pays for it, but the cost is included in your building contract. It is mandatory in all Australian states except Tasmania for residential work above specified thresholds.
Do I need home warranty insurance for a new build?
Yes — your builder must arrange home warranty insurance for all residential building work above your state's threshold ($20,000 in NSW and WA, $16,000 in VIC, $12,000 in SA/ACT/NT, $3,300 in QLD). The builder handles the application and payment, and you should receive a Certificate of Insurance before work begins. If your builder cannot provide one, do not proceed with the contract.
How much does home warranty insurance cost?
Home warranty insurance typically costs $1,500 to $5,000 or more, depending on the contract value, state, and builder's claims history. The builder pays the premium and includes the cost in your building contract. It is a one-off cost — no ongoing payments. You should see it itemised in your contract. On a $400,000 new build, expect to pay around $2,500 to $3,500.
What does home warranty insurance cover?
Home warranty insurance covers structural defects (foundations, load-bearing walls, roof structure) for 6 years from completion (10 years in Victoria) and non-structural defects (waterproofing, plumbing, tiling, electrical) for 2 years. It also covers incomplete work and loss of deposit. Coverage is only triggered if the builder has died, disappeared, or become insolvent — not for general quality disputes with a functioning builder.
Is home warranty insurance required in every state?
Home warranty insurance is required in all states except Tasmania. Thresholds range from $3,300 in Queensland (the lowest — almost all building work requires it) to $20,000 in NSW and WA. The Northern Territory requires it for work over $12,000. Tasmania does not currently mandate it, though builders are encouraged to obtain it voluntarily.
How do I check if my builder has home warranty insurance?
Ask your builder for the Certificate of Insurance before signing the contract. The certificate shows the insurer, policy number, coverage amount, and the specific property it covers. To verify it is genuine, contact the insurer directly or check your state's building authority records. Your conveyancer should verify this as part of the contract review.
Can I claim on home warranty insurance for poor workmanship?
Only if the builder has died, disappeared, or become insolvent and cannot fix the defective work themselves. If your builder is still a functioning business but refusing to fix a problem, your remedy is through the state building authority (Fair Trading NSW, VBA VIC, QBCC QLD, DMIRS WA), a tribunal (NCAT, VCAT, QCAT), or the courts — not through the insurance.
Does home warranty insurance transfer if I sell my home?
Yes — the policy stays with the property and protects future owners for the remaining coverage period. If you sell a home that is 3 years old, the buyer still has 3 years of structural cover remaining (7 years in VIC). This is one reason why keeping your Certificate of Insurance is important — the buyer will want a copy.
