Residential warranty schemes, compared
In short
- Every state and territory has a scheme that protects a homeowner if residential building work is not completed or is defective, but the trigger, the instrument used and even whether it counts as insurance at all differ sharply.
- Queensland’s scheme is triggered at a far lower point than the group of states that broadly align, so work too small to trigger an obligation in most of the country still triggers one there.
- The Northern Territory does not use insurance for this purpose at all — it runs a fidelity fund, a different kind of instrument, and describing it as a policy would be wrong.
Residential warranty cover is one of the few insurance-adjacent requirements almost every jurisdiction has some version of, which makes it tempting to assume the schemes behave the same way everywhere. They protect the same kind of homeowner from the same kind of risk, and the resemblance mostly stops there.
This page compares the schemes as instruments — what triggers them and what kind of thing stands behind the protection — without stating the trigger figures themselves, because those are the numbers that move and are recorded separately with a source and a date.
The aligned group
NSW, Victoria, South Australia and Western Australia run schemes that are recognisably the same shape as each other: a per-project insurance product, triggered once the contract value for residential building work crosses a threshold, arranged so a homeowner has somewhere to turn if the builder cannot finish or fix the work. The names differ — Home Building Compensation in NSW, Domestic Building Insurance in Victoria, building indemnity insurance in SA, home indemnity insurance in WA — but the trigger point across this group broadly aligns.
Because the trigger is a contract-value threshold, a lot of smaller residential jobs across these four never engage the scheme at all. That is a deliberate design choice, not a gap — the scheme is aimed at work substantial enough that an incomplete or defective job would be a serious loss to the homeowner.
Queensland: the same idea, a far lower trigger
The Queensland Home Warranty Scheme is the clearest outlier in the country. Its trigger sits well below the aligned group described above — low enough that jobs which would never engage a scheme obligation in most other states are captured by it in Queensland. The contractor, not the homeowner, is the one responsible for arranging and paying for the cover, and the obligation attaches early: before the work gets underway or shortly after the contract is signed, whichever comes first.
The practical effect for anyone quoting comparable jobs on both sides of the Queensland border is that a job classed as too small to need warranty cover in NSW or Victoria can be well inside the scheme in Queensland. Job size is not a reliable guide across the border.
The Northern Territory: a fund, not a policy
The NT does not run an insurance-based warranty scheme at all. Prescribed residential building work is instead covered through a fidelity fund certificate — administered by Master Builders NT — which is a members’-fund mechanism rather than a policy underwritten by an insurer. It protects a comparable interest for the homeowner, but it is not insurance, and treating the two as interchangeable misdescribes how the protection is actually funded and administered.
This distinction matters most for a builder relocating into the Territory from a state that runs an insurance-based scheme, because "getting warranty cover" in the NT means engaging with a fund, not requesting an insurance policy — a different process with a different administering body.
The ACT: the builder chooses the instrument
The ACT sits between the two models above. Residential building work is covered, but the builder can choose between a residential building insurance policy and a fidelity certificate to satisfy the obligation — the territory does not mandate one instrument over the other the way most jurisdictions do.
That choice is a genuine structural difference from every other jurisdiction on this page, none of which offer the builder an equivalent option between an insurance product and a fund-based certificate for the same job.
Tasmania: the condition sits on the licence, not the job
Tasmania takes yet another structural approach. Rather than a per-project warranty product triggered by contract value, Tasmania makes a fixed public liability minimum a condition of holding the builder’s licence itself — an eligibility requirement checked when the licence is issued or renewed, not a product bought separately for each residential job that crosses a threshold.
The practical consequence is that a Tasmanian builder is not asking "does this particular job trigger a warranty obligation" the way a builder in the aligned group would. The cover requirement sits with the licence continuously, and the job-by-job question that dominates elsewhere does not arise in the same form.
Questions
- Is Queensland’s lower trigger a stricter or a more generous scheme for homeowners?
- It captures more jobs than the aligned group does, which is a structural fact about where the line sits rather than a judgement about which approach is better. What it means in practice is that a Queensland contractor needs to check the scheme obligation on smaller jobs than a counterpart interstate would.
- If I hold warranty cover for a project in one state, does it cover the same project if the client is somewhere else?
- No. These are jurisdiction-specific schemes tied to where the residential building work is being carried out, not to where the builder is based. A project in a different state or territory needs its own arrangement under that jurisdiction’s scheme.
- Is the NT fidelity fund certificate equally protective as an insurance-based scheme elsewhere?
- It protects a comparable homeowner interest but is not the same kind of instrument — it is a fund rather than an insurer-underwritten policy, administered differently and worth understanding on its own terms rather than assumed equivalent to insurance.
- Does the ACT’s choice between a policy and a certificate change what the homeowner is protected against?
- The two instruments are offered as alternative ways of meeting the same residential building work obligation. Understanding what each one actually covers is worth doing before choosing, rather than treating the choice as purely administrative.
Sources
- WorkSafe Queensland — Regulator portal covering the Electrical Safety Office and Workplace Health and Safety Queensland, source for Queensland electrical contractor licence conditions.
- Building Commission NSW — building and trade licences — NSW hub for building and trade licence categories and conditions, including where the electrical licence carries no insurance condition.
- Building and Plumbing Commission (Victoria) — Victorian regulator for building and plumbing practitioner registration, including electrical contracting insurance conditions and the single-task exemption.
- Consumer and Business Services SA — South Australian regulator for building work contractor licensing, electrical contractor licensing and building indemnity insurance.
- Consumer Protection WA (Building and Energy) — WA regulator covering building contractor registration, home indemnity insurance and the Electrical Licensing Board.
- Consumer, Building and Occupational Services Tasmania — Tasmanian occupational licensing regulator, source for builder and electrical contractor licence conditions and which trades are unregulated.
- ACT Construction Occupations Registrar — ACT licensing body for construction occupations, including electrical, building and the construction-services disclosure obligation.
- NT Building Practitioners Board — Northern Territory regulator for building contractor registration and which building trades require registration at all.