Water damage in Australia: what it costs, and what your insurer is taken to cover

The question underneath the question is who pays

Water damage is unusual among home repairs: in most cases an insurer decides whether it gets paid for, and the householder’s exposure is the excess rather than the invoice. That single fact reorders everything. It means the price of the job matters less than whether the cause falls inside a listed event. It means the most expensive mistake is usually made in the first day, before anyone has quoted anything. And it means the research that pays for itself is not price research — it is reading four short provisions.

Canadian restoration sites work this out and publish long insurance-claims pages about it. Australian ones, almost without exception, give it one line in a hero banner or a single FAQ entry. That gap is the reason this site exists.

The diagram above is the whole argument in four boxes. Where the water came from decides which provision governs, and three of the four answers are settled by regulation rather than by the policy:

Reg 34 does not merely offer a definition. The note to it, and Insurance Contracts Regulations 2017 (Cth) reg 34(1), note; Insurance Contracts Act 1984 (Cth) s 37B(3), apply that meaning to a prescribed contract even where the contract — or a notice, document or piece of information the insurer gave you about it — says something different. So if your insurer declines a claim on a flood exclusion, the first question is not what the policy defines flood as. It is whether the water came out of one of those seven things.

Where the money actually goes

A restoration invoice is not one number. It is an attendance, some hours of extraction, and then equipment hire multiplied by days — and it is the multiplication that surprises people. Two Australian companies publish their rates openly, which is rare enough in this market to be worth reproducing in full.

Notice the shape of it. A single dehumidifier at $149 a day, held for the published three-day minimum, costs more than the call-out. Six air movers on a four-day dry is 1,656 dollars of hire before anyone has touched a wall. This is why the honest answer to “how much will this cost” is a question back: how many rooms, and how many days.

The cost page has the calculator that does the multiplication, and shows every line it added.

Clean water does not stay clean

The other multiplier is contamination. Restorers scope by category, and the category moves with time: water from a supply line is sanitary when it arrives and is not sanitary three days later in a warm subfloor. What changes is not the cost of the drying but the cost of everything that now has to be removed rather than dried.

The first 48 hours are the part you control

Almost nothing about an insurance claim is in your hands. These things are:

1. Stop the water and photograph it before you do. Every provision that decides the claim turns on the cause, and the cause is easiest to prove while it is still happening.
2. Mitigate. Every Australian home policy carries a duty to take reasonable steps to prevent further loss. Lifting rugs, moving furniture off wet carpet and getting extraction started are all within it.
3. Do not throw anything out yet. Photograph it, bag it, keep it somewhere. An assessor cannot assess a skip.
4. Lodge, even if you are not sure it is covered. Lodging starts the Code clock. General Insurance Code of Practice, paragraph 68 gives the insurer 10 business days to tell you what it needs.
5. Ask for an advance if you need one. General Insurance Code of Practice, paragraph 64: where you demonstrate urgent financial need, the insurer pays an advance amount within 5 business days.

The full checklist goes through what to photograph, what an assessor will ask for, and the three things people routinely do in the first day that cost them money later.

Where to go from here

Common questions