Flood claims in Australia: when and how an independent assessor helps

Flood, storm water and the sea

Following the 2010 and 2011 floods in Queensland and elsewhere, a standard definition of flood was introduced for home and contents insurance. It broadly describes flood as the covering of normally dry land by water escaping or released from the normal confines of a watercourse, lake, reservoir, canal or dam. Rainwater run-off and storm water are usually treated differently, and damage from the sea, such as storm surge or erosion, is commonly excluded or limited.

Insurers also provide a Key Facts Sheet summarising cover. Check whether your policy includes flood cover, whether you opted out of it, and how storm, run-off and actions of the sea are treated.

Why the source of water matters so much

Many properties are affected by both heavy rainfall and rising rivers. If you have storm cover but no flood cover, the insurer may decline on the basis that riverine flooding caused the damage. If both are covered, limits or excesses may differ. Establishing the sequence and source of water through evidence is therefore central, and this is where an independent assessor, sometimes with a hydrologist, can be decisive.

Evidence to gather while the water recedes

Record everything before cleaning up, if it is safe to do so. Photos of water lines on walls, debris in the yard, the direction of flow and the state of drains and gutters can all help show what happened.

• Timed photos and videos during and after the event
• Rainfall and river gauge records for your area
• Statements from neighbours about how water entered
• Council or emergency service notices
• Photos of damaged contents before disposal, with a list

The claim process step by step

Lodge the claim promptly and ask about emergency help such as temporary accommodation or advance payments. After a widespread event, insurers may triage claims and send assessors in waves. Begin drying where safe, as mould can develop within days, and keep receipts for cleaning and drying costs.

The insurer's assessor or adjuster will investigate the cause and extent of damage. The decision on liability, followed by the scope of works and cash or repair options, should be communicated in writing with reasons.

Contents ruined by flood water often have to be discarded quickly for health reasons. Before disposal, photograph each item with its label or model number where visible, and keep small samples of carpets and fabrics if practical. Councils frequently organise kerbside collections after floods; keep a record of what was put out and when.

What your own assessor focuses on

A policyholder's assessor tests the insurer's conclusions on cause, reviews any hydrology report the insurer relies on, and commissions independent evidence where needed. On quantum, they look for omissions such as wall linings that must be removed to dry framing, electrical and appliance replacement, mould remediation, joinery and floor coverings throughout continuous areas.

They also check that the insurer has considered the full drying process. Rushed reinstatement over damp framing is a common cause of later mould and repeat claims. Asking for moisture readings to be recorded before linings are reinstated protects both you and the insurer from a second round of damage.

Mould and hidden damage

Flood water is rarely clean, and hidden moisture inside walls and under floors can cause health and structural issues. Insist on moisture testing before linings are reinstated. If mould appears after the insurer's repairs, report it in writing immediately. An independent hygienist's report can support your request for further work.

Northern Australia and cyclone-related flooding

In northern Australia, flooding often comes with cyclones. A government-backed cyclone reinsurance pool was introduced to support cover for cyclone and related flood damage in the north. It operates behind the insurer and does not change how you claim, but it is worth checking with your insurer how cyclone-related flood damage is treated under your policy.

Challenging a declined flood claim

Ask the insurer for its reasons and the reports it relied on. Respond in writing through its internal dispute resolution process, with your own evidence. If you remain unsatisfied, lodge a complaint with the Australian Financial Complaints Authority. AFCA is free for consumers and eligible small businesses and has dealt with many flood disputes, including complex questions of causation.

You do not need a paid representative to go to AFCA, but technical evidence prepared by an independent specialist can strengthen your case.

If your neighbours received different decisions from their insurers, that alone does not prove your case, because policies differ. However, information about how water reached nearby properties can be useful evidence about the source and timing of the water at yours.

In flood claims, the source of water and the quality of evidence often decide the outcome. Gather facts early, read your cover closely and seek independent help when the insurer's conclusions do not match what you saw.