Flood Insurance — What the Policy Wording Actually Says

Flood is one of the most misunderstood covers in Australian insurance. Homeowners and business operators often assume they’re covered for water damage — then discover at claim time that the type of water matters as much as the damage itself.

Understanding how your policy defines flood, storm and rainwater is essential before you need to make a claim.

The three types of water damage — and why they’re treated differently

Rainwater and storm water

Damage caused by rain falling during a storm, including water entering through a damaged roof or wall, is generally covered under most home and commercial property policies as a storm event. This is the broadest and most commonly covered water peril.

However, even here there are conditions. Water damage from a roof that was already in poor condition before the storm may be attributed to a maintenance issue rather than the insured event — policies typically exclude damage arising from wear, tear or gradual deterioration.

Flood — as defined in the policy

In Australia, flood is typically defined as the covering of normally dry land by water that has escaped or been released from the normal confines of a lake, river, creek, reservoir, canal or dam. This is riverine or catchment flooding — what most people picture when they think of floodwaters.

Since 2012, most home building and contents policies sold in Australia must offer flood cover as an option (following recommendations from the Natural Disaster Insurance Review). However:

• Flood cover may be optional rather than automatic — check whether it’s included in your schedule
• Sublimits may apply — you may be covered for flood but only up to a cap lower than your total sum insured
• Higher excesses often apply to flood claims than to other perils
• Properties in high-risk flood zones may find flood cover unavailable, restricted or priced significantly higher

Storm surge

Storm surge — the inundation of coastal land by seawater pushed inland by a tropical cyclone or severe storm — is a separate peril and is commonly excluded from standard policies. This is particularly relevant for properties near the coast in Queensland, the Northern Territory and Western Australia.

If your property is in a coastal area, check your policy wording specifically for how storm surge is treated. It may be excluded entirely, covered up to a sublimit, or require a separate endorsement.

How to read your policy’s flood definitions

The key sections to review are:

• Definitions — the policy’s specific definition of “flood”, “storm”, “rainwater” and sometimes “water damage”. The definitions section controls how claims are assessed.
• Insured events or cover sections — which of these defined events are actually covered under your policy type
• Exclusions — events or causes of loss that are excluded, even if they look similar to covered events
• Special conditions — additional conditions that apply to specific perils, often including higher excesses or sublimits

If you’re uncertain how your policy treats a specific scenario — for example, a creek at the back of your property flooding after heavy rain — ask your broker to walk you through the definitions before you need to use them.

Business interruption and flood

For businesses, flood can trigger not just property damage but extended trading losses. Business interruption policies generally require a physical insured event at your own premises to trigger cover. If flood is not an insured event under your property section, it won’t trigger business interruption cover either.

Businesses in flood-prone areas should also consider:

• Whether their indemnity period (the length of time BI will pay) is long enough to reflect realistic recovery timelines after a major flood event
• Whether access disruption is covered — some BI policies cover situations where customers or suppliers can’t reach you due to flood damage to infrastructure nearby, even if your own premises are undamaged

Flood mapping and your property

Local councils and state governments publish flood mapping that indicates the probability of flooding for different areas. Insurers use this data when assessing risk and pricing policies. If your property appears on a flood map — even in a low-probability zone — it may affect your premium and the terms available to you.

If you’re purchasing a property, reviewing the flood map for the area is worth doing before settlement. Your conveyancer may flag this, but the insurance implications are worth exploring separately.

What to do if you’re in a flood-prone area

• Confirm whether flood cover is included in your policy and whether it’s subject to sublimits or higher excesses
• Understand the difference between flood, storm and storm surge as defined in your specific policy
• Consider whether your business interruption cover would respond to a flood event and whether the indemnity period is adequate
• If cover is unavailable or restricted, ask your broker whether alternative markets or specialist underwriters may offer broader terms

If you’d like help reviewing your flood cover, contact WebInsure. We can compare policy wordings across multiple insurers and help you understand where your cover starts and stops.

This post provides general information only and does not constitute personal advice. Cover availability, terms, exclusions and premiums vary by insurer, product and individual circumstance. Always review the Product Disclosure Statement and confirm suitability before making a decision.

WebInsure Pty Ltd ABN 32 054 247 666 is an Authorised Representative 000271148 of Community Broker Network Pty Ltd ABN 60 096 916 184 AFSL 233750.