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Available 24/7 | 0800 088 4170
The difference between storm and flood damage can have a tremendous impact on the success of an insurance claim, and when bad weather strikes in the UK, making the wrong claim could cost you thousands. In some cases, it may even see your claim rejected.
We’ve put together everything you should know as a UK home or business owner.
Skip to:
Why the difference matters
What is storm damage, and how do insurers define it?
What is flood damage, and how is it different?
Storm damage vs flood damage: Key differences at a glance
Why the distinction matters for an insurance claim
Can it be storm damage AND flood damage?
What to do if your property is damaged by a storm or flooding
Why are claims or flood damage rejected?
What can you do if your flood damage claim is rejected?
What is Flood Re, and how does it help with my claim?
Storm and flood damage restoration: Getting your property back
FAQs
After severe weather, where your home or business has been damaged or suffered from severe water ingress, your first instinct might be to panic, but the second is likely to be to call your insurer. As much as you may rush to do this, you might need to ask yourself a question first. Was this damage caused by a storm or a flood?
You are probably thinking it doesn’t matter. Water got in, your property is damaged, and items are ruined. Fundamentally, water did this, so it’s all the same, right? Wrong.
There is a distinction between the two, and when it comes to insurance, this difference plays a huge role in whether your claim will be successful.
The thing is, it’s the definition your insurer applies that matters and determines whether you are covered. Some insurers may label one thing a flood, while others may label it a storm. Giving your incident the wrong label could delay your claim, reduce any payout, and, as some people have found, have the claim rejected altogether.
Storm damage refers to physical damage caused directly by severe weather conditions such as high winds, heavy rain or excessive snowfall. It’ll normally affect the structure or exterior of your property rather than cause water to find a way in at ground level.
Insurers, as many of us may know, won’t just take your word for it. If they did, they would be paying out all the time. Instead, they take data from credible sources to verify the information and ascertain whether your property damage was caused by a storm or not.
According to the Association of British Insurers (ABI), a storm is generally considered to have occurred when:
Your insurer will assess local weather reports and also check whether other properties in the area were affected in a similar way to yours. If, for example, your immediate neighbours suffered no damage to their property at all, it’s likely your claim may be analysed with a little more scrutiny.
Storm damage is most prominently found to affect the external parts of your property as well as the higher-level floors. Common examples of storm damage include:
Perhaps the most important thing for both property owners and insurers to be aware of is whether there is a link between the storm and the damage. If, for example, water came through the roof, but the roof was already in poor condition, and the storm had accelerated the problem, an insurer is less likely to uphold your claim. They’ll instead attribute the issue to wear and tear.
Flood damage occurs when water enters your property from an external source at ground level. This could be a river bursting its banks, groundwater rising or tidal surges, for example. Unlike storm damage, where wind or rain affecting your roof or walls is the issue, flood damage is water encroaching on your property from floor level or below.
Just like with storm damage, it can become quite apparent when your property has fallen victim to flooding. You’ll normally notice:
| Factor | Storm Damage | Flood Damage |
|---|---|---|
| Primary cause | High winds, heavy rain, hail, snow | Water ingress from ground level |
| Entry point | Through damaged roof, walls, and windows | Through doors, floors and drains |
| Damage location | Upper floors, roof, exterior structures | Ground floor, basement, lower walls |
| Insurance coverage | Usually included in standard home/building insurance | Often requires separate flood cover |
| Insurer verification | Met Office data, local reports | Flood mapping, Environment Agency data |
| Claim complexity | Moderate | High, especially in flood-risk zones |
| Typical restoration | Structural repairs, drying, and roof works | Full drying, decontamination, and structural repairs |
The difference between storm and flood damage has very real consequences for your insurance claim. With many insurers applying different definitions, it’s often confusing to know whether you are truly covered.
Many home insurance policies contain storm damage as standard, yet flood damage is often a grey area. A large number of standard policies exclude it, especially for properties in areas deemed to be high flood risk. This means that quite often, you’ll need specific flood coverage as a separate product or as an upgrade on your current plan.
So, before making any claims, check your policy documents for:
We have touched upon this already, but an article from Which? in April 2025 found that more than half of the home insurance policies they reviewed had no definition for flood, and a third had no definition for storm. With such a lack of clarity, significant claims have been disputed.
BBC London reported in September 2023 how a homeowner in London had her property damaged by flooding, but her insurer refused to pay out, arguing that the weather that led to the damage did not meet their definition of a storm. This was despite the BBC weather presenter confirming significant rainfall. With the insurer refusing to budge, the lady was left facing a repair bill of thousands, and paying for hotel accommodation whilst repairs were conducted.
At times, storm damage and flood damage can occur simultaneously. The storm might damage your roof, and heavy rainfall may overwhelm the drainage, leading to the ground floor being damaged. These, despite stemming from the same incident, are treated as two separate perils under most policies.
As a result, you would need to make two separate claims, one for the storm damage and one for the flooding. Each may have different excess levels, so it’s worth noting the small print in your policy.
Acting fast and with care will greatly improve the chances of a successful claim.
Before you call your insurer, you’ll want to have plenty of information that can support your claim.
Expect to answer several questions. It’s not to catch you out, but it's to ensure your claim is valid. You’ll likely be asked:
Claims can often be rejected due to minor inconsistencies or a lack of understanding.
In the article from Which? that we referenced earlier, it was mentioned that the lack of definition for both a flood or a storm in policy documents often sees claims go in the insurer’s favour.
The Financial Ombudsman Service (FOS) has upheld many homeowner complaints when they were refused on a technicality. This is an avenue worth pursuing if you believe your claim has been wrongly rejected. You have a right to:
The FOS applies what it considers to be “reasonable expectations” of a customer. This means you don’t need to win every legal argument to win your case.
Some properties are in high flood-risk areas. These often prove expensive to insure. Flood Re makes this type of insurance much more affordable and accessible. However, it is not available to everyone. Commercial properties and buy-to-let landlords, for example, are ineligible.
You can check whether your property is eligible via the Flood Re website.
Once your insurance claim is settled, either for or against you, it is essential to get your property back to its best possible condition. Professional restoration is crucial and will prevent long-term structural issues, mould growth and further deterioration.
Storm damage restoration will normally include:
You can find out more about our specialist water damage restoration services to see how our team can help in the event of a storm.
Flood damage restoration can be a much more labour-intensive process and is often quite complex. It will normally involve:
Attempting to rush the drying process or skipping it altogether, is a common and costly mistake. A property that may appear dry can still retain high levels of moisture within its walls and floors. This could lead to mould growth, structural damage, and, unfortunately, health issues even months later.
At Ideal Response, our specialist teams handle both storm and flood damage restoration for residential and commercial properties across the UK. We work directly with insurance companies and their loss adjusters, helping to document damage thoroughly and ensure claims are supported with the right evidence. With 24/7 response, we can attend your property anytime. Contact us today on 0800 088 4170 or complete an online enquiry for rapid assistance.
Chris Hedges is Head of Marketing at Ideal Response and the author of every article published on this site. With over 25 years of senior marketing experience across property, legal, and professional services sectors, Chris brings a clear, evidence-led approach to writing about fire damage, flood restoration, and specialist property remediation. His philosophy is simple: cut through the noise, respect the reader's time, and give people the information they actually need.
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