Protecting your business against burst pipes
Water leaks and burst pipes can cause serious issues for small businesses. In fact, Allianz paid out £20 million between 2023 and September 2025 for burst pipes – and that’s just one insurer.
From damaged stock and equipment to expensive building repairs, even a small leak can quickly turn into a costly problem. A burst pipe could wreak havoc for all types of business whether you run a shop, takeaway, office or any other premised small business.
Top causes for burst pipes in UK small businesses
| Cause | What happens | Why SMEs are at risk | Key triggers |
| Freezing and thawing | Frozen water expands and splits pipes. When it thaws, water pours out | Unheated areas and closed periods mean internal temperatures can drop below freezing | Cold snaps, rapid thaw, heating turned off and seasonal shutdowns. |
| Poor insulation | Exposed or badly lagged pipes freeze and can burst more easily | Older or converted buildings can have long, uninsulated pipe in cold areas | Uninsulated lofts, external taps, draughty areas and ceilings |
| Old and poor‑quality pipework | Corroded or weak pipes and joints can fail, causing leaks or pipes to burst | Pipework may not be maintained or replaced due to extra costs | Old metal pipework, DIY fixes or ‘botch jobs’, or hard water making corrosion worse |
| High water pressure | Excess pressure can strain pipes and fittings until a joint or pipe bursts | Upgraded equipment and more appliances can push water pressure beyond ‘safe limits’ | No pressure‑reducing valves, increases in pressure and operating with high water pressure for long time |
| Blocked pipes and drains | Blockages can raise pressure or cause backflows that can crack or burst pipework | Staff and customers may misuse toilets and sinks, and this is not always maintained | Fat and food waste, wipes and sanitary products and foreign objects in drains. |
| No maintenance | Small leaks can get bigger until a pipe or fitting leads to a burst pipe | Not all business owners take precautionary measures, but react instead, when it’s too late | No routine checks ignored damp signs, no automatic shut‑off or leak detectors. |
| Periods of closure | Burst pipes can go unnoticed for hours or days, making damage worse | If premises are empty overnight, weekends or during seasonal lows this could happen | Holiday shutdowns, low season closures and, water left on with no one doing checks |
Understanding the risks, taking preventative measures and knowing how the right insurance can help protect your business is key, in case the unexpected happens. This guide explains how burst pipes actually happen, how to reduce the risk and how business insurance can help cover the financial impact.
Understanding the risks
Running a business comes with risks. Understanding what business risks are, including water leaks and burst pipes, is key to putting better measures in place to help protect your business in case it does happen - the last thing you want is to close up shop because a pipe has flooded your store.
How changing weather affects pipes
In the UK, burst pipes are often caused by sudden drops in temperature. When water inside a pipe freezes, it expands and puts pressure on the pipe walls. If the pressure becomes too great, the pipe can crack or burst.
But cold weather isn’t the only risk. Older plumbing systems, poor insulation and sudden pressure changes can also lead to leaks or pipe damage. The issue is, many businesses only notice the problem once the water begins leaking into walls, ceilings or floors, which can be a nightmare. This means that burst pipes can happen when the seasons change, although the most common months are January and February.
Because of this, it’s a good idea to educate yourself on potential incidents that could happen and take steps to protect your building before any extreme weather arrives, to prevent serious damage.
Potential damage
A burst pipe can release a large amount of water in a short time which can flood your business, damaging floors, walls, ceilings and electrical systems. Not to mention your expensive stock on shelves or in the storeroom and any staff areas.
Some common types of water damage include:
- Damage to walls, flooring and building structure
- Ruined stock or inventory
- Damage to machinery or business equipment
- Electrical hazards and system failures
- Disruption to normal operations –
For many SMEs, these issues lead to having to close up temporarily, because the issues lead to health and safety hazard. Not only do they lead to costly repairs but also lost income while the property is being fixed This is where water damage insurance as part of a building insurance policy can help protect your business.
Vulnerable areas in your business
Certain areas of a building are more vulnerable to frozen or damaged pipes. For example, pipes located in unheated or poorly insulated spaces are often at the highest risk. Common problem areas include:
- Basements and cellars
- Loft spaces or roof areas
- External walls
- Storage rooms or unused spaces
- Outdoor taps or water supplies
Regularly checking these areas can help you identify early warning signs before a leak becomes a major problem. If you’re not sure how to do this or you suspect there is a problem, it’s a good idea to get in a professional surveyor who specialises in pipe leaks.
How to help protect your business against burst pipes
You can’t completely prevent issues like these from happening, but you can take steps to prevent the likelihood of burst pipes and water damage. Even simple measures can help protect your property, so you reduce the likelihood that you’ll need to make an insurance claim.
Understanding your water system
Take the time to understand the water system in your business. At the very least, you should identify where the main stop tap is so you can quickly shut off the water if needed. This could save your business thousands of pounds in flood damage if you have a burst pipe and have to close for repairs. A stop tap is normally located under a sink, so check your backroom or kitchen to find it in case you ever need to turn it off.
Insulating pipes
One of the best ways to prevent pipes from freezing is proper insulation or what’s called lagging. Pipe insulation can help keep your pipes a stable temperature and helps reduces the risk of freezing during colder months.
As a business owner, you should consider insulating pipes in areas that are exposed to cold temperatures, particularly loft spaces, basements and external walls. Pipe lagging is not particularly expensive, and for a few pounds you can get a roll that you can tape around any pipes to help insulate them.
Keeping an eye on temperature
Now, we don’t mean blast the heating and excessively using up energy. But, when it’s colder outside, you might consider keeping the heating on when you can to help prevent your pipes from freezing and bursting, helping you to avoid the hassle and expense of returning to a flooded business.
Keep on top of maintenance
Maintaining your property is a good way to prevent small issues from becoming a bigger problem. As a business owner you should regularly check for:
- Drips or small leaks
- Signs of damp or mould
- Unusual drops in water pressure
- Water stains on ceilings or walls
When you do identify them, try to find out the cause straight away and fix it before it gets worse and more expensive down the line.
Remember, a leak due to lack of maintenance on your part or wear and tear, won’t to be covered by your insurer. This means if you don’t maintain your property - in line with what your insurer expects – your claim will likely be denied, and you will be left to pay the repairs out of your own pocket. That’s why it’s always important to sort any issues before they get worse.
Always check your own policy wording and not assume that all building issues will be covered by your insurance.
Check what's covered
It’s not uncommon for business owners to think “does building insurance cover leaks?” or “is water damage covered by insurance?”. But the answers to these questions depends on the specific policy taken out and the cause of the damage. In some cases, sudden and unexpected leaks may be covered. However, cover can vary between policies and insurers won't cover damage caused by wear and tear, poor maintenance or gradual deterioration.
Some business insurance policies may include cover for certain types of water damage as part of building insurance, depending on the policy terms. This protection may help pay for repairs if sudden water damage occurs due to insured events such as burst pipes.
If you’re not sure what business insurance you need, check out our helpful guide or start a quote online to see your options, the Bionic team are on-hand to help.
Insurance cover, limits and exclusions vary between insurers and policies. Always check your own policy wording or speak to your insurer or broker to understand what is and isn’t included.
Check your policy wording for limits and exclusions
When taking out cover for burst pipes, you should understand what’s covered and what isn’t, always check your policy wording carefully.
What might not be covered:
- If your property is closed for a specific period of time, your insurer may set out in your policy that the property must be kept heated to a certain temperature to avoid sudden temperature changes and burst pipes.
- Repair costs for the issue that caused the damage
Tara Mitchell – Insurance Technical Manager says “The majority of insurance policies do not provide cover for the replacement of the thing that’s ‘caused the damage’ – this means insurers won’t pay the cost of replacing or repairing a burst pipe, but there are often extensions for ‘trace and access’ to locate the leak which could mean you get some help with any damage caused by trying to find it. For example, specialists may need to cut holes in walls or pull up floors and then put them back as they were. Always check your policy for this so you know what to expect.
I’ve seen also claims declined on the basis of a property being left unoccupied over the winter and pipes burst when the heating was turned back on - always check your own documents carefully.”
What to do if your pipe bursts
Even with the best measures in place, accidents can still happen. Acting quickly may help limit any damages. Always make sure you keep all your documents and records handy for your insurer in case they ask for more details when assessing a claim.
Immediate actions
The first step is to turn off the main water supply to stop the flow of water. This will help prevent further flooding and limit damage to the building. If possible, move valuable equipment, stock or furniture away from burst pipe and water leak. Make sure to ask any members of the public to leave the premises if it safe to do so.
Safety first
Water leaks can create electrical hazards, and this can potentially be very dangerous. If water is close to electrical systems, turn off the electricity supply (if you can access it safely) and avoid touching any equipment. In serious cases, where leaks have crossed wires with electricals, it may be safer to leave the premises and call an emergency plumber to help make the property safe.
Contacting professionals and your insurer
Depending on how bad the damage is you’ll want to get in a professional. If there is no immediate danger, a qualified plumber should be contacted as soon as possible to locate the source of the leak and repair the damaged pipe. It’s also important to notify your insurer if the damage is bad as they can guide you through the water damage insurance claim process and advise on the next steps.
Making a claim for burst pipe damage
You’ll need to contact your insurer to make a claim. When dealing with water damage insurance claims, it’s helpful to:
- Take photos of the damage as soon as possible
- Keep records of repair costs and invoices
- Document damaged equipment or stock
To help the chance of having a successful escape of water insurance claim in the UK, you need to claim under your building insurance policy. Make sure you notify them as soon as possible so they can get the wheels in motion Insurers will typically assess the cause of the damage and confirm whether it is covered under your policy. Claims are assessed by insurers based on the terms, conditions and exclusions set out in the policy.
Compare business insurance quotes with Bionic
If you’re an SME owner, understanding how to protect your business against burst pipes is essential to ensure you have the right cover. At Bionic, we work with a panel of insurers and can help you compare business insurance options. Get in touch today or compare business insurance online, including commercial property insurance, by starting a quote today.
FAQS
What causes burst pipes in UK businesses?
Burst pipes in UK businesses are most commonly caused by freezing temperatures, poor insulation, ageing pipework and sudden changes in water pressure. But they can also burst in the summer months, especially when there is a change in temperature.
Does business insurance cover burst pipes?
Business insurance may cover burst pipes if the damage is sudden and unexpected, depending on your buildings insurance policy terms and exclusions.
Is water damage insurance available?
Water damage insurance isn’t really a thing. Escape of water is an insured event that could be covered on your policy. You should check this yourself, it may come under building insurance but can also extend to stock and contents to help cover, not only the building itself, but also your stock and equipment.
Is water damage covered by business insurance in the UK?
Water damage is often covered under UK building insurance when caused by insured events like burst pipes, but not typically for gradual leaks or poor maintenance.
