A subsidence claim in the UK now costs £20,000 on average.
That is the latest figure reported from Association of British Insurers data for the second quarter of 2026. Insurers paid out £72 million for domestic subsidence claims between April and June – with the average claim more than £2,000 higher than during the same period last year.
The rise has been linked to prolonged hot and dry weather. When clay soil loses moisture, it can shrink and move. That movement may affect the foundations of a property, leading to cracks, sticking doors and, in more serious cases, extensive structural damage.
For some homeowners, the issue is more than an untidy line in the plaster. Cracks can spread through walls, repairs can take months and properties may become difficult to sell or mortgage while the problem is investigated. A few homeowners caught up in the recent news have described homes left severely damaged or effectively irreparable.
It is understandable to feel concerned. But there are sensible steps you can take now – starting with checking whether your home insurance reflects the cost of putting your property right.
What is subsidence?
Subsidence happens when the ground beneath a building moves downwards or shifts, causing the property above it to move too.
In many parts of England, the main concern is shrinkable clay soil. During a long dry spell, the soil can lose water and contract. Trees and large shrubs may increase the effect by drawing additional moisture from the ground.
Subsidence can also be linked to leaking drains, damaged water pipes or poorly compacted ground. So, a crack does not automatically mean your home is sinking. Settlement, weather-related movement and ordinary wear can produce similar signs.
That is why an expert assessment matters. Filling a crack and hoping it goes away may only hide useful evidence – a little like putting a cushion over a suspicious stain before a house viewing.
Why costs are rising
The record £20,000 average claim does not mean every subsidence repair will cost that much. Some cases may be resolved with drainage repairs, tree management or localised building work. Others can involve extensive structural repairs or underpinning.
The final cost may include:
- Investigating the cause of the movement
- Monitoring cracks over time
- Repairing drains or underground pipes
- Managing nearby trees and roots
- Stabilising foundations
- Rebuilding damaged walls, floors or finishes
- Replacing fixtures and contents affected by the work
- Providing alternative accommodation during major repairs
Building materials, labour and specialist engineering work have all become more expensive. And when the damage affects an older, unusual or high-specification property, repair costs can quickly move beyond the assumptions used for a standard home policy.
This is where the right level of cover becomes particularly important.
Check your rebuild cost
The amount your home could sell for is not the same as its rebuild cost.
Buildings insurance should generally be based on what it would cost to rebuild the property, including suitable materials, labour, professional fees and the cost of clearing the site. The market value may include the land and location, so it is not a reliable figure for setting your buildings sum insured.
Your rebuild cost may have changed if you have:
- Extended or renovated the property
- Added a basement, conservatory or outbuilding
- Installed specialist kitchens or bathrooms
- Used unusual materials or construction methods
- Added features such as retaining walls, gates or a swimming pool
- Bought a period, listed or non-standard property
- Seen local building costs rise since your last valuation
A standard online estimate may not be enough for a large or unusual home. If your property has a high rebuild value, it is worth arranging a professional assessment and keeping the result with your insurance documents.
Review the figure at renewal, too. Do not assume that last year’s sum insured will remain suitable indefinitely.
Avoid being underinsured
Underinsurance can cause problems even when you have a valid claim.
For example, if your property is insured for significantly less than its actual rebuild cost, the insurer may reduce the amount paid under the policy’s average or underinsurance provision. The exact approach depends on the policy wording, but the result could leave you contributing more towards repairs.
Imagine that your true rebuild cost is £800,000, but your buildings cover is set at £600,000. A claim is not necessarily limited neatly to £600,000. Depending on the policy terms, the settlement could be reduced to reflect the proportion of the property that was insured.
This is why checking your sums insured is not just an administrative exercise. It can make a substantial difference when repair bills are already measured in five figures.
T&R Direct’s buildings and contents insurance information explains the difference between buildings cover and contents cover, including why buildings insurance should be based on reinstatement cost rather than market value.
Look for early signs
It is worth keeping an eye on your property, particularly after a long period of dry weather.
Possible signs of subsidence include:
- New diagonal cracks around doors and windows
- Cracks that are wider at the top than the bottom
- Cracks that appear to be getting longer or wider
- Doors or windows that suddenly start sticking
- Gaps where walls meet ceilings or skirting boards
- Sloping floors or new unevenness
- Wallpaper tearing or separating
- Cracks appearing on both internal and external walls
A crack wider than a 10p coin may deserve particular attention, although size alone does not confirm subsidence. The location, direction and pattern of the crack are also important.
Take dated photographs and make a simple note of any changes. Avoid making cosmetic repairs until you have spoken to your insurer or received appropriate advice. Your insurer may want to inspect the damage and arrange monitoring before deciding on the correct solution.
And remember: a single hairline crack is often not a structural emergency. If you are unsure, a calm conversation with your insurer is a sensible first step.
Consider high value cover
A standard policy may be suitable for many homes. But higher-value properties can have more complicated needs.
You may want to explore high value home insurance if you own a property with a high rebuild cost, expensive renovations, non-standard construction or valuable features. A specialist policy may be better placed to consider the property as a whole rather than applying limits designed for a typical home.
High net worth home insurance can also be relevant where you have multiple properties, fine art, jewellery, antiques, collections or other valuable possessions. The important point is not simply the price of your home. It is the cost and complexity of restoring it – and replacing everything inside – after a major loss.
Review your contents
Subsidence is mainly associated with buildings damage, but major repair work can affect your contents, too.
Furniture may need to be moved into storage. Flooring, fitted units and decorative finishes may be damaged during structural work. If you have valuable items in the affected rooms, check how your policy treats them.
Review:
- Your total contents sum insured
- The single-item limit for jewellery, art and antiques
- Whether valuable items need to be specified individually
- Whether cover is based on new-for-old replacement
- Storage and alternative accommodation arrangements
- Any exclusions or limits applying during building work
High value contents insurance may be appropriate if your possessions would cost considerably more to replace than a standard policy limit allows. It can also help where you own items that are difficult to value, such as collections, heirlooms or specialist equipment.
T&R Direct’s guide to what to itemise in the home explains why some items need to be listed separately and why replacement cost is usually more relevant than second-hand sale value.
Keep photographs, receipts, valuations and serial numbers where possible. Store copies somewhere safe – ideally away from the property or in secure digital storage.
Check the excess
Subsidence claims can carry a higher excess than other types of home claim. Your policy schedule should show the compulsory excess, along with any voluntary excess you have chosen.
Before making changes, check that you could comfortably pay the amount if you needed to claim. Increasing the voluntary excess may reduce your premium, but it also means taking on more of the cost yourself.
T&R Direct also offers home excess insurance, which may help protect against eligible excess payments, subject to the separate policy terms, limits and exclusions.
What should you do now?
You do not need to panic because the average claim has reached £20,000. But it is a useful prompt to review your cover while there is no claim to deal with.
A practical check could include:
- Review your buildings sum insured and confirm it reflects the current rebuild cost.
- Consider a professional assessment if your home is high value, extended or non-standard.
- Check your contents total and single-item limits.
- Update valuations for jewellery, art, antiques and collections.
- Look for new or worsening cracks, sticking doors and uneven floors.
- Photograph and record any changes.
- Contact your insurer promptly if you suspect structural movement.
- Read your policy schedule so you know the subsidence excess and key conditions.
The latest ABI figures show that subsidence repairs are becoming more expensive. The good news is that early action, accurate sums insured and suitable advice can make the situation easier to manage.
If you are concerned that a standard policy no longer reflects your property or belongings, T&R Direct can help you compare options from a panel of leading UK insurers – including cover for standard homes, high value properties and high value contents.
Get in touch with T&R Direct to discuss your requirements. Cover is subject to the insurer’s terms, conditions, limits and exclusions.
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