Articles - Subsidence: Are insurers prepared for compound claims cycles

 

For 2026, market forecasts suggest national claim volumes could significantly exceed recent surge years: approximately 25-30% higher than each of 2018 and 2022, and 45% higher than 2025.

 

But notification volumes alone do not capture the more important issue: new claims are arriving while many insurers and suppliers are still managing the consequences of 2025. This marks the beginning of a compound claims cycle, rather than another self-contained influx of claims.

 

Subsidence differs from many other property claims because the claim journey is often lengthy. Investigation, monitoring, mitigation and repair can take months and often years. Even after notification volumes recede, properties may remain under monitoring while insurers seek to establish stability before permanent repairs begin.

 

The challenge in 2026 is not simply another surge. It is a surge arriving on top of existing claims activity. Many properties affected in 2025 remain within the claims lifecycle. Some are still being investigated or monitored, others have moved into mitigation or repair, and some may not yet have reached a final technical conclusion. Further dry conditions may cause additional movement before those claims are fully resolved. Insurers will therefore be managing several claim populations concurrently:

 

New 2026 notifications – claims where property movement or damage first becomes apparent during the 2026 surge

Existing claims with renewed or accelerated movement – open claims from previous years where further movement is identified during 2026

Claims under monitoring or requiring reassessment – existing claims where 2026 conditions may affect stabilisation, or require the cause, mitigation strategy or repair approach to be reconsidered

Reopened claims – previously closed claims where damage or movement has subsequently reappeared

 

The resulting operational environment cannot be understood through annual notification figures alone.

 

The industry has historically focused on first notification of loss (FNOL) volumes. Notification data remains important, but it may no longer provide the most complete measure of operational exposure. An insurer receiving fewer new notifications than a competitor could still face greater pressure if it enters the year with more open claims, more monitored properties or a higher incidence of renewed movement.

For management teams, the emphasis is increasingly shifting from: “How many new claims are we receiving?” to “How much active subsidence exposure are we carrying?”

 

Understanding the active subsidence portfolio requires more than a single count. Insurers need visibility across open prior-year claims, properties under monitoring, files showing further movement, reopened claims, average claim duration and specialist waiting times. Together, these indicators provide a more meaningful view of operational pressure than notification volumes alone.

 

This matters because duration and cost are often closely linked. Engineering reviews, monitoring regimes, arboricultural investigations, drainage assessments, supplier management and customer communications all contribute to the claim lifecycle. As claims remain open for longer, further technical and management activity can follow.

 

Consider a homeowner who reports cracking in the same part of a property several years after an earlier claim was settled. From the customer’s perspective, the original problem has returned. For the insurer, the technical reality can be more complex.

 

Returning damage may be the most challenging manifestation of a compound claims cycle. The damage may represent continuation of the original movement, renewed movement after a period of stability or a different causative mechanism. Similar cracking does not necessarily establish identical causation. The appropriate investigative approach, mitigation strategy and policy response may differ significantly depending on what is happening beneath the property.

 

Historical claims information therefore becomes an operational asset. Photographs, monitoring records, engineering reports, drainage investigations, vegetation assessments, previous causation conclusions and repair records may all be essential when assessing newly reported damage. They can help establish whether movement is genuinely new, whether earlier conclusions remain valid and whether apparent deterioration represents fresh structural movement or the reopening of repaired cosmetic defects.

 

Much of this information sits within unstructured claims data – including technical reports, correspondence and handler notes – containing insights that are not routinely captured in structured claims fields. Advances in AI-led analytics create opportunities to extract and utilise this information more effectively, helping insurers identify patterns in causation, mitigation effectiveness, claim progression and emerging trends that may otherwise remain hidden within claim files. These insights can improve future claims handling and support more informed pricing and underwriting decisions.

 

The practical governance question is whether historical subsidence information is accessible when it is needed, potentially years later. Efficient retrieval and use of technical evidence could increasingly influence customer outcomes, operational performance and profitability.

 

The cost pressure created by a larger active portfolio extends beyond conventional repair inflation. Insurers may also face “complexity inflation”: additional cost generated by longer claim lifecycles, repeat investigations, extended monitoring, renewed technical assessments and pressure on specialist resources.

 

From a claims portfolio perspective, 2026 does not necessarily require materially worse property damage to become a more expensive event than 2025. Longer lifecycles, a greater proportion of valid claims, more complex mitigation requirements and constrained specialist capacity may be enough to drive higher average claim costs.

 

Complexity inflation is the cumulative consequence of this portfolio challenge. Delays in investigation, monitoring, mitigation and repair can create additional activity, increase customer contact volumes and prolong reserve uncertainty. The industry’s biggest challenge may be operational as much as technical.

 

Aggregate supplier capacity may be only part of the answer. Engineers, arboricultural consultants, drainage specialists, monitoring providers and specialist repair contractors are not distributed evenly across the country. Overall market capacity may appear sufficient, but insurers need specialist availability in the locations where claims are arising.

 

Consecutive event years can intensify this pressure because specialists may remain committed to existing portfolios while new notifications emerge elsewhere. If demand develops in less familiar locations, insurers may face localised constraints even where headline market capacity appears adequate. Indeed, emerging 2026 experience suggests subsidence activity has expanded beyond traditional hotspots.

 

The consequences may also extend beyond subsidence. Other property perils, including escape of water and flood, may draw on some of the same specialist resources, creating a risk that pressure in one claims portfolio affects capacity available to another. In a compound claims cycle, capacity is not simply a question of scale, but of deployment.

 

Extended and uncertain claim lifecycles also affect customers. Subsidence can involve lengthy periods of investigation and monitoring before permanent repairs are possible. Surge conditions can extend those timescales as claims compete for finite specialist resources.

 

Customers want to know whether their property is safe, whether damage will worsen, whether it will be repaired and how long the process will take. Clear expectations, regular updates and transparent explanations of the investigative process are therefore part of effective claims management, particularly when the claim journey is prolonged. Effective communication can improve customer outcomes while also reducing avoidable contact, complaints and operational friction, helping insurers manage some of the complexity associated with extended claim lifecycles.

 

When faced with consecutive subsidence surge years, an enhanced operational focus for property insurers is key to sustaining profitability. The immediate questions are: