With hot summers, flood events and weather volatility increasingly becoming an enduring challenge rather than the exception, UK property insurers are facing a growing convergence of risks that could drive property claims inflation to as high as 5% in 2026, according to Keoghs. While property claims inflation reached 3.8% last year, extreme weather, subsidence, supply chain disruption, labour shortages, regulatory delays and emerging technology risks are combining to create a "perfect storm" that threatens to increase claim costs, extend repair times and place further pressure on insurer profitability.
Extreme weather events are increasingly becoming part of the "new normal" for property insurers, with weather-related losses now among the fastest-growing areas of exposure. Severe weather events are now recurring features of the claims landscape, driven in part by changing climate conditions.
The developing El Niño event is set to be the strongest in living memory according to the Met Office, placing the UK at greater risk of a wet, stormy, autumn/winter with 2027 set to become the world’s hottest year on record.
These conditions will have direct implications for claim volumes, repair costs and insurer sustainability in an ever-increasing soft market. For insurers, flooding and subsidence are no longer isolated events but increasingly predictable drivers of claims frequency and severity. This shift is forcing carriers to reconsider claims preparedness, surge response strategies and long-term property risk management.
Flooding remains a significant challenge, particularly as new developments continue to be built in areas that could be more exposed to surface water flooding following the enactment of the Planning and Infrastructure Act 2025. Whilst greater emphasis is placed on sustainable drainage systems and stricter obligations for developers, public investment in flood defence remains under pressure as we move towards Flood Re ending in 2039.
Insurers are also seeing record levels of subsidence claims, driven in part by prolonged periods of hot, dry weather causing volumetric changes in clay soils leading to property damage. With summer 2026 on course to become the UK's hottest on record, weather-related subsidence losses are increasingly moving from exceptional events to recurring exposures that insurers must plan for. As surge and semi-surge years become more common, insurers may need to rethink established claims response models, placing greater emphasis on early intervention, resilience planning and collaboration between stakeholders to control costs and improve customer outcomes.
Large, high-profile subsidence claims linked to tree roots are also becoming increasingly common, particularly among older properties across London and South-East England. These claims are often complex and attract considerable public scrutiny because of the involvement of mature or historic trees. While underpinning and other engineering solutions may provide a remedy, they are frequently expensive and can introduce additional environmental considerations. As a result, both insurers and local authorities are facing increasingly difficult decisions when balancing remediation costs, environmental impacts and customer outcomes.
The rapid adoption of new technologies is creating additional sources of property risk that insurers must now consider within underwriting, risk assessment and claims handling processes.
One emerging risk area is plug-in solar technology, with plug-in solar panels set to become available in the UK from 27 August 2026. As consumers seek to offset energy costs and take advantage of hotter summers, uptake of self-installed solar systems is expected to increase following their introduction. Rather than acting as a full-home energy solution, they are designed to trim ongoing electricity consumption by supplying power to the appliances and technologies that form a home's constant energy demand.
While the technology offers clear benefits, it also introduces new challenges where systems are poorly installed or connected to ageing electrical infrastructure. The new regulations do not include plug-in battery storage, which presents an increased risk of consumers buying unsuitable products from online retailers without appreciating the limits of the overarching legal framework. With legislation expected to support wider adoption later this year, insurers may need to prepare for a new category of property and fire-related claims.
Regulatory pressure is emerging as another important driver of claims inflation, with stricter compliance requirements creating additional complexity for insurers. Claims involving the Building Safety Regulator in particular can be delayed by capacity constraints and administrative processes, preventing repair works from progressing and extending claim lifecycles.
As repair timelines lengthen, insurers face increasing indemnity costs, higher alternative accommodation expenses and growing operational pressure within claims functions. These challenges are compounded by wider supply chain disruption and skilled labour shortages, which continue to make repairs more difficult and expensive to complete.
The construction sector has experienced a decline in available labour since 2020, while material prices have risen significantly over the same period, creating challenges for contractors and reducing certainty around repair costs. Together, these factors are creating inflationary pressure throughout the entire claims process, from first notification of loss through to final settlement.
Property claims inflation is increasingly being shaped by the interaction of multiple pressures rather than a single market trend. Extreme weather, flooding, subsidence, labour shortages, rising repair costs, regulatory delays and emerging technology risks all have the potential to compound one another, creating a more volatile and costly claims environment.
However, insurers are not powerless in the face of these challenges. Those that invest in resilience, strengthen supplier relationships, improve surge planning, embrace earlier intervention on complex claims and work collaboratively with regulators, contractors and local authorities will be best positioned to manage future cost escalation.
The future of property claims will be determined not only by the risks insurers face, but by how effectively the market adapts to them. Insurers that prioritise proactive claims management, operational resilience and customer outcomes will be better placed to control costs, maintain service standards and navigate an increasingly complex risk landscape.
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