Peril-Specific Excesses And Why Some Losses Cost More

A home policy rarely carries one excess. Certain perils attract their own, much larger figure, and the reason lies in how those claims behave rather than how serious they are.

Three kinds of excess sit on one policy

The compulsory excess is set by the insurer and cannot be removed. A voluntary excess is chosen by the policyholder in exchange for a lower premium.

On top of both sits the peril-specific excess, which applies only when the claim arises from a named cause. It replaces rather than adds to the compulsory figure in most wordings.

Which one applies is determined by the cause of the loss, so the amount deducted is not known until the peril has been established.

Subsidence is the clearest example

Ground movement claims are long, technical and expensive, involving monitoring, engineering investigation and often underpinning. Small subsidence claims are rare because investigation alone consumes a large sum.

A high excess removes minor cracking claims from the system entirely, which is the point. The insurer is not discouraging genuine claims so much as excluding trivial ones.

It also reflects that a property which moves once tends to move again, so the exposure is repeated rather than one-off.

Escape of water and flood follow the same logic

Escape of water is one of the most frequent household perils, and the damage spreads far beyond the failed pipe. Frequency rather than severity drives the loading.

Flood claims cluster, meaning many properties are damaged simultaneously by one event. That concentration is what makes the peril difficult to spread across a book of policies.

Where flood cover is provided through a statutory or industry pooling arrangement, the excess may be fixed by that scheme rather than by the insurer.

The excess as an underwriting tool

Raising a peril-specific excess is often the alternative to declining a risk. It allows an insurer to keep covering a property that would otherwise fall outside appetite.

That is why an excess can appear or grow at renewal without any claim being made, following a reassessment of flood mapping or ground conditions.

Accepting a higher figure on a peril unlikely to occur at a particular property is a rational trade. Accepting it on the property's most likely loss is not.

Reading the schedule properly

Excesses are listed on the schedule rather than in the wording, and the peril-specific ones are easy to overlook because they sit below the headline figure.

Whether excesses are cumulative across sections in a single event is a wording question with a real financial consequence. It should be checked before it is tested.

Excess structures, peril definitions and pooling arrangements vary by insurer and jurisdiction and are revised at renewal. The schedule in force governs what is deducted.