Water damage from the neighbor above, a crack appearing after a summer of drought, a burglary during the holidays: each incident highlights a specific line in your home insurance policy. Understanding these lines before a problem arises changes how you will be compensated, and especially the amount you will actually receive.
Natural disaster surcharge: what has changed since 2025
Have you noticed an increase on your recent premium notice? Since January 1, 2025, a decree from December 22, 2023, imposes a 20% additional CatNat contribution on nearly all premiums of the multi-risk home insurance policy. Only a few guarantees are excluded: terrorism, general civil liability, legal protection, assistance, and personal injury.
This regulatory increase is explained by the multiplication of natural disasters and the rising cost of construction materials. For the insured, the direct consequence is twofold: the annual bill rises, and the level of coverage for new reconstruction or replacement value deserves to be checked in detail.
Before comparing market offers, it is useful to consult the insurance guarantees on Immogenius to visualize what each item of your contract actually covers.
Home incidents: where do compensations really go
News articles often list the same guarantees without hierarchy. However, the actual weight of each risk varies significantly.

- Fires and similar events represent the heaviest burden in euros, even though they are less frequent than water damage.
- Water damage comes in second place with 25.9% of the total claims burden, a category that weighs heavily due to its recurrence.
- Storm, hail, and snow load guarantees account for 16.2% of the burden, with a marked increase in their cost (+22.1% over the analyzed period).
- On the other hand, the burden related to natural disasters has dropped by 53.5%, just like that of water damage (-13.4%), showing that claims vary greatly from year to year.
Why do these figures matter? Because they indicate where to focus your attention when reading the contract. A rare but costly incident deserves a high cap, while a frequent but moderate incident mainly requires a low deductible.
Drought and crack coverage: the trap of the prevention obligation
Drought causes the shrink-swell of clays, which cracks foundations and load-bearing walls. This is one of the longest incidents to handle in home insurance. And recently, an additional obstacle has arisen for homeowners.
A French court recently ruled that the owner must prove that they have taken preventive measures against cracks to obtain compensation under the natural disaster guarantee. In practical terms, an insurer can refuse to cover a cracked house if no soil maintenance, runoff management, or prior diagnosis has been carried out.
This point changes the game for homeowners in clay areas. It is no longer enough to wait for the natural disaster decree and report the incident. The contract may include exclusions related to lack of maintenance, and recent case law supports insurers who invoke them.
Expertise delays and recourse in case of blockage
Another common problem concerns the slowness of assessments. Some insurers delay in appointing an expert after a drought claim is reported, which can postpone compensation by several months. Sanctions exist, but you need to know them to enforce them. The recourse generally involves a written formal notice, followed by contacting the insurance mediator if the insurer does not respond within a reasonable time frame.

Home insurance in a condominium: the IRSI agreement and its limits
Do you live in an apartment? The IRSI agreement (Compensation and Recourse for Building Claims) regulates the management of water damage and fires among co-owners. It designates which insurer is responsible for leak detection and repairs based on the amount of the claim and the origin of the damage.
In practice, the IRSI agreement speeds up the handling of small claims but generates blockages on complex cases, especially when the leak originates from common areas. The designated “managing” insurer is not always the one for the damaged owner, which creates back-and-forth between companies.
For a co-owner, two concrete reflexes help to unblock the situation:
- Check in the contract if the “leak detection” guarantee is included or optional, as without it, detection costs remain your responsibility.
- Keep all evidence of the incident (timestamped photos, reports, written exchanges with the property manager) from the very first hours, even before reporting to the insurer.
- Send a registered letter to the property manager alongside the claim declaration, to activate the condominium’s obligations regarding common areas.
Reading a home insurance contract: three points to check before signing
The most important clauses are not those that describe the guarantees, but those that limit them. The deductible per claim, the compensation cap per room or category of goods, and the method of calculating depreciation determine what you will actually receive after a claim.
Depreciation reduces compensation proportionally to the age of the damaged property. An eight-year-old sofa will be reimbursed a fraction of its purchase price, unless the contract includes a “replacement value” or “new replacement” clause with a defined cap.
The deductible varies depending on the type of claim. A contract may show a deductible of a few hundred euros for theft and a much higher deductible for a drought claim. Comparing contracts solely based on the monthly premium amount, without looking at these two parameters, is like choosing a home without visiting the rooms.
A well-calibrated contract is neither the cheapest nor the most comprehensive on paper. It is the one whose caps, deductibles, and exclusions correspond to the actual risks of your home and your geographical area.



