Contact details of the insurer
In ... (place), on ... (date),
Registered letter with acknowledgement of receipt
Subject : Declaration of water damage
Owner (or tenant) of an apartment (or a house) located at ... (complete address), I would like to contact you in order to declare the occurrence of water damage in my home.
Indeed, ... (explain the situation : when the damage was discovered and how, if the origin was determined, etc...).
(Possibly:) I have also informed the syndic of my building, ... (name of the trustee) and my landlord ... (name and address).
I am at your disposal for any further information as well as for the implementation of an expertise allowing the evaluation of the damage.
I wish you good reception of the present declaration. Please accept, Madam, Sir, the expression of my best feelings.