A letter arrives from an insurance company. A year earlier, the flexible cold-water supply hose in the man’s kitchen burst during the night. Nobody was home, the water ran for hours and flooded the flat below. The neighbours’ insurer paid for everything, the repairs are done, and now the bill is presented to the person at fault. About sixteen thousand euros.
He does not deny fault. The hose was his, the flat is his, there is nothing to argue about there. His own liability cover comes to five thousand. The rest has to come out of his pocket.
The first reaction is the same for everyone. The figure is enormous, but it did not come out of thin air: there are estimates, reports, photographs, a whole folder of documents. So it must be paid.
And this is exactly where the mistake lies, the one that costs people thousands of euros.
Why arguing about prices leads nowhere
I did not argue about prices. That is the most obvious move and the most useless one. The moment you say “too expensive”, you are told that proving the price was inflated is your burden, and the conversation ends there. That is exactly what happened, the reply came back word for word.
I took a different route. I asked the insurer for its own internal documents on this loss. Not the contractor’s estimates, but the papers the insurer itself had issued.
A guarantee letter that had expired
Among them was a guarantee letter. That is the document by which an insurer promises a contractor payment for the work. It contains three lines nobody usually looks at: the amount, the estimate number and the period of validity.
The amount in the guarantee was almost three and a half thousand lower than what the insurer ultimately paid. The difference fell on a supplementary estimate. And that supplementary estimate was drawn up two days after the guarantee had expired. No new guarantee letter was ever issued.
Then a second finding emerged. In correspondence a year old there was a letter in which the insurer itself stated the size of the loss. Thirteen thousand and change. That figure matched, to the cent, the guarantee amount plus the compensation for destroyed belongings and the rental of dehumidifiers.
Two figures, reached by different routes from different documents, matched exactly. There is nothing to say against that.
The outcome
The claim came down by roughly a fifth, more than three thousand euros. It took three letters and three weeks from the day the client came to me. Not one counter-estimate, not one independent assessor, not one court hearing. Only careful reading of someone else’s paperwork. Admittedly, that meant reading some hundred and fifty pages of documents, photographs and correspondence.
What is worth remembering
- A subrogation claim is not a verdict, it is one party’s position. It can and should be checked.
- Check the documents, not the prices. Prices are protected by the burden of proof; documents are protected by nothing.
- Ask for everything, including the insurer’s internal papers: guarantee letters, payment orders, correspondence with the contractor, the first assessment of the loss. You are entitled to them, because the money is being demanded from you.
- Compare dates, not just amounts. A document drawn up after another document’s validity has expired is always a question.
- And above all, the deadline. The insurer has years in which to bring a subrogation claim; you usually have two weeks to reply. From day one, time works against you.
Such letters arrive more often than people think. A burst hose, a tap left running, a worn washing-machine pipe: an ordinary domestic accident after which a person receives a bill the size of a year’s salary and concludes there is no way out. There almost always is one, it is simply not where people look for it.
If anyone you know has received a letter like this, forward them this text. It may save them a few thousand.
What becomes of such claims in court can be seen in the statistics of 78 decisions from 2020–2026. The analysis of claims against apartment associations is here, and the story of a fully withdrawn claim is here.