"Leak detection is too expensive" is the most expensive thing you can believe
The real cost is not the system. It is the unnoticed leak that ruins three floors and follows you to renewal. Here is how to think about leak protection as a financial decision.

The objection we hear most
"Leak detection systems are too expensive." It is the most common reason buildings put off protecting themselves, and it has the math exactly backwards. The system has a price you can see on a quote. The leak has a price you find out about later, and it is almost always bigger.
A single unnoticed leak does not stay small. It runs behind a wall, soaks through to the units below, and turns into dry-out, demolition, displaced residents and a claim. The repair is only the first bill. The premium increase that follows it can outlast the memory of the leak itself.
What expensive actually looks like
Put the two costs side by side and the comparison stops being close.
On one side is a designed leak protection system, a known number, deployed once and maintained over years. On the other side is the fully loaded cost of a major water event: the structural repair, the restoration, the lost rent while suites are uninhabitable, the resident goodwill you cannot buy back, and the insurance consequences that arrive at renewal whether or not you ever file again.
Water is the leading driver of building insurance losses, which means carriers price it aggressively. One escalated event can move you into a worse rate, a higher deductible, or a harder conversation about whether you stay insurable at all. The protection system is a fixed, predictable cost. The leak is an open-ended one.
"We have sensors" is not the same as "we are protected"
There is a second trap hiding inside the cost objection. Some buildings buy the cheapest devices they can find, check the box, and assume they are covered. Then a leak still gets through, and the conclusion becomes "leak detection does not work."
Not all leak protection is equal. A poorly designed deployment leaves gaps in exactly the high-risk, concealed places where the costly leaks start, and an alert that no one is positioned to act on at 2 AM is not protection at all. Spending a little on the wrong system can be worse than spending nothing, because it buys false confidence. The question is not whether you have sensors. It is whether you have coverage, response and proof.
How protection pays for itself
A properly designed system does not just avoid the catastrophic loss. It earns its cost back in ways you can put on a spreadsheet.
The clearest is insurance. Documented, monitored leak protection is something carriers reward, and buildings have used it to reduce deductibles substantially and to bring premiums down. When you can show an insurer a record of leaks caught and contained, you are negotiating from evidence rather than hope.
Then there are the everyday saves that never become claims. The dishwasher line caught at the source. The mechanical-room valve failure stopped overnight. None of those make the news, which is the point. Each one is a repair that stayed small and a claim that never happened, and over a year they add up to real money kept in the building's budget.
Eddy has built this view from more than 130,000 installed devices across multifamily, commercial, institutional, hospitality and construction. The pattern is consistent. The buildings that treat protection as a cost are the ones that eventually pay full price for a loss. The buildings that treat it as an investment stop having the losses.
The takeaway
Reframe the question. It is not "can we afford leak detection." It is "can we afford the leak we are currently not protected against." For most buildings, the honest answer is no, and a designed system is the cheaper side of that comparison every time.
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