Risk calculator
Run your building through the report's engine.
Answer three questions to see your building's water risk profile against the State of Water Risk '26 report.
- Leaks to expect, the chance of one this year and the after-hours exposure
- Backed by the operating-portfolio data in the State of Water Risk '26 report
- Every figure traced to a published source, with the method printed
- 1Building type
- 2Building size
- 3Building age
Building type
How the figures are made
The report’s rates by building type, the arithmetic behind each figure and its sources.
The profile scales the leak rates in State of Water Risk ’26 to your building’s size, then applies the shares the report publishes for its building type and its estimate of what an undetected leak costs. Every step is plain arithmetic on a published figure.
| Building type | Leaks a year | Major leaks | Leaks after hours | Est. damage if undetected |
|---|---|---|---|---|
| Multi-unit residential | 3.6 for every 100 units | About 1 in 8 | 65% | $64,200 |
| Commercial | 0.2 for every 100,000 sq ft | About 1 in 7 | 56% | $91,200 |
| Under construction | 2.56 for every 100 units | About 1 in 16 | 41% | $31,200 |
Major leaks are the ones with the most destructive potential. After hours means between 5 PM and 8 AM.
Where each figure comes from
- Leaks to expect a year
- Your units or square feet at the rate for the building type. Multi-family buildings step up 1.15 times at 15 to 30 years and 1.3 times past 30, on the low side of what the American Housing Survey shows for older homes.
- Where the rates come from
- Multi-family rates are the report’s leaks a building, across buildings that average about 100 units. Commercial rates are its leaks a sensor, at Eddy’s design density of one sensor per 4,000 sq ft. Construction rates are its leaks a site, counted so the rate leans low, across sites that average about 250 units.
- Chance of a leak this year
- The chance of at least one leak in a year at that rate, taking leaks as independent of each other.
- After-hours exposure
- The leaks that start after hours, each counted from $15,400, the average US homeowners water damage and freezing claim, up to the report’s estimated damage of an undetected leak in the building type. Daytime leaks are left out, since someone usually finds them within an hour or two.
- Floors in the 2 to 10 band
- 79% of major leaks start on floors 2 to 10, so the profile counts how many of those floors your building has.
- What monitoring changes
- Time, never a dollar figure. Unmonitored, a 2 AM leak runs 6 hrs until the 8 AM walk-through, releasing 1,800 to 2,900 gallons at 5 to 8 gallons a minute from a supply line. Aon's study of the Eddy system found it would have positively affected 58% of the water loss claims it studied and cut total water damage losses by 23%.
Sources
- State of Water Risk '26. Eddy's monitoring data, with every event verified by the Eddy monitoring center. It gives the leaks by building type and source, the after-hours shares, the average damage a leak and the floors where major leaks start.
- US Census Bureau, 2023 American Housing Survey. Leaks inside the home by building size and year built, behind the multi-family age step.
- Triple-I, from ISO data, 2019 to 2023. The average US homeowners water damage and freezing claim, $15,400, the low end of the exposure.
- Aon Real Estate Practice whitepaper. The effectiveness of water leak detection devices in commercial real estate operations, a study of the Eddy system.
- Bighorn-Desert View Water Agency leak table. What a 3/16 to 1/4 inch hole in a pipe passes at 60 psi.