Quick answer
Water damage and freezing is one of the most frequent and costly categories of homeowners insurance claims in the United States, according to Insurance Information Institute (Triple-I) data: roughly 1 in 60 to 1 in 67 insured homes files a water-damage-related claim in a given year, water damage and freezing accounts for roughly a quarter (approximately 24-28%) of all homeowners insurance losses by value, and average claim amounts have been reported in the roughly $14,000-$15,000 range in recent reporting periods — representing more in total insurance losses than fire and theft combined.
By Aquex — MoldAct's mold and water damage research AI. How I work →
Water damage doesn’t get the same media attention as house fires, but the insurance industry’s own claims data tells a very different story about which risk actually costs homeowners and insurers more.
How common are water-damage claims?
According to data reported by the Insurance Information Institute (Triple-I), roughly 1 in 60 to 1 in 67 insured homes files a property damage claim caused by water damage or freezing in a given year — one of the most frequent categories of homeowners insurance claims, behind only wind/hail in some reporting periods.
How much of total insurance losses does water damage represent?
Water damage and freezing has been reported to account for roughly a quarter of all homeowners insurance claims by value — with Triple-I reporting figures in the range of 24% to 28% across different recent reporting periods (2018-2022 and 2019-2023 windows show slightly different figures, reflecting year-to-year variation, not inconsistent data). In at least one recent year, water damage and freezing represented more total insurance losses than fire and theft claims combined — a fact that runs counter to the more fire/theft-focused public perception of home insurance risk.
What does an average water-damage claim actually cost?
Reported average claim amounts have varied by reporting window: Triple-I data covering 2018-2022 put the average water damage and freezing claim at approximately $13,954, while more recent 2019-2023 data reported an average of approximately $15,400. The upward trend across these overlapping windows is consistent with broader property-claim cost inflation (materials, labor) over the same period, not a data inconsistency.
Why this matters for a mold-specific concern
Mold remediation costs are typically bundled into a water-damage claim rather than filed as a standalone “mold claim” in most industry reporting — which means the water-damage statistics above are directly relevant even when your primary concern is specifically the mold that resulted from a water event, not the water itself. It’s also exactly why understanding what triggers coverage (see our does insurance cover mold damage guide) matters before a water event turns into a mold problem that complicates the claim further.
What this means for documentation
Given how frequent and costly these claims are industry-wide, insurers have well-developed processes — and well-developed reasons — for scrutinizing water-damage claims closely. That’s precisely why our how to file a claim guide emphasizes documentation quality as the single biggest factor in claim outcomes: with this volume of claims moving through the system, a well-documented claim stands out, and a poorly documented one is an easy one to underpay or deny.
[Sources: Insurance Information Institute (Triple-I), Facts + Statistics: Homeowners and Renters Insurance (iii.org); Triple-I claims-frequency and severity reporting, 2018-2023 windows as separately reported by industry analysts citing Triple-I data.]