Why do insurance companies not cover mold?
Short answer. Insurers exclude most mold because it usually grows from long term moisture, humidity or neglected leaks, which they treat as maintenance rather than sudden accidental loss. After a wave of costly mold claims and lawsuits in the early 2000s, most policies added mold exclusions or small sublimits. Mold that results from a covered, promptly reported water loss is often still covered up to a limit.
Why mold is treated as maintenance
- It takes time. Mold needs moisture over days or weeks. A home that grows mold usually had water present longer than a single sudden event.
- It is preventable. Drying wet materials quickly, fixing leaks and controlling humidity stop most mold.
- Costs are unpredictable. Remediation can range from a small wipe down to gutting rooms, and health related disputes made claims hard to price.
The exception that matters
When mold follows a covered sudden water loss, such as a storm tearing open the roof or a supply line bursting, many policies pay for the mold damage, often subject to a separate dollar limit. The condition is usually that you reported the water damage promptly and took reasonable steps to dry it.
Mold that is almost never covered
- Attic mold from poor ventilation or bathroom fans venting into the attic
- Mold from Georgia's summer humidity in crawlspaces
- Mold around a roof leak that dripped for months
How to stay on the covered side
Act fast after any leak: tarp the roof, start drying within a day, photograph everything and report it. The faster the response, the stronger the argument that any mold is part of a covered sudden loss. See emergency tarping and interior water damage coverage.