Property · Insurance Term
Mold Exclusion (Fungi Exclusion)
Definition
A mold exclusion removes or sharply limits coverage for damage caused by mold, fungus, wet rot or bacteria. Most commercial property policies include one, often with a small limited coverage that applies only when the mold results from a covered cause like a sudden pipe burst.
In Plain English
Mold grows when moisture lingers. Insurers exclude it because it often comes from slow leaks, humidity or poor maintenance, which are not sudden accidents. The standard exclusion commonly gives back a small, separate limit when mold follows a covered loss, such as a fire sprinkler leak or burst pipe.
That limited coverage is usually modest compared to the cost of a large cleanup. Testing, removal and rebuilding walls can add up quickly in an apartment building or hotel. Mold tied to long-term leaks often falls under the wear and tear exclusion or similar exclusions as well.
Speed is your best protection. Fast drying after any water damage event reduces the chance of mold and supports your claim. Liability policies may also have their own mold exclusions for claims by tenants or guests.
Not sure how your policy handles this? Have us review it, or get a quote.
Example
Hypothetical: a pipe bursts in an empty unit of a 30-unit apartment building and is not found for a week. Water damage costs $40,000 and mold removal costs $60,000. If the policy gives back a $25,000 mold limit, the mold portion may be capped at $25,000, subject to the policy's terms.
Why It Matters for Texas Property Owners
Houston's heat and humidity can make mold grow faster after a leak, a storm or a flood. After a Texas hurricane or freeze, quick drying is often the difference between a water claim and a much larger mold problem.
What to Watch For
- Ask what mold limit, if any, your property policy gives back.
- Check whether your liability policy excludes mold claims by tenants or guests.
- Act fast on any leak: shut off water, dry the area and call a professional if needed.
- Inspect vacant units and roof areas regularly for slow leaks.
Last updated October 14, 2026 · Primesure editorial team · How We Write