What Your Homeowners Insurance Doesn't Cover
Until It's Too Late

Flood. The big one. Standard homeowners policies exclude flood damage entirely, and “flood” means any water that touches the ground before entering your home: overflowing rivers, storm surge, flash flooding, even heavy rain pooling against your foundation and coming in at grade. Roughly a quarter of flood claims come from properties outside high-risk flood zones. The only coverage is a separate flood policy, and there is typically a 30-day waiting period. You cannot buy it the week a storm is named.

Sewer and drain backup. Water that backs up through drains, toilets, or a failed sump pump is excluded from standard policies. Coverage is a cheap endorsement, often $50-150 a year for $10,000-25,000 of protection. Given that a finished basement backup routinely costs $15,000-40,000 to remediate, this is the highest-value checkbox in home insurance. Most people have never been asked.

Earth movement. Earthquakes, sinkholes, landslides, and soil settling are all excluded. Foundation damage from expansive clay soil, one of the most expensive problems a house can have, generally falls under settling and is not covered. If you are in earthquake or sinkhole territory, that is a separate policy or endorsement.

Gradual damage and wear and tear. This is the exclusion that catches the most people. Insurance covers sudden and accidental damage. It does not cover damage that developed over time: the slow drip inside a wall, the roof that leaked a little for two years, rot, corrosion, or mold that grew because moisture sat unaddressed. A burst pipe is covered; the corroded pipe that seeped for a year is not.

Mold (mostly). Mold from a covered sudden event, like that burst pipe, is usually covered, often with a low cap of $1,000-10,000. Mold from humidity, gradual leaks, or poor ventilation is not covered at all. Remediation of a serious mold problem starts around $10,000.

Roof payouts on older roofs. Many policies now pay only actual cash value on roofs past a certain age, often 15 years, not replacement cost. On a 20-year-old roof, depreciation can eat most of the payout. Some carriers will not renew policies on roofs past 20 years at all. Check which basis your policy uses; it is one line in the declarations.

Home-based business property. Business equipment, inventory, and liability are excluded or capped at a token amount, often $2,500. If clients visit your home for business, your liability coverage likely does not apply to them.

Ordinance and law upgrades. When a covered loss requires rebuilding to current code, such as new electrical standards, hurricane straps, or egress requirements, the upgrade cost is not covered unless you carry ordinance-or-law coverage. On older homes this gap can run tens of thousands.