Sinkhole Insurance: Who Needs it and What Does it Cover?

Many companies do provide sinkhole insurance, commonly known as sinkhole loss coverage. In some instances, sinkholes may also be covered by catastrophic ground collapse, an insurance variant for earth movement that causes specific kinds of damage. Although sinkholes can be catastrophic to real estate and personal property, they are one of the more difficult events for homeowners to find insurance coverage for.

Sinkholes tend to get excluded by standard home insurance policies, as they're difficult to predict and expensive to insure. Compounding this difficulty is that once land has collapsed due to a sinkhole, insurers can discontinue underwriting coverage for that area.

Are sinkholes covered by insurance?

Many major insurance companies, such as Nationwide, Travelers and USAA, offer sinkhole endorsements in high-risk areas. However, coverage may be limited to events caused by previous mining operations. Nationwide and Travelers, for example, exclude naturally occurring sinkholes from coverage.

Local companies may also offer sinkhole insurance to at-risk communities. For example, Florida homeowners can get sinkhole insurance from the smaller Citizens Property Insurance Corp. This insurer issues policies that cover damage and losses due to sinkholes caused by natural phenomena.

Before you can get sinkhole insurance, the company will likely order a geological survey of your property. The insurance provider does this to make sure there is no obvious risk of a sinkhole collapse. The customer is usually responsible for the cost of the survey.

There are similarities between earthquake insurance and sinkhole insurance. Like earthquakes, sinkholes are impossible to predict, but they are more probable in some areas than others. Insurance companies price premiums based on the probability of one occurring. Sinkhole insurance, like coverage for earthquakes, is often expensive.

Sinkhole insurance and catastrophic ground collapse

Florida and Tennessee are the only two states that require homeowners insurance policies to cover catastrophic ground collapse, which covers a slightly different type of loss than sinkhole insurance. A loss that's covered by catastrophic ground collapse must meet the following criteria:

A sinkhole could fail to meet one or more of these criteria and still be financially devastating. A sinkhole may affect your foundation, but unless your home is condemned, catastrophic ground collapse coverage will not activate.

Is sinkhole insurance worth it?

In some Florida counties, for example, the annual premium for sinkhole loss coverage can exceed the average cost of a homeowners insurance policy in the state. Consult a professional study or the history of your area to judge the probability of a future sinkhole.

For properties in areas where sinkholes are unlikely to occur, homeowners might choose to forgo coverage. Though it's hard to know exactly when and where sinkholes will happen, the Insurance Information Institute says there's only about a 1 in 100 chance of sinkholes affecting a given property each year.