Florida leads the nation in sinkhole activity. The state’s underlying geology — limestone and dolostone bedrock overlain by sandy soils — creates conditions prone to subsidence, and the damage sinkholes cause to structures can be extensive, expensive to repair, and dangerous if left unaddressed.
What Florida Law Considers a Sinkhole
Florida law defines a sinkhole as a landform created when soil, sediment, or rock collapses or subsides as the underlying limestone or dolostone dissolves due to groundwater (Fla. Stat. § 627.706).
What Your Policy Actually Covers
Here’s what many Florida property owners don’t realize: insurance companies are only required to provide coverage for catastrophic ground cover collapse — a narrow, specific event defined by law as geological activity resulting in all of the following:
- Abrupt collapse of the ground cover;
- A depression in the ground clearly visible to the naked eye;
- Structural damage to the covered building, including the foundation; and
- The structure being condemned and ordered vacated by the governing authority.
If your loss doesn’t meet all four criteria, standard coverage may not apply — even if you clearly have sinkhole damage.
The 2011 Law That Made Sinkhole Claims Harder to Win
Even if your policy includes broader sinkhole coverage beyond catastrophic ground cover collapse, Florida law changed in 2011 to add a “structural damage” requirement before insurers are obligated to pay for sinkhole-related repairs. Under Fla. Stat. § 627.706(2)(k)(1)–(5), “structural damage” means the covered building has experienced at least one of the following:
- Interior floor displacement or deflection beyond acceptable limits under ACI 117-90 or the Florida Building Code, resulting in interior damage that makes the structure unfit for use or a safety hazard;
- Foundation displacement or deflection beyond acceptable limits under ACI 318-95 or the Florida Building Code, causing structural stress that exceeds 1⅓ times the nominal strength allowed for comparable new construction;
- Listing, leaning, or buckling of exterior load-bearing walls or vertical structural members severe enough that a plumb line through the center of gravity falls outside the middle third of the base;
- Damage indicating the building — or a load-bearing portion of it — is significantly likely to imminently collapse due to ground movement or instability; or
- Damage on or after October 15, 2005 that qualifies as “substantial structural damage” under the Florida Building Code.
Why This Matters for Your Claim
If you don’t have sinkhole-specific coverage, or your damage doesn’t meet these strict legal thresholds, your insurer will likely deny the claim. Sinkhole disputes are among the most complex claims in Florida — combining detailed statutory requirements with genuine geological and geotechnical science. This complexity is exactly where insurers look for reasons to deny or underpay a valid claim.
Frequently Asked Questions
Does homeowners insurance cover sinkhole damage in Florida?
Florida property insurers are required to provide coverage for catastrophic ground cover collapse. This coverage is different from broader sinkhole-loss coverage, which insurers must make available for an additional premium.
Whether damage is covered depends on the coverage you purchased, your policy language, and the cause and extent of the damage. Florida law contains specific definitions and requirements for both sinkhole loss and catastrophic ground cover collapse. See Fla. Stat. § 627.706.
What is the difference between sinkhole coverage and catastrophic ground cover collapse?
They are separate coverages, each with its own statutory definition, and the difference can affect what your policy covers. Read our article, Sinkhole Coverage vs. Catastrophic Ground Cover Collapse.
What can I do if my insurance claim was denied?
A denial does not necessarily mean your claim is over. Insurers deny claims because they believe the damage is excluded, came from wear and tear, happened before the policy period, was reported too late, or was caused by something other than a covered event. An attorney can review the denial letter, your policy, inspection reports, estimates, photographs, and other evidence to decide whether the insurer’s decision can be challenged. Contact us or call 727.896.7777 for a free consultation.
How long do I have to file a property insurance claim in Florida?
Florida law generally requires you to notify your insurance company of a new or reopened property insurance claim within one year after the date of loss. A supplemental claim for additional loss or damage from the same peril generally must be reported within 18 months after the date of loss. See Fla. Stat. § 627.70132.
Special rules may apply in certain situations, including condominium loss-assessment claims and claims involving servicemembers deployed to a combat zone or combat-support posting. For hurricanes and certain other weather events, Florida law also has specific rules for determining the date of loss.
Your insurance policy may impose additional notice requirements, so you should report property damage to your insurer as soon as reasonably possible. Waiting to report a loss can create problems with your claim even if the statutory deadline has not yet expired.
Dealing With a Denied Sinkhole Claim?
We can help you understand how your insurer is handling it.