Sinkhole Loss vs. Catastrophic Ground Cover Collapse: What Florida Homeowners Should Know

Posted on by McGriff-Williams in Home Insurance, McGriff-Williams News |

From McGriff-Williams Insurance, an independent agency in Gainesville since 1983. Where confidence grows.

Like the rest of Florida, North Central Florida is underlain by limestone, usually beneath layers of sand and clay that vary in thickness from place to place. Geologists call this kind of landscape karst. The same slow process that feeds springs like Silver Springs and Rainbow Springs, rainwater gradually dissolving rock underground, also creates the voids that can lead to sinkholes, according to the Florida Geological Survey (FGS). The FGS is also clear that most people will never be affected by one.

Still, if the ground under your home does move, your policy’s wording matters. Florida’s insurance law uses two terms that sound alike but work very differently: catastrophic ground cover collapse and sinkhole loss. Here’s what each one means under Florida law, as of the 2026 statutes, and how to tell which coverage you have.

Two Coverages, Two Very Different Thresholds

Catastrophic ground cover collapse

Under section 627.706, Florida law requires admitted insurers (those licensed by the state) to include catastrophic ground cover collapse coverage in homeowners policies. Excess and surplus lines policies don’t have to include it, so check your policy (s. 626.913(4)). The definition is also narrow. All four of these must happen:

  1. The ground cover collapses abruptly.
  2. There’s a depression in the ground that’s clearly visible to the naked eye.
  3. The home has structural damage, including to the foundation.
  4. A government agency with the legal power to do so condemns the home and orders it vacated.

The law also says that damage consisting merely of settling or cracking of a foundation or building isn’t a catastrophic ground cover collapse. This coverage is built for the rare, dramatic event.

Sinkhole loss coverage

The same statute requires admitted insurers to make available, for an appropriate additional premium, coverage for sinkhole loss. That means structural damage to the home, including the foundation, caused by sinkhole activity. “Structural damage” has a detailed technical definition in the law.

  • The insurer may require an inspection before it adds sinkhole coverage.
  • Residential policies may carry a separate sinkhole deductible of 1%, 2%, 5% or 10% of the dwelling limit (s. 627.706(1)(b)). Your policy shows which deductible applies.
  • Insurers may limit both coverages to the principal building, as the policy defines it. That means other structures on your property, such as a detached garage, pool or screen enclosure, may not be covered. Check your policy’s wording.

How to Tell Which One You Have

If your policy is from an admitted insurer and excludes sinkhole loss, Florida law requires the insurer to tell you in bold type of at least 14 points, with this notice:

“YOUR POLICY PROVIDES COVERAGE FOR A CATASTROPHIC GROUND COVER COLLAPSE THAT RESULTS IN THE PROPERTY BEING CONDEMNED AND UNINHABITABLE. OTHERWISE, YOUR POLICY DOES NOT PROVIDE COVERAGE FOR SINKHOLE LOSSES. YOU MAY PURCHASE ADDITIONAL COVERAGE FOR SINKHOLE LOSSES FOR AN ADDITIONAL PREMIUM.”

If you see that notice, or don’t see a sinkhole endorsement on your declarations page, a policy from an admitted insurer likely covers only catastrophic ground cover collapse. A surplus lines policy may not include ground cover collapse coverage at all, so check its terms. Not sure? We can read it with you.

Not Every Dip or Crack Is a Sinkhole

The FGS notes that a reported depression often isn’t verified as a true sinkhole. Other causes can look similar, including compressing clay layers, buried debris, broken pipes or septic tanks, and poorly compacted soil, according to its Sinkhole FAQ. The FGS also says home inspectors and insurance adjusters aren’t trained to determine whether a sinkhole is present; licensed professional geologists or engineers are the ones trained to recognize possible sinkhole activity.

That matters for insurance, because many policies don’t cover settling from other causes.

If You Notice Signs of Ground Movement

The FGS suggests a few common-sense steps if a hole appears near your home:

  • Stay safe. Mark the area and keep children and pets away. If walls are sinking, sagging or cracking, stay out of the building. If anyone is in danger, call 911.
  • Don’t put water in the hole. It can make it bigger.
  • Call your insurance company right away, and report the incident to the FGS for its research database.

On the insurance side, for policies from licensed Florida insurers, state law sets out how a sinkhole claim works:

  • Report it promptly. A sinkhole claim is barred unless notice is given under the policy’s terms within 2 years after you knew or reasonably should have known about the loss (s. 627.706(5)).
  • The insurer inspects first. If it finds structural damage that may be sinkhole-related, and sinkhole loss is covered, it hires a professional engineer or geologist to test and report (s. 627.707).
  • You can ask for testing. If your policy includes sinkhole loss coverage and the insurer denies your claim without testing, you can demand testing in writing within 60 days after you receive the denial. You pay half the cost or $2,500, whichever is less, and the insurer reimburses you if its engineer or geologist certifies a sinkhole loss.
  • Repairs follow the engineer’s plan. If a sinkhole loss is verified, the insurer pays to stabilize the land and building and repair the foundation as its engineer recommends, subject to your policy’s terms and deductible, and the repairs must follow that plan. Until you sign a repair contract, the insurer may limit payment to the actual cash value of the damage, which doesn’t include work below the foundation such as grouting or underpinning. You need to sign a stabilization and foundation repair contract within 90 days after the insurer confirms coverage and notifies you. That deadline pauses if either side requests neutral evaluation. After that, the insurer pays as the work is done, can’t require you to pay up front, and the repairs generally must be finished within 12 months.
  • If you disagree, ask about neutral evaluation. Once a sinkhole report has been issued, either you or the insurer can request neutral evaluation through the Florida Department of Financial Services. A state-certified engineer or geologist reviews the cause of the damage and the repair method and cost. The recommendation isn’t binding, but the insurer must take part if you request it, and the insurer pays the reasonable costs (s. 627.7074).
  • Never accept a rebate from a repair contractor. Under the law, it voids your coverage, and you’d have to pay the rebate back to the insurer (s. 627.707(5)(f)).

Buying a Home in Our Area?

If the insurer paid a seller’s sinkhole claim, the seller must tell the buyer before closing that a claim was paid and whether all of the money went to repairs (s. 627.7073(2)(c)). Ask about past claims and repairs early, and talk with us before you close. Paid sinkhole claims are recorded with the county clerk, and insurers may inspect the home and apply their own underwriting guidelines before offering sinkhole loss coverage. A past claim or repair can affect which options are available. Marion County buyers can also see our Marion County sinkhole guide.

Questions to Ask at Your Next Review

  • If I add sinkhole coverage, will the insurer require an inspection, and what deductible would apply in dollars?
  • Is coverage limited to my main house, and what about my detached garage, pool or other structures?
  • Is my policy from a licensed (admitted) insurer or a surplus lines insurer? Florida’s sinkhole and ground cover collapse rules in Chapter 627 generally don’t apply to surplus lines policies unless the law specifically says so, so coverage and the claim process depend on that policy’s own terms.

How McGriff-Williams Can Help

As an independent agency, we can compare options from multiple insurance companies and explain how each handles sinkhole coverage, deductibles and inspections. We can’t tell you whether ground movement is a sinkhole. Under Florida law, that’s determined by testing from a professional engineer or geologist. But we can help you understand your policy before you need it.

Frequently Asked Questions

Does my homeowners policy cover sinkholes?
Policies from admitted Florida insurers (those licensed by the state) must cover catastrophic ground cover collapse, which is narrow: the home has to be condemned and ordered vacated. Excess and surplus lines policies don’t have to include it, so check your policy. Broader sinkhole loss coverage is optional and costs extra.

Can I add sinkhole coverage to my policy?
Admitted insurers must make it available for an additional premium, but they may require an inspection first, and they apply their own underwriting guidelines.

Talk With Us

Not sure what your policy says about sinkholes? Call us at (352) 371-7977 or request a quote.

General information, not legal, engineering or coverage advice. Coverage depends on the policy issued, its terms and underwriting. Statute summaries reflect the 2026 Florida Statutes as of October 19, 2026, and laws can change. Information current as of October 2026.