Sinkhole Insurance in Florida: What Polk County Homeowners Should Know

Polk County homeowners hear the word “sinkhole” at renewal time, usually as a line on the quote with a price next to it and a choice to make. It’s one of the few coverage decisions on a Florida homeowners policy that the law hands to you, and it’s easy to decline without knowing what’s left.

Here’s how sinkhole coverage works in Florida as of October 2026: what every policy already includes, what the optional coverage adds, and what happens if you ever have to file a claim.

Why sinkholes matter in Polk County

Much of Florida sits on limestone and dolostone that slowly dissolve in groundwater. The Florida Geological Survey calls this karst terrain and says these processes are “continually taking place” across the state, with risk considerably higher where the limestone is close to the surface.

Polk County is part of that picture. A U.S. Geological Survey study of sinkholes in west-central Florida, prepared with the Southwest Florida Water Management District, mapped lines of sinkhole activity in Polk County, noted that many lakes in the region formed from sinkhole collapse, and used Lake Eloise in Winter Haven as an example. Sinkhole lakes are common along ridge areas like the Lake Wales Ridge.

That doesn’t mean a given home in Lakeland, Winter Haven or Lake Wales will have a problem. It does mean the sinkhole line on your quote deserves an actual decision.

What every Florida homeowners policy already covers

Every policy covers catastrophic ground cover collapse, and that coverage is narrow. Section 627.706, Florida Statutes, requires every insurer writing property insurance in Florida to include it, and defines it as all four of these happening together:

1. The ground cover collapses abruptly.
2. A depression in the ground is clearly visible to the naked eye.
3. The covered building, including the foundation, has structural damage.
4. The building is condemned and ordered to be vacated by a government agency.

If any one is missing, the claim doesn’t qualify. The statute also says damage that is “merely” settling or cracking of a foundation or structure is not a catastrophic ground cover collapse loss. A home that slowly cracks and shifts, but is never condemned, isn’t covered by this part of the policy.

What optional sinkhole loss coverage adds

Sinkhole loss coverage pays for structural damage to the home, including the foundation, caused by sinkhole activity, without requiring a collapse or a condemnation order. Under section 627.706, insurers must make it available “for an appropriate additional premium.”

The statute defines structural damage as any one of these:

• Interior floor displacement or deflection beyond acceptable variances
• Foundation displacement or deflection beyond acceptable variances
• Listing, leaning or buckling of the exterior load-bearing walls
• Damage that makes the building significantly likely to collapse imminently because of ground movement
• Damage that qualifies as “substantial structural damage” under the Florida Building Code

Contents coverage and additional living expenses apply only when the home itself has that kind of structural damage.

Side by side

An insurer may limit both coverages to the principal building as the policy defines it, so ask how your policy treats a detached garage, pool or driveway.

How the sinkhole deductible and price work

Section 627.706 lets a residential policy carry a sinkhole deductible of 1%, 2%, 5% or 10% of the dwelling limit, with a premium discount for each deductible amount. On a home insured for $300,000, a 10% sinkhole deductible means the first $30,000 of a covered sinkhole loss is yours.

Before deciding, ask for:

• The premium with and without sinkhole loss coverage
• The premium at more than one sinkhole deductible
• Whether the insurer requires an inspection first, and who pays for it
• Whether the coverage applies only to the main house

Insurers can also step back from sinkhole coverage. The statute lets an insurer nonrenew policies that carry it and offer a policy with only catastrophic ground cover collapse, with a premium credit for removing the sinkhole coverage. You must still be allowed to buy a sinkhole endorsement, subject to that insurer’s underwriting rules. When that happens, an independent agent can check whether another carrier will write the coverage for your home.

What happens if you file a sinkhole claim

Sinkhole claims follow their own rules in sections 627.706, 627.707 and 627.7073, Florida Statutes:

1. Report it within 2 years. A claim is barred unless notice reaches the insurer within 2 years after you knew or reasonably should have known of the loss.
2. The insurer inspects. It must inspect for structural damage. If there’s damage and the cause is unclear or consistent with a sinkhole, a professional engineer or professional geologist tests the site, generally at the insurer’s expense.
3. You can demand testing after a denial. If the insurer denies the claim without testing, you can demand testing in writing within 60 days. You pay half the cost, up to $2,500.
4. Repairs follow the engineer’s plan. The insurer pays to stabilize the land and building and repair the foundation as its engineer recommends, and you must make those repairs.
5. Contract within 90 days, finish within 12 months. You must sign a repair contract within 90 days after the insurer confirms coverage, and the work generally must be done within 12 months after that, with exceptions for disputes. Until the contract is signed, the insurer can limit payment to the actual cash value of the loss, excluding underground work like grouting.
6. Disputes can go to neutral evaluation. Section 627.7074 sets up a state neutral evaluation process either side can request after a sinkhole report is issued. It’s nonbinding, and the insurer pays its reasonable costs.

Once an insurer pays a sinkhole claim, it records the report with the county clerk. If you later sell, section 627.7073 requires you to tell the buyer before closing that a claim was paid and whether the full amount went to repairs. The recording isn’t a lien or a title defect.

For questions about a claim, the Florida Department of Financial Services runs a consumer helpline. Our Florida claims guide covers the rest of the process.

If you see signs of a sinkhole

The Florida Geological Survey’s advice is practical: mark and secure the hole, keep children and pets away, and stay out of a building with sinking, sagging or cracking walls. If anyone is in danger, call 911 or local law enforcement. Then call your insurer and report it right away.

No state agency inspects sinkholes on private property. The Survey keeps a database of reported subsidence incidents, but most entries were never checked by a geologist, so a dot on that map near your home isn’t proof of a sinkhole, and no dot isn’t proof of safety.

What to have ready before you request a quote

Gather these before you call or start a quote:

1. The home’s address, year built and square footage
2. Your current declarations page, showing whether you have sinkhole loss coverage now and its deductible
3. Any past sinkhole or ground settlement claims, with dates and what was repaired
4. Engineering or geology reports, and repair records, if the home has had sinkhole work
5. Roof age, plus your wind mitigation and 4-point inspection reports if you have them
6. Your mortgage company’s name, since lenders set some coverage requirements

Our Florida homeowners insurance guide covers the rest of the policy, and you can read more about how we place homeowners insurance in Lakeland, Winter Haven and Lake Wales. A licensed agent can price your home with and without sinkhole coverage so the choice is yours to make with the numbers in front of you.