Slab settlement and cracks
Crack repair, foam lifting and slab piers.
Slab repair guideFoundation Repair in Kissimmee, FL
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Settlement is the usual Kissimmee story, not sinkholes
Kissimmee is the largest place in Osceola County, with 81,479 residents in the ACS 2024 5-year estimates, the quietest of the four Orlando-area counties for ground reports. The Florida Geological Survey (FGS) lists only 16 reported subsidence incidents for the whole county (statewide records as of Oct 19, 2026), against 232 in Orange. Inside Kissimmee city limits the count is about one: a 5 x 5 ft potential sinkhole logged as "actively growing" on US 192 at N Central Ave on July 30, 2025.
FGS says "the majority of the incidents have not been field-checked and the cause of subsidence is not verified." For most Kissimmee owners the questions are more ordinary: a widening slab crack, a sticking door, or water sitting against the house after a storm.
Kissimmee homes by the numbers
- Median year built: 1992 (ACS 2024 5-year), with 54.2% of homes built between 1970 and 1999, including 24.0% in the 1980s, and 35.8% built in 2000 or later.
- Renter-majority: 53.7% of occupied homes are rented and 46.3% owner-occupied; 45.9% of units are single-family detached.
- A drainage town from the start: Kissimmee was incorporated in 1883 (first named Allendale), Hamilton Disston ran his drainage operation from the town, and it sits on Lake Tohopekaliga.
Flatwoods sand, high water tables and the rainy season
Osceola County's most extensive soils are flatwoods sands such as Smyrna, Myakka and Basinger (USDA NRCS SSURGO). Smyrna's official description calls it "poorly to very poorly drained," with a water table "at depths of less than 18 inches for 1 to 4 months in most years." Shrink-swell is negligible in these sands; organic soils (muck) cover roughly 6 to 7 percent of Osceola (NRCS SSURGO).
FGS lists look-alikes for ground movement, including "organic layers which compress as water is removed" and broken drain pipes. No source ties Kissimmee problems to one cause; at a given house, that is a question for a Florida-licensed professional engineer. The 1985 regional Map Series 110 places Kissimmee in Area II (sandy cover, sinkholes "few, shallow"); that is indicative only.
At Orlando International Airport, June through September brings 29.57 in. of the 51.45 in. annual rainfall normal (NOAA 1991–2020).
Common Kissimmee requests and where to read more
Drainage and grading
Downspouts, regrading and slab-edge erosion.
Drainage guideInspections and engineer reports
A contractor's evaluation vs a PE's report.
Inspection guideLandlords should know that where no building or housing codes apply, Florida law requires them to keep "foundations, and all other structural components in good repair" (§83.51(1)(b)). This is general information, not legal advice.
Permits and licenses in Kissimmee
Inside city limits, the City of Kissimmee Permitting Division (407-518-2379) says, "For most home projects, a permit is still required." Addresses outside city limits go to Osceola County Community Development. Permit rules vary; the licensed contractor confirms and pulls any permit. Check any contractor's license number on MyFloridaLicense.com; a county business tax receipt is not a license.
We connect Orlando-area homeowners with independent Florida-licensed contractors for free, no-obligation foundation repair quotes. The contractor you choose quotes, contracts and does the work. Request a free quote, or see all service areas, including Pine Hills and Clermont.
Kissimmee foundation questions
Does Kissimmee have a lot of sinkholes?
Not by the state's records. The Florida Geological Survey lists 16 reported subsidence incidents in all of Osceola County and about one inside Kissimmee city limits, on US 192 in July 2025. FGS says most reports are never field-checked, so a crack or a dip in the yard needs a professional look before anyone calls it a sinkhole.
Do I need a permit for foundation repair in Kissimmee?
The City of Kissimmee Permitting Division says that for most home projects a permit is still required, and homes outside city limits fall under Osceola County. Permit rules vary; the licensed contractor confirms and pulls any permit. Ask whether the job needs engineer-sealed drawings.
I rent out a house in Kissimmee. What does a slab crack repair cost?
Typical national ranges from This Old House (2026), Bob Vila, HomeGuide (2026) and Angi (2026), estimates, not quotes: crack repair runs about $250 to $800 per crack, polyurethane foam lifting about $5 to $25 per square foot, and an overall foundation repair project $2,200 to $8,100. Only an on-site evaluation produces a real quote for a specific rental.
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