Proudly serving all of Florida with offices in Tampa, Orlando, and Fort Myers

Sinkhole Repair

Sinkholes can appear suddenly, but the signs are often visible well before collapse. For over 20 years, Helicon has been Florida’s premier sinkhole repair specialist, having completed thousands of residential and commercial projects statewide. Our proven repair methods restore safety, value, and long-term stability to your property.

Florida Sinkhole Warning Signs

Early detection is key. If you notice any of these warning signs around your home or property, your soil may be unstable—possibly due to a developing sinkhole:

Underpin Foundations

Cracks in Foundation or Walls

Horizontal or stair-step cracks on interior or exterior walls may signal movement or loss of ground support beneath the foundation.

Underpin Foundations

Uneven or Sinking Floors

A shifting foundation often causes floors to become sloped, spongy, or visibly sunken in certain areas.

Underpin Foundations

Sticking Doors & Windows

If doors or windows suddenly begin to jam or won’t close properly, the building frame may be shifting due to soil movement.

Micropile Structural Support

Drywall Cracks or Ceiling Gaps

Cracks along drywall seams, or separations between walls and ceilings, can indicate settlement beneath the structure.

Micropile Structural Support

Tilting Fences or Exterior Walls

Leaning fences or buckling exterior walls are signs of uneven ground movement that may be linked to underground voids.

Underpin Foundations

Pooling Water or Sudden Depressions

Surface water that collects in new low spots—or sudden, unexplained holes in your yard—can point to subsurface soil collapse.

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Helicon
Based on 302 reviews
Great crew! Everything went as expected.
“I had an excellent experience with Helicon .Their team was professional, punctual, and very knowledgeable about foundation work. They clearly explained the process and kept me updated every step of the way.
“Excellent service! The crew was professional, on time, and did a great job with my foundation. Highly recommended.”
Prompt, courteous and thorough!
Highly recommend Helicon.
Great company to deal with! I had the pleasure of working with Doug. He assessed the situation and gave us a great solution to remedy our home that was having issues with settling. Helicon crew came out and did what they said. No sales pressure and I am very happy with the results. Time will tell but they have a great warranty. Give Doug a call! Thank you, Doug and Helicon.
I highly recommend Helicon for their services. Great job and well done!
More importantly I had a reason to call and seek some follow up service on the project. Helicon was responsive and resolved my request for additional stabilization of the soil under the drive way.
Thank you Helicon.
I was very pleased with Brett and his crew. They came out did a great job. Explained everything to me and job was done very well.
Helicon was very informative and knowledgeable. Work was performed very quickly and clean. Would highly recommend.
They have done a great job on my pool patio?
Prompt, efficient and dependable
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Sinkhole Repair Solutions from Helicon

We offer engineered solutions to permanently stabilize sinkholes and restore the integrity of your foundation. Each repair strategy is customized for your site conditions, soil composition, and property type and backed by decades of experience and robust warranties.

compaction grouting

Compaction Grouting

We inject a thick, high-strength grout mixture into underground voids. As the material is pumped under pressure it forms a bulb. The bulb grows outward, pushing the surrounding soils away, fillings gaps, densifying the soil and stabilizing the ground to prevent further movement or collapse.

soil stabilization for foundation repairs

Chemical Grouting

Ideal for finer soils, this process uses expansive, water-reactive chemical grout to bind loose particles and strengthen weak areas—ensuring soil won’t shift or erode beneath the structure.

soil stabilization for foundation repairs

Permeation Grouting

Low-viscosity polyurethane is injected to permeate and solidify porous soils. This creates a dense, durable soil matrix that resists washout and reinforces load-bearing capacity.

Micropile Structural Support

Underpinning

To provide permanent structural support, we install deep foundation elements (such as drilled-in piers or push piers) that transfer the weight of your home or building to stable load-bearing strata below the compromised soil.

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What Causes Sinkholes in Florida?

Florida is especially prone to sinkholes due to its geologic makeup and environmental factors. Here’s what typically triggers them:

  • Limestone Bedrock – Much of Florida sits on a foundation of soft limestone that slowly dissolves over time from exposure to acidic rainwater, creating underground cavities that can eventually collapse.
  • Fluctuating Water Tables – Periods of drought can reduce groundwater support, while heavy rains or flooding can overload weakened areas—both of which contribute to sinkhole formation.
  • Human Activity – Construction, well drilling, mining, and excessive groundwater pumping all disrupt the underground balance. Lowered water tables and added surface pressure increase sinkhole risk.
  • Natural Erosion – In addition to chemical erosion, flowing underground water can physically remove support materials—causing voids to grow larger until they suddenly collapse.
road sinkhole
florida sinkhole repair expert solutions

Why You Should Address Sinkholes in Florida Immediately

Sinkholes pose significant risks to both your property and safety. If left untreated, they can cause major damage to your home, garage, or even vehicles. Additionally, sinkholes can lead to foundation issues, decreasing your property’s value. It’s crucial to address sinkholes as soon as they’re detected to avoid further harm.

Where Sinkholes Happen in Florida

Sinkholes can occur anywhere in the state, but some areas are more prone than others due to underlying geology and groundwater conditions. Click the button below to view our Florida sinkhole map, which highlights regions across Florida with higher sinkhole activity, helping homeowners and property managers better understand their risk.

Request Your Free Inspection

Our Florida-based foundation experts will assess your home, identify any issues, and provide honest recommendations—at no cost and with no pressure to commit.

FREE INSPECTION REQUEST

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Sinkhole Repair FAQ

What are signs of a possible sinkhole?

Stair/step cracks, windows and doors are hard to open/close, depressions in the yard, cracks in the slab, creaking noises throughout building.

Read more about Sinkhole Warning Signs

How do I know if I have a sinkhole?
The only sure way to know you have a sinkhole is to consult with a professional. Feel free to contact us to point you in the right direction.
What causes sinkholes to form?
Sinkholes typically form in karst terrain when surface sediments collapse into underground cavities in limestone bedrock. Groundwater slowly dissolves the limestone over time, creating voids. When these cavities grow large enough, the overlying earth can no longer support the weight, causing it to collapse. Sometimes, a depression forms instead of a collapse as surface sediments gradually settle into the void.

Florida is primarily underlain by karst terrain, which includes sinkholes, caves, and springs. While not all sinkholes cause immediate damage, they can be a significant issue when they affect infrastructure. The state’s geology contains many cavities, but few collapses to cause real-world problems. There are different types of sinkholes in Florida, including solution sinkholes, cover-subsidence sinkholes, and cover-collapse sinkholes, which occur depending on the thickness of surface sediments.

How long does a sinkhole continue to grow?
Sinkholes can grow rapidly. Once a cavity is large enough, the earth above it may collapse quickly, with initial damage occurring in minutes to hours. The surrounding sediments may continue to shift for a day or more. In less dramatic cases, such as cover-subsidence sinkholes, the depression may take years to fully form.
Where can I find Florida laws related to sinkholes?
You can search Florida statutes by typing “sinkhole” into the search box on the official website. The majority of these laws are related to insurance and sinkholes, such as Florida Statute 627.706.
Is there a database of all sinkholes in Florida?
No comprehensive database of sinkholes exists, but the Florida Geological Survey (FGS) maintains a record of reported subsidence incidents. These incidents include sinkholes and similar events, though most have not been verified by professionals. The data covers incidents reported since 1954.
What is a subsidence incident?
A subsidence incident refers to depressions or ground surface settling that may resemble sinkholes but are caused by different factors. These can include issues like decomposing organic material, faulty drainage systems, or improperly compacted soil. Only professional geologists can determine whether an incident is a true sinkhole.
Where can I find information on subsidence incidents?
You can access subsidence incident reports from the Florida Department of Environmental Protection’s Map Direct website or GIS Open Data Portal.
Are there safe areas in Florida with no risk of sinkholes?
Since Florida is largely made up of carbonate rocks, sinkholes could theoretically form anywhere. However, the risk is higher in areas where limestone is closer to the surface. Properties in karst regions are more likely to experience sinkhole activity, so it’s essential to learn about the local geology when purchasing land.
What happened to the Florida Sinkhole Research Institute (FSRI)?
The FSRI was defunded in the early 1990s, and its database was transferred to the Florida Geological Survey. Today, the FGS continues to track sinkhole data and provide valuable resources about sinkhole risks in Florida.