Compaction Grouting

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Compaction Grouting

Compaction Grouting for Sinkhole Repair & Soil Stabilization

Compaction grouting is a proven method for repairing sinkholes and stabilizing loose or weak soils beneath Florida structures. By injecting a thick grout mixture under high pressure, voids are filled, soil particles are compacted, and the limestone surface is sealed — creating a dense, stable foundation layer.

For homes, businesses, and pre-construction projects, Helicon’s compaction grouting provides permanent protection against sinkholes and settlement.

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What Is Compaction Grouting?

Compaction grouting is a soil improvement and sinkhole repair method that works by injecting a dense grout mixture into the ground. Unlike chemical grouts or foams that permeate soil, compaction grout pushes directly into loose soils, filling voids and compressing surrounding material to restore strength.

This process not only fills dangerous underground cavities but also creates a hardened grout mass that caps and seals the limestone surface, preventing water infiltration that often leads to further sinkhole activity.

How Helicon’s Compaction Grouting System Works

Injection pipes are drilled at precise angles using specialized compact drilling equipment
A dense grout mixture is injected under high pressure into voids and loose soils
Grout displaces and compacts soil, strengthening weak zones and sealing cavities in the limestone
Structural movement and injection pressures are carefully monitored during the process
Upon completion, all injection pipes are raised and removed, leaving a dense, stable foundation

Foundation RepairBuilt on TrustSince 2004!

Your Trusted Foundation Partner

Based on 316 reviews

I had a screen porch blow off during Hurricane Milton. One of the rebuilding efforts was to ensure the foundation under the wall that had supported the screen porch's attachment was secure. Helicon came and pumped in an expanding grout under the wall in question. Great job was done with precision measurements, and the area was left clean and neat. Well Done!

Rayton, Jay, Luis, Danny did a great job and left the house looking untouched. Very communicative through the installation process.

Excellent work, fast, efficient and at an affordable price. Thanks

From start to finish Helicon was patient, professional and understanding with Condo association slow deliberations. They finally months later received the approval. All the way Helicon executed a clean and neat install of remediation to soil and unstable earth around the condo. Great crew and good job. Tom

Helicon stabilized the soil behind our seawall earlier this spring. After a very wet summer, there was some new subsidence in three places along the seawall. They promptly returned, honoring their warranty, and inject additional material to reinforce the few spots that needed attention. Excellent customer service!

Jan and his team did an excellent job at our home yesterday. Our project had challenges and Jan kept up apprised and worked with us to make a decision for each section as needed. That communication led to an end result was as we expected.

The sales representative, Douglas, reviewed my home carefully, asked questions then prepared a drawing and contract. He was detailed in information and provided easily understood answers to questions. There was no pressure.

Follow up with associates was made in a timely manner by text, voice mail, and email. Tony easily answered my questions.

The techs arrived on time as scheduled. Professional, polite, focused on their tasks, respectful of neighbors and my home, treated the installation as if it were in their home.

Highly recommend Helicon!

Isaiah , Alfonzo, shelumiel, Antonio were absolutely outstanding! These guys take the job to another level! They went down till they hit rock! Totally relentless work ethic on this crew! Can recommend these guys a thousand times over - you will get only the best from this crew. Also, they were super polite and considerate! We highly recommend them and will always be grateful for the amazing experience with Helicon!!!

We are a Water Managment Special District in the state of Florida and when we started looking into repairing our outflow Dam that is responsible for 16 lakes, we took multiple bids and ended up choosing Helicon. It was a great choice! They were able to walk us through the steps of how they would be able to properly seal and help strengthen this outflow Dam that is essential to our community. Using their specialty hydrophilic foam, they were able to inject into our Dam sealing cracks and empty spaces that had eroded over time as well as pushing out water that had seeped in. they were able to accomplish this large undertaking within a day and they were able to instill a confidence in the structure that had not been there for decades. Not only would I recommend them to other government entities, companies, or individuals we are looking to work with them again in the future on the possibility of some different types of projects.

I contacted Helicon when I notice my garage floor was sinking next to the house. They responded by looking at my floor and said that chemical grout would lift and stabilize it. The crew that came to do the repair did a fantastic job!!! I would recommend this company!!!

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Advantages of Compaction Grouting with Helicon

Compaction grouting is one of the most reliable solutions for sinkhole remediation and soil stabilization in Florida’s karst geology. With Helicon’s expertise, you gain peace of mind and permanent protection.

Micropile Structural Support

Repairs Sinkholes Permanently

Fills underground voids, compacts loose soils, and caps the limestone surface to prevent future collapse.

soil stabilization for foundation repairs

Strengthens Weak or Loose Soils

Creates a dense, stable mass capable of supporting heavy structural loads.

Micropile Structural Support

Seals Against Water Infiltration

Hardened grout prevents water from seeping into bedrock joints, fissures, and cracks.

soil stabilization for foundation repairs

Delivers Long-Lasting Ground Improvement

Provides durable soil stabilization designed to support structures for decades.

Price Match Guarantee

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Common Permeation Grout Applications

Helicon’s permeation polyurethane grouting is used across Florida for both structural and environmental stabilization projects, including:

compaction grout house

Home Foundations

Stabilizes residential homes impacted by sinkhole activity or weak soils.

compaction retail 1 1 scaled

Commercial Buildings

Provides deep stabilization for offices, retail spaces, and large structures on karst ground.

Pre-Construction Projects

Strengthens soil before building to prevent settlement or sinkhole risk in future structures.

Sinkholes in Fields or Open Land

Repairs and stabilizes sinkholes before they can expand into a greater hazard.

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.

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(813) 567-1065