Uneven Concrete Slabs

Q: What if my concrete slab looks uneven but not severely damaged?

If your concrete slab is uneven but not severely cracked, experts at LUX will first inspect the area to confirm the cause of movement. For mild to moderate sinking, we use polyurethane foam injection to level a concrete slab by filling hidden voids beneath the surface. This method is fast, clean, and ideal for fixing uneven concrete in Florida’s sandy, moisture-prone soil.

Q: What if my concrete slab keeps sinking after heavy rain?

Continuous sinking after rainfall often means unstable or washed-out soil below the slab. LUX installs slab piers , deep foundation supports designed to stabilize and lift settled concrete. These steel piers transfer weight to solid ground beneath weak soil, preventing further movement and providing permanent structural support—especially in Florida’s high-water-table areas.

Q: How can I stop small cracks from turning into major damage?

If cracks are forming but the slab hasn’t sunk, concrete caulking is an effective first step. LUX seals minor cracks with Polyflex, a high-performance silicone-based, waterproof material that prevents water intrusion, soil erosion, and further expansion. This helps maintain surface integrity and prevents small imperfections from turning into uneven or broken slabs.

Q: How do you fix an uneven concrete slab in Jacksonville, FL?

Fixing an uneven concrete slab in Jacksonville starts with identifying why it sank — often soil erosion or moisture beneath the surface. Experts at LUX level the slab using polyurethane foam injection, which lifts and stabilizes the concrete without messy demolition. This process works quickly in Florida’s sandy, moisture-heavy soil, providing a long-lasting, even surface.

Q: How to level a concrete slab outside in Gainesville, FL?

To level an outdoor concrete slab in Gainesville, you’ll need to fill voids beneath the slab caused by soil settlement or washout. LUX specialists use a foam lifting system that expands under the concrete, raising uneven sections back to grade. This method is ideal for driveways, patios, and walkways exposed to Florida’s frequent rain and humidity.

Q: Can uneven concrete slabs cause foundation damage in St. Augustine, FL?

Yes. Unlevel concrete slabs can signal soil movement beneath your foundation. In St. Augustine’s humid, sandy conditions, shifting soil can lead to cracks that spread from your slab to structural walls. Experts at LUX assess both the slab and foundation to prevent further settling and protect your home’s stability.

Q: How much does it cost to repair an uneven concrete slab in Ocala, FL?

Repair costs depend on slab size, damage depth, and soil conditions. In Ocala, most homeowners spend less on sealing than on foam injection leveling. LUX provides free estimates , helping you choose a long-lasting, cost-effective solution for Florida’s soil and climate.

Q: Who fixes uneven concrete slabs near Palm Coast, FL?

If your garage floor, patio, or driveway has started sinking, LUX Foundation Solutions is the trusted local expert for uneven concrete slab repair in Palm Coast and surrounding areas. Our technicians use advanced foam lifting and slab pier systems to restore level, durable surfaces built to withstand Florida’s conditions.

Don’t overlook unlevel concrete slabs — level your home’s surfaces, stop slab sinking for good.

Dealing with an uneven concrete slab around your home? Whether it’s your driveway, patio, or garage floor, uneven concrete often signals deeper issues below the surface. Learn what causes slabs to sink, how serious it can become, and how Florida experts at LUX can fix uneven concrete for good.

What is an Uneven Concrete Slab?

Uneven concrete slabs occur when soil beneath your driveway, patio, or walkway settles, erodes, or compresses over time. In Florida, sandy soil, heavy rainfall, and humidity accelerate this process, causing visible dips, cracks, or uneven transitions between slabs.

Beyond being unsightly, uneven concrete surfaces create tripping hazards and structural stress on your home.

LUX Foundation Solutions provides precise assessments and advanced slab stabilization systems — from polyurethane foam lifting to pier support — designed to permanently level your concrete slabs and prevent future settlement in Florida’s challenging soil conditions.

Schedule a free estimate

Signs of Uneven Concrete Slabs in Florida Homes

Uneven concrete slab problems often start small but worsen quickly under Florida’s climate. Watch for these warning signs:

Cracks forming between adjoining concrete slabs.
Pooling water on driveways, patios, or walkways after rain.
Sunken or raised sections creating trip hazards.
Gaps between the slab and foundation walls.
Uneven garage floors or driveways that slope or tilt.
Doors or structures nearby that are misaligned due to slab settlement.

If you’ve spotted any of these warning signs, contact LUX Foundation Solutions for a free assessment. We’ll determine what’s causing the uneven concrete and recommend the best fix for uneven concrete slabs to restore lasting stability.

Cracks Between Concrete Slabs

Pooling Water After Rain

Sunken or Raised Sections

Gaps Between Slab and Wall

Uneven Driveway or Garage Floor

Misaligned Doors or Structures

What Causes Unlevel Concrete Slabs in Florida?

Uneven slabs often result from environmental and structural factors that weaken the ground supporting your concrete. Below are the most common causes homeowners face across Florida:

Soil Erosion and Settlement

Florida’s sandy soil erodes easily after heavy rain or flooding, creating empty spaces beneath concrete slabs. As the ground shifts or settles unevenly, the slab loses support and begins to sink or tilt, leading to visible cracks and trip hazards.

Poor Drainage and Heavy Rainfall

When rainwater pools near concrete due to poor grading or clogged gutters, it repeatedly saturates the soil underneath. This ongoing water exposure softens and displaces the ground, causing the slab to settle unevenly and leading to cracking or sloping surfaces.

Tree Roots and Vegetation Growth

Large tree roots growing under or near concrete push against the slab, while decaying roots leave behind air pockets. Both processes disturb the ground’s stability, creating uneven spots or visible cracking across your concrete surfaces.

Poor Installation or Weak Concrete Mix

Improper concrete mixing or inadequate soil compaction during installation can cause early cracking and uneven settlement. In Florida’s hot, humid environment, poorly prepared concrete dries too fast, losing strength and allowing sections to shift or break apart prematurely.

Hydrostatic Pressure and Moisture Intrusion

Florida’s coastal regions and low-lying areas often experience high groundwater pressure. As water pushes upward beneath concrete slabs, it causes movement and cracking. Over time, this hydrostatic pressure leads to slab heaving, uneven surfaces, and long-term foundation strain.

Our Proven Uneven Concrete Slab Repair Solutions

Every uneven slab requires a tailored approach. The right repair depends on the severity of settlement, moisture exposure, and slab condition. LUX Foundation Solutions uses advanced, Florida-engineered techniques that lift, level, and protect your concrete for good.

Slab Piers

Expert performing polyurethane foam injection to lift sunken concrete slab and level uneven surfaces in Lake City, FL.

Concrete Lifting

Concrete Caulking

What if my concrete slab looks uneven but not severely damaged?

If your concrete slab is uneven but not severely cracked, experts at LUX will first inspect the area to confirm the cause of movement.

For mild to moderate sinking, we use polyurethane foam injection to level a concrete slab by filling hidden voids beneath the surface. This method is fast, clean, and ideal for fixing uneven concrete in Florida’s sandy, moisture-prone soil.

What if my concrete slab keeps sinking after heavy rain?

Continuous sinking after rainfall often means unstable or washed-out soil below the slab. LUX installs slab piers, deep foundation supports designed to stabilize and lift settled concrete.

These steel piers transfer weight to solid ground beneath weak soil, preventing further movement and providing permanent structural support—especially in Florida’s high-water-table areas.

How can I stop small cracks from turning into major damage?

If cracks are forming but the slab hasn’t sunk, concrete caulking is an effective first step. LUX seals minor cracks with Polyflex, a high-performance silicone-based, waterproof material that prevents water intrusion, soil erosion, and further expansion. This helps maintain surface integrity and prevents small imperfections from turning into uneven or broken slabs.

Each repair method is backed by LUX’s engineering expertise, durable materials, and long-term warranties — ensuring your concrete stays level, safe, and strong for years to come.

View more Concrete Repair Solutions

Schedule Your Free Concrete Leveling Estimate Today

Don’t wait for uneven concrete slabs to become safety hazards or damage your property value. In Florida’s sandy soil and heavy-rain conditions, even minor sinking can quickly worsen after a storm.

Our specialists offer free, no-obligation assessments to pinpoint the cause of your slab movement and recommend proven, long-lasting concrete leveling solutions.

Proudly serving Jacksonville, St. Augustine, Gainesville, Ocala, and Palm Coast, we restore your concrete’s safety, stability, and smooth finish — all backed by trusted local expertise and warranties.

Call 904-921-3589 or click below to schedule your free estimate today and keep your home level, safe, and worry-free year-round.

Request a free Estimate

Uneven Concrete Slab FAQs

How do you fix an uneven concrete slab in Jacksonville, FL?

Fixing an uneven concrete slab in Jacksonville starts with identifying why it sank — often soil erosion or moisture beneath the surface.

Experts at LUX level the slab using polyurethane foam injection, which lifts and stabilizes the concrete without messy demolition. This process works quickly in Florida’s sandy, moisture-heavy soil, providing a long-lasting, even surface.

How to level a concrete slab outside in Gainesville, FL?

To level an outdoor concrete slab in Gainesville, you’ll need to fill voids beneath the slab caused by soil settlement or washout.

LUX specialists use a foam lifting system that expands under the concrete, raising uneven sections back to grade. This method is ideal for driveways, patios, and walkways exposed to Florida’s frequent rain and humidity.

Can uneven concrete slabs cause foundation damage in St. Augustine, FL?

Yes. Unlevel concrete slabs can signal soil movement beneath your foundation. In St. Augustine’s humid, sandy conditions, shifting soil can lead to cracks that spread from your slab to structural walls.

Experts at LUX assess both the slab and foundation to prevent further settling and protect your home’s stability.

How much does it cost to repair an uneven concrete slab in Ocala, FL?

Repair costs depend on slab size, damage depth, and soil conditions. In Ocala, most homeowners spend less on sealing than on foam injection leveling.

LUX provides free estimates, helping you choose a long-lasting, cost-effective solution for Florida’s soil and climate.

Who fixes uneven concrete slabs near Palm Coast, FL?

If your garage floor, patio, or driveway has started sinking, LUX Foundation Solutions is the trusted local expert for uneven concrete slab repair in Palm Coast and surrounding areas.

Our technicians use advanced foam lifting and slab pier systems to restore level, durable surfaces built to withstand Florida’s conditions.