What Is Concrete Leveling?

American Foundation & Waterproofing concrete leveling repairs cracked, uneven, or sunken concrete without jackhammering, removing old slabs, or pouring new concrete. Typical problem areas include driveways, patios, and pool decks, where tripping hazards and standing water become an issue with cracked, uneven slabs. Our Louisville, TN, concrete leveling contractors rely on the PolyLevel® system, which stabilizes the soil beneath the slab and lifts it back into place. Property owners see faster results, minimal disruption, and a cleaner jobsite than traditional slab replacement.

Should I Repair or Replace My Concrete?

Concrete is engineered for durability and continues to strengthen long after it cures. That makes repairs a smart alternative to replacement, particularly with our lifting and leveling approach. By filling subsurface voids and gently lifting settled slabs, the process restores support, aligns slabs, limits cracking and settlement, and helps you avoid the higher expense of pouring brand-new concrete.

Some situations, such as large missing areas, deep spalling, or structural compromise, call for replacement. In the majority of cases, our concrete lifting and leveling service provides a practical, budget-friendly solution that improves safety, smooths walking surfaces, and elevates curb appeal with less mess, downtime, and expense.

Concrete repair necessary on sidewalk

Our Concrete Leveling Process

Sunken concrete can raise liability concerns and reduce property value. Our concrete leveling contractors in Louisville trust Polylevel concrete lifting, a proven process that restores surfaces quickly while protecting landscaping and surrounding areas. Most projects wrap up the same day. The four steps below outline our process.

PolyLevel Injection in driveway

Step 1: Drilling Injection Holes

Small, unobtrusive holes are drilled in key locations across the slab. These openings give direct access for injecting polyurethane foam beneath concrete slabs. 

Knoxville Concrete Leveling

Step 2: Insert Ports

Low-profile ports are placed in each hole so our delivery lines lock in securely. This ensures accurate material placement and consistent results.

PolyLevel Injection in driveway

Step 3: Inject PolyLevel®

The PolyLevel foam is injected beneath the slab. The foam expands in the voids beneath, then repositions the slab to its intended level. Its lightweight nature prevents extra soil stress, and the controlled expansion lifts and supports the concrete with remarkable accuracy.

PolyLevel Injection in driveway

Step 4: Remove Ports and Patch Holes

Ports are taken out, and every opening is covered with new concrete to blend with the surrounding surface. PolyLevel reaches service-ready strength in roughly 15 minutes, providing a long-lasting, stable repair for driveways, patios, walkways, and slab foundations.

Contact American Foundation & Waterproofing

Your property deserves smooth, secure surfaces, and our Louisville concrete leveling contractors deliver long-lasting results without the time, mess, or cost of full slab replacement. Contact American Foundation & Waterproofing today for a free inspection and estimate!

Frequently Asked Questions

What is concrete leveling?

Concrete leveling is a repair process that lifts and stabilizes sunken or uneven concrete surfaces. It’s often used on sidewalks, driveways, patios, garage floors, and other concrete slabs that have settled over time.

How does concrete leveling work?

Our technicians drill small holes into the slab and inject expanding foam material underneath to fill voids and gently lift the concrete back into place. The holes are then sealed, leaving the surface smooth and even.

How long does concrete leveling take?

Most leveling projects can be completed in just a few hours. The material hardens quickly, allowing you to walk or drive on the surface shortly after the work is done.

Is leveling better than replacing concrete?

Leveling is typically faster, less disruptive, and more cost-effective than replacing the entire slab. Replacement is usually only needed when the concrete is severely cracked or structurally damaged.

What are common signs that my concrete needs leveling?

You may need leveling if you notice uneven slabs, cracks in your driveway or patio, gaps between the concrete and your home, a chimney that appears crooked or cracked, or exterior siding or bricks that are cracked or misaligned.