What is Concrete Leveling?

Many homeowners and business owners deal with sinking concrete slabs. Whether it’s a driveway, sidewalk, porch, patio, pool deck, parking lot, interior basement floor, garage floor, or other slab, improper settlement can be remedied without the stress of a full replacement. Our Knoxville concrete leveling technicians use the PolyLevel® system, manufactured by our partners at Supportworks, to gently lift sinking concrete back to its original position and provide a long-lasting concrete leveling solution for Tennessee, north Georgia, and west North Carolina homeowners. 

Should I Repair or Replace My Concrete?

Did you know that concrete actually gets stronger as it ages? While it’s ready to use as soon as it’s fully hardened, it actually increases in its compressive strength over time, slowly getting closer and closer to its highest possible level of compressive strength year after year. For this reason, we suggest repairing concrete whenever possible. 

If your slab is dealing with severe cracking and damage—to the point where large chunks are missing or displaced—you may need to resort to a replacement. However, most driveways with long cracks and improper settling can be leveled using our PolyLevel® foundation lifting system in Knoxville. 

Concrete repair necessary on sidewalk

What Are the Signs that You Need Concrete Leveling?

When your home is no longer sitting evenly on its foundation, you will see signs from your basement walls to your roof. Foundation issues can become a big problem. Your ability to recognize that the ground has shifted and left your concrete foundation uneven will help you know when to call us for help.

Some of these signs include:

  • Porch or patio has started pulling away from your house
  • Chimney appears cracked or crooked
  • Hardwood flooring has begun to warp
  • Tile flooring has started to lift, sink, or crack
  • Walls in the home have hairline cracks, which may deepen over time
  • Exterior bricks or siding have cracked or may be misaligned

There will be more obvious signs in your basement or crawl space. Look for deep cracks in the walls and floor of your foundation. Even several small cracks can indicate a more significant issue with your foundation.

Why Is Your Foundation Uneven?

You may want to know what has caused your foundation to settle, so you can prevent it from happening again. Unfortunately, there’s not much you can do to prevent this process. Several factors can cause settling—from environmental conditions to errors made in the construction of your home.

Over time, the soil beneath your home will shift and become less compacted. This creates pockets of air that compromise the support of your foundation. 

As one part of the foundation is left unsupported, the extra stress will cause the concrete to fracture and crack. This can lead to damage throughout your home if the concrete floor of your foundation isn’t leveled.

The leveling process involves filling the air pockets in the soil with polyurethane foam. This creates a more solid surface for your foundation to ensure moisture, air, and pests won’t disturb the ground beneath your home. 

Our Concrete Leveling Process

Homeowners in Tennessee, north Georgia, and west North Carolina call our Knoxville concrete leveling team for their foundation lifing and leveling needs, because our process is fast, clean, accurate, and finished in a single day! Check out the four-step process below.

PolyLevel Injection in driveway

Step 1: Drilling Injection Holes

To inject the PolyLevel® below your sinking slab, our team will drill small, dime-sized holes into the affected concrete.

Knoxville Concrete Leveling

Step 2: Insert Ports

Specialized ports are then placed into the holes which allow us to hook up our equipment.

PolyLevel Injection in driveway

Step 3: Inject PolyLevel®

Once all the ports are ready, we’ll start pumping in PolyLevel®. The high-density polyurethane foam is lightweight, so it doesn’t add any additional stress to the supporting soil below. As it expands it hardens and begins to fold over itself to slowly lift your slab back to a level surface. Our Knoxville concrete leveling technicians will monitor this slow, controlled lift throughout the process to make sure it rises to the correct level.

PolyLevel Injection in driveway

Step 4: Remove Ports & Patch Holes

Once the slab has reached the desired height, we’ll remove the injection ports and patch the holes we made with concrete for a smooth finish. PolyLevel® cures in as little as 15 minutes and can support even the weight of semi-trucks and other large commercial equipment!

Contact American Foundation & Waterproofing

If you’re looking for a fast, affordable alternative to replacing your concrete, call the team at American Foundation & Waterproofing for a free quote today!