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Sinking & Settling Concrete Floor Slab Repair in Greater Columbus

diagram of a repaired concrete slab floor

Concrete slab piers being used underneath a floor to help stabilize the floor permanently.

Notice how the piers can extend deep below the floor, extending until they reach competent supporting soils.

The Problem:

Your concrete slab floor is showing signs of sinking, sagging, or settling. Your floor may be cracking, or the walls may be separating from the floor below or ceiling above.

Telltale Signs:

  • Cracks in the concrete floor
  • Floors dropping and separating from the walls, forming a gap between the floor and wall
  • Interior walls separating from the ceiling, forming a gap between the wall and ceiling
  • Walls pulling away from adjacent walls
  • Interior wall cracks, commonly off the corners of interior doors

How to Fix It:

Install a slab pier system underneath your concrete slab floor. These piers can extend down to strong supporting soils, ensuring long-term support.

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We can fix your cracked slab floors once and for all! Call us for a free floor slab repair quote today! We serve Springfield, Columbus, Mansfield, and many nearby areas in Ohio.

Signs Of Slab Settlement

When a floor slab settles, the damage can manifest itself in many ways. Along with cracks in the concrete, the floors can separate from the walls as they sink downwards. Alternatively, the interior wall may be pulled down with the floor, instead separating from the ceiling. Walls can also pull away from other walls, and interior wall cracks can form -- commonly off the corners of interior doors.

(Click each photo to enlarge.)

Slab floor cracks showing in a Washington C.H. home Large slab floor cracks in a Circleville home A floor slab separating from the wall in a Powerll home. A partition wall separating from the floor in a Mount Vernon home.
a sinking floor leaving a large gap between the wall and floor in a Pickerington home The ceiling and wall separating as the wall sinks with the slab floor in a Marietta home partition walls being pulled away from the foundation walls in a Athens home. wall cracks along a doorway in a Delaware home.

What Causes A Concrete Floor Slab To Settle?

When a concrete floor settles, it can mean serious damage to your home. The causes of floor slab settlement are almost always due to the soils underneath being unable to support the weight of the concrete. They often accompany other foundation problems in your home.

The three most common causes of settling concrete floor slabs are as follows:

(Click for more information.)

Dry, cracking clay soils

Drying/Shrinking Of Soils Under The Slab

soil erosion

Washout Of Soil Underneath The Slab

A backhoe excavating a foundation

Poor Compaction Of Foundation Fill Soils

Fortunately, there are fast, effective ways to address concrete slab floor settlement issues. if you would like a free foundation slab stabilization quote for your problem, call or e-mail us today!

Installing The Foundation Supportworks Slab Pier System

Foundation Supportworks Slab Pier System stabilizes the concrete floor slab in your home. It provides the best opportunity to relevel the floor and lift non-load bearing partition walls that may have settled along with the slab. To install our system, our contractor will take these six steps:

Coring the concrete of a concrete slab floor in Reynoldsburg

Preparing for Installation

Before the installation day, a representative from our company will have already inspected your foundation issue. At that time, a foundation repair proposal was put in writing.

Your foundation repair experts will use that proposal to map out the locations where the slab piers will be installed. At the beginning of each slab pier installation, a small hole is cored through your concrete slab floor. This hole will create an access point for the slab piers that are about to be installed.


A three piece foundation slab bracket assembled underneath a concrete slab floor.

Position Slab Bracket

To give the slab pier something to "lift," a slab bracket is positioned beneath the concrete slab.

The Foundation Supportworks Slab Pier System uses a three-piece slab bracket that is assembled underneath your concrete floor, allowing for a much smaller hole to be cored in your concrete slab. Additionally, this larger bracket reaches across more area along your floor, creating a more even distribution of weight.


Driving foundation piers into the floor in Grove City.

Install Steel Tubes

Steel tubes are hydraulically driven down through the bracket to the competent soils beneath.

These steel tubes are the real strength of the foundation pier system -- and are responsible for transferring the home weight to strong supporting soils. To prevent corrosion, Foundation Supportworks has slab piers available that are designed using galvanized steel. This ensures the quality and long-lasting strength of your slab pier system.


Using steel slab piers to transfer the weight of the concrete slab to the soil beneath in Hilliard.

Transfer Slab Weight To Soil

The weight of the concrete slab is transferred through the piers to the load-bearing strata underneath your home.

As the system lifts your concrete slab floor upwards, the sinking movement of your floor will be permanently halted. Often, it will also be possible to lift the concrete slab back to a level position.


A foundation slab pier after installation and grout injection has been completed in a Dublin home.

Inject Grout Fill

Once the concrete slab has been lifted, a void will be present underneath the removed floor.

Additionally, if your floor had been sinking because of compacted soil or washout, a gap existed even before the installation. To address this, we carefully pump grout under the slab to fill in all empty spaces.


Repairing the cored holes in the concrete slab floor with fresh concrete and cleaning up the Marion home.

The Cleanup

At Ohio Basement Authority, we take pride in leaving your home looking clean and neat. Once the installation is completed, we repair all cored holes with concrete, making your final installation virtually invisible.

Any debris generated during the installation is cleaned up and removed by us. And once we're done, you can rest easy, knowing that you have a 25-year warranty on manufacturer's defects, as well as a performance warranty from us.

What NOT To Do

As with most home repairs, some work all of the time, some work some of the time, and some don't work at all. Here are two "fixes" that we at Ohio Basement Authority do NOT recommend:

Jackhammering a slab floor in a Chillicothe home.

A concrete slab being jackhammered and removed during a floor replacement in Ironton. A typical replacement can take several weeks to complete.

Concrete Slab Replacement:

To perform a job like this, all home furnishings, all floor coverings, and interior walls within the building must be removed. Once this is done, a crew jackhammers the existing floor into small pieces and removes them by hand.

Next, a new floor is poured to replace the one removed. The homeowner should allow at least two weeks for the slab to cure sufficiently.

After the curing is complete, the interior partition walls may now be rebuilt, floor coverings may be reinstalled, and home furnishings may be returned.

While this situation is disruptive and expensive, the real problem here is that the issue that caused the problem in the first place has not been addressed.

Without addressing the soil problems that originally lead to the cracks in your concrete floor, your new floor may "break" over time too!

smoothing out the grout in a slab releveling project in Zanesville

A contractor smoothing out a surface of releveling grout during a concrete slab repair. The previous concrete floor had shown cracks during settlement.

Releveling Grout On Top Of The Slab:

To begin this process, all floor coverings that were placed on the slab must be removed. The floor is then prepared so that grout will be able to bond with the slab surface.

A self-leveling grout is poured along the slab surface, where it begins to fill in the low portion of the floor and create a level surface. After the grout is allowed to cure for several days, the floor coverings can be replaced.

However, if the floor wasn't prepared properly, the grout may not bond well to the concrete surface of the original floor slab. Over time, this may lead to large chunks of the new floor breaking off.

Additionally, the grout will add weight to the slab, potentially making the situation worse by causing further settlement.

And, just like with the last two options, the real problem of soil settlement is not addressed!

Looking For Foundation Slab Repair Contractors In OH?

At Ohio Basement Authority, we provide proven solutions for concrete slab floor leveling -- as well as other foundation repair solutions -- to homeowners throughout Ohio. We provide each of our customers with a free, no obligation slab repair quote, in writing, before any work is done. To schedule your appointment, call or e-mail us today!

Our service area includes Columbus, Springfield, Mansfield, and nearby areas such as Newark, Westerville, Zanesville, Lancaster, Marion, Dublin, Chillicothe.

 

Drying & Shrinking of the Soil Under the Slab

HVAC (Heating, Venting, and Air Conditioning) systems may be installed beneath the floor slab. Over time, the ductwork can leak air, which can dry out the soil.

As the soil dries and shrinks, gaps form under the floor slab, creating voids. Because the soil no longer supports the floor slab, the floor begins to crack and sink into the voids.

street creep symptoms in a driveway in Ironton

Washout of Soil Under the Slab

This is usually caused by plumbing leaks. If the plumbing leak is severe and there is a path for the water to flow through, it can wash soil out from under the slab.

With a void underneath the floor, there's nothing supporting the concrete slab anymore. In time, it begins to crack and sink downwards.

garage walls cracking due to street creep

Poor Compaction of Fill Soil

During construction of a new home, layers of soil are commonly moved around or spread out to get to the desired grade level. When the home is built, footings may be deepened to extend below weak fill soils and avoid a foundation settlement issue.

The slab, however, remains on the fill soils. If the fill was poorly compacted, the fill soil compresses and settles, and a void is formed under the slab. In time, the slab cracks, breaks, and settles into the void.

foundation wall cracks due to street creep in Ironton

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our service area

We serve the following areas

  • Ava
  • Barlow
  • Bartlett
  • Belle Valley
  • Belpre
  • Beverly
  • Buffalo
  • Byesville
  • Caldwell
  • Cambridge
  • Coal Run
  • Coolville
  • Cumberland
  • Cutler
  • Derwent
  • Dexter City
  • Fairview
  • Fleming
  • Graysville
  • Hockingport
  • Kimbolton
  • Kipling
  • Little Hocking
  • Long Bottom
  • Lore City
  • Lowell
  • Lower Salem
  • Macksburg
  • Marietta
  • Mcconnelsville
  • New Matamoras
  • Newport
  • Old Washington
  • Pleasant City
  • Portland
  • Quaker City
  • Racine
  • Reedsville
  • Reno
  • Salesville
  • Sarahsville
  • Senecaville
  • Stockport
  • Summerfield
  • Tuppers Plains
  • Vincent
  • Waterford
  • Watertown
  • Whipple
  • Wingett Run
Our Locations:

Ohio Basement Authority
911 Stelzer Road
Columbus, OH 43219
1-614-656-1622