Driveway Looking Sunken? A Few Ways To Raise It Back Into Place

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A sunken concrete slab in your driveway can be a major annoyance, and can even pose a safety risk if left untreated. However, there are several methods for raising a sunken concrete slab in your driveway.

Here are four of the methods for driveway sunken concrete slab raising.


Mudjacking is a common method for raising sunken concrete slabs, including driveways. This process involves drilling small holes in the concrete slab and injecting a mixture of cement, water, and sand into the holes. The mixture fills the voids beneath the slab and raises it to its original position. This method is effective for small to medium-sized sunken slabs and is a cost-effective alternative to completely replacing the concrete.

Polyurethane Foam Injection

Polyurethane foam injection is another method for raising sunken concrete slabs. This process involves injecting a high-density polyurethane foam into the voids beneath the slab, which expands and fills the gaps, lifting the concrete back into place. This method is ideal for smaller slabs and can be completed in a matter of hours. Polyurethane foam injection is also environmentally friendly, as the foam is made from recycled materials.

Slab Jacking

Slab jacking is a method that involves lifting sunken concrete slabs by pumping grout under the slab. A small hole is drilled into the slab, and a hydraulic pump is used to force the grout under the slab, which lifts it back into place. This method is ideal for larger slabs and can be used for driveways, patios, and sidewalks. Slab jacking can also be used to fix uneven surfaces and prevent further damage to the concrete.

Concrete Replacement

In some cases, the sunken concrete slab in your driveway may be too damaged or too large to repair using any of the methods mentioned above. In this case, concrete replacement may be the best option. This involves removing the existing concrete slab and pouring a new one in its place. This method is more expensive than the others, but it ensures that the driveway will be level and structurally sound for many years to come.

If you have a sunken concrete slab in your driveway, it's important to address the issue promptly to prevent further damage and potential safety hazards. The methods mentioned above are all effective solutions for raising sunken concrete slabs. Mudjacking, polyurethane foam injection, slab jacking, and concrete replacement can all be used to level your driveway and prevent further damage.

Contact a professional concrete repair contractor to determine which method is best for your specific situation.