What is Polyjacking and How Does It Work?

What is Polyjacking and How Does It Work?

Table of Contents

In the realm of construction and property maintenance, one of the key challenges is maintaining the stability and evenness of concrete structures. This includes areas like basement floors, garage floors, driveways, and sidewalks. Traditionally, leveling uneven concrete involved invasive and costly methods that often required extensive reconstruction. Amidst these methods, a common question arises: what is polyjacking?

Polyjacking is a groundbreaking technique that presents a more efficient and economical alternative. This innovative method is revolutionizing the way we approach the maintenance of concrete surfaces, offering a practical solution to preserve their integrity without the need for complete overhaul.

What Exactly is Polyjacking?

Polyjacking is a process used to level and stabilize concrete slabs that have settled or developed voids underneath them. This method is highly effective for repairing various concrete surfaces such as basement slabs, garage floors, driveways, and sidewalks. The primary advantage of polyjacking is that it preserves the existing concrete, eliminating the need for complete removal and repouring. This not only saves time but also reduces costs significantly.

The Process Behind Polyjacking

The procedure begins with a thorough assessment of the affected area to determine the extent of settling or the size of voids present. Once the specific needs are identified, the polyjacking process starts by drilling small holes, about 5/8 inches in diameter, in strategic locations on the concrete surface. These holes are typically the size of an index finger, ensuring minimal intrusion.

Next, a specialized pressurized handgun, equipped with a dual-tube feeding system, is used to inject a polyurethane foam into these holes. The foam expands upon injection, filling the voids beneath the concrete and gently lifting the slab back to its original level. This process is carefully monitored to ensure that the concrete is raised to meet the existing level of adjacent surfaces.

Benefits of Polyjacking

Preserving Structural Integrity

One of the key advantages of polyjacking is its ability to maintain the structural integrity of the existing concrete. This method is particularly beneficial for concrete surfaces that are still in good condition but have experienced minor settling or voids. By opting for polyjacking, property owners can avoid the disruptive and expensive process of breaking out and pouring new concrete.

Longevity and Durability

Polyjacking not only provides an immediate solution to uneven concrete but also contributes to the long-term stability of the structure. The polyurethane material used in this process is durable and resistant to water and other environmental factors, ensuring that the repair lasts for many years.

When to Choose Polyjacking

Polyjacking is most effective in scenarios where the concrete surface is still salvageable. It is an ideal solution for minor to moderate settling issues or when there are voids beneath the concrete that need filling. This method is not suitable for severely damaged or crumbling concrete, where a complete replacement might be necessary.


Polyjacking represents a significant advancement in the field of concrete repair and maintenance. It offers a non-invasive, cost-effective, and long-lasting solution for leveling and stabilizing concrete surfaces. If you’re facing issues with uneven or settled concrete slabs, consider polyjacking as a viable option.

If you have any questions, feel free to contact us. We’re here to help you make the best decision for your property.

Author picture
Author picture