Mudjacking vs. Polyjacking

Mudjacking vs. Polyjacking


If you’re dealing with damaged concrete, you might wonder whether to replace or repair it. Concrete replacement can be costly and time-consuming, so many people opt for concrete repair instead.

Fortunately, advanced treatments, such as Mudjacking and Polyjacking, are now available, which make concrete repair more accessible and more efficient than ever.

However, it can take time to determine which solution best fits your specific concrete needs. We have provided a detailed comparison below to help you make an informed decision.

What are Mudjacking and Polyjacking?

Concrete is a popular construction material due to its strength and durability.

However, it can be susceptible to wear and tear over time due to soil compaction, erosion, and other environmental factors. If you have noticed sinking or uneven concrete on your property, consider replacing the entire slab.

But before you do, there are cost-effective and efficient ways to repair damaged concrete slabs. 

Mudjacking and Polyjacking, also known as “pressure grouting” or “slab jacking,” are reliable techniques to restore damaged concrete.

Both methods involve lifting slabs that have shifted as the concrete settles or repairing more extensive foundation damage. Instead of replacing the entire slab, Mudjacking and Polyjacking can target specific areas and repair them precisely.

This saves you time and money and helps ensure that your concrete remains functional and durable for years to come.

Mudjacking involves drilling small holes in the affected concrete slab and pumping a mixture of cement, water, and sand underneath to raise it back to its original level.

On the other hand, Polyjacking involves injecting high-density polyurethane foam into the affected area to lift the slab. Both techniques are quick, efficient, and require minimal downtime. 

Mudjacking and Polyjacking can be used for various applications, including fixing uneven sidewalks, driveways, pool decks, and foundation repair. The techniques are also eco-friendly, as they prevent the need to dispose of old concrete slabs in landfills. 

In conclusion, if you have noticed sinking or uneven concrete on your property, don’t waste your time replacing the entire slab. Consider Mudjacking or Polyjacking as a cost-effective and efficient technique to restore your concrete while ensuring it remains durable and functional for years.

How does it work?

Concrete slabs, such as sidewalks, driveways, and patios, are often subjected to sinking or settling due to soil erosion or other environmental factors. To repair such damaged slabs, professionals use two effective techniques: Mudjacking and Polyjacking. 

Mudjacking involves drilling small holes into the hollow or hollowed-out slabs and then pumping a mud-like sand mixture, a proprietary blend, underneath the slab. The pressure from the injected slurry raises and stabilizes the slab, restoring it to its original level. 

Polyjacking, on the other hand, uses a polyurethane foam mixture. The foam is injected into the drilled holes, which expands and lifts the sunken slab to the proper level. 

Both techniques require a professional with years of experience to ensure the process is done with patience and precision. The repaired slab is presented to the right level, and the holes drilled in the slab are patched. Once the slurry or foam is cured, it creates a solid base for the concrete slab, ensuring it stays in place for a long time. 

In summary, Mudjacking and Polyjacking are reliable solutions to repair sunken concrete slabs. They are excellent techniques to restore the damaged slabs to their original level, making them safe and functional again.

When should you use these?

If you notice a void forming under your concrete slab, addressing the issue as soon as possible is essential. The two main methods to deal with this problem are mud and polyjacking. Both methods involve injecting material under the slab to fill the void and lift the concrete back into its original position.

Mud jacking is a traditional method that uses water, dirt, and cement to fill the voids. This mixture is injected under the slab through small holes drilled into the concrete. The material then hardens and stabilizes the slab.

Polyjacking, on the other hand, uses a polyurethane foam material to fill the void and lift the slab. This method is gaining popularity due to its faster curing time and ability to handle heavier loads. The foam expands as injected, filling the entire void and providing a solid base for the slab.

Both mud and poly jacking are effective at fixing voids under concrete slabs. Contacting a concrete professional to determine which method is best for your specific situation is recommended. The professional can assess the issue’s severity and recommend the best course of action.

To lift settling concrete slabs

If you are experiencing settling concrete slabs, then Mudjacking or Polyjacking can be the appropriate solution.

These techniques are beneficial for non-load-bearing concrete slabs that are settling. In this technique, a highly skilled expert can inject a specially formulated slurry under the concrete, which can lift and stabilize the slab.

The slurry is made up of a mixture of cement, water, and other additives to increase viscosity.

Injecting the slurry under the concrete involves drilling small holes in the concrete slab and then pumping the slurry through the holes.

The slurry fills voids under the slab and raises it to the desired level. Once the slab is lifted and stabilized, the holes are patched with cement, and the surface is smoothed.

This technique is an excellent way to restore the appearance and safety of your concrete surfaces without the need for a complete replacement.

Polyjacking vs Mudjacking

Concrete repair: Mudjacking vs. Polyjacking


When it comes to repairing concrete issues, tearing out the existing concrete and replacing it can be a costly and time-consuming solution.

Fortunately, there’s a much cheaper alternative that can save you an estimated 50-75% compared to concrete replacement: Mudjacking. This technique can solve many common problems like un-level concrete pads, sunken steps, uneven sidewalks, and uneven joints in concrete pads.

Mudjacking is a simple and effective three-step process that can quickly and efficiently restore your concrete:

  1. A series of holes are drilled into the problem area of the concrete.
  2. A sand-based grout (a proprietary blend) is pumped under the same slab, raising the area to the desired height.
  3. The drilled holes are patched with cement, and once the hole patches have dried, your concrete will be ready for use.

One of the advantages of choosing Mudjacking over concrete replacement is that it can save you time and money. With mudjacking, you can eliminate the time and cost of demolition, removal of materials, and the re-landscaping of surrounding areas. Most projects are completed within a day; some can be finished in just a few hours.

So, if you’re looking for an efficient, cost-effective, and long-lasting solution to your concrete repair needs, consider Mudjacking. With its simple three-step process and impressive savings, it could be just what you need to restore your concrete to its former glory.


Polyjacking is a concrete repair technique that uses polyurethane foam to lift sunken or settled concrete slabs. It is a highly efficient and non-invasive procedure, making it an ideal alternative to traditional mudjacking methods. Polyjacking can save you time and improve the overall appearance of your concrete surface.

One of the main advantages of polyjacking is the smaller size of the holes drilled during the process. The injection holes measure only 3/8″ and 5/8″, much smaller than mud jacking requires. These tiny holes are hardly noticeable once patched up, giving your concrete a cleaner and more polished look.

Another benefit of polyjacking is that it requires fewer holes than mud jacking. Since the polyurethane foam is injected as a liquid, it can spread further and fill voids more efficiently. Fewer holes must be drilled in a slab, resulting in a less invasive and more cost-effective repair.

Polyurethane foam also has moisture-resistant properties, making it an excellent option for areas exposed to high humidity or moisture levels. It can be applied underwater or in frequently wet areas, and it will hold up longer over time, making it a more durable solution.

Furthermore, polyurethane is erosion-proof and will not degrade over time since it is hidden from UV light under the slab. It will last forever and will never erode or wash out.

Lastly, polyjacking is a quicker process compared to traditional mudjacking. It can be completed in hours, leaving your concrete ready quickly. If you have a time restriction, polyjacking is an excellent option, as it can be completed quickly and efficiently.

How long do Mudjacking and Polyjacking take?

The duration of the Mudjacking and Polyjacking process can vary depending on the damage to your property and the project size. Smaller projects can take as little as a few hours, while more extensive projects may require an entire day or more.

After the slurry or poly has been injected, leaving it undisturbed for a certain period is essential.

This will allow the holes patched to cure entirely before any weight or pressure is put on the surface.

The duration of this curing time will depend on a few factors, such as the type of material used, the temperature and humidity levels, and other environmental conditions.

It is best to consult with your contractor to determine the appropriate curing time for your specific project.


In conclusion, Mudjacking and Polyjacking are cost-effective and efficient techniques that restore damaged concrete slabs. However, there are some differences in terms of time and price.

Mudjacking is generally less expensive than Polyjacking but can take longer to complete. This is because the slurry used in Mudjacking takes longer to cure than the foam used in Polyjacking. Additionally, Mudjacking may require more equipment and personnel to complete the job, which can add to the cost.

On the other hand, Polyjacking is generally faster and requires less equipment and personnel. The foam used in Polyjacking cures faster than the slurry used in Mudjacking, which means the job can be completed more quickly.

However, Polyjacking is generally more expensive than mudjacking due to the cost of the foam material.

Ultimately, the choice between Mudjacking and Polyjacking depends on various factors, including the extent of the damage, the location of the damaged slab, and the budget. It is recommended to consult with a professional to determine which technique is best for your specific situation.