Mudjacking & Concrete Leveling Madison, WI​

Concrete Leveling


On paper, the process of concrete jacking sounds simple. Unfortunately, raising concrete slabs requires specialized equipment and is as much an art as it is a science. That makes the raising concrete slab with foam DIY (do it yourself) projects difficult and rarely successful. Concrete is simply too heavy and brittle.

In short, there are four major differences between the mudjack and the concrete leveling foam process:
  1. Concrete lifting material
  2. Injection hole size (visibility of repairs)
  3. Lifespan and failure rate
  4. Cost

The Concrete Lifting Process

In short, mudjacking involves pumping thinned concrete slurry under concrete slabs. This fills gaps and raises the concrete.

Raising sunken concrete slabs with foam, or Polyjacking, is another relatively new approach to concrete raising. The process reflects the more traditional approach to concrete leveling, often called mudjacking. This is the general process for both mud jacking and poly jacking:

All contractors differ, but when raising concrete we:

  1. Drill access points through the concrete slabs in specific locations
  2. Inject a material under the concrete through the access points
  3. Patch holes after the slab jacking process is complete


This article compares the two approaches to raising concrete.

Polyjacking vs Mudjacking Marterial & Hole Size

The primary difference between polyjacking vs mudjacking is the injected material. The nature of these materials means the injection hole size differs substantially. The reason many people care about this concept is how noticeable the work is after completion. Patched concrete always differs a bit in color, leaving the penny-sized holes far less noticeable than the larger ones.

Concrete raising by mudjacking involves injecting a concrete mix thinned with sand and water with enough pressure to allow for lifting. Raising sunken concrete slabs with foam utilizes the expansion power of the polyurethane foam to lift concrete. It’s similar to expanding sealant materials but much stronger.

Material & Hole Size

Foam Jacking – Penny-sized holes; closed cell polyurethane material
Mud Jacking – Quarter-sized holes; concrete slurry (thinned concrete mix)

Lifespan & Failure Rate

Concrete Lifting with Foam – Often extends lifespan of concrete (20+ years); less than 1% failure rate

Mud Jacking – Failure rate of 25-50% within 1-5 years

Foam vs Mudjacking Lifespan & Failure Rate

Many individuals are surprised by the lifespan and failure rate differences. Sinking concrete occurs when the dirt under concrete settles, washes out, or recedes for any number of other reasons. Whatever causes this process often also affects concrete slurry, the thinned concrete mixture used in mudjacking.
By comparison, foam mudjacking resists water, temperature, and pests, protecting the supporting structures below. This is why concrete lifting foam companies report that lifting concrete with foam often extends the lifespan of slabs.

Foam Jacking vs Mudjacking Cost Comparison

Mudjacking is always the least expensive option in the short term, but also suffers from the most downsides. Polyjacking, or polyurethane concrete lifting, often cost a little more and comes with the assurance of never worrying about that concrete again. Concrete replacement can be necessary if the slabs are too damaged to lift, but always costs the most and can be damaging to landscaping.
Although mudjacking cost and concrete lifting foam cost differ, you often get what you pay for. Jacking concrete with the traditional approach costs less initially but often more over time due to the high risk of new washouts under concrete. It is also more invasive, resulting in a more noticeable patch process for the life of the concrete. Regardless, if the concrete is repairable, lifting or jacking concrete is almost always a better option than replacement by any measure.

Concrete Leveling Cost Comparison

So many factors play into the base project cost for concrete raising that providing sight-unseen price estimates causes wildly inaccurate projections.  However, here are the general ranges:

Mudjacking Typical Range: $550 – $1,400; $1,000 average

Foam Jacking Typical Range: $900 – $1,700; $1,200 average 

Foam Concrete Leveling

The Approach We Stand Behind

We exclusively lift concrete with foam. This is because we believe the process to be far more effective and a long term solution. 

We are also able to resurface concrete. The combination will take aged concrete and restore it to its original position and look. This often costs less, doesn’t damage surrounding property, and is more environmentally friendly.

Know YOUR Numbers

Planning with general numbers often leads to inaccurate estimations and budgets. That’s one of the many reasons we offer free estimates. Whether you need a quick fix or are planning for work next year, work with actual numbers specific to you.