FAQ's

Concrete Leveling of Kansas, llc works on a diverse set of projects. From driveways and sidewalks to patios, garages, and concrete floors. We have the experience and equipment to provide you with the quality you are looking for. Make sure to ask about our 2 year warranty.


What is mud jacking?

Mud jacking is the process of raising sunken concrete flatwork using a concrete slurry that is pushed under a slab with hydraulic pressure through a small hole, thus raising the concrete to a level condition.

How does mud jacking work?

  • A small hole (1 5/8") is drilled into the concrete in the affected area.
  • The pump hose is inserted into the hole and a concrete slurry mixture is pumped under the concrete, filling any voids or cavities which then raises the concrete. We continue pumping until the desired lift is achieved.
  • After the hose is removed, we use concrete to patch the small hole that was created.

How does mud jacking work?

Traditional mud jacking is a proven method, with over 70 years of proven success when performed in a controlled manner.

Poly jacking is a relatively new technology that uses a two part expandable urethane foam to fill the voids and lift the concrete.

​With feedback from customers, vendors, and other specialists related to the concrete industry, we feel that the poly jacking at this time has more downside than benefits.

The main downside is the environmental impact caused by the use of this product.

Please call with any questions.

The following comes from www.cdrecycling.org: Polyurethane foam is a byproduct processed from crude oil. Main ingredients are polyois and disocyanate, both of which are identified as carcinogens and listed as Toxic Substances by EPA. Other ingredients and exposure to its contaminants toluene diisocyanate, methylene chloride, hydrogen cyanide, Isocyanates are known neurotoxins or carcinogens causing cancer in animals.

Polyurethane is a petroleum-based, toxic, sticky material that adheres to the concrete, rendering it unacceptable at the recycling centers. At some point, all concrete must be replaced. Concrete that has polyurethane attached to it will not be accepted at concrete recycling centers. It must be disposed of at a toxic waste facility. The Construction & Demolition Recycling Association states that “no concrete will be allowed for processing that contains hazardous materials or contaminates.“ When concrete is removed, it will be the owner's responsibility and cost to safely remove and dispose of the toxic polyurethane foam.