Raise it, don't replace it!
Let Nissen Slabjacking fix your uneven concrete

Uneven walkways, tripping hazards, and drainage problems got you down? Your concrete doesn’t need a complete overhaul, it needs a lift! Nissen Slabjacking provides a fast, affordable way to level your concrete slabs and restore your peace of mind.

Concrete Raising & Leveling in Central Minnesota

Terry Nissen, owner of Nissen Slabjacking Inc, business truck.

Overtime, concrete slabs can sink or rise, becoming unleveled creating trip hazards and outdoor structure damage. Concrete homes and buildings can slant towards the foundation, allowing for water to leak into basements. Slabjacking, also known as Mudjacking, is a restorative technique for the purpose of repairing this type of broken concrete by raising and leveling the concrete slabs around residential, commercial, agriculture and municipal properties.

Responsibility you can count on.

All our concrete fix and repair work has a two-year warranty.

Commitment to honest service.

We will let you know if concrete raising is right for you.​

Efficient service done right.

Our services are completed in a timely manner, done right the first time.

How Nissen Slabjacking Raises Concrete

Our process is simple: we drill holes into the concrete that are 1 inch in circumference throughout the repairable area. Then we pressure inject an eco-friendly specialized sanded grout, forcing the concrete slab to become level with the surrounding area. We never use foam due to its lack of long term stability and that it costs more. The drilled holes are then patched with cement matching its surrounding area.

The repaired area can be used almost immediately.

Slabjacking requires no demolition, this saves you money and time. Raise it, don’t replace it!

first step drill through sunken concrete

Step 1

A pattern of 1" holes are drilled throughout the sunken concrete slab.

second step pump mud into void under concrete

Step 2

Grout is pumped to fill up the void and becomes pressurized this causes the slab to be raised to the desired height.

third step patch drill holes

Step 3

The holes are then patched with cement and will closely match the current concrete. The slab can be used almost immediately.

Reasons Why Concrete Becomes Unleveled

Aggregate Expansion

Cracking due to chemical reaction. Carbon dioxide in the air causes carbonation contributing to the break out in the concrete.


When water flows through cracks in concrete, water may dissolve various minerals present in the hardened cement.

Stress Cracks

Caused by corrosion of reinforcement bars; expansion of corrosion can induce mechanical stress causing cracks.

Call Us Today

Nissen slabjacking work truck pictures from the back.
Terry nissen drilling into concrete.