About

PolyPro LLC is veteran-owned and operated by Kelly Hoggarth of Bismarck, ND. Serving Central and Western North Dakota, we raise and level concrete surfaces such as driveways, parking lots, sidewalks, patios, heated garage or shop floors, basements, steps, and more using our foam jacking system. The process of raising concrete with polyurethane foam is inexpensive (compared to the alternatives like mud jacking), and is exponentially faster than replacing the concrete.

Why Does Concrete Settle?

Poor Soil Conditions: Clay-rich soils are ‘elastic.’ They expand and contract with moisture content. As soils become saturated with water, the clay expands and loses strength. This condition allows slabs to sink just like standing in wet mud. This can occur from heavy rains, melting snow or plumbing leaks.

Poor Compaction: Many homes are built on backfilled soils. If the soil is not compacted correctly, backfill will slowly and unevenly compact, sometimes over a period of a year, allowing slabs to settle.

Tree Roots: Trees and large shrubs can consume up to 30 gallons of water a day. If located near concrete, the loss of water in the soil will make the soil contract and can cause the slabs to settle.

Poor Drainage: Improper drainage can cause soil instability by creating areas of saturated soils allowing the slabs to settle. Poor drainage can be typical to the area, or as minor as a misplaced down spout.
Many homeowners make the mistake of waiting until the problem worsens or spend 2x as much on replacing the concrete. Until the problem is fixed your home remains at RISK.

Steps to Raising Your Concrete

Most concrete jacking takes between one and two (1-2) hours—start to finish—and your concrete will be ready for use immediately upon completion!

Step 1) Injection holes are strategically drilled around the areas where the concrete is sunken and requires lifting.

Step 2) Once everything is prepped and the hose and materials are in place, the polyurethane foam is injected through the holes which fills the space underneath the concrete slab, using the concrete slab itself to drive the foam into the crevices, thereby lifting the concrete back to its original, correct level.

Step 3) Upon completion of leveling the concrete, the injection hole(s) are filled discretely with new cement, allowing you to use your surface immediately.

Summary: Polyurethane Concrete Raising uses a foam material that is injected under the slab. When the components of this material are mixed, a reaction causes the material to expand. This expanded foam fills any voids beneath the slab and raises concrete. This material will never lose density, is permanent and weighs only about 2 lbs. per cubic foot.

Benefits of Polyurethane Foam

Cost Effective: Concrete jacking is typically about half the cost of replacing the same concrete. Ultimately, the cost of raising or stabilizing concrete is a direct reflection of how much leveling material the project will require.

Time: Ready to use immediately!

Clean Work Environment: No concrete or grout splatter and no wash down needed.

Smaller Holes: Polyurethane concrete raising drills a nearly invisible 5/8 inch hole and the process calls for considerably fewer holes than traditional mudjacking; Minimal patchwork needed.

Lightweight: This material will never lose density, is permanent and weighs only about 2 lbs. per cubic foot. Compared to traditional Mudjacking material weighs on average 100 lbs per cubic foot.

Green: The poly foams we use are environmentally friendly, consisting of 39-49% renewable and recycled materials. HMI poly foam is a top-of-the-line material, designed specifically for different concrete applications, it allows us to easily adjust our approach to your needs.