Concrete Leveling Before & After Photos

Before: Sinking Concrete Threatens Critical HVAC Equipment

At NWTC's Niagara campus, a small but essential concrete pad supporting a commercial AC compressor unit had begun to settle and tilt unevenly. Over time, shifting soils beneath the slab caused it to sink by several inches—putting strain on the compressor lines and creating long-term risk for the system’s performance and longevity.

The college’s facilities team wanted a solution that was fast, clean, and wouldn’t require moving or disconnecting the equipment.

After: Leveled, Stabilized, and Protected with PolyLevel®

Sure-Dry installed the PolyLevel polyurethane foam lifting system, which allowed our team to:

• Lift and re-level the sunken concrete pad with precise control

• Minimize vibration and disturbance to the attached AC unit

• Avoid costly removal or shutdown of the HVAC system

• Achieve long-term slab stabilization with minimal downtime

The work was completed in just a few hours, and the pad is now perfectly level and structurally sound, protecting both the concrete and the heavy equipment it supports.

In Marinette, WI, a homeowner faced difficulty with a high front step that made entering the home a challenge. As shown in the before photo, the step's height was not only an inconvenience but also a potential hazard. After reaching out to us, we swiftly addressed the issue using our PolyLevel and NexusPro products, visible in the after photo. Our solutions not only improved accessibility but also enhanced the safety and appeal of the home's entrance, providing a reliable and long-lasting fix that meets our mission of offering a remarkable customer experience.

Before
The homeowner in Marinette, WI had a settling garage apron that created an uneven transition between the driveway and garage floor, raising concerns about trip hazards, water drainage, and long-term concrete damage. Although the site visit occurred during winter with light snow cover, elevation checks using a level and precise measurements clearly confirmed slab settlement and downward slope toward the garage—common in northern Wisconsin due to freeze-thaw cycles and soil movement.

After
Sure-Dry completed the repair in spring by lifting and stabilizing the garage apron using PolyLevel® to restore proper elevation and alignment. Once the slab was brought back to grade, joints and cracks were sealed with NexusPro® to help prevent surface water from penetrating beneath the concrete. The repair corrected the sinking apron without replacement and reestablished proper drainage away from the garage.
The homeowner now has a level, secure garage apron designed to perform reliably through seasonal weather changes.

Before
The homeowner in Marinette, WI had a severely cracked and sunken concrete driveway along with an uneven walkway leading to the front door. The settlement created multiple trip hazards and caused improper drainage toward the home, while widening cracks allowed water to reach the soil below. These conditions are common in northern Wisconsin where freeze-thaw cycles and soil movement accelerate concrete deterioration.

After
Sure-Dry lifted and stabilized the settled concrete using PolyLevel® to restore proper elevation across the driveway and walkway. Once the slabs were realigned, cracks and joints were sealed with NexusPro® to help prevent moisture intrusion and protect the base material beneath the concrete. The repair eliminated trip hazards, improved drainage, and restored safe access to the home without the need for full replacement.
The homeowner now has a level, secure driveway and walkway designed to withstand seasonal weather conditions.

Before
The homeowner in Marinette, WI had a concrete sidewalk leading to the front of the home with severe sinking and unlevel slabs, creating pronounced trip hazards and an unsafe walking surface. Sections of the sidewalk had shifted out of alignment, allowing water to collect and drain back toward the foundation. These conditions are common in Marinette-area homes due to soil movement and repeated freeze-thaw cycles.

After
Sure-Dry lifted and stabilized the sidewalk using PolyLevel® to restore proper elevation and create a smooth, level path to the front entry. The precision lifting process corrected the uneven slabs without the need for concrete removal or replacement, improving both safety and drainage away from the home.
The homeowner now has a level, secure sidewalk that provides safe access and long-term durability.