Concrete Leveling & Repair with PolyLevel
South Dakota | Nebraska | Wyoming
Blackburn Foundation Repair provides concrete leveling and repair across South Dakota, Nebraska, and Wyoming. Our team evaluates sunken or uneven sidewalks, driveways, patios, steps, and other slabs, then recommends an appropriate lifting, stabilization, or protection plan.
Total Concrete Protection
Sunken concrete creates trip hazards, drainage problems and an uneven appearance around your home. Blackburn uses PolyLevel expanding foam to lift and stabilize eligible slabs with less disruption than full concrete replacement.
Signs of Sunken Concrete

Concrete can settle when the soil beneath a slab shifts, compresses, or washes away. Warning signs include uneven sidewalk sections, sinking steps or patios, widening cracks, water draining toward the home, and gaps beneath the slab. These conditions can create trip hazards and often worsen if the underlying void is not addressed.
Blackburn uses PolyLevel® expanding foam to lift and stabilize eligible concrete slabs. The material is injected through small holes and expands beneath the concrete to fill voids and carefully raise the surface. A professional inspection determines whether lifting is appropriate and how much correction can safely be achieved.
The PolyLEVEL Solution

PolyLevel expanding foam can reach voids beneath eligible slabs through small injection holes. As the material expands, trained installers carefully control the lift to help restore a safer, more even surface. Because the foam cures quickly, many repaired areas can return to service sooner than with traditional concrete replacement.

Traditional concrete-lifting methods may use heavy grout or other materials beneath a slab. PolyLevel® uses lightweight expanding foam that can reach voids through small injection holes, allowing trained installers to control the lift while adding less weight to the supporting soil. It also cures quickly, so many repaired areas can return to service sooner.
The right repair depends on the slab’s condition, the cause of settlement, and the surrounding drainage. Blackburn’s concrete specialists inspect the area and explain whether PolyLevel, crack and joint sealing, surface protection, or replacement is the most appropriate option.
Nexus Pro®

Protect Your Concrete from Soil Erosion with Nexus Pro®
NexusPro® is a silicone-based sealant for joints and cracks specially engineered to provide long-lasting flexibility and to stand up to harsh weather conditions. Unlike traditional polyurethane sealants, NexusPro resists UV rays, which means it won’t crack, bubble or dry. It fits into homeowners’ busy lifestyles, too – drying time is a fraction of that needed for other urethane-based caulking products.
Nexus Pro® System Advantages
- Highly flexible material.
- Seals cracks and joints from water infiltration.
- Quick application and drying time.
- Stands up to any weather conditions.
- UV-resistant to prevent drying, cracking, bubbling or yellowing.
- Professional installation ensures clean look.
- Proven to last over 20 years—more than twice as long as traditional urethane-based sealants.
SealantPro

Protect the Life of Your Concrete with SealantPro™
In just one clear, non-yellowing application, SealantPro permanently protects your concrete from its strongest enemies: moisture, chemical elements and seasonal changes. It penetrates deeply into pores and actually bonds with the concrete, creating a strong, permanent barrier. Unlike other concrete sealers, SealantPro’s Seal of Protection™ does not wash away or weaken over time. That means your concrete is protected from pitting, flaking and cracking. With SealantPro, concrete stays smooth and stain-resistant.
SealantPro™ System Advantages
- One-coat application dries quickly.
- Penetrates deep into pores to protect concrete from water damage.
- Permanently bonds with the concrete.
- Clear, non-yellowing formula.
- Won’t wash away or weaken over time.
Blackburn Foundation Repair
Since 1992, Blackburn Foundation Repair has helped homeowners and businesses across South Dakota, Wyoming, and Nebraska address settled concrete, foundation problems, wet basements, and crawl space concerns. For eligible driveways, sidewalks, patios, steps, and other slabs, our PolyLevel® system uses lightweight expanding foam to fill voids, lift the concrete, and improve stability with minimal disruption.
During a concrete inspection, Blackburn evaluates the cause and extent of settlement, checks for voids and drainage problems, and determines whether lifting, stabilization, joint sealing, or surface protection is appropriate. Recommendations are based on the slab’s condition and the homeowner’s repair goals. Common concerns include:
- Mudjacking
- Sunken concrete
- Slab leveling
- Concrete lifting
- Concrete leveling
Blackburn provides free, no-obligation concrete inspections throughout South Dakota, Wyoming, and Nebraska. If PolyLevel® is appropriate, your specialist will explain the installation process, the expected amount of lift, and any limitations before work begins. Crack and joint sealing or surface protection may also be recommended to help reduce future water intrusion and weather-related damage. Request your free inspection or call (800) 392-3389.
Request a Free Concrete Leveling Estimate
Concrete Leveling Services
Testimonials
Concrete Leveling FAQs
Why does concrete sink or become uneven?
Concrete can settle when soil beneath a slab washes out, shrinks, or was not compacted well. This creates empty spaces that allow the slab to move downward.
Can a sunken concrete slab be lifted without replacing it?
In many cases, yes. PolyLevel uses expanding foam beneath the slab to fill voids and carefully lift the concrete toward its original position.
What concrete surfaces can be leveled?
Driveways, sidewalks, patios, garage floors, pool decks, and other concrete slabs may be candidates for leveling after an inspection.
How are cracks and joints protected after leveling?
After the slab is stabilized, cracks and joints may be sealed to help limit water from reaching and weakening the soil below.
How do I know whether to level or replace my concrete?
The condition of the slab and the reason it moved determine the best solution. Request a free concrete inspection from Blackburn Foundation Repair.
Blackburn Foundation Repair
Service Area
Sioux Falls, SD
Our primary service hub covering the greater Sioux Falls metropolitan area and surrounding communities.
Spearfish, SD
Serving the Black Hills region with comprehensive services for residential and commercial clients.
Casper, WY
Pierre, SD
Providing reliable services to the energy capital of Wyoming and the Powder River Basin region.


















