Concrete Lifting and
Leveling (Polyjacking)
- Concrete Leveling (Polyjacking)
Lift, Level & Restore Your Concrete Without Costly Replacement
Sunken, damaged, or uneven concrete doesn’t just look bad — it creates dangerous trip hazards and structural problems. At Sidewalk Savers, we specialize in polyjacking, a modern solution that lifts and levels concrete quickly, cleanly, and affordably.
Polyjacking uses expanding polyurethane foam injected beneath the concrete slab to lift and stabilize it. Unlike traditional mudjacking, polyjacking requires smaller drill holes, cures in minutes, and provides long-lasting strength without adding extra weight to the soil.
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Are your sidewalks, driveways, patios, steps or pool deck sinking, heaving, or developing dips, cracks, or uneven surfaces? That’s more than just an eyesore — it’s a safety risk, an accessibility issue, and over time it can reduce the value of your property. Our concrete lifting and leveling (polyjacking) service offers a fast, durable, and minimally invasive solution to lift, level, and stabilize uneven concrete surfaces — without full replacement.
What is Polyjacking?
Polyjacking (also known as polyurethane foam leveling or polyurethane injection) is a modern concrete raising method that injects expanding foam beneath a sunken or uneven concrete slab. The foam fills voids in the soil, lifts the concrete to its proper level, and cures quickly to restore strength and stability. It’s more affordable, lighter, cleaner, and faster-curing than many traditional methods, such as mudjacking or replacement.
Why Choose Polyjacking vs Traditional Methods
We offer a full suite of services tailored to address customers’ unique property needs, with solutions matched to the condition, level of exposure, type of surface, and aesthetics.
| FEATURESaaaaaaaaaaaaaa | Polyjacking | Traditional Mudjacking / Slab Replacement |
|---|---|---|
| Size of holes / surface disruption | Small (often penny-sized), minimal mess. | Larger holes or more invasive disturbance |
| Cure time / downtime | Very fast — often within minutes or a few hours the surface is usable . | Slurry based methods take longer to set; replacement takes much longer |
| Weight & soil impact | Lightweight foam → less risk of further settling or soil compression . | Heavier materials (slurry etc.), more risk of stress below |
| Durability & resistance | High resistance to moisture, good long-term performance; foam helps prevent wash-outs and voids forming again. | Slurry or mud materials may degrade, erode, or be washed out; replacement is costly |
| Cost & value | Higher initial cost than basic mudjacking, but often more cost-effective long-term because less rework needed. | Lower initial cost sometimes, but may require repeated maintenance or eventual replacement |
How Our Polyjacking Process Works
1. Inspection and Evaluation
Thorough inspection of the affected area
Assessment of degree of sinking/heaving
Evaluation of soil and ground conditions
Drainage system analysis
Inspection of nearby trees, shrubs, and roots
Identification of underlying causes of erosion and voids
Detection of water accumulation issues
2. Preparation of the Concrete Slab
Drilling small holes (⅜ or ⅝ inches) into concrete slabs at strategic points
Holes designed to maintain slab integrity without damage
Strategic placement for optimal foam distribution
Preparation for eventual patching and blending
3. Foam Injection
Injection of two-part high-density polyurethane foam through drilled holes
Foam expansion to fill voids under the slab
Controlled lifting of concrete to desired level
Precise material application for optimal results
4. Leveling & Fine Adjustment
Real-time monitoring of lift levels during foam expansion
Adjustments to ensure proper concrete alignment
Verification of proper drainage slopes
Assessment of usability and aesthetic requirements
5. Sealing & Cleanup
Patching of injection holes with matching concrete or patch material
Blending patches to match existing slab appearance
Optional crack filling and sealing upon customer request
Complete site cleanup and safety restoration
6. Final Inspection & Monitoring Advice
Comprehensive walkthrough of completed work
Drainage and slope verification
Long-term maintenance guidance
Monitoring recommendations for continued stability
Typical Problems We Fix
1. Common Issues with Residential & Commercial Concrete
- Uneven sidewalks and trip hazards – slabs sink or heave, creating dangerous height differences.
- Settled driveways and entryways – sunken concrete at garage lips, front steps, or thresholds.
- Patio and pool deck settling – water drainage issues, puddling, and unsafe edges.
- Cracked or separating slabs – joints widen, causing further shifting and safety risks.
- Sunken steps or stoops – entryways become unsafe and non-compliant with ADA standards.
2. Water & Environmental Damage
- Poor drainage and pooling water – standing water accelerates erosion and freeze-thaw damage.
- Soil washout beneath slabs – causes hollow voids leading to cracking and sinking.
- Frost heave or ground movement – especially in NJ winters, leading to lifted and uneven slabs.
3. ADA Compliance & Safety Issues
- Non-compliant slopes and transitions – raised slabs create accessibility issues for wheelchairs, walkers, and strollers.
- Cracks and gaps in walking paths – liability hazards for property owners and municipalities.
- Uneven municipal sidewalks – safety and code compliance issues requiring cost-effective repair versus full replacement.
- Concrete Leveling (Polyjacking)
Benefits of Polyjacking
Whether it’s a sidewalk, driveway, patio, pool deck, steps, or something else, our expert team restores the safety, functionality, and appearance while extending the life of your concrete. Most jobs are completed in just a few hours with minimal disruption to your property.
- More affordable than replacement
- Smaller drill holes = cleaner finish
- Long-lasting and eco-friendly solution
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- What to Expect
Expect More from Your Service Provider
Request an Estimate
You’re busy. That’s why our process from start to finish is designed to compliment your schedule and lifestyle.
Get Scheduled
We make scheduling easy and convenient. We will work with you to find a suitable time for your repair, show up promptly, and work efficiently so you have use of your concrete within hours. We know your time is valuable.
Get Your Results
We deliver on our promise to every customer, every time, so you can sit back and relax knowing that you’re in trusted hands with Sidewalk Savers.