Cracked, sunken, or uneven concrete slabs don’t just make your property look bad—they can be dangerous and costly to ignore. Fortunately, there’s a high-tech solution that’s faster, cleaner, and more durable than traditional methods: Polyjacking.
If you’re in Long Island, Brooklyn, Queens, or the Bronx, this guide will explain what polyjacking is, why it’s becoming the go-to choice for concrete repair, how much polyjacking costs, and how it compares to older methods like mudjacking.
What is Polyjacking?
Polyjacking—also known as polyurethane foam injection—is an advanced concrete lifting and stabilization technique. It involves injecting a specialized polyurethane foam under sunken or unstable concrete slabs. As the foam expands, it fills voids, compacts the soil, and lifts the concrete back to its original level.
This method has quickly grown in popularity thanks to its speed, minimal mess, and long-term reliability.
How Does Polyjacking Work?
Here’s a quick breakdown of the process:
1. Drill Small Holes
Technicians drill a series of ⅝-inch holes into the affected slab—much smaller than the holes required in traditional mudjacking.
2. Inject Polyurethane Foam
A two-part polyurethane mixture is injected beneath the slab. It expands rapidly (within seconds), filling voids and lifting the concrete precisely.
3. Level and Seal
Once the slab is raised, the holes are sealed, and the area is ready for use—often within 30 minutes.
Where Can Polyjacking Be Used?
Polyjacking concrete is ideal for a wide range of residential, commercial, and municipal applications:
- Sidewalks and walkways
- Driveways and garage floors
- Patios and pool decks
- Basement and warehouse floors
- Concrete steps and stoops
- Roadways and parking lots
Why Choose Polyjacking Over Traditional Methods?
🟢 1. Faster Repairs
Most polyjacking jobs can be completed in a few hours, with surfaces ready for light use almost immediately. Mudjacking and concrete replacement can take days to cure.
🟢 2. Less Invasive
Polyjack requires smaller holes and less equipment. There’s no need to bring in heavy trucks or make a mess of your lawn.
🟢 3. Lightweight but Strong
Polyurethane foam weighs only about 2 to 6 pounds per cubic foot, compared to up to 120 pounds for traditional mudjacking grout. This lighter material doesn’t put additional pressure on already weak soil.
🟢 4. Moisture-Resistant
Unlike mud or cement-based fillers, polyurethane foam is water-resistant. It won’t wash away, crack, or shrink over time.
🟢 5. Precision-Leveling
Polyjacking allows for accurate, controlled lifting, making it ideal for concrete surfaces that require flat, even finishes—like garage floors and commercial properties.
The Dangers of Ignoring Uneven Concrete
Still thinking about putting it off? Here’s what can happen if you neglect your sunken or unstable concrete:
- Tripping hazards that can lead to injury and lawsuits
- Water pooling and improper drainage, which can erode foundations
- Pest infestations through cracks and voids
- Increased repair costs as damage worsens over time
Investing in polyjacking now can save you thousands down the road.
How Much Does Polyjacking Cost?
One of the most common questions we hear is: “What does polyjacking cost?”
While the exact cost depends on your specific project (square footage, severity of damage, location, etc.), here’s a general estimate:
| Project Type | Estimated Cost Range (NYC Area) |
| Sidewalk repair | $750 – $1,500 |
| Driveway leveling | $1,200 – $3,000 |
| Pool deck or patio | $1,000 – $2,500 |
| Commercial slab repair | Custom quote required |
👉 Keep in mind that polyjacking is still more affordable than full slab replacement, which can cost 2 to 3 times more.
For an exact estimate, Zavza Seal’s Mudjacking Contractor Team offers free consultations throughout Long Island, Brooklyn, Queens, and the Bronx.
| Feature | Polyjacking | Mudjacking |
| Hole Size | Small (⅝ inch) | Large (1–2 inches) |
| Cure Time | Minutes | 1–2 days |
| Material Weight | Light (2–6 lbs/ft³) | Heavy (100+ lbs/ft³) |
| Lifespan | 10–15+ years | 5–10 years |
| Moisture Resistance | Yes | No |
| Precision | High | Moderate |
| Cost | Slightly Higher | Slightly Lower |
Bottom Line: If you’re looking for a fast, durable, and less invasive solution, polyjack is the clear winner.
Is Polyjacking Right for You?
Polyjacking is a great option if:
- ✅ You have cracked, sunken, or uneven concrete
- ✅ You have cracked, sunken, or uneven concrete
- ✅ You live in Long Island, Brooklyn, Queens, or the Bronx
- ✅ You care about long-term results and durability
If you’re not sure whether polyjacking is the best fix for your property, our experts will inspect your site and provide honest recommendations.
The Mudjacking Contractor: Your Local Concrete Repair Experts
At The Mudjacking Contractor we bring engineering-grade solutions to residential and commercial properties across NYC. Our polyjacking and mudjacking teams are fully trained, licensed, and insured—and we treat your property like it’s our own.
Here’s why New Yorkers trust us:
- ✔ Over 15 years of concrete restoration experience
- ✔ Local expertise—we know NYC soil conditions
- ✔ Transparent pricing and no surprise fees
- ✔ Quick turnaround and minimal disruption
- ✔ 5-star service and support
Don’t Wait Until It Gets Worse—Lift Your Concrete Now
Sunken concrete isn’t just ugly—it’s unsafe. The longer you wait, the more damage (and cost) you’ll face. With polyjacking, you can restore your surfaces with minimal hassle and long-lasting results.
🛠 Get a Free Polyjacking Estimate Today
📞 Call The Mudjacking Contractor: 1-866-310-6008
🌐 Visit: www.mudjackingcontractor.com
📍 Serving Long Island, Brooklyn, Queens, and the Bronx
Because concrete problems don’t fix themselves!
