Poly Leveling vs. Mudjacking
Why Modern Polyurethane Lifting Is the Smarter Fix
If your concrete is sinking, you’ve probably heard two terms: Mudjacking and Poly leveling.
Both are used to lift concrete. But they are not the same — and the difference matters.
If you care about long-term performance, clean installation, and minimal disruption, polyurethane leveling is the superior solution in most cases.
Let’s break it down clearly.
What Is Mudjacking?
Mudjacking (also called slabjacking) is an older method of lifting concrete.
It works by pumping a heavy slurry mixture (usually water, soil, sand, and cement) underneath the slab. The pressure from the material pushes the concrete upward.
It has been around for decades and can work in certain situations. But it comes with limitations.
How Mudjacking Works:
- Large holes are drilled into the slab
- A heavy cement-based slurry is pumped underneath
- The pressure raises the concrete
- Holes are patched
The material used is heavy — sometimes 100+ pounds per cubic foot — which adds additional weight to already unstable soil.
That extra weight can sometimes lead to future settlement.
What Is Poly Leveling?
Poly leveling uses high-density polyurethane foam instead of heavy slurry.
Two liquid components are injected beneath the slab. They expand, fill empty spaces, and gently lift the concrete into position.
The foam is lightweight but extremely strong. It stabilizes the soil without overloading it.
How Poly Leveling Works:
- Small, penny-sized holes are drilled
- Expanding polyurethane foam is injected
- The foam fills voids and lifts the slab
- Holes are patched cleanly
The process is precise, controlled, and non-invasive.
Most surfaces are ready to use immediately after lifting.
Side-by-Side Comparison
Strength, Speed, and Stability Compared
Hole Size
Mudjacking: Larger drill holes
Poly Leveling: Smaller, cleaner access points
Material Weight
Mudjacking: Heavy cement slurry
Poly Leveling: Lightweight expanding foam
Cure Time
Mudjacking: Slower set time
Poly Leveling: Rapid cure — ready to use right away
Soil Stabilization
Mudjacking: Fills voids but does not always strengthen weak soil
Poly Leveling: Expands into voids and stabilizes loose soil
Long-Term Performance
Mudjacking: Can settle again if soil remains weak
Poly Leveling: Lightweight and resistant to washout
Why Poly Leveling Is Superior
Advanced Materials. Proven Results.
1. It Doesn’t Add Unnecessary Weight
Sinking concrete usually happens because the soil below has weakened or washed out.
Adding heavy slurry to unstable soil can make the problem worse over time.
Polyurethane foam is lightweight. It restores support without stressing the soil further.
2. It Expands Into Every Void
Mud slurry flows where gravity allows.
Poly foam expands in all directions. It fills gaps, small cavities, and loose soil pockets more completely.
That expansion creates better support under the slab.
3. It’s Faster
Mudjacking can require longer cure times before traffic returns.
Polyurethane foam cures quickly. In most cases, you can use the surface immediately after lifting.
That’s a major advantage for driveways, sidewalks, garages, and commercial spaces.
4. It’s Cleaner
Mudjacking involves pumping thick slurry material under pressure.
Poly leveling is controlled and precise. Small drill holes. Clean patching. Minimal mess.
No large equipment. No piles of material.
5. It’s Water-Resistant
Cement slurry can absorb water over time.
Polyurethane foam is moisture-resistant and does not wash away. That makes it a strong option in areas with heavy rain, irrigation, or freeze-thaw cycles.
Which Option Is Right for You?
Every project is different. We evaluate:
- Soil conditions
- Size of the slab
- Extent of settlement
- Cracking pattern
- Drainage issues
Then we recommend the best long-term solution.
In most residential and commercial situations, polyurethane concrete leveling provides stronger, cleaner, and more reliable results.
Lift It. Don’t Replace It.
If your driveway, sidewalk, patio, or garage floor is sinking, there’s a strong chance it can be lifted safely and efficiently with polyurethane foam.
Modern problems deserve modern solutions.
We stand behind our polyurethane concrete leveling with a 3-year warranty. That means you’re not just getting a fast, clean repair — you’re getting long-term support and peace of mind. If something isn’t right, we make it right. That’s the confidence we have in our process and materials.
Get a free, no-pressure estimate and see if poly leveling is the right fix for your property.
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About Liftwerx Concrete Lifting Services
Liftwerx Concrete Lifting Services is a locally owned company based in Johnstown, CO, serving homeowners and businesses across Northern Colorado. We help fix sinking and uneven concrete that causes trip hazards, water drainage issues, and costly replacement concerns — without tearing out your existing slabs.
Using polyurethane foam concrete leveling, we lift and stabilize driveways, sidewalks, patios, garage floors, pool decks, and more for 50–70% less than replacement. Most projects are completed in just a few hours and are ready to use the same day. If your concrete is settling or uneven, call or text 970-578-9828 to schedule your estimate and restore safe, stable ground around your property.
Address: 491 Expedition Ln, Johnstown, CO 80534
Ready to Fix Your Sinking Concrete?
Liftwerx Concrete Lifting Services – Johnstown, CO
✉️ levelmyconcrete@gmail.com
Serving Loveland, Fort Collins, Windsor & surrounding areas.
Fast responses. No pressure. Free estimates.
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