Concrete Leveling in McHenry, IL

Sinking sidewalks, cracked patios, and uneven driveways are common issues in McHenry, where freeze-thaw cycles and clay-heavy soils take their toll on concrete slabs. At Perma-Seal, we specialize in concrete leveling services in McHenry, IL, using advanced PolyLevel® polyurethane foam — a faster, cleaner, and longer-lasting alternative to traditional mudjacking.

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Why Concrete Settles in McHenry

In McHenry County, concrete settlement is often caused by:

Water runoff and erosion from frequent rainfall or poor drainage
Expansive clay soil that shifts with moisture changes
Improper soil compaction when concrete was originally poured
Frost heave from repeated freeze-thaw cycles
Tree roots or organic breakdown beneath slabs

These issues result in voids beneath the concrete, causing it to crack, tilt, or sink. If not addressed, it may worsen — becoming more costly and hazardous.

PolyLevel® vs. Mudjacking: What’s Better?

Mudjacking involves pumping a heavy cement slurry beneath the slab. But this adds weight to already unstable soil — often causing more long-term problems. In contrast, PolyLevel® foam is lightweight, expands with precision, and cures in just 15 minutes.
Benefits of PolyLevel® for McHenry Homes:

Small, clean injection holes
Minimal disruption to landscaping or hardscapes
Fast-curing foam – walk on it within 30 minutes, drive on it within 4 hours
Waterproof – won’t wash out in wet soil
Lightweight and stable
Eco-friendly and long-lasting

Our Concrete Leveling Process

1. Inspection & Evaluation

We start with a detailed on-site inspection to evaluate the severity and cause of the uneven concrete.

2. Drill & Prep

We drill small access holes (less than a dime in size) into the slab for injection points.

3. Foam Injection (Polyjacking)

Polyurethane foam is injected beneath the slab, expanding to lift and level the concrete precisely.

We Level These Concrete Surfaces in McHenry:

Driveways
Sidewalks
Patios
Garage Floors
Pool Decks
Steps
Porches
Basement Slabs

Why McHenry Homeowners Choose Perma-Seal

With over 45 years of experience, Perma-Seal is trusted across Northern Illinois for our professionalism, precision, and long-term results.

A+ BBB rating
4.9+ star Google reviews
Certified, trained technicians
No-pressure sales and transparent pricing

Don’t let sunken concrete cause further damage or safety concerns. Let our experts inspect the issue and offer a fast, effective fix with PolyLevel® concrete leveling.

Call 800-421-7325 or complete our online contact form to schedule your complimentary inspection today.

Frequently Asked Questions

How much does concrete leveling cost in McHenry, IL?

Every property is different. We offer free inspections, and this helpful article explains how lifting compares to full replacement in terms of cost, speed, and mess.

Is PolyLevel® better than mudjacking?

Yes. It cures faster, weighs less, is waterproof, and lasts longer — without adding unnecessary load to the soil.

Can I use the concrete the same day?

Yes! Most surfaces are ready to walk or drive on within 2-3 hours of completion.

Trusted By Thousands of Homeowners

Concrete Lifting

Sean was great. Showed up on time. Was very informative.

Stephen Farr

Concrete Lifting

Sean was fantastic and professional. Your company has done a lot of work for us over the last few years and everything has been done well and professionally

John Lanning