Concrete Leveling

Concrete Repair Solutions

Sinking concrete is a common occurrence across Southern Florida. Many areas of your home may be affected by sinking or settling concrete such as your driveway, pool deck, sidewalk, outdoor steps, patio, garage floor, and other concrete surfaces.

The experts at NSquare, Inc. have over 25 years of experience lifting and leveling concrete. From soil erosion and washout to natural disasters displacing dirt, our technicians have seen and fixed it all. We can level any concrete floor, slab, or outdoor fixture and help you eliminate trip hazards and pooling water problems.

NSquare, Inc. is the only certified PolyLevel® concrete leveling contractor in Southern Florida. PolyLevel is a proprietary polyurethane foam injection system is proven to permanently raise and level any cracked or sunken concrete areas around your home.

In addition, PolyLevel is an affordable, environmentally friendly and permanent way to restore the appearance and safety of your concrete without the hassle, mess or cost of replacing it.


Why Concrete Sinks

Concrete is amazing stuff. It can be poured, shaped and made into just about anything you like. But even though it’s incredibly strong, it’s not indestructible. So, when you see a driveway, pool deck or patio with broken, sunken slabs, there are reasons why these things happen.

What Lies Beneath

When your home was built, the contractor likely moved the soil around the building site resulting in poorly compacted soil. And even when it is compacted well, it’s never as stable as the original soil. Over time, this can cause voids to form and slabs to settle.

Another cause of soil failure is drought. During dry conditions or even just during periods of warm weather and low precipitation, the soil under your concrete will dry out and shrink, creating voids. The concrete above eventually cracks and sinks into these empty spaces; especially if any weight is placed on it.

When the rains return, as they always do here in Southern Florida, the water has an even easier pathway under the slab due to cracks and crevices left over from the dry period. And this wet, soft soil is just too weak to support the concrete above it. In the worst case, the soil erodes and washes away completely, leaving behind large voids that cannot support the weight of the concrete above.

Sunken concrete isn’t the end of the world, however. With the right technology, such as PolyLevel, and the right know-how, it can be lifted and leveled, so that it can be enjoyed as it was meant to be.

Advantages of PolyLevel®

  • Non-invasive installation
  • Quick installation and cure time
  • Accurate lift for clean results
  • Adjustable for loads of all sizes

Sinking and uneven outdoor concrete is not at all uncommon in Florida and is often the result of a weak soil base, shifting soil or erosion. If you have noticed sinking concrete near your home in South Florida or nearby, call us today for a free estimate!

Get Your FREE Inspection & Estimate Call Now!

How PolyLevel® Concrete Lifting Works

The causes of uneven concrete are the same for most walkways, driveways and slabs. As soil underneath a concrete slab shrinks, settles or washes away, this leaves empty space (or voids). Because the soil is no longer supporting the slab, this causes the concrete to sink.

PolyLevel uses a high-density polyurethane foam to fill voids and stabilize and lift sinking concrete slabs. The expanding properties of the two-part urethane formula allows for accurate leveling of the slab. The result is a waterproof repair that's much more permanent than mud jacking and other common concrete repair methods.

PolyLevel Step 1

Step 1: Small 5/8" holes are strategically drilled in the slab.

PolyLevel Step 2

Step 2: Injection ports are installed.

Poly Level Step 3

Step 3: Polyurethane foam is injected beneath the concrete to fill voids and raise the slab.

PolyLevel Step 4

Step 4: Holes and control joints are sealed.

Repair Your Driveway, Pool Deck and More in Southern Florida

NSquare, Inc. has the expertise and equipment to quickly raise and level many types of concrete slabs, so you can use those areas around your home without worry.


If you have a driveway that's sunken or uneven, replacing it might not be the most cost-effective option. We can use PolyLevel to raise the concrete, creating an even surface and preventing further sinking and cracking. Our driveway leveling process can eliminate unsafe conditions and improve the curb appeal of your home. The life of your driveway will also be extended for years without the need for replacement.

PolyLevel Driveway Before


PolyLevel Driveway After


Sidewalks & Walkways

An uneven sidewalk not only looks bad, but it creates a tripping hazard. If the concrete slab is still intact, don't waste your money on replacing the concrete. With PolyLevel, we can raise your sunken sidewalk, allowing you to walk on the sidewalk within an hour. Our sidewalk leveling process saves you time and money.

PolyLevel Sidewalk Repair Before


PolyLevel Sidewalk Repair After


Patios, Porches & Landings

You shouldn't have to worry about tripping on uneven concrete when relaxing on your patio. You might also notice your table and chairs wobbling because of uneven concrete. Concrete leveling can eliminate these issues and provide a safe, even surface.

PolyLevel Landing Repair Before


PolyLevel Landing Repair After


Concrete Floors & Slab Foundations

If your home has sloped floors, cracks in floor tiles, gaps below baseboards, gaps at the tops of walls or sticking doors, you might have a concrete settlement problem. Our use of polyurethane foam for concrete floor leveling is a long-lasting alternative to self-leveling treatments.

PolyLevel Concrete Slab Repair Before


PolyLevel Concrete Slab Repair After


Concrete Pool Decks

Has your concrete pool deck seen better days? Worried about the cracked, uneven deck causing tripping hazards? PolyLevel can raise your concrete pool deck back to its original position and help restore your backyard pool area into the oasis it once was.

PolyLevel Pool Repair Before


Poly Pool After


Looking for commercial, industrial or municipal solutions?PolyLevel can be used for a broad range of applications, such as concrete lifting and leveling, void filling, soil stabilization and leak repair. Learn more about our commercial PolyLevel services in Florida.

The Cost of Doing Nothing

It can be tempting to live with a sunken driveway slab or uneven patio. You change your routine. You remember to watch out for those trip hazards. You get used to the unsightly nature of the problem. But even if you do accept these issues, they can cost you serious money when it comes time to sell your home. Depending on the issue, concrete problems can force you to discount your home by 5 percent or more at sale time. For a $300,000 home that’s $15,000. For a $750,000 home, that’s $37,500! As you can see, the cost of repair often pales when compared to the cost of doing nothing.

One other thing: Because concrete problems don’t get better with time, they’ll never be less expensive to fix today. 

Why We Use PolyLevel over Mud Jacking

Traditional concrete leveling methods such as mud jacking or slabjacking are messy, require a lot of downtime and often don't provide a long-term fix. PolyLevel concrete leveling offers many advantages compared to traditional concrete leveling methods; here are a few:

Foam Injection
Mud Jacking or Slabjacking
Cure Time 15 minutes 24 hours or more
Material Weight 2 lbs per cubic foot 100 lbs per cubic foot
Hole Size 5/8" (size of a penny) 1" (size of a quarter)
Waterproof Yes No

Why We Recommend PolyLevel Over Slab Replacement

When it comes time to fix a sunken driveway, patio, walkway or pool deck, some people may be tempted to rip the whole thing out and start again. While the idea of brand-new concrete might sound appealing, there are several factors that should be considered

Slab replacement: 

  • Can be expensive
  • Is disruptive — concrete slabs can take days or even weeks to cure
  • Involves pouring new concrete over bad soil, which only delays future problems
  • Can leave an unsightly patchwork of old and new concrete

PolyLevel, on the other hand, is:

  • A lightweight solution that does not further compromise existing soil
  • An environmentally friendly material that will not degrade over time
  • Is waterproof and won’t wash out
  • High capacity, allowing for lifting of heavy loads
  • Cures quickly — concrete can be used in hours, not weeks

Answers to Frequently Asked Questions

Is PolyLevel expensive?

Polylevel is actually quite cost-effective because it offers a solution that is long-lasting, unlike mudjacking and slab replacement. And, your concrete will never cost less to repair than it does right now.

How soon can I use my driveway/patio/pool deck/walkway?

PolyLevel cures very quickly. In fact, you could theoretically drive your car over a driveway slab just 15 minutes after it’s been lifted with Polylevel — though we recommend you wait until the next day.

Is PolyLevel environmentally friendly?

Yes. PolyLevel is made from an environmentally friendly material that is waterproof and won’t degrade over time. This means it won’t leach harmful chemicals into the surrounding soil.

Can I get PolyLevel from another contractor?

No. PolyLevel is a proprietary product developed by Supportworks and is available exclusively from NSquare and other concrete repair contractors in the Supportworks network. NSquare is the only Supportworks dealer in Southern Florida. 

I want to lift and level my concrete. What’s the next step?

Call or click for an appointment. One of our design specialists will come to your home and inspect your concrete. He or she will then sit down with you and explain what caused your issues, how they can be fixed and exactly what it will cost.

Sign Up for Your Free Concrete Repair Inspection Today

If your concrete is sunken but structurally sound, why replace it? Replacing your concrete won't fix the underlying soil problem that's causing the settlement. There’s only one solution that both raises your concrete and address the reason it sunk — PolyLevel. 

NSquare, Inc. is your certified concrete leveling contractor in Sarasota, Lee, Collier, Charlotte, Glades, Hendry, Monroe, Miami-Dade, Broward, and Palm Beach. Contact us to schedule your no-obligation, on-site inspection today!