Slab Cracks: Causes and Cures

Effective Crack Repair Starts with Identifying the Cause

We depend on concrete slabs, using them for sidewalks, patios, driveways, garage floors, airport runways and more. When a slab cracks, it usually has an impact. A concrete surface that needs to be smooth, safe and solid can suddenly become unstable. It's important to repair this damage for safety and functionality. A sound repair depends on a basic understanding of what causes slab cracks in the first place.

PolyLevel technicians are armed with extensive knowledge about the nature of slab sinking and its symptoms. If you've noticed cracks on your property, contact your local contractor for a free estimate for repairs!

Schedule a free estimate

Replacing or patching sunken sidewalks or driveways may not stop further sinking. PolyLevel tackles the underlying soil issues causing the damage.

Nothing Causes Slab Cracks Like Voids

Empty space beneath a concrete slab is one of the most common causes of concrete cracks. A concrete slab can support a tremendous amount of weight, but only if it has solid support from the soil below. If the supporting soil compresses, shrinks or is washed away, the result is a void. Without support for the heavy concrete, cracks will eventually form, causing the affected section to sink or settle into the soil beneath the void.

Fresh Concrete vs. Foam

There are several methods to repair cracked concrete and settled slabs:

Demolition & Replacement removes the settled concrete section and pours new concrete. However, concrete replacement can be expensive and time-consuming.
Skim Coat to apply a thin layer of patching mortar over the cracked and sunken slab. But skim coats tend to be unsightly and prone to cracking.
Mud Jacking involves pumping mortar beneath the slab to lift it using hydraulic pressure. This method adds weight to the soil and may compress and settle further.

Here is why PolyLevel® foam injection is often a better choice:

Uses expanding, high-density polyurethane foam to lift slabs and stabilize loose soil.
Non-invasive and straightforward: foam is injected through small 5/8-inch holes beneath the slab.
Expands quickly to fill voids and lift concrete to its proper level.
More affordable than removing and repouring concrete.
Hardens and cures in minutes, restoring full functionality in less than a day!

Start with a Free PolyLevel Estimate Today

PolyLevel high-density polymer is the perfect alternative to expensive, outdated and faulty concrete repair methods. The expanding foam formula restores sunken, cracked concrete in outdoor and indoor applications, including commercial and residential patios, pool decks, driveway aprons and concrete walkways.

Find your local concrete leveling contractor to schedule a free estimate for PolyLevel!

Your Local Dealer:

Saber Foundation

7301 Madison St Paramount, CA 90723

More Details

Change Location

Looking for a price? Get a no cost, no obligation free estimate.