Concrete Leveling

Concrete Leveling in Frederick & Nearby in Pennsylvania and Maryland

Poly Foam Quickly & Effeciently Lifts Sunken Concrete

Do you have sinking concrete around your home? K&M Outdoor’s concrete lifting and leveling services have you covered. We can lift and restore your concrete quickly and effectively, helping eliminate dangerous trip hazards and pooling water problems. We use Poly Foam, a proven polyurethane foam injection solution, to level concrete driveways, walkways, patios, pool decks, and slabs throughout the South Central PA and Northern MD areas.

With Poly Foam, we can quickly restore the appearance and safety of your concrete. Better yet, we can do it without the mess or cost of replacement or traditional mudjacking.

Call us at 717-765-0010 or click below to request a free cost estimate on Poly Foam concrete repair in York, Frederick, Hagerstown, and nearby cities in Pennsylvania and Maryland.

Advantages of Poly Foam

Non-invasive installation

Quick installation and cure time

Accurate lift for clean results

Adjustable for loads of all sizes

How Poly Foam Works

Whether it’s a driveway, walkway, patio, garage floor, or pool deck, the causes of concrete settlement and sinking are the same. As soil beneath a concrete slab shrinks, settles or washes away, it leaves voids underneath the slab. As a result, the soicl can no longer support the slab, causing the concrete to sink and creating an uneven surface.

Poly Foam 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. Compared to mudjacking and other common concrete repair methods, Poly Foam is a more permanent, waterproof repair.

Poly Foam Applications

K&M Outdoor has the expertise and equipment to quickly raise and level many types of slab-on-grade concrete, so you can use those areas around your home without worry.

Click and drag the arrows on each photo to see before and after examples of concrete raising.

driveway concrete after being repaired


If your driveway has become sunken or uneven, replacing it might not be the most cost-effective option. We can use Poly Foam to raise the concrete and create an even surface while also preventing further sinking and cracking. Our driveway leveling process eliminates dangerous conditions and improves your home’s curb appeal. Utilizing Poly Foam extends the life of your driveway by years, eliminating the need for replacement.

concrete sidewalk after concrete leveling

Sidewalks & Walkways

An uneven sidewalk isn’t just unsightly; it also puts the health and safety of you and your guests at risk by creating a tripping hazard. If the concrete slab is still intact, don’t waste your money on replacing the concrete. We can use Poly Foam to quickly raise your sunken sidewalk, allowing you to walk on the sidewalk within an hour. Our sidewalk leveling process saves you time and money.

An after picture of a clean patio with sealed cracks in Hagerstown

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.

cement landing with caution tape above it

Concrete Floors & Slab Foundations

Does your home have 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.

Concrete Pool Decks

If your concrete pool deck has seen better days or you’re worried about the cracked, uneven deck causing tripping hazards, we have a solution. Poly Foam can raise your concrete pool deck back to its original position and help restore your backyard pool area into the luxurious oasis it once was.

Looking for commercial, industrial or municipal solutions? Poly Foam can be used for a broad range of applications, including concrete lifting and leveling, void filling, soil stabilization, and leak repair. Learn more about our commercial Poly Foam services in Pennsylvania and Maryland.

Traditional Concrete Lifting vs Poly Foam

Before Poly Foam, there were two basic options for lifting and leveling concrete: mudjacking and slab replacement. Unfortunately, both approaches have limitations and disadvantages. The good news? There’s a better solution! Poly Foam offers many advantages over traditional concrete leveling methods:


 Poly Foam InjectionMudjacking or Slabjacking
Cure Time15 minutes24 hours or more
Material Weight2 lbs per cubic foot100 lbs per cubic foot
Hole Size5/8″ (size of a penny)1″ (size of a quarter)

Concrete Replacement

Replacing a concrete slab is both expensive and disruptive. Concrete slabs can take days, or even weeks, to fully cure. Pouring new concrete over bad soil often delays future problems and leaves unsightly patchwork. Poly Foam material is lightweight, so it won’t add weight to weak soil. Best of all, Poly Foam allows for use of concrete within hours, not weeks.

Get a free concrete leveling estimate today

If your concrete is structurally-sound, why replace it? Replacing the concrete won’t fix the soil problem that’s causing the settlement. Concrete leveling is the answer. Contact K&M Outdoor today for an on-site inspection and free cost estimate in Frederick, York, Hagerstown, Chambersburg, Westminster, Hanover, Waynesboro, Fayetteville, Finksburg, Etters and the surrounding areas.