Concrete Leveling

Concrete Leveling in Frederick & Nearby in Pennsylvania and Maryland

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PolyLevel® 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 PolyLevel®, 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 PolyLevel, 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 1-844-984-5052 or click below to request a free cost estimate on PolyLevel concrete repair in York, Frederick, Hagerstown, and nearby cities in Pennsylvania and Maryland.

Advantages of PolyLevel®

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Non-invasive installation

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Quick installation and cure time

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Accurate lift for clean results

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Adjustable for loads of all sizes

How PolyLevel® 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.

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

PolyLevel step 1: drilling injection holes


Small 5/8” holes are strategically drilled in the slab.

PolyLevel step 2: installing injection ports


Injection ports are installed.

PolyLevel step 3: injecting polyurethane foam


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

PolyLevel step 4: sealing holes and control joints


Holes and control joints are sealed.

PolyLevel® 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 circle on each photo to see before and after examples of concrete raising.

Cracked uneven driveway Concrete driveway after PolyLevel


If your driveway has become sunken or uneven, replacing it might not be the most cost-effective option. We can use PolyLevel 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 the curb appeal. Utilizing PolyLevel extends the life of your driveway by years, eliminating the need for replacement.

Sinking uneven concrete sidewalkSidewalk after 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 PolyLevel 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.

Sunken concrete front porchConcrete porch after leveling

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.

Uneven concrete garage floorGarage floor after leveling

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.

Sinking concrete pool deckConcrete pool deck after leveling

Concrete Pool Decks

If your concrete pool deck as seen better days or you're worried about the cracked, uneven deck causing tripping hazards, we have a solution. PolyLevel 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? PolyLevel 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 PolyLevel services in Pennsylvania and Maryland.

Traditional Concrete Lifting vs PolyLevel®

Before PolyLevel, 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! PolyLevel offers many advantages over traditional concrete leveling methods:


Foam Injection
Mudjacking 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

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. PolyLevel material is lightweight, so it won't add weight to weak soil. Best of all, PolyLevel 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.

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

our service area

We serve the following areas

  • Adamstown
  • Big Pool
  • Boonsboro
  • Cascade
  • Clear Spring
  • Emmitsburg
  • Fairplay
  • Finksburg
  • Frederick
  • Funkstown
  • Hagerstown
  • Hampstead
  • Ijamsville
  • Jefferson
  • Keedysville
  • Keymar
  • Knoxville
  • Libertytown
  • Marriottsville
  • Maugansville
  • Middletown
  • Monrovia
  • Mount Airy
  • Myersville
  • New Market
  • New Windsor
  • Point Of Rocks
  • Rocky Ridge
  • Rohrersville
  • Sabillasville
  • Saint James
  • Sharpsburg
  • Smithsburg
  • Sykesville
  • Taneytown
  • Thurmont
  • Union Bridge
  • Walkersville
  • Westminster
  • Williamsport
  • Woodsboro
  • Blue Ridge Summit
  • Fairfield
  • Littlestown
  • Quincy
  • Rouzerville
  • Shady Grove
  • State Line
  • Waynesboro
  • Zullinger
Our Locations:

K&M Outdoor
10972 Wayne Hwy
Waynesboro, PA 17268
Service Area
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