When concrete sinks, it can create uneven surfaces, drainage issues, and safety concerns around your property. Replacing the slab may seem like the obvious solution, but concrete lifting can often restore it with less disruption.
PolyLevel and mudjacking are two common repair methods, and each works differently beneath the surface. Knowing how they compare can help you decide which option makes the most sense for your Hanover home.
Why Concrete Sinks Around Hanover Homes
Concrete slabs rely on the soil beneath for support. When that soil shifts, settles, or washes away, empty spaces can form. Without even support, the concrete may begin to sink, tilt, crack, or separate from nearby surfaces.
Water is one of the most common causes of concrete settlement. Poor grading, overflowing gutters, damaged downspouts, and uncontrolled runoff can carry soil away from beneath a driveway, sidewalk, patio, or pool deck.
Seasonal temperature changes can also contribute to movement. Freeze-and-thaw cycles cause soil to expand and contract, which may gradually weaken the base beneath exterior concrete. You may notice new height differences after winter or following periods of heavy rain.
Improper soil compaction is another frequent cause. If the ground wasn’t packed correctly before the concrete was poured, the soil may continue settling for years. This problem often appears near foundations, utility trenches, additions, or recently disturbed areas.
Common signs of concrete settlement include uneven joints, widening cracks, standing water, tilted steps, and driveway slabs that sit below the garage floor. These symptoms often indicate a support problem beneath the surface. Concrete lifting can correct the visible settlement, but the best repair plan should also address the reason the slab moved.
How Mudjacking Lifts Settled Concrete
Mudjacking, also called slabjacking, has been used to raise sunken concrete for decades. During the process, a contractor drills holes through the affected slab and pumps a thick mixture underneath it. That mixture usually contains water, soil, sand, cement, or similar materials.
As the material fills the empty spaces below the concrete, pressure pushes the slab upward. The contractor continues adding the mixture until the surface reaches the desired height. Afterward, the drilled holes are patched.
Potential Advantages of Mudjacking
Mudjacking is widely recognized and may cost less upfront than polyurethane concrete lifting. It can work for sidewalks, patios, driveways, and other slabs when the concrete remains structurally sound, and the supporting soil is stable enough.
You may consider mudjacking when the initial price is your main concern, the repair area is large and open, and the slab doesn’t require highly precise adjustments. It may also be suitable when the soil beneath the slab can handle the additional weight of the slurry.
Possible Drawbacks of Mudjacking
Mudjacking material is heavy. If your concrete originally settled because the soil beneath it was weak, adding a dense mixture may place more pressure on that same ground. The repair may raise the slab, but it doesn’t always eliminate the conditions that caused the settlement.
Mudjacking also requires relatively large injection holes, which may remain noticeable after they’re patched. Because the slurry doesn’t expand like polyurethane foam, controlling the lift can be more difficult in areas that require small, precise adjustments.
Before choosing mudjacking, ask how the contractor will evaluate the soil, control the lift, and reduce the risk of future movement.
How PolyLevel Concrete Lifting Works
PolyLevel uses expanding polyurethane foam instead of a heavy cement-based slurry. A trained installer begins by drilling small injection holes through the settled concrete. The polyurethane material is then delivered beneath the slab, where it reacts, expands, and fills the surrounding voids.
As the foam expands, it gently raises the concrete. The installer can monitor the slab throughout the process and make gradual adjustments. This controlled lifting is especially helpful near garage entrances, steps, adjoining sidewalks, foundations, and other surfaces where precise alignment matters.
Why the Material Matters
Polyurethane foam is lightweight, so it adds far less weight beneath the concrete than a traditional mudjacking mixture. That difference can be important when the soil has already shown signs of weakness or settlement.
The foam is also resistant to water. It won’t wash away as easily as materials that may be affected by ongoing moisture movement. This makes PolyLevel a practical option for areas where erosion, runoff, or drainage problems have contributed to sinking concrete.
Practical Benefits for Homeowners
PolyLevel uses smaller injection holes than mudjacking, which can make the completed repair less noticeable. The material also cures quickly, so many repaired surfaces can return to regular use sooner than they would after removal and replacement.
Because the foam expands gradually, the installer can make controlled adjustments during the lift. That precision can be especially useful where one slab meets another surface, such as at a garage threshold, stair landing, pool deck, or front walkway.
PolyLevel may be used to lift driveways, sidewalks, patios, pool decks, garage floors, and other slab-on-grade concrete when the existing slab remains suitable for repair.
PolyLevel vs. Mudjacking: Comparing the Key Differences
Both PolyLevel and mudjacking are designed to raise settled concrete, but the material placed beneath your slab affects the installation process, appearance, precision, weight, and moisture resistance.
Material and Added Weight
Mudjacking uses a thick mixture of water, soil, sand, and cement to fill the space beneath a sunken slab and push it upward. PolyLevel uses an expanding polyurethane foam that spreads beneath the concrete before hardening.
Because mudjacking material is much heavier, it adds more pressure to the soil below. PolyLevel is significantly lighter, which may be helpful when weak or poorly compacted soil contributed to the original settlement.
Hole Size and Appearance
Mudjacking typically requires larger access holes. PolyLevel uses smaller injection points, which may make the completed repair less noticeable.
This difference can matter on visible surfaces such as patios, pool decks, front walkways, and decorative concrete areas. Although both methods require patching, smaller holes usually leave a less prominent repair mark.
Lifting Precision
PolyLevel foam expands gradually, allowing the installer to make controlled adjustments. Mudjacking can also raise slabs effectively, but the denser slurry may offer less precision in areas where small elevation changes matter.
Precision becomes especially important around steps, garage floors, adjoining slabs, and other fixed surfaces. Raising a slab too far can create a new height difference or place stress on nearby concrete.
Curing Time
Mudjacking material may require more time before the surface can return to regular use. PolyLevel foam cures quickly, which can reduce downtime around your property.
If you’re repairing a frequently used driveway, walkway, or entry area, a shorter curing period can make the project more convenient.
Water Resistance
Traditional mudjacking mixtures may be affected by continuing moisture movement. Polyurethane foam is designed to resist water, which can make it better suited for areas with erosion or drainage concerns.
However, no lifting method should be treated as a substitute for correcting active drainage problems. If water continues moving soil away from the slab, nearby areas may still settle.
Which Concrete Surfaces Can Be Lifted?
Concrete lifting works best when a slab has settled but remains mostly intact. The goal is to preserve and reposition the existing concrete, not rebuild material that has already broken down.
Common residential applications include:
- Driveways
- Sidewalks
- Patios
- Pool decks
- Garage floors
- Concrete steps
- Walkways
- Driveway aprons
Whether one of these surfaces can be lifted depends on more than its location. The slab must still have enough structural strength to move as a single section, and the surrounding conditions must allow it to be raised without damaging nearby concrete, foundations, steps, or other fixed features.
Lifting may be a practical option when settlement has created an uneven transition, a tripping hazard, or a low area where water collects. It can also help restore a more functional slope when part of a slab has dropped toward your home or another structure.
However, concrete lifting isn’t suitable for every repair. If the slab is severely cracked, crumbling, badly spalled, structurally weakened, or broken into loose pieces, replacement may provide a more reliable result. A professional inspection can help you determine whether lifting, partial replacement, or full replacement is the right approach.
Cost, Longevity, and Overall Repair Value
Price matters when you’re comparing PolyLevel and mudjacking, but the lowest estimate isn’t always the least expensive solution over time. You’ll need to consider how long the repair may last, how much disruption it creates, and whether it addresses the voids beneath your concrete.
Mudjacking may have a lower initial price because it uses common materials and established equipment. However, the weight of the slurry and its potential exposure to moisture can affect long-term performance. If the soil continues settling or water keeps moving beneath the slab, another repair may eventually be necessary.
PolyLevel often costs more upfront, but its lightweight material, controlled expansion, and water resistance may provide greater long-term value. Smaller injection holes and quicker curing can also reduce inconvenience and improve the appearance of the completed repair.
Several factors can affect the total cost of concrete lifting:
- The number of slabs being raised
- The size of the affected area
- The amount of settlement
- The depth of underground voids
- Access to the repair location
- The condition of the concrete
- The lifting material used
- Any related sealing or drainage work
You should also consider the cost of delaying the repair. Uneven concrete may worsen over time, increase liability, direct water toward your foundation, or eventually require complete replacement.
Ask for a written estimate that explains the repair area, lifting method, included services, and warranty terms. Comparing detailed proposals will give you a clearer picture than comparing price alone.
Don’t Overlook Drainage and Soil Conditions
Raising your concrete corrects the visible problem, but it may not fix the cause of the settlement. If water continues washing soil away, the slab or nearby concrete could move again.
Look for conditions that may be contributing to soil erosion:
- Water pooling beside concrete
- Downspouts emptying near slab edges
- Overflowing or clogged gutters
- Soil gaps beneath sidewalks or driveways
- Eroded areas along concrete edges
- Patios sloping toward the house
- Cracks or joints that collect water
You should inspect your gutters and downspouts before or after a lifting project. Water needs to move away from concrete surfaces and your foundation. A downspout that releases water beside a driveway, patio, or sidewalk can gradually erode the supporting soil.
You should also examine the slope around the affected area. Soil should generally direct water away from your home rather than toward it. Low spots near concrete edges may allow water to collect and seep beneath the slab.
Cracks and open joints can contribute to the problem as well. Water can enter through gaps between slabs, around steps, or along the driveway edge. Once beneath the concrete, repeated water movement may carry away loose soil.
Ask your contractor whether crack sealing, joint sealing, grading improvements, or downspout extensions should be included in the repair plan. Treating both the slab and surrounding moisture conditions can help reduce the chance of repeated settlement.
Questions to Ask a Concrete Lifting Contractor
Choosing the right contractor is just as important as choosing the lifting method. A professional should inspect the affected slabs, evaluate the surrounding conditions, and explain what the repair can realistically accomplish.
Before approving a project, ask:
- Is my concrete structurally suitable for lifting?
- Which lifting material will you use?
- Why is that material appropriate for my property?
- How large will the injection holes be?
- How will you control the lift?
- Will existing cracks close?
- Does the estimate include void filling and patching?
- When can I use the repaired surface?
- What warranty is included?
- What happens if the slab can’t be fully lifted?
A trustworthy contractor should tell you when replacement is the better option instead of trying to lift severely damaged material.
Your written proposal should identify each area included in the project. A description such as “repair driveway” may be too vague if your driveway contains several separate slabs. The estimate should explain which sections will be lifted and whether patching, sealing, cleanup, and void filling are included.
You should also review how long the area needs to remain unused. Ask when you can safely walk, drive, or place furniture on the repaired surface. Finally, look beyond price. Experience, communication, materials, workmanship, and a clear repair strategy all contribute to the value of your concrete lifting project.
Choose the Right Concrete Repair for Your Hanover Home
PolyLevel and mudjacking can both lift sunken concrete, but PolyLevel offers several advantages for many Hanover homes. Its lightweight foam, smaller injection holes, quick curing time, water resistance, and controlled expansion make it a strong option for restoring stable but uneven slabs.
C.A.R.E. Property Services understands how concrete settlement can connect to water movement, erosion, and broader property conditions. We’ll help you evaluate the affected area and identify a practical repair approach.
Don’t let uneven concrete become a larger safety or drainage problem. Contact us to discuss your Hanover concrete lifting needs and take the next step toward a safer, more usable property.