Fix sunken concrete fast and affordably without the cost and mess of complete replacement.
Sunken concrete happens when the soil underneath compresses, washes away, or shifts. Your driveway, sidewalk, or patio was originally level, but over time the ground beneath it changed. Voids form under the slab. Soil compaction occurs unevenly. Water erosion carries soil particles away. The concrete has nowhere to go but down.
This creates real problems beyond just appearance. Uneven concrete becomes a trip hazard that could injure someone and create liability. Water pools in low spots instead of draining away, leading to ice in winter and accelerated deterioration. Gaps between settled sections and adjacent surfaces get wider over time. The longer you wait, the worse it gets.
Concrete leveling solves the problem by filling the voids underneath and lifting the slab back to its original position. We drill small holes through the concrete and pump material underneath that expands to fill empty spaces and raise the slab. The process takes hours instead of days, costs a fraction of replacement, and creates minimal mess. Your concrete is structurally sound, it just needs support underneath, and leveling provides exactly that.
Any settled concrete surface can potentially be leveled as long as the concrete itself remains in good condition. We handle leveling projects throughout residential and commercial properties in the Lewiston area.
Driveway sections often settle near the garage door or at transitions between the driveway and street. The constant weight of vehicles driving over these areas compresses soil underneath. Garage aprons settle away from the building, creating a gap or drop-off that scrapes vehicle undercarriages. Leveling raises these sections back to proper height, eliminating bumps and preventing damage to your vehicles.
Settled sidewalk sections create dangerous trip hazards. When one section sits even an inch lower than the adjacent section, people can catch their feet and fall. This is especially dangerous for elderly residents or anyone with mobility challenges. Leveling eliminates these height differences and creates smooth transitions. Public sidewalks must meet accessibility standards, and leveling can restore compliance without full replacement.
Patio sections that have sunk create uneven surfaces for furniture and water pooling after rain. Pool decks must drain properly to prevent standing water and ice formation. When sections settle, water flows toward the pool or house instead of away. Leveling restores proper drainage slopes and creates stable surfaces. This prevents ongoing water damage and makes your outdoor spaces more enjoyable and safer.
Front steps and stoops that settle away from the house create gaps that let water into your foundation and make entries difficult. The gap widens each year as settling continues. Leveling lifts the steps back against the house, closes the gap, and restores proper entry access. This prevents water infiltration and the much larger problems that follow.
If your concrete has extensive damage beyond just settling, we also offer complete repair and replacement services. For new concrete projects, check out our driveway installation work.
We use modern polyurethane foam injection, also called polyjacking, to lift and level concrete efficiently. This proven method provides superior results compared to older mudjacking techniques using heavy slurry mixtures.
We start by thoroughly inspecting your settled concrete to determine if leveling is the right solution. We check the concrete condition, measure how much it has settled, and identify what caused the sinking. Not all concrete is a good candidate for leveling. Severely cracked or deteriorated concrete may need replacement instead. But if the concrete remains structurally sound, leveling provides an excellent solution at much lower cost than replacement.
We drill small holes through the settled concrete, typically about the size of a penny. These holes are strategically placed based on where the slab needs lifting and where voids exist underneath. The holes are much smaller than old mudjacking methods required and are barely noticeable after we patch them. We drill only as many holes as necessary to achieve proper lifting.
We inject expanding polyurethane foam through the holes under precise control. The foam flows into all voids beneath the slab, then expands and hardens within minutes. As it expands, it gently lifts the concrete back to the correct height. We monitor constantly using laser levels to ensure accurate lifting. The foam is incredibly light compared to concrete, so it will not contribute to future settling. It also repels water and will not wash away like soil.
After achieving the desired level, we patch the injection holes with concrete that closely matches your existing surface. The patches are small and blend in well, especially on textured surfaces. We clean up any foam residue and remove all equipment. Your leveled concrete is ready to use immediately. The entire process typically takes just a few hours for most residential projects.
Ready to fix your sunken concrete? Contact our Lewiston team for a free inspection and quote on leveling your settled concrete surfaces.
