Uneven concrete patios create trip hazards, cause furniture to wobble, and allow water to collect in low areas. As slabs settle, small height changes and poor drainage can make the surface unsafe and lead to ongoing damage and more costly repairs.
Foamjection lifts sunken patio slabs back into position without removing or replacing the concrete. Our polyurethane concrete lifting process restores support beneath the patio, improves drainage, and creates a safer, more level outdoor surface.
Patios sink when the soil beneath the concrete loses strength. Common causes include:
When support is lost, patio slabs settle unevenly and continue to shift if left unaddressed.
You may need patio leveling if you notice:
Addressing these issues early helps restore function and prevent further damage.
If other outdoor concrete has also settled, walkway & sidewalk leveling, porch leveling, or concrete slab leveling may be needed to stabilize connected surfaces and maintain consistent height across your outdoor areas.
Foamjection levels patios by injecting high-density polyurethane foam beneath the slab. The foam expands to fill voids, lift the concrete, and restore firm support below the surface.
Most patio leveling projects are completed in one visit, and many surfaces are ready for use the same day.
Homeowners choose patio leveling because it restores a usable outdoor space without the cost and disruption of replacement. Lifting improves safety, drainage, and appearance while keeping the existing concrete in place.
For patios that are intact but uneven, leveling is often the most practical solution.
Patios become uneven when soil beneath the slab erodes, shifts, or settles over time. Poor drainage and freeze-thaw cycles often contribute to this movement.
In many cases, yes. Patio leveling is often a better option than replacing the concrete when the slab is still structurally sound.
Leveling lifts and stabilizes the existing patio instead of tearing it out. This keeps costs lower, shortens the repair timeline, and avoids the mess and disruption of demolition. Many patio leveling projects are completed in just a few hours, and the space is ready immediately.
Concrete replacement is usually only necessary when a patio is severely cracked, broken apart, or failing structurally. For sunken or uneven patios, leveling is typically the more practical, affordable, and efficient solution.
Most projects are completed in a single visit – in just a few hours. The process is clean, non-disruptive, and you won’t have big trucks in your yard.
Yes. Immediately.
Yes. Patio leveling can help eliminate water pooling by restoring the proper slope of the concrete.
By lifting low areas back into position, leveling allows water to drain away from the patio instead of collecting on the surface, helping reduce moisture issues and surface damage.
After leveling, the surface will look level and intact, with only small access points where the foam was injected. These holes are patched once lifting is complete and are much less noticeable than replacement seams.
Over time, the patched areas tend to blend in further as the concrete weathers, making them less visible. For colored or decorative concrete, we take care to use patch materials that closely match the surrounding surface whenever possible. While an exact color match cannot always be guaranteed, the goal is to keep the repair as subtle as possible.
Because the lifting process happens beneath the slab, the existing patio surface and finish are preserved, helping maintain the look of the concrete while restoring proper support and stability.
Yes. The foam is safe to use around patio areas.
The polyurethane foam is installed below the concrete and cures into a stable material that stays in place. It does not leach into the soil, does not release harmful chemicals, and does not affect nearby plants, grass, or landscaping.
Because the foam is lightweight and applied beneath the slab, it provides support without disturbing surrounding outdoor surfaces. This makes it a safe and reliable option for patios, walkways, pool decks, and other exterior concrete areas.
You can request a free estimate by visiting our Contact Us page and submitting the form. Our team will review your request and explain the next steps.
Foamjection helps homeowners with expert foam concrete leveling throughout.
Foamjection is the nationwide leader in polyurethane concrete lifting—powered by HMI. Backed by 50+ years of expertise, 20,000+ customers served, and a proven national system, we help homeowners across the U.S. fix sinking concrete using advanced foam injection for long-term stabilization. From uneven walkways and driveways to patios and garage floors, our process delivers reliable concrete repair while helping homeowners save up to 70% compared to replacement.
Looking for a fast, affordable alternative to tearing out concrete?
