Foundation issues can show up fast when concrete starts to sink. Cracks, gaps, and uneven slabs often start at driveways, sidewalks, or porches. Concrete lifting is one of the best ways to bring slabs back to level without the cost of full replacement.
We use polyurethane foam, a light but strong product that makes the job last. In this guide, we cover what concrete lifting is, how much it costs, and why it’s a smart choice over tearing out and replacing concrete.
What is Concrete Lifting?
Concrete lifting is the process of raising sunken slabs. This is done by filling the space under the concrete with a material that pushes it back into place. Below are the different types of concrete lifting methods:
- Mudjacking: The old method. It uses a heavy mix of mud and cement.
- Polyurethane Foam (Polyjacking): The modern fix. Closed-cell foam that supports 2.8 pounds per square inch. It’s light, clean, and strong.
Key Takeaway: Polyurethane foam is a better option than mudjacking for most jobs today.
How Much Does Concrete Lifting Cost?
Cost depends on the size of the area and how far it has settled. Polyjacking is usually about one-third the cost of replacing concrete. We don’t lift the entire slab, only the part that has sunk.
Most projects we see include:
- Driveways
- Sidewalks
- Porches
- Garage aprons
Pro Tip: Cost is based on the problem spot, not the whole slab.
Need expert help with concrete lifting? Contact Foundation 1 for a free consultation.
How Long Does Concrete Lifting Last?
Polyjacking can last for decades if drainage is not an issue. Problems happen when water moves under your slab, often from a neighbor’s yard or poor grading. This water washes soil away and creates new gaps.
Here are the common causes of sinking slabs:
- Drainage flowing toward your home
- Loose soil left after home construction
- Water pooling near driveways or porches
Key Takeaway: Fix drainage issues first, and your lifted concrete can stay level for years.
Why Concrete Settles in the First Place
Most sinking starts during home building. When crews dig a foundation, they backfill extra soil around it. Driveways and patios are then poured on this loose soil. Over time, the soil shifts, leaving gaps that cause the slab to drop.
Signs You May Need Concrete Lifting
- A gap where the driveway meets the garage
- Sidewalks that are uneven
- Porch steps pulling away from the home
Benefits of Concrete Lifting
- Lower Cost: About one-third the price of replacement.
- Fast Repair: Most jobs take only a few hours.
- Clean Work: Small drill holes, no demo.
- Durable: Foam doesn’t break down or wash away.
Pro Tip: Lifting not only makes slabs safe but also improves curb appeal.
In Summary
Concrete lifting is a smart, low-cost way to fix uneven driveways, sidewalks, and porches. Polyurethane foam makes the repair strong and lasting. The key is to control water around your home so the repair holds up for years.
We’ve seen the difference it makes for families who choose lifting instead of full replacement. Contact Foundation 1 today for a free consultation and let us restore your concrete with confidence.
