What Is Polyurethane Concrete Raising? A Simple Homeowner’s Guide.

Polyurethane concrete raising is a way to lift and level sunken concrete by injecting a strong, lightweight foam underneath it instead of tearing it out and replacing it.

It fixes uneven sidewalks, driveways, patios, and pool decks quickly, cleanly, and at a much lower cost than replacement.

TL;DR Summary

  • Fixes sunken concrete without replacement

  • Small drill holes (about the size of a dime)

  • Most jobs finished in a few hours

  • Ready to use the same day

  • Costs about half of full replacement

  • Strong, lightweight, and eco-friendly

What Is Polyurethane Concrete Raising (In Plain English)?

Over time, concrete can sink when the soil underneath settles, washes away, or compresses. The concrete itself is often still solid — it’s just no longer level.

Polyurethane concrete raising works by drilling small holes (about 5/8 inch) into the sunken slab and injecting a specialized expanding foam underneath. That foam fills empty spaces, lifts the concrete back into place, and hardens to provide long-lasting support.

Think of it like gently lifting a sagging table leg instead of buying a whole new table.

Key Benefits for Homeowners

Minimal Disruption

Only small, nearly invisible holes are drilled into the concrete. There’s no heavy demolition, no torn-up yard, and no mess left behind. Your landscaping stays intact.

Quick and Efficient

Most concrete raising projects are completed in just a few hours, and the area is typically ready to use the same day — no waiting days or weeks for curing like new concrete.

Cost-Effective

Polyurethane concrete raising usually costs about half as much as full concrete replacement, making it one of the smartest repair options when the concrete itself is still in good condition.

Durable and Lightweight

The foam weighs only about 2 pounds per cubic foot, so it won’t overload or further compress the soil beneath your slab. Despite being lightweight, it’s extremely strong and designed to last for years.

Environmentally Friendly

Many polyurethane foams are made using renewable and recycled materials, making this a greener option compared to tearing out and replacing concrete.

Where Polyurethane Concrete Raising Works Best

This method is commonly used for:

  • Driveways

  • Sidewalks

  • Patios

  • Steps

  • Pool decks

  • Garage aprons

If your concrete is sunken but not cracked beyond repair, polyurethane concrete raising is often the best solution.

Why This Method Is So Popular with Homeowners

Homeowners choose polyurethane concrete raising because it solves the problem without the stress:

  • No loud demolition

  • No long downtime

  • No surprise costs

  • No unnecessary replacement

It’s fast, clean, and gets your concrete back to being safe and level — often in a single visit.

Call to Action

If you’re dealing with uneven concrete and wondering whether it can be lifted instead of replaced, start by learning your options.

Have a question?
Want to understand if your concrete qualifies for raising?
Curious how much you could save versus replacement?

Reach out for an evaluation or explore more educational guides to make the smartest decision for your home.

Next
Next

Is Your Concrete Unsafe, or Just Settled?