Uneven or sunken concrete surfaces can create safety hazards and diminish the aesthetics of your property. At Cornerstone Structural Repair & Waterproofing, we specialize in polyurethane foam injection as a durable and efficient solution for lifting and leveling concrete. Serving St. Louis and the surrounding areas, we provide expert concrete repair services backed by our Life of Structure Warranty to ensure long-lasting results.
To learn more about our concrete repair and concrete leveling services or request a quote for your project, contact us online or by phone today.
What is Polyurethane Foam Injection?
Polyurethane foam injection is a modern concrete leveling technique that involves injecting an expanding polyurethane foam beneath sunken concrete slabs. The foam expands, filling voids and gently lifting the concrete back to its original position. This method is often preferred over traditional mudjacking due to its precision, lightweight properties, and longevity.
Benefits of Polyurethane Foam Injection
- Quick and Efficient – The process is completed in a few hours, with minimal downtime.
- Lightweight and Strong – Polyurethane foam does not add excessive weight to the soil, reducing the risk of future settling.
- Water-Resistant – The closed-cell foam prevents water infiltration, helping to prevent soil erosion under the slab.
- Eco-Friendly – Less invasive than other methods and uses minimal materials.
- Cost-Effective – More affordable than full concrete replacement.
Common Applications for Polyurethane Foam Injection
Polyurethane foam injection is highly versatile and can be used for various concrete leveling projects, including:
Sidewalks and Walkways
Uneven sidewalks can pose tripping hazards. Our polyurethane foam injection service ensures safe, even sidewalk repair with minimal disruption.
Driveways
Over time, driveways may sink due to soil erosion or settlement. Foam injection restores their smooth, level condition without the need for costly driveway repair or replacement.
Garage Floors
Settling garage floors can lead to structural issues and difficulty opening or closing doors. Our garage floor repair and leveling solutions restores balance and stability.
Patios and Pool Decks
Sunken patios and pool decks can create trip hazards and water drainage problems. Our process lifts and secures these surfaces efficiently.
Commercial and Industrial Flooring
For warehouses, factories, and retail spaces, an uneven concrete floor can disrupt operations. Our foam injection services provide a smooth, stable surface for high-traffic areas in commercial and industrial applications.
How Polyurethane Foam Injection Works
Step 1: Assessment and Preparation
Our team evaluates the affected area, identifying the underlying cause of sinking or uneven concrete.
Step 2: Drilling Small Injection Holes
We drill small holes (about the size of a dime) into the sunken concrete to allow for foam injection.
Step 3: Foam Injection and Expansion
The polyurethane foam is injected beneath the slab, expanding to fill voids and lifting the concrete to its original level.
Step 4: Hole Sealing and Cleanup
Once leveling is complete, the small holes are patched, and the area is cleaned, leaving behind a seamless surface.
Why Choose Cornerstone Structural Repair & Waterproofing?
At Cornerstone, we prioritize quality, durability, and customer satisfaction. Here’s why St. Louis homeowners and businesses trust us for their concrete repair needs:
- Expert Technicians – Our team has extensive experience in polyurethane foam injection and concrete leveling.
- Advanced Technology – We use high-quality polyurethane foam for precise and durable results.
- Guaranteed Work – Our Life of Structure Warranty ensures lasting peace of mind.
- Locally Owned and Operated – Serving St. Louis and surrounding areas with dedicated, professional service.
Frequently Asked Questions About Polyurethane Foam Injection
How long does the process take?
Most foam injection projects are completed in just a few hours, and the area is ready for use the same day.
Is polyurethane foam injection better than mudjacking?
Yes. Unlike mudjacking, polyurethane foam is lightweight, waterproof, and lasts longer without adding extra weight to the soil. However, there are some cases when mudjacking may be preferred, depending on the circumstances.
How long does polyurethane foam last?
Polyurethane foam is designed to be a permanent solution. It does not degrade over time and resists moisture, ensuring durability.
Can polyurethane foam injection fix large voids under concrete?
Yes, the expanding properties of polyurethane foam make it ideal for filling voids beneath concrete slabs.
Is it safe for the environment?
Yes, polyurethane foam is environmentally friendly and does not leach harmful chemicals into the soil.
Contact Us for a Free Estimate
If you have sunken or uneven concrete on your property, polyurethane foam injection is the fast, effective, and long-lasting solution you need. Contact Cornerstone Structural Repair & Waterproofing today for a free concrete repair estimate and let us help you restore safety and stability to your concrete surfaces.
Call us now or contact us online to schedule your consultation!
