Basement Floor Repair - Sealing Leaks and Leveling Slabs

Does leaking or sunken concrete plague your basement floor? These issues can be more than just a nuisance; they can lead to serious structural problems if left untreated. In this article, we'll explore two effective methods for basement floor repair: curtain grouting for leaks and slab lifting for sunken concrete. With an understanding of these techniques, you'll be equipped to find the right repair professionals to restore a safe, dry, and level basement floor.

Sealing Slab Leaks with Curtain Grouting

As a homeowner, discovering a leak in your basement's concrete slab can be stressful and frustrating. However, contractors trained in curtain grouting offer a highly effective solution. This process involves injecting a water-reactive polyurethane foam underneath the concrete slab in a grid pattern. The material reacts with water, forming a solid seal that prevents further water infiltration.

The curtain grouting process begins by drilling small holes through the concrete slab in a diamond grid pattern. Next, technicians inject the polyurethane through each hole, with new injections overlapping the previous ones, a technique called stage grouting. As the foam reacts with the water from the leak, it expands and forms a watertight seal.

Benefits of curtain grouting with polyurethane:

• It addresses multiple leaks simultaneously, providing a comprehensive repair.
• The water-reactive resin forms a durable, flexible seal that lasts.
• It is minimally invasive, requiring less equipment and causing minimal disruption.
• The products used are NSF-certified for contact with drinking water, ensuring a safe and eco-friendly solution.

Leveling Uneven Basement Floors with Slab Lifting

In addition to sealing leaks, basement floor repair often involves leveling uneven or sunken concrete slabs. Uneven floors can be a tripping hazard and may indicate underlying structural issues. To level a basement floor, professionals commonly use a process called slab lifting.

Slab lifting involves pumping a polyurethane foam beneath the sunken portion of the slab. The foam expands, filling the void and lifting the slab back to its original position. This process is relatively quick and cost-effective compared to replacing the entire slab.

The polyurethane slab lifting process typically includes the following steps:

1. Technicians drill small holes through the concrete slab to access the void beneath.
2. They pump the polyurethane foam through the holes, filling the void and lifting the slab.
3. They patch the holes and smooth the surface, restoring the basement floor to a level and even condition.

Benefits of slab lifting with polyurethane:

• It is lightweight, reducing the risk of further soil compression.
• The foam expands quickly, allowing for fast lifting and leveling of the slab.
• Polyurethane foam is water-resistant, helping to prevent future moisture-related issues.
• The process is less invasive and more cost-effective than replacing the entire slab.

When to Contact a Professional for Basement Floor Repair

If you notice leaking or uneven concrete floors in your basement, address these issues promptly to prevent further damage and ensure your home's structural integrity. Qualified professionals can restore your basement floor to a safe, stable, and dry condition, protecting your home for years to come.

Fill out this form or call 404-618-0438 for a contractor referral today!

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