Effective Concrete Void Filling Services

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Voids under concrete slabs cause surfaces to become uneven and unsafe. Left untreated, these gaps can cause significant structural damage that is costly to repair. Foamjection fills concrete voids using polyurethane foam. This reliable, cost-effective solution lifts the concrete, restoring safety and stability.

What Causes Gaps Under Concrete Slabs?

An empty space under concrete causes slabs to sink, crack and become uneven. Common reasons for these voids include:

Soil erosion: Water infiltrating the soil under concrete can cause particles to shift and erode, leaving empty pockets that merge and grow.
Poor compaction: Without proper compression during construction, soil can settle, creating gaps.
Freeze-thaw effect: Repeated freezing and thawing of water causes the ground to swell, then contract, displacing the soil under the slab.
Underground leaks: Water that escapes plumbing pipes can erode the soil beneath concrete.

Signs of Gaps Under Concrete

If you notice any of these warning signs, contact Foamjection for a professional assessment:

Cracks in concrete slabs
Soil erosion around slabs
Sunken or uneven concrete surfaces
Hollow-sounding concrete
Movement of slabs when walking on them
Water puddles on or around the concrete
Gaps between concrete and walls or floors and baseboards

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How to Fill a Void Under a Concrete Slab the Foamjection Way

Foamjection uses an innovative, eco-friendly polyurethane foam developed by industry leader, HMI. Trained contractors inject the foam into small holes drilled into the concrete. Once it reaches the space under the concrete slab, the foam expands to fill the gap, leveling the surface. The material hardens to form a strong, durable foundation.

Benefits of Our Concrete Void Filling Foam

Foamjection offers many advantages over replacing concrete or older gap-filling methods, like mudjacking:

Cost-effective: Filling gaps with polyurethane foam is more budget-friendly than replacing concrete. It eliminates the need for demolition, disposal or buying new concrete.
Less disruptive: Concrete replacement can take days or even weeks, leading to significant downtime. Our contractors complete most jobs in a few hours. Your surface is ready for use shortly after the foam hardens.
Durable: Polyurethane foam is water-resistant and long-lasting. It creates a stable base that boosts the concrete slab’s longevity. Compared to mudjacking’s five- to 10-year lifespan, foam-injected concrete can last 20 years or more.
Sustainable: Foamjection is the market’s only concrete lifting foam made from renewable materials. Choosing this option over replacement prevents concrete slabs from ending up in landfills.

Why Trust Foamjection for Foundation Void Filling?

Our contractors receive training from HMI, the global leader in concrete lifting solutions. They meet strict quality standards, delivering proven, long-lasting results. Each project begins with a detailed assessment, followed by a free estimate. We tailor your quote to your needs and budget.

Foamjection has a wide range of residential, commercial and municipal applications. From sinking sidewalks to sinkhole prevention, it offers a fast, minimally invasive solution.

Enjoy exceptional service from trusted experts. With Foamjection, you benefit from premium materials, fair pricing and a smooth, safe concrete surface.

Request Your Free Estimate Today

If you suspect gaps under your concrete surfaces, contact your nearest Foamjection location. Our proprietary polyurethane foam technology saves you time and money. Level up the safety of your concrete. Reach out today to get your no-obligation estimate.