Void Filling in Wake Forest, NC
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How Void Filling Works
Void filling involves injecting or placing material into underground gaps to reinforce the stability of surrounding soil and structures. Our process includes:
Inspection and Void Detection
- Conducting ground-penetrating radar (GPR) scans and soil testing to locate voids.
- Assessing foundation cracks, sinking concrete, and unstable ground conditions.
- Identifying the best void-filling method based on soil type and structure size.
Void Filling Techniques
We use multiple void-filling methods depending on the size, depth, and location of the voids:
1. Polyurethane Foam Injection
- High-density polyurethane foam is injected into underground voids.
- The foam expands, filling gaps, stabilizing the soil, and supporting nearby structures.
- Ideal for smaller voids under driveways, sidewalks, foundations, and patios.
2. Compaction Grouting
- A cement-based grout mixture is injected under high pressure into loose soil.
- The grout densifies surrounding soil and reinforces ground strength.
- Used for large voids, deep soil stabilization, and sinkhole prevention.
3. Flowable Fill (Cementitious Void Filling)
- A low-strength, self-leveling concrete slurry is poured into voids.
- Provides long-term support for abandoned utility lines, sinkholes, and deep underground gaps.
- Best for filling large underground spaces in commercial and industrial settings.
4. Soil Injection and Stabilization
- Expansive or loose soil is treated with chemical binders to improve load-bearing capacity.
- Strengthens the ground and prevents future void formation.
Final Testing and Stability Verification
- Ensuring voids are properly filled and reinforced.
- Conducting post-injection soil testing to verify ground stability.
Our Services
- Concrete Slab Foundation Repair
- Pier and Beam or Block and Base Foundation Repair
- Basement Wall Repair
- Basement Waterproofing
- Cracked Wall / Structural Repair
- Drainage Services and Repair
- House Leveling
- Mudjacking / Slabjacking
- Retaining Wall Repair
- Sinkhole Remediation
- Polyurethane Foam Injection
- Commercial Foundation Repair
- Mobile Homes
- Soil Stabilization
- Compaction Grouting
- Pool Stabilization
- Void Filling
- Pressed Steel Pilings
- Steel Push Pier Installation
- Slab Pier Installation
- Helical Pier Installation
- Pre-Construction Pier Installation

Benefits of Void Filling
Void filling provides long-lasting ground support and prevents future structural damage. Key benefits include:
✓ Prevents Foundation Settlement – Reinforces weak ground conditions beneath structures.
✓ Eliminates Air Pockets & Sinkhole Risks – Fills underground gaps caused by erosion or poor compaction.
✓ Supports Heavy Loads – Improves soil stability for buildings, roadways, and parking lots.
✓ Reduces Cracking & Structural Damage – Prevents stress on foundations and concrete surfaces.
✓ Eco-Friendly & Cost-Effective – Uses durable, sustainable materials to stabilize soil at a lower cost than excavation.

What to Expect During Void Filling
At Wake Forest Foundation Repair, we follow a structured void-filling process to ensure effective ground reinforcement:
- Site Inspection & Void Assessment
- Identifying void locations and assessing ground stability.
- Discussing the best void-filling solution based on property needs.
- Selection of Void Filling Method
- Choosing polyurethane foam, compaction grouting, or cement-based fill.
- Preparing a customized repair plan with a timeline and cost estimate.
- Void Injection & Soil Stabilization
- Injecting the selected material into underground voids.
- Monitoring settling, expansion, and reinforcement levels.
- Final Inspection & Load Testing
- Verifying stabilization success through soil testing and surface checks.
- Providing maintenance recommendations to prevent future voids.

Cost of Void Filling in Wake Forest, NC
The cost of void filling depends on several key factors, including:
* Size & Depth of Voids – Larger and deeper voids require more material and labor.
* Void-Filling Method Used – Polyurethane foam, compaction grouting, and cementitious fill have different pricing.
* Structural Impact & Access – If the void is under a foundation or heavy structure, specialized equipment may be needed.
* Soil & Drainage Conditions – Additional drainage corrections or erosion control may increase costs.
At Wake Forest Foundation Repair, we provide affordable pricing and financing options to fit your budget.

Why Choose Us for Void Filling?
Wake Forest Foundation Repair is a trusted expert in void filling and soil stabilization in Wake Forest, NC. Here’s why property owners rely on us:
* Experienced Geotechnical Specialists – Skilled in void detection and soil stabilization techniques.
* Advanced Filling Methods – Offering foam injection, grouting, and cementitious stabilization.
* Affordable & Cost-Effective – Cost-effective solutions to prevent expensive foundation repairs.
*Guaranteed Results – Backed by a long-term stability warranty.
* Local Wake Forest Experts – Familiar with regional soil conditions and void formation risks.
FAQs About Void Filling
How long does void filling take?
Most void-filling projects take one to two days, depending on void size and soil conditions.
Can void filling prevent foundation damage?
Yes. Filling voids strengthens the soil and prevents foundation settlement or collapse.
Is polyurethane foam injection better than traditional grout filling?
Polyurethane foam is lighter, expands quickly, and cures fast, while grout is more durable for deep voids.
Will void filling fix cracks in my driveway or patio?
Yes. Filling the voids prevents further settlement, but surface cracks may require separate repair.
Looking for Void Filling Near Me?
If you need void filling in Wake Forest, NC, trust Wake Forest Foundation Repair for expert ground stabilization solutions.
Unfilled voids can cause serious foundation damage and safety hazards. Contact us today for a free inspection and professional void-filling services.