Void Filling in Mayville, WI
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Void Filling in Mayville, WI
Voids beneath concrete slabs, foundations, and driveways can cause settlement, cracking, and structural instability over time. These empty spaces form due to soil erosion, improper soil compaction, underground plumbing leaks, or natural sinkholes. Without proper filling, voids can compromise your property’s stability, leading to foundation failure, uneven concrete, and costly repairs.
At Mayville Foundation Repair, we provide expert Void Filling services in Mayville, WI, using advanced polyurethane foam injection and grout filling techniques to stabilize structures, fill voids, and prevent further settlement.
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 Raising / Lifting
- House Leveling
- Retaining Wall Repair
- Polyurethane Foam Injection
- Commercial Foundation Repair
- Void Filling
- Steel Push Pier Installation
- Slab Pier Installation
- Helical Pier Installation
- Helical Deck Pier Installation
- Pre-Construction Pier Installation
- Foundation Wall Repair
- EverBrace™ Wall Restoration System
- CarbonArmor Wall Stabilization
- GeoLock Wall Anchor System
- PowerBrace Foundation Wall Support

How Void Filling Works
Void filling is a preventative and corrective process used to restore the support beneath foundations, slabs, driveways, and patios. Our method involves identifying voids, selecting the appropriate filling material, and injecting it into the empty spaces for long-lasting stabilization.
Inspection and Diagnosis
Our team conducts a thorough assessment to determine:
- Size and depth of voids beneath the foundation or slab.
- The cause of void formation (e.g., soil erosion, poor compaction, underground water leaks).
- Signs of settlement, uneven surfaces, or cracking.
- The best void-filling material for stabilization.

Benefits of Void Filling
1. Prevents Foundation & Concrete Settlement
- Strengthens underlying soil to prevent further movement.
- Restores stability to foundations, driveways, and walkways.
2. Stops Soil Erosion & Washout
- Seals voids caused by water infiltration.
- Prevents future erosion by stabilizing loose soil.
3. Cost-Effective Alternative to Slab Replacement
- Avoids the expense of replacing sunken concrete.
- Repairs voids quickly and efficiently without excavation.
4. Eco-Friendly & Non-Disruptive Process
- Uses environmentally safe materials that don’t degrade over time.
- Minimal impact on landscaping, driveways, or property structures.
5. Improves Structural Integrity
- Supports heavy loads and restores the foundation’s original strength.
- Prevents further cracking, tilting, or shifting of structures.

What to Expect During Void Filling
At Mayville Foundation Repair, we follow a structured process to ensure voids are properly filled, stabilized, and future-proofed against further soil movement.
Step 1: Site Evaluation & Inspection
- Perform ground-penetrating radar scanning to detect void locations.
- Evaluate the cause of void formation and the best repair strategy.
Step 2: Custom Repair Plan
- Select the best void-filling material (polyurethane foam, cement grout, or sand slurry).
- Develop a cost-effective repair plan for lasting stabilization.
Step 3: Injection Process
- Drill small access holes in the affected area.
- Inject polyurethane foam or cement grout to fill the voids.
- Monitor the material’s expansion and settlement.
Step 4: Final Adjustments & Surface Sealing
- Ensure even distribution of the filling material.
- Patch the injection points for a smooth finish.
Step 5: Cleanup & Warranty Information
- Clean up the worksite and inspect results.
- Provide a lifetime transferable warranty on repairs.

Cost of Void Filling in Mayville, WI
The cost of void filling depends on several factors, including:
- Size and depth of the voids – Larger voids require more material and labor.
- Type of filling material used – Polyurethane foam costs more than traditional grout or slurry.
- Extent of soil erosion or water damage – If extensive soil stabilization is needed, costs increase.
- Site accessibility – Areas that are difficult to reach may require additional equipment or labor.
Estimated Costs in Mayville, WI:
- Small void filling (driveways, sidewalks, patios): $500–$2,500.
- Moderate voids under foundations or large slabs: $2,500–$6,500.
- Extensive void filling with soil stabilization: $6,500–$15,000+.
We provide free estimates and offer flexible financing options to fit your budget.
FAQs About Void Filling
1. What causes voids under foundations and concrete slabs?
Voids form due to:
- Soil erosion and washout from poor drainage.
- Expansive soil shrinkage in dry conditions.
- Poor soil compaction during construction.
- Underground water leaks causing soil displacement.
2. How long does void filling take?
- Small voids (sidewalks, patios): 1–2 hours.
- Moderate foundation voids: 1–2 days.
- Extensive void stabilization: 2–5 days.
3. Is polyurethane foam better than traditional grout filling?
Yes! Polyurethane foam is lightweight, waterproof, and long-lasting, while grout filling can be heavier and may settle over time.
4. Will void filling prevent future settlement?
Yes! Our process stabilizes the soil and prevents further erosion, reducing the likelihood of future foundation settling.
Looking for Void Filling Near Me?
If you need Void Filling in Mayville, WI, trust Mayville Foundation Repair to stabilize and restore your property’s foundation.
Call 920-696-8636 today for a free estimate!