Understanding Tunneling
Commercial buildings often face complex structural demands due to their larger size, heavier loads, and extensive under-slab plumbing systems. When plumbing leaks or structural failures occur beneath a slab foundation, Tunneling provides a non-invasive solution by excavating directly beneath the building. This process allows technicians and plumbers to repair foundation issues, replace leaking pipes, or install piering systems without breaking through interior concrete floors or disturbing ongoing business operations. Common triggers for tunneling in Liberty Hill include underslab plumbing leaks, severe soil washouts, expansive clay shifting, and slab settlement.
Common Signs Your Commercial Property Needs Tunneling:
Unexplained Water Bill Spikes or Moisture Under Flooring: Plumbing leaks under the foundation can saturate soil, causing slab settlement or floor surface damage.
Slab Heaving or Cracking Above Utility Lines: Soil movement triggered by hidden leaks pushes up against concrete slabs, leading to cracks across interior floors.
Low Water Pressure or Odors Near Slab Level: Damaged drain or supply lines under the concrete require underground access for immediate repair.
Gaps Between Floor and Walls After Plumbing Repairs: Structural shifts occurring after under-slab plumbing leaks often demand subterranean stabilization.
Contact Us
How Tunneling Works
At Liberty Hill Foundation Repair, we follow a detailed, engineered process to ensure every Tunneling project is executed safely and efficiently. We prioritize keeping your interior space fully operational, using precise excavation methods to access critical areas underneath your building without disrupting your tenants, staff, or customers.
Here’s how our Tunneling process works:
Comprehensive Site Assessment & Structural Inspection: We evaluate your property using advanced imaging and plumbing diagnostic tools to determine the precise depth, length, and entry location required for the subterranean tunnel.
Soil & Load Evaluation: Because Liberty Hill’s soil consists heavily of expansive clays, we evaluate ground stability surrounding the planned access points to design secure shoring and excavation pathways.
Custom Engineering & Access Plan: We develop a targeted excavation strategy specifying tunnel dimensions (typically 3×3 feet), structural support beam locations, and access points away from main customer entrances.
Execution of Excavation & Repairs: Our specialized crew hand-excavates the tunnel beneath the slab, installing temporary steel or timber shoring to ensure structural safety. Plumbers or foundation specialists then perform necessary pipe replacements, pier installations, or mudjacking directly underneath the building.
Backfilling & Soil Compaction: Once repairs are verified, we backfill the tunnel using high-density soils or flowable fill, compacting the material in stages to restore natural ground support under the foundation.
Final Inspection & Quality Assurance: We conduct a final structural review and load verification to ensure your foundation is fully supported and all work meets local building standards.
Services We Offer
- Commercial Foundation Repair
- Concrete Slab Foundation Repair
- Elevated Pilings or Stilts Foundation Repair
- House Raising / Lifting
- House Leveling
- Pier and Beam or Block and Base Foundation Repair
- Polyurethane Foam Injection
- Pressed Concrete Pilings
- Pressed Steel Pilings
- Slab Pier Installation
- Steel Push Pier Installation
- Tunneling
Benefits of Tunneling
Choosing subterranean Tunneling for commercial properties in Liberty Hill, TX offers key operational advantages:
Protects Interior Flooring & Renovation Investments: Eliminates the need to jackhammer through interior tile, carpet, hardwood, or polished concrete inside your commercial building.
Ensures Business Continuity: Allows your business to remain open and fully functional throughout the entire repair process, avoiding costly downtime or temporary relocations.
Prevents Secondary Dust and Noise Contamination: Keeps heavy debris, dirt, and loud demolition work entirely outdoors and underneath the foundation.
Provides Direct Access for Complex Repairs: Creates a safe, accessible workspace for technicians to handle extensive plumbing overhauls or deep foundation piering.
What to Expect During Tunneling
When you choose Liberty Hill Foundation Repair for your commercial tunneling project, you can expect a seamless, professional experience from start to finish:
Detailed Site Assessment: Our engineers mark utility lines, define precise tunnel trajectories, and secure all necessary permits prior to digging.
Clear Communication: We maintain transparent scheduling, keeping property managers informed on excavation milestones, plumbing repair progress, and backfilling timelines.
Minimal Business Disruption: Exterior excavation pits are placed strategically around the perimeter or staging areas to keep vehicle parking and customer entryways clear.
Ongoing Support: Following completion, we provide soil monitoring guidelines and foundation maintenance recommendations to protect your property long-term.
Cost of Tunneling
The cost of commercial Tunneling varies depending on several key project factors:
Length and Depth of the Tunnel: Total linear footage required to reach the target repair zone directly impacts labor time and equipment needs.
Soil Conditions & Hardness: Denser soils or rocky clay conditions beneath Liberty Hill properties may require specialized excavation equipment.
Underground Structural Requirements: Deep tunnels or poor soil conditions may necessitate extensive steel shoring or temporary concrete support beams.
Scope of Underlying Repairs: The total investment will reflect whether tunneling is paired with plumbing line replacements, steel pier installations, or soil stabilization.
At Liberty Hill Foundation Repair, we provide clear, upfront estimates for all commercial tunneling and sub-slab restoration projects. Call us today at 512-855-2830 for a detailed quote tailored to your property.
Looking for Tunneling Near Me?
If you need commercial Tunneling services near you, rely on Liberty Hill Foundation Repair. Our team provides safe, reliable subterranean excavation and foundation support across Liberty Hill, TX. Call 512-855-2830 today for your free estimate and expert consultation.
FAQs About Tunneling
How long does commercial Tunneling take?
Most commercial tunneling projects take between 1 to 2 weeks to excavate, complete sub-slab repairs, and backfill, depending on tunnel length and soil conditions.
Can foundation or plumbing repairs be completed inside the tunnel?
Yes, technicians can install steel piers, replace main sewer or supply lines, and apply void fillers directly within the excavated space.
Does tunneling weaken the support under the building?
No, proper tunneling uses temporary structural shoring during work and certified backfilling techniques upon completion to maintain complete slab support.
How much does Tunneling cost?
Cost depends on linear footage, soil density, and accessibility. We provide free on-site inspections to determine exact project requirements.
Can I continue business operations during tunneling?
Yes, because all digging and repair work happens entirely beneath the foundation from exterior access points, normal business activities can continue uninterrupted.