Tunnel Now is a trusted excavating contractor that San Antonio residents trust. They do precise tunneling, slab leak repair, and underground plumbing work without damaging your floors. We are the local crew that does everything from the first dig to the last backfill, no matter where you are in Bexar County, whether it’s Alamo Heights, Helotes, New Braunfels, or anywhere else.
When your slab shifts in the middle of the night or a sewer line backs up at your Stone Oak restaurant on a Saturday, you need a team that’s already familiar with the terrain. San Antonio’s expansive clay soils, limestone bedrock transitions, and aging pipe infrastructure create underground problems that only get worse without proper attention.
Tunnel Now is a San Antonio-based excavation and tunneling crew working daily across residential neighborhoods and commercial properties — from Castle Hills and Leon Valley to Schertz, Boerne, and the I-35 corridor through New Braunfels and Selma. We understand Bexar County’s soil movement patterns, and we know the difference between a straightforward trench job and a full-scale utility emergency.
Expert hand-digging beneath your foundation to access and repair broken lines without causing damage to your tile, hardwood, or concrete floors.
Precision pressure testing to pinpoint hidden leaks and confirm the integrity of your underground plumbing across Bexar County and beyond.
Rapid response for collapsed mains, slab leaks, and parking lot sinkholes from Stone Oak and Helotes to New Braunfels and Schertz.
Our Services
Under-Slab Tunneling & Slab Leak Repair Homes built on concrete slabs are common throughout San Antonio and its suburbs, as are the sewer and water lines that run beneath them. When shifting soils crack or crush those lines, the last thing you want is a jackhammer tearing through your tile. We hand-dig and machine-excavate tunnels beneath residential and commercial slabs with precision — controlled digging, proper shoring, and a clean site when we’re done. If you’ve failed a hydrostatic test or suspect soil erosion under your foundation in Alamo Ranch, Terrell Hills, or Universal City, tunneling is almost always faster, cleaner, and less destructive than open-cut methods through your floors.
Under-Slab Sewer Repair Broken cast iron, collapsed Orangeburg, bellied PVC — underground sewer problems in San Antonio’s older neighborhoods don’t fix themselves. Many homes in Converse, Kirby, and Castle Hills are still running on original drain systems from the 1950s–1980s. We tunnel beneath your slab, remove the failed section, and install code-compliant PVC without disturbing a single floor tile.
Hydrostatic Testing Precision pressure testing to locate hidden leaks and confirm the integrity of your underground plumbing system is a required first step before beginning any major repair.
Underground Plumbing Repair: From failed water lines beneath your slab to corroded drain pipes deep in the ground, we handle underground plumbing repair for homeowners and businesses throughout San Antonio, first diagnosing the problem and then implementing the appropriate solution without causing unnecessary damage to your property.
Foundation Access & Sub-Slab Excavation: San Antonio’s clay-heavy soils expand and contract with every rain cycle and dry spell. When that movement damages foundation piers or creates voids beneath your slab, repair crews need precise access points dug before work can begin. We provide foundation access excavation that protects the structure from above, with no guesswork on depth or angle.
Residential Sewer Repiping If you’re snaking your drains every few months across a home in Shavano Park, Live Oak, or Alamo Heights, the pipe itself is the problem. We carefully open the ground around and beneath your slab for complete sewer line repair, removing the failed pipe and preparing for full PVC repiping — working alongside your licensed plumber or coordinating one as needed.
Commercial & Municipal Excavation Along the I-10 and I-35 corridors, restaurants, shopping centers, multi-unit properties, and industrial sites have more traffic and fail more quickly. We provide rapid sewer excavation and commercial digging for broken sewer mains, grease trap access, storm drain failures, and utility repairs under pavement. We also take care of full municipal sewer connections, new tie-ins, failed lateral replacements, and city main work in coordination with the City of San Antonio, Bexar County, and the MUD districts in Boerne, New Braunfels, Hondo, and LaCoste. Pulled permits. Passed the inspections. Work done well.
Specialized Plumber Support Need a tunnel dug so you can get to the hydrostatic test? A trench was dug to fix the sub-slab? We work with licensed plumbers all over San Antonio to do the digging so they can focus on the plumbing.
