Underground Drain Line Repair in San Antonio, TX - Tunnel Access, Broken Offset & Wye Repair When a home's drain system starts showing signs of trouble the problem isn't always visible from inside the house. Sometimes the damage is buried beneath the foundation itself, and getting to it requires precision diagnostics. That's exactly what this San Antonio job called for, and here's how we handled it from start to finish. Step One: Pinpoint Leak Detection Before any digging, an