Upland Dispatch: 140 N Benson Ave, Upland, CA 91786
Direct Line:(207) 419-2600
A warm spot beneath your floor tile, the faint hissing sound of running water behind a baseboard, or an unexplained spike in your City of Upland water bill points to an under-slab plumbing leak. In Southern California homes built on monolithic concrete slab foundations, pressurized copper water supply lines were embedded directly into sand or soil beneath the slab. Over decades of contact with rocky soil, thermal expansion friction, and aggressive soil chemistry, copper pipes develop pinhole leaks. Left unaddressed, pressurized water erodes supporting soil, cracks concrete foundations, and saturates subflooring. Our technicians locate under-slab leaks with pinpoint acoustic precision and provide non-destructive overhead bypass repiping.
Because slab leaks occur beneath four to six inches of reinforced concrete and flooring, they rarely present as visible standing water at first. Homeowners should stay alert for the subtle thermal and acoustic warning signs of an active pressurized under-slab failure.
Breaking through expensive tile or hardwood flooring based on a guess is unacceptable. Our technicians utilize precision electronic acoustic listening equipment, ground microphones, and thermal imaging cameras to pinpoint the leak coordinate to within a two-foot radius. We isolate hot and cold water manifolds, charge the lines with compressed nitrogen or air, and detect the acoustic signature of escaping gas.
Homeowners typically have two repair avenues. Direct repair involves jackhammering through the finished floor and concrete slab to excavate the leaking pipe and braze a new copper section. However, jackhammering is noisy, dusty, compromises the structural slab vapor barrier, and does not prevent future pinholes on adjacent aging pipes. The preferred modern solution is an overhead attic bypass: abandoning the leaking under-slab line and routing a new, flexible Uponor PEX-a line overhead through the attic or ceiling, leaving your floors completely untouched.
Unaddressed plumbing wear damages building materials, increases water waste, and risks sudden structural failures.
We install durable, commercial-grade materials designed for long-term reliability in the Cucamonga Valley.
In almost all cases, an overhead bypass using Uponor PEX-a tubing routed through the attic or ceiling is superior to jackhammering your slab. An overhead bypass preserves your flooring, eliminates the mess of concrete demolition, preserves the foundation's moisture barrier, and costs less than floor restoration.
Call our Upland team to schedule diagnostic scoping, receive a clear written repair estimate, or dispatch a technician.
