Pinhole Leak Repair in Norwalk & La Mirada
Pinhole leaks are tiny perforations in copper water lines caused by internal corrosion. They start small — often just a pinprick — but they never stop on their own. Over time, a single pinhole leak can cause significant water damage to drywall, insulation, flooring, and framing. And if one section of pipe has developed a pinhole leak, other sections of the same pipe are usually not far behind.
Norwalk and La Mirada homes built in the 1950s through 1980s are especially susceptible because many were plumbed with Type M copper, the thinnest wall copper pipe available. Our team has repaired pinhole leaks in hundreds of homes throughout the area and can help you decide whether a spot repair or full repipe is the right move.
Our Pinhole Leak Repair Process
Locate the Leak
Using electronic leak detection or visual inspection (green patina staining is a telltale sign), we find all active pinhole leaks in the system. We check exposed pipes in accessible areas for signs of corrosion that could indicate future problems.
Assess Pipe Condition
A single pinhole leak may be worth spot-repairing. Multiple leaks or widespread corrosion suggest the entire system is reaching end of life. We give you an honest assessment so you can make an informed decision.
Repair or Replace
For spot repairs, we cut out the corroded section and splice in new copper or transition to PEX. For widespread corrosion, we recommend a full or partial repipe to eliminate the problem system-wide.
System Test
After the repair, we pressure test the affected lines and run all fixtures to verify everything is sealed and flowing correctly. We also check water pressure to ensure it is within safe range, since high pressure accelerates pipe corrosion.
We serve Norwalk, La Mirada, and 20 surrounding Southern California cities. Learn more about all our plumbing services or call 562-219-4085 for same-day service.