Water Line Leak Detection and Repair in Pasadena, CA

Service: Underground Water Line Leak Detection and Repair | Location: Pasadena, CA | Problem: Unexplained high water bill, no visible leak

The Problem

A Pasadena homeowner called 24/7 Rooter Service after receiving two consecutive water bills that were more than double their normal usage — with no apparent explanation. There was no wet spot visible in the yard and no fixture dripping inside the home. The homeowner had already checked all indoor fixtures and confirmed the meter was still moving when everything was shut off, confirming an active leak somewhere in the underground water line between the meter and the house.

What We Found

We performed a pressure test on the main water line from the meter to the house to confirm the leak location and estimate severity. Using electronic ground microphones we walked the water line path and amplified the sound of escaping water to pinpoint the leak location to a specific point approximately 18 feet from the meter in the front yard. The leak was in a copper line at a fitting that had corroded due to soil chemistry — a common failure point in Pasadena homes with copper main lines installed in the 1960s and 1970s.

What We Did

We excavated a small access pit at the pinpointed leak location, exposed the copper line, and confirmed the leak at the corroded fitting. We replaced the failed section of copper pipe and the fitting with new copper, pressure tested the repair, and confirmed zero leak before backfilling. The excavation was approximately 18 inches by 24 inches — minimal disruption to the front yard landscaping. We restored the surface and confirmed the water meter had stopped moving before leaving the property.

Result

The underground leak was located and repaired the same day. The homeowner confirmed their water meter returned to normal movement consistent with household usage. We provided documentation of the repair for the homeowner to submit to Pasadena Water and Power for a potential leak credit on their utility bills — many water utilities offer one-time leak credits when a documented repair has been made.

Need leak detection in Pasadena or nearby? Call (213) 281-4751 or request service online. Available 24/7.

Related: Plumber in Pasadena | Leak Detection | Plumbing Services