Case Study 1: A $286 Higher Water Bill Revealed a Hidden Slab Leak
A homeowner noticed their latest water bill was about $286 higher than usual. Nothing inside the house looked like it was leaking — no running toilets, no dripping faucets, no wet spots on the floor. At first, they suspected the sprinklers or a faulty water meter.
A water-use check showed water was still moving through the system with every fixture off. Since there was no leak inside the house, we checked the pressurized lines next, and the inspection pointed to a hidden leak under the slab. Further testing narrowed it down to the hot water line running to the bathroom. The leak was small enough that it hadn't created a visible puddle yet, but it was wasting water around the clock. This is the kind of hidden slab leak we see often in older Southern California homes with aging copper pipe.
Rather than breaking into the finished floor right away, we walked the homeowner through the options. A spot repair was possible, but it meant opening the slab. A reroute meant taking that section of pipe out of service entirely and running a new line through an accessible part of the house instead. The homeowner went with the reroute. We installed the new line, then tested the whole system for leaks and proper flow.
The water loss stopped, and usage went back to normal. The homeowner avoided tearing up a section of finished flooring, and now had a clear answer for what had been driving up the bill.