Meter and pressure tests
A plumber can isolate the house from its fixtures and watch whether the water meter still moves, which separates a leak in the lines from ordinary use. A pressure test narrows down which run.
Water that goes missing shows up as a bigger bill, a damp patch on a wall or a floor that feels warm. Let us know which of those signs you are seeing and where, then get your free estimate.
This page walks through how a leak gets traced, then turns to DeSoto’s permit and inspection rules for repairs that open a wall or slab.

A plumber can isolate the house from its fixtures and watch whether the water meter still moves, which separates a leak in the lines from ordinary use. A pressure test narrows down which run.
Running water heard in a wall, soft drywall or a stain on a ceiling suggests a leak, and the plumber uses moisture readings to find the pipe before cutting anything.
Under the slab, a leaking line can warm one patch of floor, dampen the flooring or keep the meter turning. Once it is traced, the repair is made through the slab above the spot or by running the line a different way.
A line that runs to the house can break underground. Wet lawn that does not dry, a sunken patch of ground or lower pressure at the taps are the signs, and the plumber traces the line to the break.
In DeSoto, plumbing work must be inspected before it is concealed, and altering, repairing or replacing a plumbing system takes a permit. That matters when a leak repair means opening a wall or a slab.
If tracing shows a line failing in more than one place, patching section by section can give way to rerouting the run or repiping. The repiping page covers that, and the plumber explains which way the evidence points.
It depends on the fix. DeSoto exempts repair work such as exchanging washers and faucets, while replacing or altering the plumbing system takes a permit.
When tracing finds worn-out lines, repiping is the follow-up, a sudden break belongs on the emergency page, and the homepage lists the rest.
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