How can you tell if a hidden leak is still running?
Turn off every tap and appliance, then read the household water meter. If the reading changes over a period when nothing is in use, water is still passing through a line somewhere in the house. The pattern of wet readings can then point to where.
The meter check is simple, and you can do it yourself: note the reading, wait, and look again without using any water. A reading that has moved is a clear sign of an active leak. A reading that holds steady does not rule out a leak in a line that is closed off from the meter, so it is only one part of the test.
Tell the crew what you found. The readings and the notes help narrow the search, and they stop the crew opening walls where the water is not.
Does a hidden leak need to be found before the drying starts?
Yes, as far as possible. Drying a wet area while water is still entering it keeps the readings rising and the materials wet. The source is controlled first, then the drying plan is set.
Crews can set up drying on the surfaces they can reach while the search continues, but the plan depends on the source being stopped. A line that keeps leaking inside a wall can undo the drying work, so the crew says when it is waiting on a repair.
Once the source is controlled, the drying and the readings continue as they would for any other water job. The crew records the source, the repair and the time it was made, so the history is clear.
Why is the wall opened in one place and not another?
The opening is placed where the readings are highest and where the pipe or fitting is most likely to be, based on the pattern of wetness and the layout of the plumbing. Opening walls at random wastes time and leaves more work for you.
The crew looks at the layout of the room and the pipes that feed the fixtures. Supply lines and drains usually run in predictable directions, and a wet stain above a fixture is often close to the path of a line.
The opening is kept small and placed so it can be patched neatly. The crew does not cut more than it needs, and it shows you where the opening will be before the work begins.
When do I need a plumber, and when is it the crew's job?
The crew finds the leak and carries out the water damage work. Repairing or replacing a pipe, valve or fitting is plumbing work and is done by a licensed plumber, who should be asked to show the work and its warranty in writing.
Some leaks are a simple fitting that can be repaired quickly, and others involve a section of line that has to be cut out and replaced. Either way, the repair is outside the drying work, and the crew will tell you when it needs to happen.
Ask any plumber you hire to confirm the license it holds and to explain the repair in writing. The crew does not do the plumbing repair itself, so it cannot vouch for a line it has not fixed.
What affects the cost of finding a hidden leak?
How much of the wall or floor must be opened, how many fixtures sit near the leak, whether the source is in a slab or a buried line, and how many visits the search takes. You approve the price on site, after it has been explained, before work starts.
A leak that can be reached through one small opening is a quick find. A leak spread across several walls, or one that has moved over time, takes longer and adds visits. The crew tells you if the search is taking longer than expected, and why.
The cost of the repair to the pipe or fixture is separate from the water damage work, and it is quoted by the plumber who does it. This site does not publish any figures for either.