Published by All Systems Pros · Updated October 12, 2026
The signs worth taking seriously
Any one of these deserves attention; two or more deserve a call:
- A water bill that jumps with no change in habits
- The sound of running water when every fixture is off
- A new unexplained warm floor spot (a possible hot-water line leak)
- Musty odors, or paint/flooring that's discoloring or lifting
- A water meter that spins with everything shut off
- Low or fluctuating water pressure
The ten-minute meter test
When all known water use has stopped, compare meter readings without using water in between. Account for irrigation, ice makers, and other automatic equipment. A change may indicate a leak; ten minutes without change does not rule out a small or intermittent leak. Use only safely accessible customer equipment and ask the utility about meter-access rules.
How detection works without demolition
Acoustic tools, isolation tests, and other suitable methods can narrow a suspected leak location and reduce unnecessary opening of walls or floors. Results depend on the pipe and site, and some access may still be needed. Repair or repiping should follow the diagnosed cause and condition of the remaining supply lines.
Why speed matters
An active leak can damage flooring, walls, and belongings, so arrange prompt assessment. Stay away from water near energized equipment. All Systems Pros offers 24/7 plumbing service across its service area; confirm availability and any diagnostic charges when booking. A customer's past no-charge visit is not a general pricing policy.
Sources and further reading
About All Systems Pros
All Systems Pros is a plumbing service company based in Monrovia, CA. The company lists Rheem ProPartner, A. O. Smith Certified Contractor, and Raypak credentials. These general guides help explain plumbing topics; equipment instructions and project requirements must be checked for the specific property.
