
Water Line Leak Detection
in Fresno.
If water use continues when fixtures and automatic systems are off, the private supply line may need attention. Water line leak detection focuses on the pipe delivering water to the property.
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Start with the source.
The main private service line, connections and branches can be checked separately from interior fixtures. Responsibility for a line near the meter depends on its location and utility arrangements; the contractor can help clarify the next point of contact.
What an assessment may involve
Testing may compare meter activity, isolate the building supply, check pressure and trace the private line. These steps help distinguish a supply-line leak from a running fixture or an automatic irrigation or pool-fill system.
Before you arrange a visit
Before calling, note whether the problem affects every tap or only one. Mention recent meter readings if you have them. Do not operate utility-owned equipment or force a stuck valve.
Detection, access and repair
Detection identifies the likely line and location. Pipe replacement, spot repair, trenching and surface restoration should be quoted and authorized separately. Ask who will handle each part.
Questions about water line leak detection
Is a water main leak always my responsibility?
No. Public mains and private service lines have different responsibilities. The location and local utility arrangements matter.
Does low pressure prove a leak?
No. A valve, regulator, fixture restriction or supply issue can also reduce pressure. Testing helps narrow the cause.
How is this different from underground leak detection?
This page focuses on the property’s water supply line. Underground detection also covers other buried branches and pipe systems.
Ready to investigate the source?
Describe what you’re seeing. Call to discuss the next step for your property.

