What to tell a plumber about a leak

By Jamen’s Plumbing · October 7, 2026

1. Identify the visible location

Describe where the water appears: inside a cabinet, near a fixture, around a connection, or on a wall or floor. The place where water becomes visible may be different from the source. Avoid opening walls or taking fixtures apart just to investigate.

2. Explain when it happens

Does it appear only when one fixture runs, continue when the fixture is off, or come and go? Note when you first noticed it and whether it has changed. These observations help frame the conversation without assuming a cause.

3. Mention related changes

Tell the plumber about changes in pressure, unexpected water use, a recent fixture installation, or previous work in the same area. Keep any earlier repair records available. A photograph can show the visible condition, but it cannot confirm a hidden cause.

4. Describe access

Is the plumbing under a sink, behind an appliance, in a crawlspace, or in a business utility room? Explain any locked areas or tenant arrangements. Clear a safe route if you can, but do not move heavy appliances or enter an unsafe space.

5. Reduce further use while arranging help

Stop using the affected fixture where practical. If you know the correct shutoff valve and can reach it safely, turn off the supply to an active leak. Stay away from water near electrical equipment. Contact a plumber to discuss the next step.