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Prepare for a Household Water Leak: Find Your Shutoff Before an Emergency

Find accessible fixture and unit shutoff valves, watch for leaks, and know when to call building management or a plumber.

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Even small leaks can waste water or damage a home. The EPA describes monitoring bills and meters for hidden leaks; the Red Cross recommends shutting off water at the main valve for damaged pipes and contacting a plumber. Apartment residents must not operate shared building valves without authorization.

Your try-it-at-home checklist

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1. Locate accessible shutoff valves at your sink, basin and toilet, if present; record their positions with notes or photos.
2. Ask the owner or building manager where your own unit's main shutoff is. Do not operate communal meters or whole-building valves without authorization.
3. Look for wet marks, unexpectedly high bills or meter movement when no household water is being used; these can suggest a leak.
4. If water is escaping, stop using the affected fixture and, only if it is clearly identified and safe, turn the authorized shutoff gently. Do not force a stuck or damaged valve.
5. If water is near outlets, electrical equipment or breaker panels, stay out of standing water and do not touch electrical devices. Ask qualified professionals or emergency responders for help.
6. Inform the building manager or landlord promptly and call a plumber for suspected pipe damage. Document the location and time if safe.
7. After repair, confirm the area dries and share valve locations and contact information with household members. Ask for reassessment if moisture returns or spreads.

Your try-it-at-home checklist

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