Water Leak at Home? What to Do Before the Plumber Arrives

A spreading puddle or water coming through a ceiling needs prompt attention. Your priorities are keeping people safe, limiting the flow if you can do so safely, and getting the right help. Do not take risks to reach a valve or rescue belongings.

Make the area safe first

Keep children and pets away. If water is near sockets, appliances, wiring or the fusebox, do not touch wet electrical equipment or walk through water to reach controls. Electrical Safety First advises switching off electricity only when it is safe, and having affected electrics checked by a registered electrician before use. Call 999 if there is immediate danger to life.

Move dry belongings only where access is safe. Keep clear of a bulging ceiling and the area beneath it; do not try to release trapped water yourself.

Stop incoming water if you can

If you know where your internal stop tap is and can reach it safely, close it gently. Do not force a stiff valve. A stop tap is often beneath the kitchen sink, although its position varies between properties.

WaterSafe’s leak guidance recommends opening cold taps after isolation to help drain the system. Leave hot taps alone. Switch off the heating and any immersion heater using normal controls only if they are safely accessible; ask the plumber for advice if you are unsure. Do not open boiler covers.

Give the plumber a clear description

When requesting help, explain:

• Where the water first appeared and whether it is still spreading.
• Whether you have isolated the water successfully.
• Whether electrics, ceilings or neighbouring flats are affected.
• Any access restrictions and where the stop tap is located.

Take photographs from a safe position and note when the leak began. Ask about the attendance charge, what the first visit covers and any out-of-hours rate before agreeing to a call-out.

If you rent, notify your landlord or managing agent promptly. For a suspected leak outside on the supply pipe, contact your water supplier for guidance. You can find local plumbing businesses or browse the leaks and repairs listings. Confirm availability directly.