How do I isolate a leaking tap or appliance?

If you notice a small leak from a tap, toilet, or appliance, you can often stop the water while you wait for repairs by isolating the supply. Here’s how to do it safely:

1. Locate the isolation valve
Most taps, toilets, and appliances have a small valve on the pipe feeding them. It’s usually under the sink, behind the toilet, or near the appliance.

2. Turn the valve off

  • Most isolation valves can be operated with a flat‑head screwdriver.

  • Turn the valve a quarter turn (90°) — this usually stops the water.

  • The valve is off when it is perpendicular to the pipe and on when it is parallel.

3. Check the water has stopped
Turn the tap or appliance on briefly to make sure the leak has stopped. If water is still running, do not force the valve.

4. Contact GCH Repairs
Even if the leak stops, it’s important to report the repair so it can be fixed properly.

⚠️ Safety tips

  • Only attempt this if you feel confident.

  • If the leak is severe, flooding, or you’re unsure, call us immediately.

  • Never force a stuck valve — this could cause more damage.

Watch our video for a step‑by-step guide on how to isolate a leaking tap or appliance safely.