GETTA Help

Tap making a hammering noise: possible causes

Banging when a tap or valve closes can be water hammer, loose pipework or a worn valve, and repeated shock can strain fittings.

Likely causes

  • Fast-closing valves, high pressure, unsecured pipes or faulty washers can create vibration or impact.

Safe checks you can make

  • Note which outlet triggers it and whether it happens on hot, cold or appliance valves.
  • Do not open concealed pipework or adjust pressure controls without knowing their purpose.

When to stop and get urgent help

  • Shut off an appliance if banging is accompanied by leaking or violent pipe movement.

How a plumber can help

  • A plumber can check pressure, valve operation and pipe support and choose an appropriate remedy.