Can I fix a leaking washing machine myself?

Often the easy ones — a loose fill-hose connection, a split fill hose, or a dirty door seal are homeowner fixes. A leak from underneath during a cycle points to an internal part and is a job for an appliance engineer.

Common plumbing problems

Washing machine leaking: causes and what to do

Guidance built with working UK plumbers · Last updated July 2026

A leaking washing machine is most often the fill hoses or their connections at the back, the door seal on a front-loader, or the waste hose. Where the water appears — back, front, or underneath — tells you which. First things first: switch it off at the socket and turn off its water.

Amber — plus an electrical caution. It's a mains appliance: switch it off at the wall socket and don't touch it standing in water.

Do this now

Make it safe. Switch off at the wall socket. Don't touch the machine while stood in water.
Turn off its water. Close the appliance valves behind it (the small red/blue taps on the fill hoses).
Water at the back → check and hand-tighten the fill-hose connections; inspect the fill hoses for splits and the waste hose where it enters the standpipe/trap.
Water at the front during a wash → inspect the rubber door seal for wear, splits or trapped debris; wipe it clean.
Water underneath mid-cycle → usually an internal hose, pump or seal — an appliance-repair job.

Likely causes

Where the water is	Likely cause
At the back	Fill-hose connection or split hose; waste hose
At the front, during a wash	Worn or dirty door seal (front-loader)
Underneath, mid-cycle	Internal pump, sump or seal — engineer
Only when it drains	Waste hose / standpipe connection

When to call a professional

Call an appliance engineer for internal leaks (pump, tub, sump) or anything that means opening the machine. If you're unsure about the electrics around the leak, don't risk it — get a qualified engineer or electrician. LeakScan gives guidance, not a substitute for a professional.

Questions, answered straight

Is a leaking washing machine dangerous?

Water plus a mains appliance can be — switch off at the socket first and don't stand in the water. Unsure about electrics? Get a professional.

Why does it leak from the door?

On a front-loader, a worn or dirty door seal, or trapped debris. Wipe and inspect; a perished seal needs replacing.

Can I fix it myself?

The easy ones — loose fill-hose, split hose, dirty seal — yes. A leak from underneath mid-cycle is an appliance engineer's job.

How do I turn off the water to it?

Use the small isolation valves on the fill hoses behind the machine (red hot, blue cold). Can't reach them? Use the stopcock.

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