Why is my washing machine leaking?
Updated August 2026
Water on the floor around a washer usually traces to a loose or aged fill hose, or on front-loaders a torn or moldy door boot seal. A hose fitting that has backed off is a two-minute tightening, and a cracked rubber supply hose is a $10–40 swap that is cheap insurance against a flood. Note where the water shows up first, since a leak at the back points at hoses and a leak at the door points at the boot. The ranked causes below sort out the rest.
Safety first: a washer leak is a water-damage risk that can escalate fast, because a supply hose runs at household pressure and a burst hose can pour several gallons a minute onto the floor. Shut off the hot and cold supply valves behind the machine when you leave for a trip, and never run the washer unattended with hardened rubber hoses. Water pooling near a plugged-in appliance is also a shock hazard, so unplug the washer before you mop up and inspect under it.
Causes, most likely first
| Cause | How likely | The fix | Typical cost |
|---|---|---|---|
| Loose or aged fill (supply) hose | Most common | Hand-tighten the hose fittings, then replace old rubber hoses with braided stainless ones. Rubber hoses harden and split with age. | $10–40 |
| Torn or moldy door boot seal (front-loaders) | Common | A gasket that is ripped or rotted leaks during the wash. Clean it, and replace the boot if it is torn. | $150–350 installed |
| Cracked or loose drain hose | Common | Leaks show mainly during drain and spin. Reseat the clamp or replace the split hose. | $15–40 |
| Oversudsing from too much detergent | Common | Excess suds push water past seals. Switch to HE detergent and cut the dose to the recommended line. | Free |
| Failed pump seal or tub seal | Occasional | A worn seal at the pump or drum leaks from underneath. Replace the seal or pump. | $150–400 |
| Cracked dispenser or clogged detergent drawer | Occasional | An overflowing or cracked drawer dribbles down the front. Clear or replace the dispenser. | $0–60 |
Check these first
- Pinpoint where the water first appears: back-of-machine points at the fill or drain hoses, front points at the door boot or dispenser.
- Feel the hose connections at the wall and the machine for wetness and hand-tighten any that have loosened.
- On a front-loader, peel back the rubber door boot and look for tears, and for grime holding it open.
- Cut the detergent to the recommended HE dose and see if a sudsy overflow stops.
- Watch a full cycle: a leak only during drain and spin points at the drain hose or pump seal.
Prevent it next time
The highest-value habit here is replacing rubber fill hoses with braided stainless ones about every five years, since an aged hose that lets go is the leak that floods a whole floor. Keep the door boot clean and dry, and use less detergent than the cap suggests. Our washing machine maintenance checklist schedules the hose and gasket checks, and staying on top of the door gasket cleaning interval keeps the boot from rotting into a leak in the first place.
When to call a pro
Call a technician for a leak that comes from under the machine, which usually means a tub or pump seal and a partial teardown, or for a torn door boot you are not comfortable replacing. A boot runs $150–350 installed and a seal or pump repair $150–400. Weigh a big internal-seal job against the washer's age and the price of a new one using our washer lifespan guide and the home maintenance cost calculator.
Most of the causes above are maintenance problems wearing a disguise. OnOtto keeps the boring prevention on schedule so the 2 a.m. version doesn't happen.
Stop chasing symptoms, free for 30 daysFrequently asked questions
Why does my washer only leak during the spin cycle?
Leaks that appear only during drain and spin point at the drain path and the seals under load. During spin, the pump pushes water hard through the drain hose, so a loose clamp, a split hose, or a worn pump seal will weep exactly then and stay dry the rest of the cycle. High spin speed also stresses the tub seal. Check the drain hose connection and clamp first, then look underneath for drips that show up only when the drum is spinning fast.
How often should I replace washing machine hoses?
About every five years, and sooner if you see cracking, blistering, rust at the fittings, or bulging. Standard black rubber hoses harden and grow brittle with age until one bursts, usually at the worst possible time. Braided stainless steel hoses cost only a little more and resist that failure far better, which is why they are the recommended upgrade. Turning off the supply valves when you travel adds a second layer of protection against a hose letting go while you are away.
Can too much detergent make my washer leak?
Yes. High-efficiency machines use very little water, so a normal-detergent dose or an overfilled HE cap creates far more suds than the machine can handle. Those excess suds build pressure and push water past door seals and gaskets, showing up as a leak that is really an overflow. The fix is free: use detergent labeled HE, measure to the low line, and run a rinse-only cycle to clear the backlog. If the leaking stops with less soap, oversudsing was the cause.
Why is my front-load washer leaking from the door?
A front-loader that drips at the door almost always has a problem with the rubber boot that seals the door to the tub. Over time the folds of that boot collect lint, hair, coins, and mold, which hold it open a hair and let water escape, or the boot tears outright. Clean the boot thoroughly and inspect it for rips. A soiled boot may seal again once clean, but a torn one needs replacing, a $150–350 job with labor.