An overflowing toilet needs quick action. Call 020 7183 4810 for an emergency call-out while you take these immediate steps.
Toilet overflowing right now?
Emergency plumbers available across London.
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Same day callouts across Central and West London, fixed quotes and fully guaranteed work.
Immediate steps
- Stop flushing immediately
- Turn off the water supply at the isolation valve behind or beside the toilet, if accessible
- Use towels to contain any water on the floor
- Avoid using other drains or toilets in the property until the cause is identified
Why we do not recommend trying to fix the cause yourself
| Common online advice | Why it falls short |
|---|---|
| “Keep plunging until it clears” | Can push contaminated water further into the system or onto the floor. |
| “It is probably just paper, wait it out” | An overflow can be a sign of a blockage further down the drain that needs proper clearing. |
What it costs to wait
Overflow water is a hygiene hazard and can cause damage to flooring, and a delayed response gives water more time to spread and cause more damage.
How Olia’s Plumbing & Heating handles it
- Call 020 7183 4810 straight away
- We prioritise emergency overflow call-outs
- Our plumber clears the blockage and checks for wider drain issues
Get emergency help now
Fast response across London for toilet overflows.
Frequently asked questions
Should I turn off the water supply myself?
Yes, if the isolation valve is easily accessible — this is a safe step to take while waiting for our plumber.
Is this covered as an emergency call-out?
Yes, call 020 7183 4810 and we will prioritise getting to you quickly.
How do I stop this happening again?
Our plumber will identify the cause and advise on preventing repeat blockages.
Act fast — call 020 7183 4810 now.
Related services: How to Unblock a Toilet, Guide to Emergency Plumbing Call-outs, How to Unblock a Drain
Peyman
CEO & Founder — Gas Safe Registered Engineer
Peyman is the founder of Olia's Plumbing & Heating, a London based team with over 15 years of hands on experience in boiler installation and repair, central heating, gas work and emergency plumbing. He personally oversees jobs across Central and West London and writes these guides to help homeowners understand their heating systems.
- Gas Safe Registered
- 15+ years experience
- Covering all of London
