Plumbing emergencies don't wait for business hours. When disaster strikes - burst pipes, flooding, or gas leaks - you need to act fast. This guide walks you through exactly what to do in the first few minutes to prevent major damage.
⚠️ Life Safety First: If you smell gas, evacuate immediately and call the emergency services (999). Do not use any electrical equipment or create any sparks.
1. Burst Pipe or Major Leak
First 60 seconds:
- Turn off the main water valve - Usually located under the kitchen sink or where the water pipe enters your home. Turning it clockwise stops the water flow immediately.
- Turn off the boiler - If hot water is leaking, switch off the boiler at the control panel to prevent damage.
- Locate the leak - Find where water is coming from (ceiling, wall, floor, under sink).
- Move belongings - Move furniture, electronics, and valuables away from the water.
- Call an emergency plumber - Phone immediately. Mention it's a burst pipe.
While waiting for help:
- Place buckets or towels under drips to contain water
- If water is coming through the ceiling, use a needle to puncture it further down - this drains water into one spot and protects electrics above
- Document the damage with photos for your insurance
- Open windows for ventilation
2. Flooding
Immediate action:
- Turn off the main water valve (see above)
- Turn off electrics at the circuit breaker if water is near sockets or appliances
- Get to higher ground if flooding is severe
- Call your emergency plumber and insurance provider
Safety reminder:
- Never walk through deep flood water - contamination and hidden hazards exist
- Do not use electrical pumps or appliances in flooded areas
- Keep children and pets away from the flooded area
3. No Hot Water (Boiler Issue)
Quick checks:
- Check the boiler display - is there an error code? Note it and tell your engineer
- Check the pilot light - if it's out, follow your boiler manual to relight it (or call us)
- Check the water pressure gauge - should be between 1–2 bar. If it's very low (<1), you may need to repressurise
- Check for leaks around the boiler - even small drips can cause pressure loss
If none of these help, call an emergency engineer. No hot water in winter is genuinely an emergency.
4. Gas Smell (Immediate Danger)
Do this NOW:
- Evacuate the building - Get everyone out immediately, including pets
- Call 999 or the Gas Emergency Line (0800 111 999) from outside
- Do NOT use electrical switches, lighter, or any heat source - Even light switches can ignite gas
- Do NOT return inside until the fire service or gas engineer confirms it's safe
Gas leaks are life-threatening. There is no situation where you handle this yourself.
5. Blocked Toilet (Overflowing)
Quick fixes:
- Stop the water - Lift the toilet cistern lid and lift the float ball to stop water flowing
- Don't flush again - You'll make it worse
- Use a plunger - Push firmly up and down 15–20 times. This often clears simple blockages
- If it works, flush once to confirm it's clear
- If plunging doesn't work, call an emergency plumber
Emergency Plumber Checklist
When you call, have this information ready:
- What happened? (burst pipe, flooding, no hot water, gas smell, etc.)
- Where is the problem? (kitchen, bathroom, boiler room, under stairs, etc.)
- How long has it been happening?
- Is water/gas still actively leaking?
- Your address and postcode
- Your phone number
- Is it a gas-related issue? (Always mention if it could involve gas)
Need Emergency Help Right Now?
Available 24/7 for genuine emergencies. Gas Safe registered engineers respond quickly.
Call Us Immediately: 02476 950 595Key Takeaways
- Know where your main water valve is - practice locating it before an emergency
- Gas smell = immediate evacuation. Never hesitate
- Turn off water first for most emergencies - this stops damage escalating
- Take photos for insurance while waiting for help
- Document what happened for your plumber to diagnose faster