What to Do in a Plumbing Emergency: A Step-by-Step Guide

Stay Calm and Act Fast

Plumbing emergencies happen without warning — a burst pipe, a flooding kitchen, or a suddenly overflowing toilet. The first five minutes are critical. Water damage spreads at roughly 150 litres per hour from a single burst pipe, and mould can begin growing in affected materials within 24 hours. Knowing what to do before it happens is the single biggest thing you can do to protect your home.

Step 1: Turn Off the Water Supply

Stop the water immediately. Locate your main stopcock — usually found under the kitchen sink, in an airing cupboard, or near the water meter — and turn it clockwise to close it. If only one fixture is affected (a toilet, sink, or washing machine), look for the isolation valve on the supply pipe feeding that appliance and turn it a quarter-turn with a flathead screwdriver.

Don't know where your stopcock is? Find it now, before you need it. Every adult in your household should know its location.

Step 2: Turn Off the Boiler and Isolate Electricity

If water is leaking near your boiler, switch it off at the programmer or thermostat. If water is near any electrical wiring, sockets, or fuse box, turn off the mains electricity at the consumer unit before touching anything — water and electricity are a lethal combination.

Step 3: Drain the Pipes

Open all cold taps to drain water from the pipe network. This reduces pressure and limits how much water escapes from the leak point. Don't run hot taps yet — let the boiler cool first to avoid scalding.

Step 4: Contain the Damage

Lay towels and position buckets under any dripping water. Move electrical items, rugs, and valuables away from the affected area immediately. If water is coming through a ceiling, carefully pierce the plaster at its lowest point to channel water into a bucket — this prevents the weight of accumulated water from collapsing the ceiling in a single destructive event.

Step 5: Call a 24/7 Emergency Plumber

Call your emergency plumber immediately. Give them the location of the leak, whether the water is off, and whether there's any electrical hazard. A good emergency plumber will give you additional instructions over the phone while they're en route. Our team aims to be on site within 60 minutes across Keighley and West Yorkshire.

Step 6: Document Everything for Insurance

Before mopping up, photograph the damage thoroughly. According to the Association of British Insurers, water escape is the most expensive type of domestic property claim, averaging £2,800 per incident. Your insurer will want evidence of the initial state of damage before remediation begins.

Step 7: Ventilate Immediately

Open windows and doors to accelerate drying. Mould begins to form within 24–48 hours in damp conditions and can cost an additional £500–£3,000 to remediate if left unchecked. If you have a dehumidifier, deploy it in the affected room as soon as the leak is stopped.

Common Plumbing Emergencies: What They Mean and What to Do

• Burst pipe: Often caused by freezing in winter or old pipe corrosion. Shut off the main stopcock and call immediately — a burst pipe can expel 400 litres per hour.
• Overflowing toilet: Turn off the isolation valve behind or beneath the toilet. Do not flush again. Call a plumber if plunging doesn't clear the blockage.
• No water: Check whether neighbours are affected first — it may be a street main fault. Call your water supplier, then a plumber if the issue is within your property.
• Gas smell: Do not use any switches or open flames. Open windows, leave the building, and call the National Gas Emergency Service on 0800 111 999 immediately. Do not re-enter until given clearance.