In most cases, it is better not to attempt an emergency plumbing repair yourself, but there are safe steps you can take to limit damage while you wait for help. Isolating the water and containing a leak are usually reasonable; dismantling pressurised pipework or valves is not.
The difference is between controlling the situation and trying to fix the fault. Keeping to the first usually limits damage without adding new risks.
What Is Usually Safe to Do
Depending on the situation, it may be safe to:
- Turn off the water at the stopcock or a local isolating valve, if you can reach it and it turns normally
- Catch drips in a bowl or bucket and move belongings away
- Stop using fixtures that are leaking or backing up
- Keep children and pets away from wastewater or the affected area
If the stopcock is stiff, do not force it. If water is near sockets, lights or appliances, keep clear and seek appropriate professional help.
Repairs Best Left to a Plumber
Some jobs carry a real risk of making the problem worse or causing injury. These include cutting or disconnecting pipework, taking apart valves or fittings that are still under pressure, using heat or open flames on pipes, and opening up ceilings, floors or walls to search for a leak.
Work on pipes near wiring, or anything involving an electric shower or other appliance, also brings electrical risks that are best avoided.
Plumbing problems also do not always come from where they appear. Water on a floor, for example, may come from a supply pipe, a waste connection or a seal, so a repair aimed at the wrong part may not stop the leak.
Why DIY Fixes Can Cause Problems
A quick fix that seems to work can sometimes hide a problem that continues out of sight. Tightening a fitting too far may damage it, and sealing products used on the wrong type of joint may not hold. If a DIY repair fails, the damage can end up greater than if the water had simply been isolated and left for a plumber.
When Small Jobs Are Reasonable
Some minor, non-urgent tasks, such as closing an isolating valve to a dripping tap, are generally within reach for many people. If you are unsure, it is better to stop and ask than to continue.
If you have already tried a fix before a plumber arrives, say so. Knowing what has been tightened, sealed or taken apart helps them understand what they are looking at and avoids surprises during the repair.
Our page on professional emergency plumbing repairs explains the types of urgent faults that are best handled by a plumber and how they are assessed.
If you are dealing with an urgent plumbing fault and are unsure what is safe to do, a plumber can talk you through the situation and explain the next step.