A leak that appears after you left the job

2 days ago
3 min read

Introduction

The phone goes at eight in the evening. There is water coming through a ceiling, or a puddle under a sink, and you were there this afternoon. The customer is not asking whether it is your fault. They have already concluded that it is, and given the timing that is a reasonable conclusion for them to reach.

Sometimes they are right. Sometimes a joint you never touched has failed because the system was disturbed, or a pinhole in old pipework has opened, or somebody has knocked a compression fitting while putting things back in a cupboard. None of that matters in the first five minutes. Stopping the water is all that matters.

1. A leak that appears after you left needs stopping before it needs diagnosing

Water damage escalates by the hour. Speed is the whole priority.

Tell them how to isolate it immediately

Over the phone, before anything else. Stopcock, isolation valve, or the nearest thing you can talk them through. Every minute of running water increases the bill. Stay on the phone until it stops.

Go, or arrange somebody, quickly

Attendance is what determines how this conversation ends. A plumber who turns up that evening is almost never the villain of the story afterwards. Go if you can.

2. Diagnose it properly once the water is off

Assumptions in either direction are expensive. Establish the facts first.

Find the actual source before saying anything about fault

Water travels. A leak appearing under a sink may be from a pipe, an appliance, a seal, or the wall behind it. Do not concede or deny until you know. Take the time to find it.

Photograph what you find

Before you touch it. If this becomes a dispute about liability or insurance, contemporaneous photographs are what settle it. Date them.

3. Be straightforward about whose fault it is

Your reputation is built in exactly these moments. People talk about how you behaved.

If it is yours, say so and fix it free

Immediately, without hedging. A plumber who owns a mistake and repairs it promptly usually keeps the customer and gets recommended for the honesty. Do not charge.

If it is not, explain calmly with evidence

Show them the failed component and why it is unrelated. Then quote for the repair fairly rather than punitively. Offer to do it now.

4. Deal with the consequential damage question

This is the part that becomes serious. The damage often exceeds the plumbing.

Know what your insurance covers

Damage to decoration, flooring, a ceiling, belongings. Understand your policy before you are standing in somebody's living room being asked about it. Check the limits.

Do not admit liability for the damage on the spot

Be sympathetic, be helpful, and say your insurer will deal with it if it is your responsibility. Anything else can invalidate cover. Give them the insurer's details.

5. Reduce how often this happens

Most callbacks are preventable. Ten minutes prevents most of them.

Pressure test and check before leaving

Run everything, look at every joint you made and the ones you disturbed, and go back after twenty minutes with a dry cloth.

Tell the customer what to watch for

Where to look in the next few days and what to ring about. A customer who checks a joint on day one finds a weep rather than a flood.

Conclusion

Stop the water before diagnosing anything: talk them through the stopcock or isolation valve on the phone, because every minute of running water raises the cost, and then attend quickly, since a plumber who turns up that evening is rarely the villain afterwards.

Find the actual source before saying anything about fault, because water travels and the cause may be unrelated to your work, and photograph what you find before touching it. If it is yours, say so plainly and repair it free. Know what your insurance covers for consequential damage, be sympathetic without admitting liability on the spot, and prevent recurrence by pressure testing, rechecking after twenty minutes, and telling the customer what to watch.