It is half two on a Tuesday. The job you booked for the morning — swap a valve, an hour at most — has turned into a seized fitting, a run to the merchant's and a floorboard that came up in three pieces. You have someone booked at three the other side of town who took the afternoon off work to be in. Your phone is sat on the windowsill with two missed calls on it and your hands are covered in flux.
Every trade has this day. Jobs overrun; that is the work. What separates the ones who keep the customer from the ones who pick up a one-star review is almost never the delay itself. It is the twenty or forty minutes of silence after you already knew you were not going to make it.
The delay is not what upsets them. The not knowing is.
Put yourself on their side of it. They have booked the afternoon off, they are sat in the front room with the kettle on, and every ten minutes they are looking out of the window. They cannot nip to the shop, cannot collect the kids, cannot ring their boss and say they will come in after all. They are stuck, and nobody has told them anything.
The moment you ring, all of that goes away. They may be annoyed at the change, but they get their afternoon back and they get a decision to make. People forgive a delay they were told about. They rarely forgive being left sat there.
Ring at the point you know, not at the point you are due
The mistake is waiting to see if you can pull it back. You are on your knees at half one thinking "I might still do it", and by ten past three you are ringing someone who has already given up on you. Make the call the minute you honestly know.
| Where you are | What to do |
|---|---|
| You will be under an hour late | Ring, give a new arrival window, ask if that still suits. |
| You will be more than two hours late | Ring and offer to move the job properly. Do not make them wait all afternoon for a rushed visit. |
| You will not make it at all | Ring — do not just text. Offer two firm alternative slots, one of them first thing. |
| Their job is urgent — no heat, no water, no power | Tell them straight away you cannot come, so they are free to call somebody else. Do not hold their slot to protect your booking. |
The exact words
On the phone, when they answer. Twenty seconds, no waffle:
"Hello Mrs Doyle, it's Tom the plumber, booked with you for three today. I'm ringing to be straight with you — the job I'm on has turned into a much bigger one and I'm not going to be with you at three. Realistically I'm looking at half four. Does that still work for you, or would you rather I moved you to first thing Thursday, eight o'clock, so you get your afternoon back?"
Name yourself, name the booking, give a time you actually believe, and hand them a choice. The choice is the bit most people miss.
Voicemail or text, if there is no answer:
"Hi Mrs Doyle — Tom, plumber, booked for 3pm today. The job before you has overrun badly. I can be with you between 4.30 and 5, or move you to 8am Thursday, whichever is easier. Reply here or give me a ring on 07xxx. Sorry for messing your afternoon about. Tom"
When you have to cancel outright:
"Hello Mr Kaur, it's Dave, booked to look at your consumer unit this afternoon. I'm not going to make it today and I didn't want to leave you sat waiting. The job I'm on can't be left safely tonight. I can do tomorrow, first call, half eight, or Friday afternoon — which is better? And if it genuinely can't wait, say so now and I'll tell you straight rather than hold you up."
And the one people forget — what you say to the customer whose house you are stood in:
"I'm going to be straight with you. This is a bigger job than the hour we talked about. I've got someone booked at three. I can either stay and finish, which puts us at about five and I'll ring them now to move them — or I can make it safe and watertight, leave it, and come back Thursday morning to finish it off. Which would you rather?"
If the extra work changes the price, say it there and then, before you carry on: "So there's no surprise at the end — the extra work is around £X on top of the £Y we agreed. Happy to write that down now."
The five-minute drill
- Stop and wash your hands. It takes less time than a bad review does.
- Work out a finish time you genuinely believe, then add half an hour to it.
- Ring first. Text only if they do not pick up.
- Give the new window and one specific alternative date — never "sometime later" or "I'll let you know".
- If they booked time off work, say sorry for that specifically. It lands differently.
- Write the new time in the diary before you put the phone down.
- Send a one-line text confirming what you agreed, so it is in writing for both of you.
- If the job after that one is now at risk too, ring them as well, in order.
Stop it happening every week
One overrun is a bad day. Three a week is a diary problem. A few things that hold up in practice:
- Book tight in the morning and loose in the afternoon. The first job is the only one you can time properly.
- Stop booking back-to-back jobs at opposite ends of town.
- Keep the last slot of the day empty two days a week and treat it as your catch-up slot. It fills itself.
- Quote a window, not a time. "Between one and three" gives you room that "two o'clock" does not.
- Say this line at every booking: "If I'm running late I will always ring you — I won't just turn up late." Then keep to it.
The other half of it is the phone itself. You cannot answer calls with your arms inside a boiler, and the customer waiting at home is trying to reach you at exactly that moment. Whether it is a mate on the office phone, a call answering service, or something like DigiAutomate's AI receptionist picking up and taking the details, the point is the same — you should not be choosing between the job in front of you and the person ringing about the next one.
When this will not fix it
Good phone manner does not fix a diary built on wishful thinking. If every job overruns, your estimates are wrong, not your day — start timing what jobs actually take rather than what you hope they take.
Sometimes you lose the customer anyway. If somebody has taken unpaid leave twice and you have moved them twice, no script saves that. Be gracious, do not argue, and let it go.
Never rush the job in front of you to protect the next appointment. Gas Safe work, Part P notifiable work, anything you sign your name to — late and right beats on-time and wrong, every single time. Leaving something unsafe to keep an appointment is not a scheduling decision.
And if a customer asks you to cover lost wages, or a delay causes them real financial loss, or you are relying on cancellation terms of your own, that is a contract question and not one to settle on a doorstep. Get your terms and conditions looked at properly by a solicitor, tell your insurer if there is any hint of a claim, and speak to your trade body if you have one. Say to the customer: "That's not something I can decide standing here — let me look at it and come back to you tomorrow." Then actually come back to them.
