What a WhatsApp ETA does to the way customers see you

The gap between "I'll be there sometime this morning" and the knock on the door is one of the most damaging stretches in trades work. Not because anything goes wrong in it — usually nothing does — but because your customer spends it wondering whether you're coming at all.

They don't remember how good the work was if the whole morning went on watching the window. They remember the waiting.

Here's why one message before you arrive flips a customer's mood, and how that shift turns into reviews, rebookings and referrals.

What your customer is actually thinking while they wait

They're not thinking about your workmanship. They're thinking about whether you're coming.

A window like "between 9 and 12" doesn't feel like a plan from where they're sitting. It feels like their whole morning has been booked out by someone who might not turn up. They've taken time off work. They're looking up every time a van goes past. By half ten they're texting their partner he said between 9 and 12, still nothing — and that message is a small crack in trust that widens the longer you stay quiet.

What the silence costs them:

They can't leave the house, run errands or properly relax
Every unrelated van or knock is a false alarm
They start assuming the worst — forgotten, delayed, or blown off
The frustration builds quietly, then surfaces the moment anything else goes slightly wrong

By the time you actually arrive, some of the goodwill has already gone — even if you turn up perfectly on time inside the window you gave. Silence doesn't read as "busy tradesperson". It reads as disorganised.

None of that is about your skill. It's about communication, and it's entirely avoidable — our guide on how to stop "where are you?" calls for good has the message templates if you want to start manually.

Why one message flips the whole experience

"On my way, with you in about twenty minutes" replaces uncertainty with control. The moment it lands, the window-watching stops. They know when you're coming, so they can get on with their morning instead of guarding the front door.

This isn't a clever trick. It's the same shift every delivery app has spent a decade training people to expect. Order food and you don't wait blind — you watch the dot move. That visibility feels normal now, close to a basic right.

Trades work has largely been left out of that. Customers still get a vague morning-or-afternoon slot and are expected to sit tight. Which is exactly why the ones who send an update stand out — it takes almost no effort and hardly anyone bothers.

WhatsApp is the obvious channel, because it's already where your customer's attention is. Ofcom's Online Nation 2025 report found 90% of UK online adults use it — 44.2 million people — and 76% use it daily. Nothing to download, no account to create, and very little chance of the message going unseen.

That's the whole idea behind sending an ETA on every job. You're not asking anyone to trust you blind. You're showing them you're already on it.

The line between a heads-up and a five-star review

Reviews aren't really about the pipework or the wiring. They're about the feeling the customer is left with — and that feeling starts forming long before you park the van.

There's a well-established idea in behavioural psychology called the peak-end rule: people judge an experience by its most intense moment and by how it ended, rather than by averaging the whole thing out. It's why a brilliant job can still be remembered badly if the worst part of it was bad enough.

Apply that to a call-out. If the most stressful moment of the day was a morning spent watching the clock, that's the peak that sticks — even when the actual work is flawless. Send a heads-up instead and you replace that peak with relief. The story the customer tells becomes "he messaged when he said he would, then turned up exactly when he said" — which is a five-star opening line before you've touched a spanner.

The end of a job decides how it's remembered. The start decides what there is to remember.

That's why it's worth pairing the ETA with the review request rather than treating them as separate jobs. By the time you mark the work done, you've already set the customer up to feel good about the whole thing. The request just catches that while it's still fresh.

What happens to repeat work

When someone feels looked after from the first message, their brain files you under a single heading: reliable. That shortcut is worth more over a few years than most marketing spend, because reliable tradespeople get saved in contacts, recommended in group chats and rebooked without a second thought.

Think about how people actually pick someone for a second job. They rarely start a fresh search. They scroll their contacts, or they ask around — anyone got a decent electrician? The person who left them feeling informed is the name that comes up.

What that tends to unlock:

Saved contacts — you become "my plumber" rather than a search result
Referrals — people recommend you unprompted, which is the cheapest work you'll ever get
Less pressure on price — trust takes some of the heat out of shopping around
Faster rebooking — no back-and-forth, just "can you do the bathroom too?"

None of that comes from being the cheapest quote in the area. It comes from small, consistent touches that most tradespeople skip, because they assume it's admin they haven't got time for.

Doing it in one tap from the van

Sending an ETA should take one tap. No typing a message, no pasting a Maps link, no fumbling with the phone at a red light. If it takes longer than that you won't do it consistently between jobs — and consistency is the entire point.

That's the gap OnMyWay was built to close:

You tap once as you leave the current job
Your customer gets a WhatsApp message with a live tracking link — nothing to install
It opens in their phone browser, showing your name, your Google rating and your arrival estimate
You drive; they watch your progress the way they'd watch a delivery

Marking the job done then triggers the Google review request through the same WhatsApp thread, timed for the moment the customer is most pleased with you. No sticky notes, no remembering to ask at the end of a long day.

It isn't a CRM. Nothing to import, nothing to configure, nothing for your customer to download — there's more on the mechanics in our guide to ETA notifications for customers. It's a flat £25/month with everything included, with a 14-day free trial and no card required.

Before you roll it out across your customer base, it's worth understanding how your customer data is handled. For the client details you enter, you're the data controller and OnMyWay acts as your processor — the messages go out in your name, using the number you entered.

Two plumbers, same skill, different morning

Same trade, same price, same van. The only difference is one message.

Without an ETA message:

Gives a vague morning slot, then goes quiet
Customer waits, checking the window
Arrives on time, but the customer is already worn down by the wait
Packs up and leaves without mentioning reviews
The review never gets written, because nothing prompted it

With a live ETA:

Sends the ETA on leaving the previous job
Customer sees the link, relaxes, gets on with the morning
Arrives when expected — trust is established before the door opens
Marks the job done, which triggers the review request while satisfaction is at its peak
Customer leaves a review and saves the number

Same skill, same price, different outcome — because one of them removed the anxiety before it had a chance to build.

Frequently asked questions

How do I send a live ETA to a customer on WhatsApp?

With OnMyWay you tap one button as you leave a job or set off for the next one. Your customer gets a WhatsApp message with a live tracking link showing your name, your Google rating and your estimated arrival — with nothing to install at their end.

Do customers need to download anything to see my ETA?

No. The tracking link opens directly in their phone browser, exactly like a courier or takeaway tracking page. Nothing to install and nothing to sign up for.

Will sending an ETA get me more Google reviews?

It helps in two ways. A customer who's been kept informed arrives at the end of the job in a better frame of mind than one who spent the morning wondering where you were — and OnMyWay sends the review request automatically when you mark the job done, so the ask actually happens rather than depending on you remembering it.

Is this the same as using a CRM to message customers?

No. There's no setup, no client imports and no training. It's a one-tap tool for sending live ETAs and automatic review requests, built to fit a trade day without adding admin.

The cheapest trust-builder you've got

An ETA costs you one tap. In exchange it removes the customer's anxiety, sets the tone before you've started the job, and leaves them in the frame of mind where a review actually gets written. In a trade where word of mouth and star ratings decide who gets called, that isn't a small thing.

You don't need to become a different tradesperson. You just need to close a communication gap that most of your competitors are still leaving wide open.

If you'd like it handled automatically, OnMyWay has a 14-day free trial with no card required — you could send your first live ETA on tomorrow's first job.