It is past seven in the evening and a customer has opened your website. They want to ask about the price or whether you are free, but they don't want to phone. Maybe they are on the train, maybe at work, maybe they just don't enjoy talking on the phone. The page shows a phone number and a long contact form. They do neither, close the page and move on to the next business.
This scene plays out every day in small businesses. The customer wants you, but can't find the easiest way to reach you. In this post I explain how to add a WhatsApp button to your website from a business owner's point of view: why it works, where to put it, how the first message should read, and what a late reply costs.
Why customers choose to write instead of call
A phone call is an instant commitment. If the other side doesn't answer, you wait. If they do, you have to talk right now. A message removes that pressure. People think about what to ask, write when it suits them and read the answer when it suits them.
There is also habit. Most of us already spend much of the day in WhatsApp. Filling in a new form or writing an email is an extra step, and the more steps there are, the more people give up.
Being able to send a photo is another big advantage. A picture of a leaking tap, a haircut idea or a room to be painted is easier than a hundred words. You can give a more accurate first answer.
Of course not everyone likes to write. An older customer may still want to call. So WhatsApp should sit next to the phone number, not replace it.
Where to put the button
The easier the button is to find, the better it works, but it should not crowd the page.
- In the bottom right corner on a phone, staying in place. It remains visible as the visitor scrolls. It is where the thumb naturally reaches.
- On the contact page next to your phone number. "Call or write" gives a choice.
- On service pages, with a message specific to that page. The button on a dental implant page should not open with the same words as the one on a heating repair page.
- Near the top of the page, alongside the call button. Visitors should not have to phone once they have decided.
Two things to watch. First, the button must not cover the content; on small phones a button sitting on top of the text is annoying. Second, it must be obvious what it does: the familiar green icon with a short phrase like "Chat on WhatsApp" is enough.
A pre-filled first message
When the button is tapped, the customer's message box can open with a sentence you prepared. Your designer can set this up in a few minutes. The text should be short and clear: "Hello, I'm writing from your website. I'd like some information about booking."
A good pre-filled message does these things:
- It shows the message came from you. You can tell which page they wrote from and give the right answer.
- It gives the customer a start instead of an empty box. The first sentence can be hard to find; a ready text removes the barrier.
- It guides what they write. Adding "Could you also tell me the type of service and the days that suit you?" gets you the information you need in the first message.
Prepare a greeting for incoming messages too: "Hello, thank you for your message. I usually reply within an hour." It sets expectations from the start.
What a late reply costs
The most critical part of this is not the button, but the person behind it. A customer who writes expects a quick answer. People may forgive an unanswered phone call, but a written message that gets no reply feels colder.
Think of it this way. The customer has written to three businesses at once. The one who replies first often wins the conversation. If you reply the next day, the customer has either agreed with someone else or lost interest. You can't see that loss in any report, because that customer simply never came.
So before adding the button, ask yourself honestly: Can I look at messages during the day? What will the customer see when I can't reply? If you can't answer, a form or a phone number may be the more honest choice.
What WhatsApp Business gives a company
Customers messaging your personal number mixes work and private life. WhatsApp has a separate version made for businesses. In general terms it offers:
| Feature | How it helps |
|---|---|
| Business profile | Address, opening hours, short description and contact details in one place |
| Automatic greeting and "away" message | Tells customers when you can't reply |
| Quick replies | One-tap answers to common questions |
| Labels | Organize chats as new, quoted, completed |
| Catalog | Show products and services inside the chat |
Features change over time, so check the current version in the app. Even so, using a separate number and a business account makes sense for tidiness and for looking professional.
Outside working hours
Someone writing at eleven at night doesn't expect an answer before morning, but they aren't used to silence either. What you need to do is simple:
- Write your opening hours clearly next to the button or in the profile.
- Set an out-of-hours message: "I'm away right now, I'll reply from nine tomorrow morning."
- If you do urgent work (a locksmith, a heating engineer), give a separate number for emergencies.
- Check the night's messages first thing in the morning.
Add a privacy note too. Customers may share personal details. For sensitive information (health, legal) make sure with your own professional adviser whether messaging is appropriate under your profession's rules.
Frequently asked questions
Does the button show my phone number openly?
When a customer messages you, you see their number and they see yours. If you use a business number, your personal number stays separate.
Will I get too many messages to cope with?
The number may go up, which is usually a good sign. Quick replies and clear opening hours ease the load. If you fear you can't cope, you can show the button only on certain pages.
Do I still need a form and email?
Yes. Some customers want a written, formal record. Treat WhatsApp as an extra option, and don't remove the phone number or the form.
Conclusion
A WhatsApp button looks like a small addition, but it noticeably shortens the distance between you and the customer. Put it in the right place, write a ready greeting, be honest about your hours and, above all, reply in time. To place WhatsApp and your other contact options sensibly on your site, you can write to me through my website design page.