Can a text message bot handle your customer enquiries?

Quick answer

A text message bot can handle simple, repetitive customer enquiries well: opening hours, booking confirmations, appointment changes, quote requests and order updates. It should not handle complaints, emergencies, complex quotes or anything sensitive without a person. The best set-ups answer the easy questions instantly and pass everything else to a human, quickly and politely.

A busy plumber cannot answer the phone from under a sink, so customers text instead. Most of those texts ask the same five things: are you free this week, how much for a callout, can you move my appointment, what is your address, have you received my photo. A text bot can answer most of those in seconds, day or night, and gather the details for the ones it cannot. Done badly, the same bot frustrates customers, sends them in circles and loses jobs. This guide explains what text bots can and cannot do, what they cost, the UK rules that apply and how to design one that customers do not mind using.

What a text message bot is

A text bot is software connected to a phone number that reads incoming SMS messages and replies automatically. Simple bots follow rules: if the message contains “hours”, reply with opening times; if it says “STOP”, unsubscribe the number. More advanced bots use AI to understand messages written in ordinary language and can look up information in your systems, such as a booking diary or order database, to give a specific answer.

The same ideas apply to messaging apps such as WhatsApp, which has its own business tools and rules. This guide focuses on standard text messages, because they work on every phone without an app.

What a text bot handles well, and what it should not

How a good text bot conversation flows

1. Acknowledge straight away, and say it is an automated reply. Customers should never be misled into thinking they are texting a person.
2. Answer the common question if the message is clearly one of them.
3. Ask one simple question if more detail is needed, such as a postcode or a preferred day.
4. Offer a person at every step: “Reply HELP to speak to the team” or “We will call you back within two hours.”
5. Hand over with context, so whoever picks it up sees the whole conversation and does not ask the customer to repeat themselves.
6. Confirm what happens next, then stop. A bot that keeps chatting after the job is done irritates people.

What it costs

Costs come in three parts: messaging fees, the software that runs the bot, and set-up. For messaging, at the time of writing, November 2026, Twilio’s UK SMS pricing page listed $0.056 per outbound message segment and $0.0075 per inbound segment to UK mobiles, with local numbers from $1.15 a month and mobile numbers $2.50 a month. Longer messages are split into segments and charged per segment, so keep replies short.

Software ranges from simple auto-reply tools bundled with booking or messaging platforms to custom-built bots connected to your own systems. A rule-based auto-responder may cost little; an AI bot that reads your diary and job records is a development project. Our AI-powered tools and automation start at £799, and connecting a bot to existing systems sits under our API development and integration, from £499.

The UK rules that apply

Texts sent in reply to a customer’s own enquiry, and service messages such as booking confirmations and reminders, are generally treated differently from marketing. Marketing texts, such as offers and promotions, need the recipient’s consent or must fall within the soft opt-in for existing customers, and every marketing text must give a simple way to opt out. The ICO’s guidance on direct marketing and privacy and electronic communications sets out the rules.

Data protection applies too. Text conversations contain names, numbers, addresses and sometimes photos of customers’ homes. Know where the bot stores messages, who can see them and how long they are kept, and say so in your privacy notice. If the bot uses AI, check how the provider handles the data you send it. Ofcom, the communications regulator, publishes consumer guidance on scam texts, which is a useful reminder to make your automated messages unmistakably genuine.

Designing replies customers do not hate

• Short and plain. One idea per message. No jargon, no long menus of numbered options.
• Sound like your business. A friendly local tone, consistent with how your team talks, signed with the business name.
• Never pretend to be a person. Being clear that a reply is automated builds trust; being found out destroys it.
• Do not link to anything suspicious-looking. Shortened links from unknown numbers look like scams. Use your own domain where possible.
• Respect the hour. Automatic replies at 2am are fine if the customer texted at 2am. Unprompted reminders should arrive at sensible times.
• Always offer a human route, and make sure someone actually picks it up.

A worked example

Take a small plumbing firm. Customers text the business mobile. The bot replies instantly: “Thanks for your message. This is an automatic reply from the team. Is this an emergency (water leaking now)? Reply YES or NO.” A YES triggers a call to the on-duty plumber’s phone and a reply with stopcock advice. A NO leads to two short questions, the postcode and a photo of the problem, then: “Thanks. We will text you a quote or call you back by 5pm tomorrow.” Questions about hours, prices for standard jobs and appointment changes get instant answers from the firm’s own information and diary. Everything else goes to the office inbox with the full conversation attached.

The plumber has not been replaced by a bot. The firm simply stops losing jobs to unanswered voicemail, and the office starts each morning with every enquiry already sorted by urgency.

Rule-based or AI: which kind of bot?

Rule-based bots follow a script. They look for keywords or numbered replies and send fixed answers. They are cheap, predictable and easy to check, which makes them ideal for confirmations, reminders, opening hours and simple menus. Their weakness is ordinary language: a customer who writes “can u come thurs instead, tues is no good” may not match any keyword and gets a confused reply.

AI bots read messages the way a person would and can cope with typos, slang and several questions in one text. Connected to your diary or records, they can give specific answers such as available slots or the status of an order. They cost more to build and need guardrails: clear limits on what they may say, rules for handing over, and regular checks that their answers are accurate. An AI bot must never invent a price, a date or a promise your business has not made. For most small businesses, the sensible route is to start with rules for the predictable messages and add AI only where customers’ wording varies too much for a script.

How to get started

1. Read a month of your texts. Sort them into the questions that come up again and again, the ones that need a person, and the ones that are urgent.
2. Write the answers first, in your own words, before choosing any software. If you cannot write a good answer, a bot cannot either.
3. Start with confirmations and reminders, which are low-risk and immediately useful.
4. Add instant replies to the top three or four common questions.
5. Set the handover rules: which words or situations go straight to a person, and who that person is at different times of day.
6. Review weekly for the first month, then monthly.

Tell customers about the change. A line on your website, invoices and voicemail greeting such as “Text us any time for quick answers and bookings” sets expectations and encourages people to use the faster route. Keep the phone number the same if you can, because customers already have it saved, and check with your provider that existing numbers can be connected before you commit.

Common mistakes

• No way out. A bot that loops customers through options without reaching a person loses them.
• Trying to automate everything. Complaints and complex quotes handled by a bot feel dismissive.
• Not connecting to real data. A bot that cannot see your diary will offer times you are not free.
• Marketing without consent. Sending offers to everyone who ever texted you can breach the rules.
• Nobody watching. Check the conversations weekly to see where the bot misunderstood people, and improve its answers.

Where a text bot fits

A text bot works best as part of a joined-up system: bookings in one diary, customer details in one place, reminders sent automatically. If those pieces do not exist yet, the bot has nothing to draw on. Our guides to booking system costs and choosing a CRM cover the foundations, and our custom business software, from £1,499, builds tools around how you work. Automated confirmations are transactional messages, separate from marketing, as our guide to transactional versus marketing emails explains for email. Quick, helpful replies are also one of the simplest ways to keep customers, as our guide to customer retention shows. Every Luxbranding price is on our pricing page.