ChatGPT for Plumbers:5 Prompts That Win More Jobs and Cut the Admin
ChatGPT for Plumbers:
5 Prompts That Win More Jobs and Cut the Admin
You became a plumber because you’re good with your hands and you know your trade. Not because you enjoy writing quotes at 9pm, chasing review requests that feel awkward to send, or trying to find the right words when a customer doesn’t answer the door. These five prompts handle all of that — so you can stay on the tools where you actually earn money.
UK plumbers lose an estimated 8 hours of productive time every week to admin. That’s one full working day, every single week, spent writing quotes, answering customer messages, chasing reviews, and drafting job ads — instead of turning a spanner.
The cruel irony is that most of that time is spent on writing tasks that follow the same basic pattern every time. A quote is always a quote. A review request is always a review request. A no-show message is always a no-show message. The words change slightly. The structure never does.
ChatGPT is extraordinarily good at structured writing tasks. Brief it properly — with the right context about your business and the specific job — and it produces professional, ready-to-send output in under 90 seconds. Every prompt below is built on the CRAFT Method, a five-part structure that tells ChatGPT exactly what it needs. No vague instructions. No generic output. Something that sounds like it came from a professional plumbing business — because it did.
Thank you for asking me to quote for your annual boiler service at 22 Birch Lane. I’ve set out the details below so you have everything you need to make a confident decision.
Work included: Full annual boiler service to manufacturer specification — safety checks, flue gas analysis, heat exchanger inspection, controls check, and filter clean. Certificate of service issued on completion.
Investment: £120 including all parts and labour. No call-out charge.
Gas Safe: I am Gas Safe registered (No. XXXXXX) and fully insured. All work is certified and documented.
I have availability this week from Wednesday. Shall I send over some times? I’d be happy to work around you.
Kind regards,
Dave Pearce Plumbing & Heating
Before you start: what you need
Go to chat.openai.com and create a free account. It takes two minutes and costs nothing. You do not need ChatGPT Plus. The free version handles everything in this guide without any limitations for these tasks.
Prompt 1 — The Professional Quote Generator
A quote is not just a price. It is the thing that tells a customer whether they can trust you with their home. When a customer receives three quotes — one from you on WhatsApp, one from a well-presented PDF, and one from a professional email — the price they choose is rarely the lowest. It is almost always the most professional-looking.
This prompt takes your job notes and produces a complete, professional written quote with all the sections a customer needs to say yes with confidence: scope, price, your Gas Safe credentials, and a clear next step.
You are a professional plumber writing a formal job quote for a residential or commercial customer in [UK / USA]. My business: [Your name] Plumbing [& Heating if applicable], based in [your town/city]. I am Gas Safe registered [number: XXXXXX] [delete if USA — use your state licence number instead]. I carry £[X]m / $[X]m public liability insurance. Customer: [Customer name], at [property address or brief description — e.g. "a 3-bed semi in Sheffield"]. Work required: [Describe the job in your own words — e.g. "annual boiler service" / "replace the bathroom suite including toilet, basin and bath" / "fix leak under kitchen sink and replace stopcock"]. My price: £[X] / $[X] including parts and labour. [VAT registered / not VAT registered — delete as appropriate]. My availability: [e.g. "I can start Wednesday this week" / "earliest slot is week commencing [date]"] Write a professional quote email I can send directly to the customer. Include: 1. A warm opening that references the specific job 2. Scope of works — clear bullet points of exactly what is and is not included 3. My price clearly stated with payment terms [e.g. "payment on completion" / "50% upfront, balance on completion"] 4. My Gas Safe / licence credentials and insurance 5. A friendly but confident next step that invites them to confirm Tone: professional, warm, confident. Sound like a tradesperson who takes pride in their work. Not corporate. Not salesy.
Prompt 2 — The Emergency Call-Out Reply
A customer messages at 7am. Burst pipe. Water everywhere. They need someone now. You see the message between jobs and need to reply quickly — professionally, clearly, with the right information about whether you can come, when, and what your call-out charge is.
Under pressure, most plumbers send either too little (“Can do this afternoon, call-out is £85”) or spend five minutes drafting something that still doesn’t cover everything. This prompt produces the right reply in 45 seconds.
You are a professional plumber writing a reply to a customer with a plumbing emergency. My business: [Your name] Plumbing, [town/city]. Customer name: [First name] Their emergency: [Brief description — e.g. "burst pipe in kitchen" / "boiler completely stopped working, no heating or hot water" / "toilet overflowing and won't stop"] Can I attend today? [Yes, at approximately [time] / No, earliest is [date and time]] My call-out charge: £[X] / $[X] [plus / including] first hour of labour Is this an emergency rate or standard rate? [Emergency / Standard] Write a professional, warm reply — suitable for WhatsApp or email — that: - Acknowledges the urgency and reassures them - Confirms whether I can attend and when - States my call-out charge and what it covers clearly - Asks them to confirm if they want me to come - Keeps it under 80 words Tone: calm, professional, reassuring. Like a plumber who’s seen this before and knows exactly what to do.
Prompt 3 — The No-Show Message
You drove to the job. Knocked three times. No answer. Your phone shows the customer’s number but they’re not picking up. You’ve lost an hour of earnings and you’re frustrated. The message you send in that moment is almost always either too angry or too passive — and neither helps you get paid or rebook the slot.
This prompt writes a firm but professional no-show message that protects your business, gives the customer a clear path to rebook, and sets the expectation that a deposit will now be required — without sounding aggressive.
You are a professional plumber writing a message to a customer who was not home for a confirmed appointment. My business: [Your name] Plumbing Customer name: [First name] Job booked: [Brief description — e.g. "boiler service" / "bathroom tap replacement"] Appointment was: [Day, date, time — e.g. "Tuesday 24 June, 9am"] Did I charge a deposit upfront? [Yes / No] Travel time to get there: [e.g. "25 minutes each way"] Write a professional WhatsApp or email message that: - States clearly that I attended as agreed and they were not home - Is firm but not aggressive — calm and matter-of-fact - Asks them to contact me to rebook as soon as possible - States that I will now require a deposit to secure any future appointment - Mentions that I will need to prioritise other customers if I don’t hear back within [24 / 48] hours Keep it under 100 words. Tone: professional, firm, completely without anger. Written by someone who values their time without making it personal.
Prompt 4 — The Google Review Request
You finished the job. The customer said “brilliant, thank you, you’ve been a lifesaver.” And then you never asked them for a review, because it felt awkward and you forgot by the time you got to the next job. Six months later your Google profile has fourteen reviews. The plumber two miles away has sixty-three.
Reviews are how new customers choose between you and the next plumber on Google Maps. Volume matters more than you might think — research consistently shows that businesses with more reviews get more enquiries, even when their average rating is similar. This prompt makes asking feel easy.
You are a professional plumber sending a review request to a happy customer. My business name: [Your business name] (exactly as it appears on Google Maps) Customer name: [First name] Job I completed: [Brief description — e.g. "full bathroom refit at their home in [area]" / "boiler replacement" / "emergency burst pipe repair"] Anything specific they said: [e.g. "said they were really pleased with how quickly I sorted it" / "mentioned they’d recommend me to their neighbours" — or leave blank] Write a short, warm text message or WhatsApp (under 70 words) asking them to leave a Google review. It should: - Thank them warmly for choosing me - Reference the specific job so it feels personal, not a mass text - Ask directly but naturally for a Google review - Include this line: "If you search [My business name] on Google, you should see a 'Write a review' button" - End with my first name Tone: warm, genuine, like a person — not a marketing message.
Prompt 5 — The Job Ad for a Second Plumber
You’re turning down work. You need a second pair of hands — another plumber, a plumbing apprentice, or a reliable labourer. You post something on Indeed that says “plumber wanted, must be reliable, competitive pay” and you get four applications from people who are none of those things.
A job ad is marketing. It has to make the right person want to work for you and make the wrong person self-select out. This prompt writes one that sounds like your business — not a recruitment agency that has never met you.
You are a plumber writing a job advertisement to attract a qualified candidate. My business: [Your name] Plumbing [& Heating], based in [town/city]. [Brief description — e.g. "a busy sole trader specialising in domestic plumbing and boiler servicing across West Yorkshire, established 9 years" / "a small plumbing company with 3 engineers doing commercial and domestic work across South London"]. Role: [e.g. "Experienced domestic plumber for regular subcontract work" / "Plumbing apprentice (first or second year)" / "Labourer/mate for ongoing domestic plumbing and heating projects"] What I can offer: - Pay: £[X] per day / per hour / CIS subcontractor rate - Van [provided / not provided — own transport required] - Type of work: [e.g. "mainly domestic, no on-call, regular hours"] - Start: [e.g. "as soon as possible" / "from [month]"] What I need: - [Key requirements — e.g. "Gas Safe registered preferred, own tools, clean driving licence" / "Plumbing NVQ Level 2 in progress, keen to learn, reliable, physically fit"] Write a job ad of around 160 words for posting on Indeed, Facebook, or a trades forum. It should: - Sound like a real person runs this business and cares who joins - Explain what makes working with me genuinely good - Be direct about what I need - End with a simple, clear application instruction (reply with CV / WhatsApp me on [number] / email [address])
Why these prompts work: the CRAFT Method
Most people who try ChatGPT for business writing get disappointing results because they give it vague instructions. “Write me a plumbing quote” produces something so generic it could have come from any business anywhere. Every prompt above works because it uses the CRAFT Method — a five-part structure that gives ChatGPT the specific information it needs.
Start with your next quote
The fastest way to see what this does is to use it on a real quote you need to send today. Take the job details from your last site visit, paste them into Prompt 1, and compare what comes back with what you would have written manually.
Most plumbers who try this report one of two reactions: either “that’s exactly what I would have written, in a fraction of the time” — or “that’s actually better than what I would have written, because I would never have thought to include that section.” Either way, the quote goes out faster, looks more professional, and wins more jobs.