Guides · Updated 2026-10-17
ChatGPT for tradesmen (UK): what it's good and bad at
ChatGPT for tradesmen in the UK is best thought of as a quick typist who never gets tired: it turns your rough notes into a quote email, a review request or a post for your Google profile in seconds. It's poor at anything that needs a correct number, a current price or a safety judgement. This guide sets out what it's good and bad at for trades, what the free and paid plans include, and the rules we'd follow. It's independent: OpenAI has no affiliate programme and hasn't paid us.
Prices checked: ChatGPT's plan features on chatgpt.com/pricing and the Plus price in OpenAI's help centre, both read on 17 October 2026. Other assistants' prices come from our tools data, checked on 15 and 17 October 2026.
What ChatGPT is good at for trades
- Turning notes into tidy writing. Voice-note or type "bathroom, rip out, new suite, tile to ceiling, 6 days, customer supplies tiles" and get a clear scope of work back.
- Customer messages you put off. Quote follow-ups, payment reminders, explaining a delay, saying no to a job politely.
- Reviews. A short, friendly review request, and a calm reply to a bad review.
- Marketing words. Captions for before-and-after photos, Google Business Profile posts, a short "about us" for your website.
- Admin. Job adverts for an apprentice, a simple health and safety checklist to adapt, summarising a long supplier email.
- Explaining things to customers. Why a job costs what it does, or what a certificate is for, in plain English (you check the facts).
What it's bad at
- Numbers. It can get sums, VAT and quantities wrong while sounding sure. Use a calculator: our quote calculator, VAT calculator or day-rate calculator.
- Your prices and local rates. It doesn't know what materials cost at your merchant today, or what jobs go for in your area.
- Regulations. It may quote out-of-date or non-UK rules. Building Regulations, CIS, VAT and Making Tax Digital should be checked on GOV.UK.
- Facts about your customer or job. It only knows what you tell it, and it may fill gaps with guesses. Read every draft before it goes out.
Never use it for electrical, gas or structural calculations
This is the one hard rule. Don't use ChatGPT, or any AI chatbot, to size cables or protective devices, work out gas pipe sizes, flue or ventilation requirements, or size beams, lintels or padstones. A confident wrong answer here can hurt someone.
- Gas: anyone employed to work on gas appliances in domestic premises must be a Gas Safe registered engineer and competent in that area of work (HSE). The rules are in the Gas Safety (Installation and Use) Regulations 1998. If a customer reports a suspected gas leak, the HSE's advice includes calling the gas emergency freephone number, 0800 111 999.
- Electrical: electrical work in homes in England falls under Part P of the Building Regulations; see Approved Document P and your competent person scheme.
- Structural: structural work falls under Part A; see Approved Document A, and use a structural engineer's calculations.
ChatGPT can still help around these jobs: writing the customer letter that explains a certificate, or turning your own test notes into a tidy summary. The technical decisions stay with you.
Free vs paid: what you get
From ChatGPT's pricing page and OpenAI's help centre, read 17 October 2026:
| Plan | Price | What it adds for a trade |
|---|---|---|
| Free | £0 | Unlimited text chats (subject to OpenAI's abuse guardrails), with limited uploads, image creation, voice chats and deep research |
| Go | Not shown on the page we read | More messages with tools, uploads, image creation and voice chats, and longer memory. OpenAI says this plan may include ads |
| Plus | $20 a month, billed monthly | Advanced reasoning models, expanded uploads and deep research, projects, scheduled tasks and custom GPTs. No annual plan, OpenAI says |
| Business | Not shown on the page we read | For businesses, from 2 users, with admin controls |
OpenAI's help centre states the Plus price in US dollars. Check the price in pounds, and whether VAT is added, on the upgrade screen before you pay. The free plan is enough for most sole traders; our free vs paid ChatGPT guide goes through when paying makes sense.
ChatGPT against the alternatives
| Assistant | Free plan | Cheapest paid plan we recorded |
|---|---|---|
| ChatGPT | Yes | Plus $20 a month (Go price not read) |
| Gemini | Yes, with a Google Account | Google AI Plus $4.99 a month |
| Claude | Yes, limits reset every five hours | Pro $20 a month, or $17 a month on an annual plan |
| Microsoft 365 Copilot | No business free plan; trial offered | Copilot Business from £13.80 per user a month paid yearly, excl. VAT (offer; normally £16.10) |
If you only want cheap extra limits, Google AI Plus is the lowest price we've confirmed. If you already use Outlook and Word for the business, Copilot works inside them. For a full comparison see ChatGPT vs Claude vs Gemini vs Copilot for business.
10 prompts to start with
Fill in the brackets. Keep customers' names, addresses and phone numbers out; use placeholders and add the details yourself.
1. Scope of work from notes
I'm a [trade] in [town], UK. Turn these job notes into a clear scope of work for a homeowner, in British English, as a numbered list. Don't add anything I haven't mentioned and don't include prices. Notes: [paste notes].
2. Quote covering email
Write a short, friendly email to send with a quote for [job]. The total is £[amount] including VAT, valid for [30] days, with a [£ amount] deposit to book. Mention we're [insured / registered with scheme]. British English, no hard sell, under 120 words.
3. Quote follow-up
A customer hasn't replied to a quote I sent [7] days ago for [job]. Write a polite two-line text checking they received it and asking if they have any questions. Don't offer a discount.
4. First payment reminder
Write a polite first reminder for invoice [number] for £[amount], due on [date], now [5] days overdue. Include our bank transfer details as [placeholder]. Friendly but clear. British English.
5. Explaining a delay
Write a text to a customer explaining that [job] will start [2] days late because [reason]. Apologise once, give the new start date, and offer a quick call if they'd like. Under 60 words.
6. Review request
Write a short text asking a happy customer to leave a Google review after we finished [job]. Include [review link]. Don't offer anything in return. Under 50 words.
7. Reply to a bad review
Write a calm, professional public reply to this Google review: [paste review]. Thank them, don't argue about details, say we'd like to put it right and ask them to contact us on [phone or email]. Under 80 words.
8. Before-and-after post
Write three short captions for a before-and-after photo of a [job] in [area]. Plain and friendly, no hashtags in the first line, finish with how to get a quote. Don't mention the customer's street.
9. Apprentice job advert
Write a job advert for an apprentice [trade] in [town]. Include duties, what we offer, hours [hours], pay [rate], and how to apply. Plain English, under 200 words. Make sure the pay meets the National Minimum Wage for apprentices.
10. Turning down a job
Write a polite email turning down a request for [job] because [reason, e.g. it's outside our area / not our trade]. Suggest they look for a [type of trade] and thank them for thinking of us.
Check pay rates in prompt 9 with our National Minimum Wage checker; ChatGPT may not know the current rates. For more, see 16 ChatGPT prompts for tradespeople, or by trade: plumbers, electricians, builders, roofers, decorators, cleaners and landscapers. The prompt library has single prompts with filled examples.
Rules we'd follow
- Work out prices and quantities yourself, then let ChatGPT write the words.
- Read every draft before it reaches a customer.
- Keep personal details out of prompts. OpenAI says it may use conversations to improve its models, and you can opt out in ChatGPT's data controls settings.
- Never use it for electrical, gas or structural calculations.
- Check any rule or rate it mentions on GOV.UK or with your scheme provider.
If you employ people, write these down; our AI policy template is a starting point. For the other tools that help a trade, see the hub: best AI tools for tradesmen.
Sources
- ChatGPT pricing (plan features, Business from 2 users), read 17 October 2026.
- OpenAI help: What is ChatGPT Plus? ($20 a month billed monthly, no annual plan, data use and opt-out), read 17 October 2026.
- HSE: domestic gas FAQs (Gas Safe registration, gas emergency freephone number).
- Approved Document P and Approved Document A, GOV.UK.
- Gemini, Claude and Copilot prices: our tool pages, from each provider's pricing page.
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FAQ
Is ChatGPT useful for tradesmen?
Yes, for writing: quote emails, scopes of work, payment reminders, review requests and social posts. It saves typing time. It isn't reliable for prices, sums or regulations, so check those yourself.
Is ChatGPT free for tradesmen?
Yes. The free plan gives unlimited text chats, subject to OpenAI's abuse guardrails, with limits on uploads, images and voice. Most sole traders don't need to pay.
How much is ChatGPT Plus in the UK?
OpenAI's help centre lists Plus at $20 a month, billed monthly, with no annual option, when we read it on 17 October 2026. The amount you pay in pounds, and any VAT, shows on the upgrade screen.
Can ChatGPT do electrical or gas calculations?
Don't use it for them. It can give confident wrong answers. Cable sizing, gas work and structural sizing must follow the regulations and be done by a competent, registered person; gas work in homes needs a Gas Safe registered engineer.
Can ChatGPT write quotes?
It can write the wording around a quote. Work out the price yourself first, for example with a quote calculator, then paste the figures in and check every number in the draft.
Is it safe to put customer details into ChatGPT?
Keep names, addresses and phone numbers out and use placeholders. OpenAI says it may use conversations to improve its models unless you opt out in data controls.