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AI quoting tools for builders in the UK

Quotes for extensions, renovations and staged jobs are where many builders lose evenings. Job management apps turn a site visit into a priced, branded quote from your phone and track whether it's been accepted. A general AI assistant helps you write the scope of work clearly, so there's less room for argument later.

Prices checked on each provider's own page on 14 October 2026. Prices change, so the source link is next to each one.

The options, with prices

Tool	Price and free plan	UK notes and source
Tradify Job management for tradespeople: quotes, scheduling, timesheets and invoices.	Lite: £34 per user a month. Pro: £37. Plus: £44. Optional Instant Website £10 a month; text messages £0.10 each. 14-day free trial. No free plan; 14-day free trial with all features.	UK pricing in pounds, UK phone support. Source, checked 14 October 2026
Jobber Job management for service businesses: quotes, scheduling, invoicing and payments, with an AI Receptionist add-on.	Plans at $49, $139 and $199 a month ($29, $99 and $149 billed annually). Add-ons: Receptionist $29, Pipeline $49, Marketing $99 a month. Free trial, no card required. No free plan; free trial without a card.	Confirm UK pricing and support. Source, checked 14 October 2026
ChatGPT A general AI assistant for drafting emails, quotes, policies and posts, summarising documents and answering questions.	Free plan available. Paid plans (Go, Plus, Business, Enterprise) are priced per user per month; see the pricing page for current amounts. Unlimited everyday text chats, subject to abuse safeguards. Web search, file and image uploads, data analysis, image creation and 500 MB Library storage, each with its own usage limits. Ads may appear on the free plan in some countries.	Works in the UK. Ask for British English and UK context (VAT, HMRC) in your prompt. Source, checked 14 October 2026
Claude An AI assistant that is good with long documents, careful writing and summaries.	Free plan: $0. Pro: $20 a month or $200 a year. Max: $100 or $200 a month. Chat on web, desktop and mobile, web search, file creation, code, memory and Artifacts. Usage limits reset on a rolling five-hour window, with no fixed message count.	Prices are in US dollars. Source, checked 14 October 2026

What to check before you choose

Whether quotes can include your price list and markup, or only one-off line items.
Whether an accepted quote turns into a job and then an invoice without retyping.
Per-user pricing if you have staff or subbies who need the app.
VAT handling, including the domestic reverse charge if you work for other VAT-registered contractors.

A prompt to start with

Paste this into ChatGPT or Claude, or use it as the instructions for an AI receptionist, filling in the parts in brackets:

Write a clear scope of work for a quote from a building business. The job: [job description]. List what's included, what's excluded, who supplies materials, any assumptions (e.g. access, existing wiring or pipework), the payment terms and how long the quote is valid. Use plain British English and short bullet points.

Free tools for builders

Price a job with the quote and VAT calculator (20%, 5%, 0% and reverse charge), or work out your day rate. Comparing the two big job management apps? Read Tradify vs Jobber.

Questions

What's the cheapest quoting option for builders?

ChatGPT and Claude both have free plans you can use to write the wording of a quote. For proper quote-to-invoice software, Tradify starts at £34 per user a month, and Jobber's plans start at $29 a month billed annually. Prices were checked on 14 October 2026.

Are these prices in pounds?

Not all of them. Where a provider only publishes US dollar prices, we show dollars, so check the checkout price in pounds before you sign up.

Do you get paid if I sign up?

Some links may become affiliate links in future, and we'll label them when they do. It doesn't change what we list or how. See how we make money.

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