How to do it
Create a Project called Quotes
Projects are self-contained workspaces with their own chat history and their own knowledge base. One Project for quoting keeps your pricing context out of every other conversation. Free accounts can create up to five Projects, so this costs nothing to try.
Upload your last ten to fifteen real quotes
This is the step that does the work. Claude accepts PDF, DOCX, CSV, TXT, HTML, ODT, RTF and EPUB, up to 500MB per file and 20 files per chat. Export the quotes you were proud of, the ones that closed. Strip customer names and addresses first. Your own past work is a better style guide than any instruction you could write.
Upload the price list as a CSV, not a screenshot
Put your labor rates, common part costs, trip charge and markup into a spreadsheet and save it as CSV. Claude reads text and tables in these files directly. A photo of a printed price sheet works far worse: for non-PDF documents, Claude does not interpret images embedded in the file, it only pulls the text.
Write the project instructions once
Projects let you set instructions that shape every chat inside them. Write yours plainly: the trade you are in, who reads these quotes, the sections every quote must contain, whether you show line-item pricing or a single number, and the fact that all prices must come from the uploaded price list and nothing else. Ten sentences is enough.
Feed it the job the way you would tell a coworker
Start a chat in the Project and describe the job in plain speech. 'Two-story colonial, 1990s build, replacing a 3-ton condenser and coil, existing lineset stays, attic air handler, customer wants the 10-year parts warranty.' You do not need to format anything. The Project already knows your structure.
Ask for the assumptions section explicitly
This is the part that saves you money. Tell Claude to end every quote with a short list of what the price assumes and what is excluded: existing electrical is to code, no duct modification, permit fees billed at cost, price good for 30 days. Most change-order fights come from something nobody wrote down.
Read the numbers line by line before you send it
Give a clear, specific instruction about the output you want and you get a much better first draft. But drafting is not verifying. Check every quantity, every price, and the arithmetic. Claude is producing a document that matches your examples, and a plausible wrong number looks exactly like a right one on the page.
Where this goes wrong
The parts most guides skip, and the ones that actually cost you money:
- It does not know your prices. It only knows what you uploaded. If your price list is 14 months old, your quotes will be 14 months old. Copper and equipment pricing move. Put a calendar reminder to re-upload the price list quarterly and delete the stale version, or you will confidently quote last year's numbers.
- Scanned quotes are weaker input than you think. Claude analyzes both text and visual elements in PDFs of 100 pages or fewer, and processes text only beyond that. But for DOCX and other non-PDF files, embedded images are not interpreted at all. If your old quotes only exist as photos or scans, export fresh ones as text or PDF instead.
- Enhanced project knowledge needs a paid plan. Free accounts get Projects, but retrieval across a larger knowledge base is only available on paid plans. Pro runs $20 a month, or $17 a month billed annually, and includes unlimited Projects. If you want to load three years of quotes rather than a dozen, that is the line you cross.
- This is the wrong tool for a takeoff. Claude cannot measure a roof from a photo, count fixtures off a blueprint reliably, or price a job it has not been told the scope of. It writes the document once you know the job. If you are still figuring out quantities, you are at the wrong step.
Quote & Estimate Generator
Type a job in plain English, get a professional branded estimate.
Common questions
Do I need to pay for Claude to do this?
No. A free account gets you Projects, capped at five, plus file uploads. Pro is $20 a month, or $17 monthly billed annually, and adds more usage, unlimited Projects, and enhanced project knowledge. Start free and upgrade when the usage limits actually get in your way.
Is my pricing data safe to upload?
Read the terms for the plan you are on before uploading anything you consider a trade secret. Team and Enterprise plans state that organizational content is not used for model training by default. If you are uneasy, upload rate structure and markup logic without supplier-specific cost data.
How is this different from using ChatGPT for quotes?
Functionally very similar. Claude's Projects and ChatGPT's custom GPTs and projects both let you attach persistent files and instructions. Pick whichever you already pay for. The value is in the uploaded examples and price list, not the brand on the box.
Can it send the quote to the customer?
No. It writes the text. You paste it into your field service software, your invoicing tool, or your own template and send from there, which is what you want anyway since that is where the accepted signature and the job record need to live.
Sources
- What are projects? — Claude Help CenterProjects are self-contained workspaces with their own chat histories and knowledge bases, support per-project instructions, cap free accounts at five, and reserve enhanced project knowledge for paid plans.
- Upload files to Claude — Claude Help CenterSupported file types, the 500MB per-file and 20-files-per-chat limits, visual analysis on PDFs of 100 pages or fewer, and that embedded images in non-PDF documents are not interpreted.
- Claude pricing — AnthropicFree plan exists; Pro is $20 per month or $17 per month billed annually and includes unlimited projects; Team plans do not train on organizational content by default.
- Prompting best practices — AnthropicClear, specific instructions and concrete examples produce materially better output than vague requests.
Related guides
- How to use ChatGPT for quotes and estimates
- AI for plumbing quotes and estimates
- How to use ChatGPT for follow-up emails
- How to use ChatGPT for job notes
Want this built for you instead?
Tell us the job you keep doing by hand. If we can automate it, we will quote it. If we cannot, we will tell you that too. No calls, everything in writing.