Use AI to write clear warranty and guarantee letters for completed work that protect you and reassure customers.
1. Open ChatGPT or Claude and paste the prompt below, filling in your basic warranty terms (like 'parts and labor covered for 90 days' or 'one-year guarantee on installation'). 2. Review the letter AI generates. It will typically include what's covered, what's not, how to contact you if issues arise, and normal wear-and-tear exclusions written in plain homeowner language. 3. Edit any specific details — add your business name, adjust timeframes, or clarify what counts as an emergency callback versus routine service. 4. Save this template in your phone notes or email drafts. Now you can personalize it in 30 seconds after every major job by just changing the customer name, address, and date. 5. Send it as a PDF attachment or in the body of your follow-up email. Customers appreciate the professionalism, and you've got written proof of what you promised if any disputes come up later. 6. Optional: Ask AI to create a shorter version for smaller jobs like fixture replacements, and a more detailed one for big projects like water heater installs or re-piping work.
Try this prompt today
“Write a professional warranty letter for a plumbing job I just completed. The work included [describe the job, e.g., 'replacing a hot water heater']. I offer a [timeframe, e.g., '90-day'] warranty on parts and labor. The letter should explain what's covered, what's not covered, how the customer can reach me if problems occur, and sound reassuring but protect my business. Keep the tone friendly and avoid legal jargon. Format it so I can copy, paste, and send it in an email.”
February 16, 2026
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