Use AI to draft clear subcontractor instruction memos in under 3 minutes that prevent costly rework.
When scope changes mid-project or you need to clarify expectations with a subcontractor, writing a clear instruction memo prevents confusion and costly mistakes. But crafting these carefully—balancing firmness with professionalism—takes time you don't have on a busy site. 1. Open ChatGPT or Claude and briefly describe what needs to happen: the trade, the specific task or correction, the deadline, and why it matters. Include any relevant context like RFI numbers or plan sheet references. 2. Ask AI to draft a short, professional instruction memo that's direct but respectful. Request it include: what needs to be done, by when, reference to any drawings or specs, and a line confirming they'll acknowledge receipt. 3. Review the draft. Add job-specific details like your project number, correct names, or safety requirements AI wouldn't know. Adjust tone if needed—firmer for repeated issues, friendlier for first-time clarifications. 4. Copy into an email or print for the site file. Send it immediately while the issue is fresh, and you've created a clear paper trail that protects the schedule and prevents he-said-she-said disputes later. This approach turns a 15-minute writing task into a 3-minute review, so you spend less time at the desk and more time keeping the job moving.
Try this prompt today
“I need to write a professional instruction memo to my electrical subcontractor. They installed outlet boxes at the wrong height in units 4-7 (should be 18 inches above counter per plan sheet E-3, they're at 24 inches). This needs to be corrected by end of day Friday so drywall can start Monday. Draft a clear, firm but respectful memo that explains the issue, references the plan, gives the deadline, and asks them to confirm receipt and their correction plan today.”
March 17, 2026
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