General Contractors, Milestone Draw Payment & Progress Verification
Turns a contractor's payment schedule into explicit, photo-verified milestones a client approves criterion by criterion, so draw payments clear faster and disputes over vague completion terms disappear.
This blueprint is free. Copy the master prompt below, build it with your own time, and the only outlay is a few low-cost tool subscriptions. Use it inside your own business, or sell it to clients. The numbers further down are what you can charge, not what you pay.

The $65,000 Kitchen Remodel That Almost Stalled Over One Word
Read the articleWho you sell it to
General contractors and renovation companies running multiple projects at once (typically doing $500k-5M in annual project volume) who are tired of chasing draw payments held up by vague milestone language or verbal disagreements about what's actually done.
If you sell it, here is the money picture:
The first tile is the value of your client's own jobs, which is the reason they will pay you. The other two tiles are what you charge them.
How it works
The contractor sets up a project with a clear draw schedule: specific dollar amounts tied to specific milestones, each with explicit completion criteria the client agreed to upfront. As work reaches each milestone, the contractor photographs proof against those exact criteria and submits it. The client reviews the photos criterion by criterion, right from a text link, approving or flagging each one individually rather than one blanket sign-off.
Approved milestones generate a payment request automatically. Flagged issues pause that milestone's payment until resolved, with a simple log tracking the fix, so disagreements get handled explicitly instead of becoming a verbal dispute weeks later.
What to expect
The core photo-and-approval flow is straightforward to build. The part that takes real care is the milestone criteria builder: resist the urge to ship with generic template criteria like 'demo complete,' since vague language is exactly what causes the disputes this tool exists to prevent. Push contractors during setup to write specific, checkable criteria for their actual project (what exactly counts as demo being done, rough-in being done, and so on), since a criterion a client can verify by looking at a photo is the whole value proposition here.
Test the flagged-issue pause logic carefully, since a milestone that keeps requesting payment without anyone noticing an unresolved flag defeats the entire point. Once the base build works, common follow-up requests include a simple change-order flow for scope changes mid-project (since renovations rarely go exactly as planned), a shared photo timeline the client can look back through after the project's done, and integration with the contractor's existing accounting software for the payment records this tool generates.
Master prompt
You are an expert full-stack builder. Build a production-ready tool that… (the complete master prompt, custom input fields, build phases, pricing guidance and sales script are part of this blueprint.)
Build phases
Required tools
Lovable or Base44
Supabase or Lovable Cloud
Database and photo storage for projects, milestones, and criteria evidence
Free tier available, usage-based beyond that
Sign upTwilio
SMS delivery for milestone notifications and payment reminders
Pay-per-message, roughly $0.0079/SMS in the US
Sign upStripe
Optional in-app payment collection at each approved milestone
2.9% + 30c per transaction (standard rate)
Sign upAppBuild.DIY (Vibes)
Wraps the deployed web app into native iOS/Android apps plus a polished PWA. Enable the Photos/Camera Native Capability for on-site milestone documentation, and native push notifications for approvals, payments, and flagged issues. Handles branding and app store submission.
Free up to 10 users, $49/mo for 1,000 users, $99/mo unlimited
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