SHEET G-003 · ABOUT

Engineers still review drawings by hand. We thought that was strange.

Every other industry got new tools. Drawing review got a red pen and a scanner. redline is the fix, built by a technologist alongside the PEs who carry the liability.

“I'm not a PE. I'm a builder. I watched engineers lose nights and weekends catching the same errors over and over, and it bothered me enough to do something about it.”
D
DharamFounder · Technologist
15+Years in tech
MEPIndustry focus
2026In production use

The drawings went digital. The review didn't.

SHEET G-004 · WHY WE EXIST
THE WAY IT STILL WORKS Print the setPAPER Mark it in redBY HAND Scan it backFLATBED Email the PDFATTACHMENT AND AGAIN ON THE NEXT REVISION HOW REDLINE DOES IT Upload the PDFONE DROP AI flags defectsSIX MODES You make the callAPPROVE OR DISPUTE Stamped reportYOUR SEAL DONE. NO LOOP.

Same drawings. Same engineer. The difference is where the tedious part goes.

Who is actually behind this.

SHEET G-005 · OWNERSHIP
Parent Tradewind Operations Tradewind Ops LLC · Florida
Subsidiary redline AI drawing review for PEs

Every dollar of development comes from Tradewind and every line of code is written in-house. No venture capital, no offshore contractors, nobody outside the company touching your drawings.

What that buys you: a roadmap set by what PEs ask for rather than what a term sheet demands, and an operating company with other revenue behind your subscription.

Built for some people. Not for others.

SHEET G-006 · FIT

Built for

  • Solo PEs
  • Small M/E/P shops
  • Mid-size multi-discipline firms
  • Whoever signs the drawing
  • PDF review workflows

Not built for

  • BIM clash in the model
  • General contractors
  • Owners
  • Plan reviewers
  • Fully Revit-native teams

If Navisworks already runs nightly on your models, redline covers a different gap: the PDF pass that still happens by eye before a set goes out.

Four things we will not trade away.

SHEET G-007 · PRINCIPLES
01 · WE WILL

Publish what isn't built

Roadmap items are labelled ROADMAP, never implied as shipped. Catch us overstating and we'll fix the page.

02 · WE WON'T

Train on your drawings

Never used to train models, never shared between firms. That's in the Terms, not just the marketing.

03 · WE WILL

Keep you in charge

The AI proposes, you dispose. Your reasoning stays attached to the drawing.

04 · WE WON'T

Publish an accuracy number

One headline percentage would be marketing, not measurement. We'd rather run your own set.

Where the platform actually is.

SHEET G-008 · STATUS
GET STARTED

Try it on your drawings.

Pick a plan and go. No waitlist, no sales call, and a 14-day money-back guarantee on every monthly plan.

Multi-office firm, SSO, API, or a custom review pool? Talk to us about Enterprise.