Free drawing audit

Upload 5 sheets. Get a RedMark Report back in 48 hours.

We'll scan your drawings, return a ranked list of coordination errors and documentation gaps, and show you — on your own project — exactly what your manual QA missed. No call required, no contract, no card. Just the report.

This is what you'll get back
RedMark Report — sample.pdf
Ranked issues · severity-colored · redmarked drawings · cost summary

Send us your drawings

Confidential. 48-hour turnaround.

Larger set? Leave this blank — we'll reply with a secure upload link.

Or book a 20-min demo if you'd rather walk through it live.

What you get back

In plain English. Inside 48 hours.

01

A ranked issues list

Every coordination gap, missing keynote, schedule mismatch, and annotation issue we find — sorted by severity. Plain-English explanation per issue.

02

Redmarked PDFs

Your sheets, with our markers and callouts overlaid directly on the drawings. Importable into Bluebeam Studio. No extra steps.

03

Cost-of-misses summary

A one-page summary of what those issues would have cost you downstream as RFIs, change orders, and rework — based on your firm's typical billable rate.

How it works

Three steps. 48 hours.

upload.pdf

You upload

PDFs only. Up to 5 sheets. Drag and drop.

scanning…
OCR → CV → Rules

We scan

Our engine reads every sheet. Drawings stay in our VPC. LLMs see only anonymised metadata.

your-report.pdf

You get the report

Inside 48 hours. Emailed to you. Plus an optional 20-min walkthrough.

Trust

Your drawings stay yours.

Encrypted at rest

AES-256 at rest. TLS 1.3 in transit.

Stays in our VPC

Drawings never leave RedMark's VPC.

No LLM training

LLMs see anonymised metadata only.

Deleted on request

We delete uploaded drawings on request and after the audit is delivered.

Read the full security model
Where it's running

Tested on live projects, not demo sets.

Shipping cadence
New checks weekly
v1 shipped March 2026. The check library grows every week, driven by what engineers in the field ask for.
Live proof-of-concept · London
37 storeys
Running QA on the mechanical package of a major London commercial tower — fire dampers, smoke control, congested basement coordination.
Engineering-rule checks
Calculated, not guessed
RedMark recalculates values from first principles — heater sizes from airflow and ΔT, MOCP against panel schedules — and flags numbers that don't compute.
Frequently asked

Five questions.

Is there a catch?

No. We email you the report and offer a 20-minute walkthrough. You can ignore the walkthrough — we'll still send the report. The audit is the wedge, not the upsell.

What if my sheets are sensitive?

Drawings stay in our VPC. LLMs never see them. We can also delete drawings after the audit is delivered. See the full security model.

What format do you need?

PDF. Single sheets or multi-sheet sets. No CAD or Revit files required.

How many sheets?

5 is the standard. If you want to send more, email sales@redmark.ai and we'll arrange it.

How long does it really take?

48 hours, business days. Many reports go out faster.

Ready?

Send us 5 sheets.

We'll do the rest. 48 hours, free, no obligation. Or book a demo if you'd rather walk through it live.