Risk-free use guarantee1. You upload PDF drawings.
2. QC the set — Bluebeam-ready findings in minutes.
3. View issues as a PDF.
1. You upload PDF drawings.
2. QC the set — Bluebeam-ready findings in minutes.
3. View issues as a PDF.
Backed by Mark Cuban
Grammarly for construction drawings.
An invisible audit layer that catches drawing errors before they become rework, delays, and claims. View and manage issues in the tools you already use — drag-and-drop, or audit files directly in SharePoint, Autodesk, Trimble, Procore and more.
Featured in 👉
100,000+ Sheets Audited | Never miss a callout again | Processed project files purged on a published schedule (see Privacy — 14-day purge). | Risk-free use guarantee
Click to see what we do 👇
PDF in. Audited PDF out. You never leave your tools.
MarkedUp is an intelligent invisible layer inside the tools you already trust. While others provide a "first-pass," MarkedUp provides a final audit.
Step 1: Drop in your PDF set
Upload your architectural, structural, and MEP drawings. We handle the heavy lifting.
Step 2: View your MarkedUp PDF
We export all found issues as standardized markups directly into a PDF opened in Bluebeam, Autodesk, Procore, or wherever you manage PDFs today.
Step 3: Bid and build better
Your team resolves them exactly as they do today, just without the 40 hours of manual searching.
Direct integrations with 👉
Coming soon
Coming soonOne missed callout costs $70,000.
A MarkedUp audit costs a fraction of that.
You are not buying software. You are buying a final audit that catches the silent errors before they reach the field.
Dont like the results? Full refund guaranteed on pay-per-audit.
Cost Of One Error
$100K+
Rework, procurement, delays
VS
Annual Subscription
$5,000
Per office per year. Unlimited.
MarkedUp pays for itself the first time it catches a single error.
Drawing errors are inevitable. Find them before you bid, build or share with markedup.ai.
Whether you issued the set or you're about to build from it undetected errors cause the same damage: rework, RFIs, back-charges, and blown schedules.
Precon & Estimating
Dont lock your GMP on uncoordinated bid sets.
- Catch missing details before subcontractors issue exclusions.
- Audit massive bid sets in minutes during the bidding crunch.
- Protect your fee from day-one, easily avoidable change orders.
Architects
Elevate QA/QC standards without adding billable hours.
- Callout references to moved/deleted details
- Sheet indexes out of sync.
- Door schedule mismatches.
VDC/BIM Managers
you're drowning in coordination.
- Broken callout references nobody flagged.
- Sheet index drift that creates scope gaps.
- Door schedule mismatches that become procurement emergencies.
GC Ops teams
Protect project margins by catching coordination gaps.
- Prevent field RFIs caused by dead-end callouts.
- Eliminate scope gaps hidden in misaligned sheet indexes.
- Stop wrong material orders due to plan-to-schedule mismatches.
The specific checks that protect your margin, your schedule, and your legal baseline.
Audit Check 01:
Sheet Index Alignment.
Your Contractual Baseline, Verified.
Without: 5 undetected sheets built from disputed bid arbitration.With: 5 undetected sheets flagged. Legal baseline clean.Audit Check 02:
Missing Callouts & Details.
Stop The Domino Effect.
Without: Sub Improvises. Inspection fails. Rework: $73K.With: Broken ref flagged pre-con. Architect corrects. Cost: $0.Audit Check 03:
Door Schedule-To-Plan Sync.
Prevent The Procurement Disaster.
Without: Wrong door ordered. 14-wk lead time. $5K/day LD.With: Mismatch flagged before PO. Order once. On-time.Audit Check 04:
Keynote-To-Legend Verification.
Every Note On Every Sheet, Accounted For.
Without: Missed note drives area demo. $40K+ in extra labor and haulage.With: Orphaned keynote flagged during audit. Added scope to the bid.
Audit Checks ->Sheet Index OKCallouts OKDoor Schedules OKKeynotes OKWindow Schedules - SoonP&ID - SoonFinish Schedules - SoonElectrical OK
Other tools offer a first-pass. markedup.ai provides a final audit.
Generic LLMs hallucinate, and basic construction AI tools only scan text. markedup.ai reads drawing geometry, symbols, and cross-sheet references — then returns Bluebeam-ready findings.
| Feature | Manual QA/QC | Generic AI (ChatGPT) | markedup.ai |
|---|---|---|---|
| AEC Context | High (Human) | Low (Hallucinates) | High (AEC-Trained) |
| PDF Processing | Hours/Days | Text Only (No Vector) | Fast · Vector-native |
| Data Privacy | Internal Only | Public Training Data | No training on your project files. |
| Output Type | Hand Redlines | Chat Text | Bluebeam-Ready PDF |
Customer drawing audits — integrity findings before bid.
See how GCs use markedup.ai to catch door-schedule and callout risks before bid — without a new drawing system.
Preventing Procurement Errors & Schedule Delays
Gordon Highlander — $100K window
MidHudson CM — $54K change order
The story behind MarkedUp.
As a construction engineer, I watched my wifes brother lose $100,000 on a single project because of errors nobody caught. I built MarkedUp so nobody, architect or GC, ever absorbs that loss again.
Christopher J Mouflard, Founder and CEO, MarkedUp
Frequently Asked Questions
markedup.ai is Grammarly for construction drawings — an invisible audit layer that catches drawing errors before they become rework, delays, and claims.
Headless means you never have to move drawings into a new system of record. markedup.ai audits inside the tools you already use and returns marked-up results there.
ConstructionProof is the drag-and-drop path: upload a PDF drawing set, get a marked-up PDF back. No integration work, no IT project, no new UI to learn.
Native folder-listening integrations include Trimble Connect, Trimble ProjectSight, Autodesk Forma, Google Drive, and SharePoint.
High-risk drawing rules including sheet index alignment, callouts and details, door schedules, keynotes, and MEP — across large multi-thousand-page sets.
By the silence principle: it stays quiet until it finds an issue, then alerts via email, Slack, Microsoft Teams, or in-app — only when there is something worth acting on.
Pre-construction, construction, and architecture firms roughly in the $100M–$1B annual range (also EPC and owner-side capital programs).
No. It is not a DMS and not a dashboard product. If value lived behind a login you have to remember to check, it would have failed the headless test.
Risk-free use guarantee | Rework Risk Reduction | Secure Payment | Processed project files purged on a published schedule (see Privacy — 14-day purge). | Encryption in transit & at rest
Risk-free use guarantee | Rework Risk Reduction | Secure Payment | Processed project files purged on a published schedule (see Privacy — 14-day purge). | Encryption in transit & at rest