Architectural visualization of a brick and stone civic campus in a quiet landscape

A free drawing review for your firm

Find the gaps.
Before the field does.

AI QA/QC for architects and engineers.
See what Subtillis finds in your drawings.

Get a free drawing review

Start with a conversation. Share drawings after we agree on scope.

Same connection.
Different pipe sizes.
Explore a finding
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Drawing review across architecture, civil, mechanical, electrical, plumbing, and landscape.

Your reputation is built into every set.
Put another layer of review behind it.

Your drawingsA real project.

Review the work your firm delivers.

Your next stepA free review.

See the findings with our team.

Drawing coordination

Built to see
the whole set.

Across disciplines

Follow the design where scopes meet.

Beyond the callout

Compare plans, details, and schedules.

Grounded in the set

See the source behind each finding.

Across every discipline

The connection on the civil plan is the same connection on the plumbing plan. Your review should treat it that way.

Explore QA/QC
Architectural visualization of a stone and brick campus courtyard
Subtillis / QA/QC01
Cross-discipline coordination

Same connection. Different sizes.

C-301 · Civil utility plan6-inch service connection
P-101 · Plumbing plan4-inch service connection

Confirm the connection size across both disciplines.

Reconstructed examples. No customer drawings or identities.

Specifications + code

Read the drawings.
And the requirements.

Specifications

Check materials and performance requirements.

Technical relationships

Evaluate what the schedules imply.

Project codes

Review potential issues in context.

Review in context

The graphic and written documents tell one story. Subtillis checks how they fit together, including the requirements that govern the project.

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Architectural visualization of a precise building model and drawing sheets
Subtillis / QA/QC01
Specification coordination

The assembly calls for a closer look.

A-501 · Wall sectionInsulation thickness · 2 inches
07 21 00 · Thermal insulationSpecified thickness · 3 inches

Reconcile the detail and specification with the design intent.

Reconstructed examples. No customer drawings or identities.

Findings that help you act

Find more.
Know where to start.

A useful order of work

Separate issues, suggestions, and corrections.

Supporting evidence

Investigate the finding in context.

Your team in control

Decide what needs to change.

From a flag to a decision

A thorough review should bring clarity. Follow each finding to its source, understand the concern, and put your team’s judgment to work.

Explore QA/QC
Architectural visualization of a brick and limestone library interior
Subtillis / QA/QC01
Review findings

A clear place to start.

IssueConflicting pipe sizes
Suggestion / CorrectionClarify a note / Correct a spelling error

Illustrative categories. Your team sets the priorities.

Reconstructed examples. No customer drawings or identities.

The kind of issue we catch

A small discrepancy.
A conversation you’d rather have now.

C-301 / P-101Coordination review
CIVIL PLAN6″
PLUMBING PLAN4″

One service connection. Two specified sizes.

Reconstructed example
Civil + plumbing

Catch the disagreement
before the connection is built.

A civil utility plan and a plumbing plan describe the same connection differently. Subtillis brings the discrepancy and its sources together so the designers can reconcile it.

This category comes from customer reviews. The sheet references and dimensions shown here are illustrative.

Explore more findings

How your free review works

Your firm. Your drawings.
Let’s see what we find.

For principals, partners, and firm leaders evaluating QA/QC. We agree on the review scope with you before you share documents.

  1. 01

    Start with a conversation.

    Tell us about your firm, your review process, and a project you’d like us to look at. We’ll agree on the documents and scope for the free review.

  2. 02

    Share the drawings.

    After that conversation, provide the agreed drawings, specifications, and project context. We’ll run the review and prepare the findings.

  3. 03

    See what surfaced.

    In a follow-up meeting, we’ll walk through the findings, show the source context, and discuss what matters to your team.

Get a free drawing review

No drawings needed to book the initial conversation.

Before we meet

A few things
worth knowing.

What does Subtillis review?

Subtillis reviews project drawing sheets for coordination issues, inconsistencies with specifications, and potential code issues. It brings the finding and its supporting context together so your team can evaluate the issue and decide what needs to change.

Does this replace our QA/QC process?

Subtillis adds another review layer to your process. Your architects and engineers still evaluate the findings, resolve the design, and make the final decisions. AI can miss issues or flag something that is intentional. A completed review is not a certification that a set is complete or code compliant.

How do you handle code review?

Code review depends on the project location, applicable editions, amendments, and the documents available for review. These need to be established for the project. Subtillis identifies potential issues for your team to evaluate against the governing requirements and the project context.

Do we have to change how we produce drawings?

Start with the drawing PDFs and specifications your team already produces. Subtillis reviews the documentation outside your authoring environment, so you can evaluate it alongside your existing production and review process.

How does the free drawing review work?

Start with an introductory conversation about your firm and a project you want reviewed. We agree on the scope, then you share the drawings and supporting documents. We review them and meet with you again to walk through the findings and their sources. The initial appointment is the discovery conversation; the findings meeting happens after the review.

What is included in the free review?

We agree on the documents and review scope during the initial conversation. The free review includes our review of that agreed scope and a follow-up meeting to discuss the findings. No project files are needed to request the conversation.

Can we discuss security before sharing project files?

Yes. Use the review request to tell us about your firm's security, confidentiality, and procurement requirements. We can discuss data handling and access before you decide which project documents to provide. No project upload is needed to request a conversation.

A free review. Your drawings.

See what’s in your set.
Before it’s in the field.

Start with a conversation about your firm and the drawings you want reviewed. We’ll agree on the scope, review the documents, and walk you through the findings in a follow-up meeting.

Get a free drawing review Initial conversation → Drawing review → Findings meeting