AI drawing review for plumbing contractors

Helonic is an AI construction drawing analysis platform for plumbing contractors who review 2D PDF drawing sets.

Detect pipe routing conflicts, verify fixture rough-in dimensions, and coordinate riser diagrams automatically, all from your PDF drawing set.

What slows down plumbing contractors?

Plumbing contractors redo rough-in when waste, vent, and supply routing on the drawings cannot actually be built.

Pipe Routing Conflicts

Waste, vent, and supply lines clash with structural elements, ductwork, and other trades in wall cavities and ceiling spaces.

Fixture Rough-In Errors

Rough-in dimensions from architectural plans often conflict with manufacturer specifications and accessibility requirements.

Riser Coordination Gaps

Riser diagrams frequently do not match floor plan layouts, leading to pipe sizing errors and missing connections.

How does Helonic help?

Helonic reviews waste, vent, supply, and gas sheets against architecture and structure and flags slope, clash, and sizing errors before rough-in.

Waste and Vent Coordination

Verify that waste and vent piping routes clear structural beams, ductwork, and other obstructions while maintaining required slopes and code-compliant configurations.

Water Heater Sizing Verification

Cross-reference water heater capacity against fixture count, hot water demand calculations, and piping layout to ensure adequate supply for the building.

Fixture Count vs Pipe Sizing

Automatically calculate fixture unit loads and verify that pipe sizing on riser diagrams and floor plans supports the total demand at each branch and main.

Riser Diagram vs Plan Matching

Compare plumbing riser diagrams against floor plans to catch missing connections, mismatched pipe sizes, and inconsistent floor-to-floor routing.

Gas Piping Coordination

Review gas piping routes for clearance from electrical panels, air intakes, and operable windows while verifying sizing against connected BTU loads.

What issues does Helonic catch?

Helonic flags slope violations, fixture-unit mismatches, and routing clashes that fail inspection or force a reopen.

Piping & Fixtures

Pipe slope violations below minimum code requirements
Missing cleanout access at required locations
Fixture unit miscounts affecting pipe sizing
Inadequate venting causing drainage problems

Safety & Coordination

Cross-connection risks between potable and non-potable systems
Missing backflow prevention at required locations
Gas piping clearance violations near ignition sources
Storm drain connections missing or undersized

What return do plumbing contractors see with Helonic?

Plumbing teams rough in once because slope, sizing, and clash issues are resolved on paper first.

SAVINGS

$20K–$120K

average per project from early conflict detection

ISSUES CAUGHT

30+

plumbing issues per drawing set

FASTER REVIEW

65%

vs. manual riser coordination

Frequently Asked Questions

What plumbing coordination does Helonic verify?

It checks riser stacking across floors, pipe slope compliance, and fixture coordination, flagging risers that do not align, slopes that violate the IPC, and fixture conflicts with structure or other trades, each with the sheet reference.

Does it check slope and venting against code?

Yes. It flags where drawn pipe slopes and venting do not meet IPC requirements before rough-in.

Can it catch riser stacking problems across floors?

Yes. It flags where risers fail to stack correctly floor to floor or conflict with structure, a common source of costly field relocations.

Do I need a model to use it?

No. It works on the 2D plumbing and coordinated PDFs you already receive.

Manas Gandhi

Co-founder & CTO, Helonic

Manas is the co-founder and CTO of Helonic, where he leads engineering and AI research for construction drawing analysis. He works directly with structural, MEP, civil, and fire protection engineers to translate the way they review drawings into AI systems that flag the issues that actually matter in the field. Before Helonic, he built machine learning pipelines for technical document understanding and has spent the last several years interviewing licensed design engineers and discipline leads to ground product decisions in real practice rather than industry assumptions.

Areas of focus

AI for technical document understanding
Cross-discipline coordination workflows
Code compliance automation (IBC, NEC, NFPA, IPC, IMC, ASCE)
Structural and MEP drawing review systems

How this page was researched: Coordination checks reference IPC slope, venting, and riser requirements and the plumbing-structural interfaces verified before rough-in. Examples are drawn from Helonic's review of plumbing sets against structure and other trades.

Last reviewed by Manas Gandhi · August 10, 2026

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Eliminate plumbing rework before it starts

See how Helonic catches pipe routing conflicts, slope violations, and sizing errors that manual review often misses.