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.
Riser and vent conflicts come from stacking analysis, which follows risers floor to floor, and clash detection against structure and other trades.
- 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.
| Figure | What it measures |
|---|---|
| $20K–$120K | Average savings per project from early conflict detection |
| 30+ | Plumbing issues caught per drawing set |
| 65% | Faster review vs. manual riser coordination |
Frequently Asked Questions
What plumbing coordination does Helonic verify?
Does it check slope and venting against code?
Can it catch riser stacking problems across floors?
Do I need a model to use it?
Manas Gandhi
Co-founder & CTO, HelonicManas 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.
- 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