Mechanical & plumbing
Long lead times. Big retainage. High lien-collateral value.
Mechanical and plumbing subs face the worst working-capital squeeze in construction — equipment ordered in month one, paid for in month nine. Billitron lets you bill for stored materials and protect your lien rights from day one.
Stored materials
- Off-site stored materials with bonding documentation
- On-site stored materials with photo evidence
- Bill against materials before they're installed
- Track equipment release / approval / installation timeline
Pay-apps
- AIA G702/G703 with Division 22 (Plumbing) and Division 23 (HVAC) templates
- Retainage tracked separately on materials vs. labor where contract permits
- Multi-section pay-apps (rough-in, top-out, finish)
- Auto-routed approval through PE → PM → owner
Specialty work
- Medical gas certifications and inspections
- Hospital plumbing compliance (NSF, FDA)
- Process piping welder cert tracking
- Gas line testing and acceptance documentation
Lien protection
- Preliminary notices filed on day one — before equipment ships
- Stored materials covered by lien rights where state law permits
- Notice of intent escalation when GC stalls
- Mechanic's lien filing through partner counsel
Get started
Stop chasing payments. Start collecting them.
Free under $50k annual invoiced. No credit card. Set up your first quote and pay-app in under an hour.