The complete MEP project management platform — estimates, submittals, invoices, RFIs, change orders, AI takeoff, field service, and more. Built by contractors, for contractors.
Stop juggling spreadsheets and disconnected tools. MEPSub connects your entire workflow from first estimate to project closeout.
Build detailed estimates with sections, assemblies, and 13,177 real cost book prices. AI generates your scope of work in seconds. Professional PDF with one click.
All data flows automatically — no re-entry, no copy-paste, no lost context between steps.
Not generic AI. MEP intelligence — trained on CSI specs, construction workflows, and industry standards. Built into every module.
No per-user fees. No setup costs. Cancel anytime. All plans include PDF generation, GC Review Portal, and full cost book access.
From estimating to closeout — here's what commercial MEP subcontractors say after switching.
We used to spend 3–4 hours building submittal registers from spec books. MEPSub reads the PDF, pulls every product requirement, and generates the register automatically. That alone paid for the subscription in the first week.
I was paying $499/month for Procore as a sub and using maybe 20% of it. MEPSub does everything I actually need — estimates, submittals, invoices, RFIs — and it starts free. The cost book alone with 13,000 items is something Procore never had.
Closeout used to take us two full weeks hunting manufacturer PDFs. The O&M builder finds them all automatically. We handed over a 400-page O&M package for a hospital project and the GC said it was the most organized they'd ever received.
Every screenshot below is from the live platform — taken directly from app.mepsub.net by real MEP contractors.
Move two sliders. See how many hours and dollars MEPSub saves your company per year.
Estimates, submittals, invoices, RFIs, change orders, proposals, field service, AI chat — the complete MEP workflow powered by AI.
Every tool a commercial MEP subcontractor needs. Estimating, project management, field service, financial, and AI — no add-ons, no per-seat tricks.
Procore is built for GCs. ServiceTitan added commercial tools in late 2025 but serves all trades. Trimble splits you across 7 separate tools. MEPSub is the only platform built from the ground up for commercial MEP subcontractors — with a 13,177-item CSI cost book and AI takeoff built in.
| Feature | MEPSub | Procore | ServiceTitan | Trimble | BuildOps |
|---|---|---|---|---|---|
| MEP-specific database (CSI Div 21–28) | ✓ 145 spec sections | ✗ | ✗ | ~ Partial | ✗ |
| Built-in cost book (13K+ items) | ✓ 13,177 items | ✗ | ~ Pricebook only | ~ Accubid only | ~ Pricebook only |
| AI spec book parsing (OCR) | ✓ | ✗ | ✗ | ✗ | ✗ |
| AI chat assistant (MEP-aware) | ✓ Built-in MEP AI | ✗ | ✗ | ✗ | ✗ |
| AI takeoff from PDF drawings | ✓ | ✗ | ✗ | ~ Addon only | ✗ |
| Estimate → Project → Invoice (one flow) | ✓ | ~ Partial | ~ Service only | ✗ Separate tools | ~ Service only |
| Submittals & GC review portal | ✓ No account needed | ~ Requires login | ~ Added Nov 2025 | ✗ | ~ Mobile only |
| RFIs & change orders | ✓ | ✓ | ~ Added 2025 | ~ Partial | ~ Mobile only |
| SOV & AIA progress billing | ✓ | ✓ | ~ Added 2025 | ✗ | ✗ |
| O&M manual builder (AI) | ✓ | ✗ | ✗ | ✗ | ✗ |
| Certified payroll (WH-347) | ✓ | ~ Addon | ✗ | ✗ | ✗ |
| Field service dispatch & PM schedules | ✓ | ~ Basic | ✓ | ✗ | ✓ |
| Lien waivers | ✓ | ~ Addon | ✗ | ✗ | ✗ |
| Mobile PWA (no app install) | ✓ | App required | App required | App required | App required |
| Number of separate tools needed | ✓ 1 platform | 1 (GC-focused) | 1 (residential) | 7 separate tools | 1 (field only) |
| Starting price | Free → $49/mo | $499+/mo | ~$250/tech/mo | $300+/mo per tool | ~$200/mo |
Feature-by-feature analysis — why MEP contractors switch from each platform.
Everything you need to know about MEPSub before you start.
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