Built by an MEP contractor

Software built for the way your trade actually runs

I ran a mechanical shop and tried every app out there. None of them fit an MEP or HVAC business out of the box — so I built the one I wished I had. Submittals, estimating, dispatch, invoicing and a customer portal, all in one place.

Free plan up to 5 users · Set up in 2 minutes · Cancel anytime

If you've ever stitched together four apps and a whiteboard just to get through a job — I built this for you.

I'm a mechanical/MEP contractor, not a software company. For years I bent my workflow to fit tools that were never made for our trade: one app for scheduling, another for invoicing, a spreadsheet for submittals, texts for the field. Nothing talked to each other.

MEPSub is the system I actually wanted — one place that follows a job from the first submittal to the last service call and final invoice. It's shaped around how MEP and HVAC shops really work, because it was built by one.

D
DennyFounder · MEP contractor
The #1 thing people click

Watch the AI submittal builder work

Drop in a spec section and your cut sheets — MEPSub assembles the submittal package for you. What used to take an afternoon takes minutes.

A quick preview of the real flow — create a free account and run one on your own spec.

Built by a working MEP/HVAC contractor
Two-way QuickBooks sync
Free up to 5 users — no credit card
Month-to-month · cancel anytime
Your data stays yours

Everything a shop runs on, in one place

No more copying numbers between apps. The whole job lives in MEPSub.

Submittals & takeoffs

Build, track and approve submittals and run takeoffs without leaving the job.

Estimating & proposals

Price the work, send a clean proposal, and turn a won estimate into a live job.

Dispatch & scheduling

A schedule board for the office and a "My Day" route for every tech in the field.

Invoicing & payments

Invoice from the field, take card payments online, and see what's paid at a glance.

Customer portal

Clients check status, approve work and pay — fewer "where are we?" phone calls.

Service tickets & SMS

Take service calls, text customers appointment updates, and close the loop fast.

Inventory, tools & purchasing

Stock in the shop and on the truck, who's holding which tool, and POs out to your suppliers.

Job paperwork

RFIs, daily logs, punchlists and permits filed against the job instead of someone's inbox.

Safety & crew records

Toolbox talks, JHAs and incident reports logged, with certs and time off on the same roster.

One system instead of five subscriptions

Stop paying for — and re-typing into — a stack of tools that were never built to talk to each other.

  • The office and the field see the same live job
  • Nothing falls through the cracks between apps
  • One login, one bill, one place to look
Scheduling app
Separate invoicing tool
Spreadsheet for submittals
Texts & sticky notes for the field
↓ all replaced by ↓
MEPSub — one platform

See if it fits how you work

Create a free account and bring your first job onboard today — or let me walk you through it, one contractor to another.

Free plan up to 5 users · No credit card · Set up in 2 minutes