Start from a template priced from your own Price Book, add items the way estimators work, give the customer options and the level of detail you want, and send it in your style — with change orders that follow the same lines.
Pick one of 42 MEPSub templates by trade, or one of your own, and every line is priced from your Price Book. Sections open and close, a quick-add row suggests what you used before, and lines left at zero stay off the proposal until you fill them.

The item picker slides in from the side: search your Price Book and price lists, your estimate items, kits, and what you priced before — pick many items with a quantity each and add them all at once.

Offer a section as an option and the customer picks one when signing in the portal. Choose how much they see — one lump sum, sections, or every line with or without unit prices — and edit the scope, inclusions, exclusions and terms right on the page.
Price a change with lines — quantity, unit, cost and markup, deductions as negative lines — or as one lump sum. The customer sees the view you pick; your cost and markup never leave the office, and the invoice bills the change line by line.
Pick one of three looks for your invoices, estimates, POs, change orders, RFIs, submittals and reports — per company, per document or per customer. Send any of them with Cc and Bcc, and replies come back to whoever sent it.
Draft estimates, invoices, POs and RFQs save as you type. Line tables take the keys estimators expect, and if someone else changed the same record, nothing is overwritten — you choose.
Every Send dialog can draft the subject and message from the document with AI, then make it shorter, friendlier or more formal. To, Cc and Bcc work like your email program, with the customer’s contacts, the project directory and your team a tick away.
Pantera Tools invitations that land in a mailbox connected to MEPSub Mail become bids automatically — job, address, due date and time, GC, contact and MEP scope. Reminders and addenda file under the same bid, and a moved due date tells the estimator.
Price ductwork from your own shop rates — by weight, or by length and piece — with one line per duct size. Set a $/lb for each metal, and the gauge follows the project’s fab shop standard. CostBook lines are priced for the estimate’s ZIP.
Build your own plan from the Core plus module packs — priced per user, month to month.
Estimating, the MEPSub Price Book, templates, proposals and invoices — in every plan, including Free.
Change orders, submittals, subcontracts and Scope buyout.
AI Takeoff, AI estimate drafts and documents.
Start free with up to 3 users, no credit card — add packs when you need them.