ScopeToSign is estimating and proposal software for plumbing and HVAC service contractors. Describe a job by photo, voice, or a quick note; it prices from your own price book; you send a Good, Better, Best proposal your customer signs on their phone — and collects a deposit. Estimate to signature, one flow.
Snap a photo, hold to talk, or type a line. No blueprints needed — quote from photos, voice, or a quick description. The AI reads what’s there, matches it to your own tasks, and drafts the estimate; you confirm before a single number is priced. It never sets a price.
Every line prices live from your own price book — tanks, add-ons, permit, haul-away — with Good/Better/Best totals along the bottom. Change a size or a toggle and the totals re-price instantly, and the review engine flags the code add-ons a cheap quote forgets before you send.
Your customer sees three clear options with the delta spelled out, scope of work, and what’s not included — on any phone. Each option shows exactly what it adds over the one below it, so more customers pick up rather than down, and the average ticket climbs on its own.
They sign on their phone and you have an evidence-grade acceptance record, a PDF, and (when enabled) a deposit collected on your own Stripe account. The signed estimate locks; anything that changes afterward becomes a numbered change order, so the record always adds up.
Price plumbing service jobs from your own price book — flat-rate and parametric, in minutes.
28 tasks across 6 categories load in minute one — Water heaters, Fixtures, Drains & sewer, Water service & repipe — each with its own inputs, formulas, and commonly-forgotten catches. Edit anything; it becomes your book.
See how it prices plumbing jobs →Price HVAC replacements and service — tonnage and zone parametric, Good/Better/Best ready.
12 tasks across 5 categories load in minute one — Cooling & AC, Heating & furnaces, Heat pumps & mini-splits, Ductwork & indoor air — each with its own inputs, formulas, and commonly-forgotten catches. Edit anything; it becomes your book.
See how it prices hvac jobs →
Quote from the truck on your phone, finish on a laptop at the shop. Your work saves as you go and survives a dead battery.
Pick your trade and a real pack loads — dozens of tasks with formulas and add-ons, ready to price. Edit anything; it’s your book.
Quote from photos, voice, or a quick description. If you bid commercial plan-and-spec work, a takeoff tool fits you better — this is built for service work.
ScopeToSign is built by Ashesh Dhakal, a software founder — not a licensed tradesperson, and this page won’t pretend otherwise. What makes the numbers trustworthy isn’t a name on a byline; it’s the engine. Every price is computed by a deterministic resolver in integer cents — never guessed by an AI — from pack defaults researched out of published trade data and labeled, on every table, as researched defaults.
And none of it is fixed in stone. The moment you install a pack it becomes your price book: every labor rate, markup, and material price is yours to edit, so the number that goes out the door is your price, not ours. The defaults are a fast, honest starting point — not a ceiling, and never a quote in disguise.
Written by Ashesh Dhakal · The numbers are real resolver output; every price is yours to adjust in your own price book.
Start free — build unlimited estimates and send your first proposals today. No card, no blueprints, no setup call.