A price book of materials, labour and sub-contracts; work types made of task recipes; a quote builder that runs on a phone from the roof. Every line carries its cost per type and its margin, the bill of materials writes itself, and an accepted quote becomes the project — with purchase orders pulled from the BOM per supplier and progress invoices billed by percentage. Built for a Quebec roofing contractor; tailored for yours.
The estimator does not type prices. It picks tasks, and the tasks know what they cost — by material, by hour, by sub-contract — because someone maintained one price book instead of a hundred spreadsheets.
Products with a current cost per unit and a preferred supplier price; cost types you define — materials, labour, sub-contracts, equipment — each flagged whether it feeds purchase orders. Bulk-adjust a supplier's prices by a percentage in one action.
One shared task library. A task is a recipe: so many of this product, so many hours of that labour, a fixed sub-contract amount. Recipe costs read the price book live, so a supplier increase shows up in every task the next morning.
A work type — re-roofing, repair, new build — is a list of task groups in the order the crew does them, with the tasks that nearly always apply already checked. Clone one to start the next; a quick-quote type hides the cost columns for the small jobs.
When a line is added to a quote it snapshots the book: cost per type, per unit, that day. The quote you sent in March still reads what it cost in March. A draft can be repriced from the current book on demand — a sent one never moves.
An estimator with a phone and twenty minutes on site should leave with a quote the office can trust. The builder makes that the normal case.
The quantities estimated on the roof are the quantities ordered from the supplier and the contract value billed in thirds. Each stage is created from the one before it, never copied by hand.
Draft, sent, accepted, rejected or expired. Sending freezes the lines; a PDF in the customer's language, payment terms, material and labour warranties, a rejection reason when it is lost — so the pipeline report says why.
Accepting a quote creates its project with the contract value and the estimated cost copied over. Dates, work address, site pictures, and rollups that stay current: billed, billed %, paid, purchase orders.
One click creates a draft purchase order per supplier from what the bill of materials still needs; an order can also pull its supplier's remaining BOM lines later. Prices default from the supplier price, then the book.
Deposit, progress, final and extra invoices billed as a percentage of the contract, with GST and QST, partial payments and balance. The project shows how much of the job is billed and paid at any time.
Regenerated from the quote lines — line quantity × recipe quantity per product — plus manual rows from the builder. The BOM is what purchase orders draw down.
Clients with several contacts, files and the history of their quotes, projects and invoices. Suppliers with their own price per product.
Quote, purchase order and invoice PDFs from templates you edit; a print template and contract text per work type.
iOS and Android app with Google sign-in and push notifications, generated from the same data model as the web application.
Estimators, office, admin: each role sees and edits only what it should; every change is stamped with who and when; login log.
Legacy ids on every catalogue table: the price book, work types and task recipes of an existing estimator were imported, not re-typed.
Every entity behind a documented API with role checks, and an MCP server so an AI assistant can look up a quote, a supplier or a project balance on your behalf.
Online card payment on invoices can be switched on whenever you want it.
Built on GoatCheese: the admin, API, mobile app and MCP server are generated from the data model; the estimating engine, the quote builder and the quote → project → order → invoice chain are the custom part.
apiConstruct is tailored per contractor: the cost types, task recipes and quote template are yours, and an existing estimator or spreadsheet can be imported. Book a demo and bring one real quote — we will rebuild it together.
Hosted and supported from Quebec. Scope and price in writing before anything starts.
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