Functional DemoSaaS

Exterior Calculator

Profit calculator and estimate builder for roofing, siding, and gutter contractors.

PriceCraft estimating landing page headlined Calculate Exterior Project Costs with Precision, with trial buttons and feature cards for roofing, siding, and gutter pricing — PriceCraft landing page

What it solves

Exterior contractors often quote jobs without a clear view of their true profit after materials, labor, and overhead. Pricing decisions get made on gut feel, and margins erode when expenses like sales commission and office costs are not accounted for per job. This app opens directly into a calculator so a contractor can see profit dollars, margin, and break-even instantly.

Built for Exterior service contractors doing roofing, siding, and gutters.

Overview

Exterior Calculator computes job profit for roofing, siding, gutters, or a multi-service combination. Contractors configure their own material catalogs, labor rates, and percentage-based expense lines per service and save them as reusable templates, then enter quantities to see revenue, material and labor cost, expense breakdown, gross and net margin, and break-even price. It has grown beyond a calculator into an estimate builder with saved estimate templates, photos, and public shareable estimate pages. An insurance scope upload uses OpenAI to extract line items from PDF or image scope documents, and the app includes jobs, Stripe subscription billing, an embeddable widget, and CRM sync.

What this demonstrates

Implements a configurable financial model that turns per-service material, labor, and percentage-expense inputs into gross profit, net margin, and break-even in real time. Builds a document-extraction pipeline that reads insurance scope PDFs, falling back to OpenAI vision when a document is scanned or image-based. Adds Stripe subscription billing, public tokenized estimate sharing, an embeddable widget, and org-scoped multi-tenancy.

What makes it different

It opens straight into the calculator, no dashboards in the way, and shows profit, margin, and break-even the instant you enter a job.

Calculator firstThe app lands on the calculator with a small settings area, not a dashboard.
Contractor-configured variablesMaterials, labor rates, and expense lines are defined per service by the company.
Multi-service estimatesSelect two or more services and get a combined profit summary.
Reusable templatesSave variable sets like Roofing Retail or Siding Premium and load them per job.
True profit visibilityPercentage expense lines are applied against revenue to show net margin and break-even.

Core capabilities · 15

Profit calculator
Roofing, siding, gutters, or multi-service with instant profit output.
Material catalog
Per-service materials with unit cost, unit type, and sell price.
Labor rates
Per-service labor priced per square, square foot, linear foot, or item.
Expense lines
Percentage-of-revenue overhead lines like sales commission and office cost.
Service templates
Saveable variable sets per service type with default waste percentage.
Estimate builder
Assemble full customer estimates from calculator inputs.
Estimate templates
Reusable estimate layouts with an editor.
Public estimate
Tokenized shareable estimate page for the customer.
Estimate photos
Attach and caption photos on an estimate.
Insurance scope extractionScope Extraction
Upload a scope PDF or image and extract line items via OpenAI.
Jobs
Track jobs alongside their estimates.
Subscription billing
Stripe checkout, price IDs, and webhook-driven subscription state.
Embeddable widget
A widget build for embedding the calculator elsewhere.
CRM sync
Push and pull job data with CRM Empire via API key.
Org settings
Organization-scoped configuration and approval ratings.

How it works

Pick one or more services
Enter quantities and waste percentage
Select materials from the catalog
Apply labor rates and expense lines
Read revenue, costs, margins, and break-even
Save as a template or build a full estimate
Share a public estimate or sync the job to the CRM

How the profit number works

Net profit and margin

Total revenue
Entered directly or computed from per-unit sell prices.
Material cost
Unit cost times quantity for selected materials.
Labor cost
Per-unit labor rate applied to job quantities.
Expense lines
Percentage-of-revenue overhead deductions.
Gross profit and margin
Revenue less material and labor cost.
Net profit and margin
Gross profit less percentage expense lines.
Break-even revenue
Minimum price at which the job does not lose money.

Key screens

CalculatorService picker, inputs, and live profit output.
Estimate BuilderAssemble a customer estimate.
Estimate TemplatesManage and edit reusable estimate templates.
JobsList of tracked jobs.
Job DetailJob and estimate details.
Public EstimateCustomer-facing shareable estimate.
PricingSubscription plan selection.
WidgetEmbeddable calculator surface.
SettingsMaterials, labor, expenses, and org configuration.

Data model

Organization
OrgSettings
User
ServiceTemplate
MaterialItem
LaborRate
ExpenseLine
Estimate
EstimateTemplate
EstimatePhoto
ScopeExtraction
Job
Subscription
SubscriptionEvent
ApprovalRating

Screens · 7

PriceCraft dashboard for Demo Roofing Co with tiles for total jobs, completed, $67,000 revenue, and 34.9% avg margin, plus recent jobs and jobs-by-status counts — PriceCraft jobs dashboard

PriceCraft estimate calculator with a roofing template, total job price field, and roofing inputs for quantity, waste, material, and labor items; results panel empty — New estimate calculator, blank inputs

PriceCraft calculator filled with a $30,000 roofing job showing a Profit Summary with $22,185 gross profit, expenses, $16,785 net profit, break-even, and price-drop scenarios — Calculator with profit summary

PriceCraft Jobs list with status counts (1 draft, 0 quoted, 0 in progress, 2 completed) and job rows showing price and margin, one with a Mark Quoted button — Jobs list with margins

PriceCraft job detail Est. 1 Ron marked Completed, showing a Financial Summary ($30,000 revenue, $16,700 gross profit, $11,300 net profit) and calculation inputs for siding, gutters, and roofing — Completed job financial detail

PriceCraft Settings with price-drop scenario percentages, an App Theme picker showing seven color themes, and estimate template cards for Full Exterior, Gutters, and Siding — Settings: themes and templates

PriceCraft settings Materials and Labor Rates tables listing roofing, siding, and gutter items with per-unit cost and sell prices and edit/delete actions — Materials and labor rate tables

How it is built

A React and Vite front end calls an Express API backed by PostgreSQL through Prisma. Uploaded scope documents are parsed for text or, when scanned, sent to OpenAI vision for extraction, with images handled by sharp. Stripe manages subscriptions and an embeddable widget plus CRM sync connect it to the wider app cluster.

APIs and services

OpenAI
Stripe

Classification

Industries: Home Services
Capabilities: Financial Modeling Document Generation Document OCR and Extraction AI Automation Subscription Billing Authentication Dashboards
Technologies: React Vite Tailwind CSS Node.js Express Prisma PostgreSQL Zod

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