RoofPilot — web application for roofing company with instant estimate

A full-featured web application is required for a company that installs roofs in the private and commercial sectors. The main element is an instant estimate calculator: a visitor enters the roof area in square meters, selects the material (asphalt shingles, standing seam metal, TPO membrane, ceramic tiles), slope and number of floors, and the calculator instantly provides an approximate price with lower and upper range boundaries. Calculation rules must be editable from the admin panel without code changes, because material prices change frequently. After the assessment, the visitor books a measurer visit through a calendar: it displays free team slots, sends confirmation by email and SMS, and prevents double-booking of the same time slot. Each scheduled project has a photo chronicle: the team uploads photos before, during, and after work directly from their phone, tagged with date and stage, and the customer tracks progress via a link. A material and warranty tracker stores shingle brand, batch, installation date, factory warranty period, and workmanship warranty period, and alerts the office in advance of expiration. Payment plan options are displayed as cards with monthly payments and lead to an application form for the partner. Each calculation, inspection request, and payment plan click go into a CRM board with source and status. The result: adaptive frontend, admin panel, REST API, MySQL schema, test data, deployment instructions, and documentation.