Servicevan

The hero is a live 3D cut-away of a house. Chips switch between Heating, Cooling, Plumbing and Electrical, and each lights its own ducts, pipes or wiring inside the walls. Emergency mode rings a leak at the water heater while a company van pulls up. Further down, an instant-price work order re-prices line by line as visitors pick a job, home size and tier, applies rebates, and shows a monthly payment.