The Horizon Report describes all the major systems of a home in terms, with lots of illustrations. It explains how house components work, and what can go wrong with them. The home is broken down into nine systems: Roofing, Exterior, Structure, Electrical, Heating, Cooling, Insulation, Plumbing and Interior. HMP provides written reports at the end of every home inspection. Horizon includes report forms for each section of the home that are filled out on-site as part of the home inspection process.