Johnson Controls understands buildings better than anyone else. Our experience spans more than 115 years and tens of thousands of buildings. The owners and managers of commercial, institutional and government buildings worldwide turn to Johnson Controls to maximize comfort, productivity, safety and energy efficiency. We engineer, manufacture and install control systems that automate a building's heating, ventilating and air conditioning, as well as its lighting and fire safety equipment. Our Metasys® Facility Management System automates a building's mechanical systems for optimal comfort levels while using the least amount of energy. Metasys monitors fire sensors and building access, controls the lights, tracks equipment maintenance and helps building managers make better decisions.