An HVAC company is a business that focuses on heating, ventilation, and air conditioning systems. They install, repair, and maintain these systems in various buildings like homes, offices, and factories. Their services include installing heating and cooling units, ductwork, thermostats, and air quality control systems. HVAC companies also offer maintenance plans to keep these systems running smoothly and provide inspections to detect and fix any issues. Visit everestairaz.com to learn more.