Watsco is the largest heating, ventilation, air conditioning, and refrigeration products distributor in North America. The company primarily operates in the United States (90% of revenue), with significant exposure in the Sun Belt states. Watsco also has operations in Canada (5% of sales) and Latin America (5% of sales). The company's customer base consists of more than 125,000 contractors that serve the replacement and new construction HVACR markets for residential and light commercial applications.