CSL vs WSO Comparison

Carlisle Companies Inc is a holding company that manufactures and sells single-ply roofing products and warranted systems and accessories for the commercial building industry. It operates through two segments: Carlisle Construction Materials and Carlisle Weatherproofing Technologies. The majority of revenue comes from Carlisle Construction Materials, and more than half of total revenue is earned in the United States. Carlisle Construction Materials produces premium single-ply roofing products and warranted roof systems, including EPDM, TPO, PVC membrane, and polyiso insulation. Carlisle Weatherproofing Technologies produces building envelope solutions, including waterproofing, moisture protection products, air/vapor barriers, and spray polyurethane foam systems.

Watsco is the largest HVAC and refrigeration products distributor in North America with approximately 13% market share. The company primarily operates in the United States (90% of revenue) with significant exposure in the Sunbelt states. Watsco also has operations in Canada, Latin America, and the Caribbean. The company's customer base comprises more than 120,000 dealers and contractors serving the replacement and new-construction HVAC/R markets for residential and light-commercial applications. As much as 20% of residential HVAC units are distributed through Watsco in any given year. Revenue is approximately 75%-80% residential HVAC and 20%-25% commercial, with relatively small exposure to more complex "applied" solutions.