Watsco, Inc.
Watsco, Inc., together with its subsidiaries, engages in the distribution of air conditioning, heating, and refrigeration equipment, and related parts and supplies in the United States, Canada, Latin America, and the Caribbean. It distributes equipment, including residential ducted and ductless air conditioners, such as gas, electric, and oil furnaces; commercial air conditioning and heating equipment systems; and other specialized equipment. The company also offers parts comprising replacement compressors, evaporator coils, motors, and other component parts; and supplies, such as thermostats, insulation materials, refrigerants, ductworks, grills, registers, sheet metals, tools, copper tubing, concrete pads, tapes, adhesives, and other ancillary supplies, as well as plumbing and bathroom remodeling supplies. It serves contractors and dealers that service the replacement and new construction markets for residential and light commercial central air conditioning, heating, and refrigeration systems. Watsco, Inc. was incorporated in 1956 and is headquartered in Miami, Florida.
What does it do?
Watsco is essentially the middleman between air conditioner manufacturers like Carrier and Trane and the contractors who actually install those units in your home or office. Think of them as a giant warehouse network — they stock AC units, furnaces, replacement parts, and refrigerants, then sell them to HVAC technicians across the US, Canada, Latin America, and the Caribbean. When your air conditioner breaks in August and a technician shows up the next day with the right part, there's a good chance Watsco had that part sitting in one of their 690+ locations. They don't manufacture anything — they just make sure the right equipment gets to the right place fast.
Climate change is making summers hotter and longer, which means demand for air conditioning is structurally growing — this isn't a fad, it's a demographic and environmental shift that plays directly into Watsco's core business. On top of that, new US government regulations are forcing a transition to higher-efficiency, next-generation refrigerants, which means millions of existing AC units will need to be replaced over the next decade, creating a huge replacement cycle that Watsco is perfectly positioned to supply. With a $17 billion market cap and deep distribution roots, Watsco is seen as a boring-but-reliable way to play the long-term growth of the HVAC industry.
How does it make money?
Watsco makes money by buying AC equipment and parts in bulk from manufacturers, then reselling them at a markup to roughly 130,000 contractor customers across its markets — this is called distribution margin, and it's the engine of the business. Revenue hit $7.2 billion last year, though that was down from $7.6 billion the prior year, partly because the industry went through a destocking phase where contractors worked through existing inventory instead of buying new product. They also earn money from value-added services like their digital technology platform, which lets contractors order parts, manage invoices, and track equipment — this stickiness helps keep customers coming back rather than shopping around.
Why do investors care?
The big growth story for Watsco is the mandatory transition from old refrigerants (R-22 and R-410A) to new low-global-warming-potential refrigerants under updated US EPA regulations that took effect in 2025 — this effectively forces a replacement wave across tens of millions of installed AC units, because the new systems are not backward compatible. Investors also like that Watsco has consistently raised its dividend for over two decades, making it attractive as both a growth and income investment. What has to go right: housing activity needs to recover, contractors need to start ordering ahead of the replacement cycle, and Watsco's tech platform needs to deepen its hold on contractor relationships to protect margins from competition.
Deep Dive
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