Watsco: Compounding Growth in the HVAC Industry.

Watsco is the largest distributor of air conditioning, heating, and refrigeration equipment in North America, supplying the systems and components that keep homes and businesses comfortable year round. Through a vast network of distribution locations and long standing relationships with contractors and leading HVAC manufacturers, the company plays a critical role in connecting equipment producers with the professionals who install and service these systems. Supported by a large and growing installed base of HVAC units, a replacement driven market, and a fragmented industry that offers consolidation opportunities, Watsco has quietly built a highly profitable and resilient business. The question remains: Does this industry leader deserve a place in your portfolio?

This is not a financial advice. I am not a financial advisor and I only do these post in order to do my own analysis and elaborate about my decisions, especially for my copiers and followers. If you consider investing in any of the ideas I present, you should do your own research or contact a professional financial advisor, as all investing comes with a risk of losing money. You are also more than welcome to copy me. 

For full disclosure, I should mention that I do not own any shares in Watsco at the time of writing this analysis. If you would like to copy or view my portfolio, you can find instructions on how to do so here. If you want to purchase shares or fractional shares of Watsco, you can do so through eToro. eToro is a highly user-friendly platform that allows you to get started on investing with as little as $50.

The Business

Watsco, founded in 1956 and headquartered in Florida, is the largest distributor of air conditioning, heating, and refrigeration equipment and related parts and supplies (HVAC/R) in North America. The company operates nearly 700 locations across the United States, Canada, Mexico, Puerto Rico, and parts of Latin America and the Caribbean, serving more than 130.000 active contractors that install and service HVAC systems in residential and commercial buildings. Watsco operates as a pure distributor. It does not manufacture HVAC equipment but instead acts as the crucial intermediary between original equipment manufacturers and the contractors responsible for installing, repairing, and maintaining these systems. Its role in the value chain is essential because most HVAC contractors are small, independent businesses that lack the capital, storage capacity, and logistical infrastructure to carry large inventories. These contractors rely on Watsco as a just-in-time supply partner, providing immediate access to the equipment, replacement parts, and installation supplies needed to complete jobs efficiently. The company maintains deep inventories across its warehouse network and provides contractors with the ability to pick up equipment at nearby locations or receive rapid delivery. This logistical capability is particularly important in the replacement market, which represents the majority of HVAC demand. When an air conditioning or heating system fails, homeowners and businesses typically require immediate replacement or repair, leaving contractors little time to wait for parts or equipment. By ensuring high product availability across a dense branch network, Watsco enables contractors to respond quickly to customer needs and keep projects moving. In addition to selling HVAC equipment, which accounts for roughly two-thirds of revenue, Watsco distributes a wide range of higher-margin parts and supplies such as compressors, thermostats, insulation, refrigerants, tools, ductwork, and installation materials. These products are purchased frequently by contractors and contribute meaningfully to profitability due to their attractive margins and recurring demand. The company also sells commercial refrigeration equipment and supplies for industrial and commercial applications. The HVAC/R distribution industry is highly fragmented. In the United States alone, the market consists of more than 2.000 distributors serving a roughly $74 billion wholesale market. Despite this fragmentation, the equipment manufacturing side of the industry is relatively concentrated, with about eight major manufacturers accounting for approximately 90% of units shipped in the United States each year. This structure creates a natural role for large distributors such as Watsco that can efficiently connect manufacturers with the thousands of contractors installing and servicing systems in local markets. Watsco has grown substantially since pivoting toward HVAC distribution in 1989. Its expansion has been driven by a disciplined “buy and build” strategy that combines acquisitions of regional distributors with organic growth initiatives such as opening new locations, expanding product lines, and strengthening supplier partnerships. Over the decades, the company has completed more than 70 acquisitions, helping consolidate a fragmented industry while expanding its geographic footprint and customer base. A significant portion of Watsco’s revenue is generated through joint ventures with major HVAC manufacturer Carrier Global Corporation. These partnerships combine Carrier’s manufacturing capabilities with Watsco’s distribution expertise and network. The joint ventures grant Watsco access to premium brands and exclusive distribution rights in many territories, strengthening its position in key markets while reinforcing its relationship with one of the industry’s leading manufacturers. Watsco’s competitive moat stems from several structural advantages that are difficult for competitors to replicate, including its scale, dense distribution network, exclusive supplier relationships, long-standing contractor relationships, technology platforms, and ownership-driven culture. First, scale is a critical advantage. With nearly 700 locations and relationships with more than 1.400 suppliers, Watsco benefits from significant purchasing power and operational leverage. Its scale allows it to maintain broader product assortments, higher inventory availability, and more convenient branch locations than smaller distributors. Contractors often prioritize distributors that can reliably provide the exact equipment or parts they need on short notice, giving Watsco an advantage over competitors with smaller inventories or fewer locations. Second, its dense distribution network creates logistical advantages that are hard to replicate. HVAC replacement jobs are time sensitive, and contractors typically prefer suppliers located close to their service areas. Building a comparable network of locations, warehouses, and delivery capabilities would require substantial capital and years of investment, creating meaningful barriers to entry for potential competitors. Third, Watsco’s long-standing relationships with leading HVAC manufacturers reinforce its market position. Exclusive or territory-based distribution agreements with companies such as Carrier, Rheem, and Mitsubishi provide access to premium products that contractors rely on. These relationships also strengthen Watsco’s bargaining power and ensure consistent supply, while the joint ventures with Carrier further deepen strategic alignment between distributor and manufacturer. Fourth, the company benefits from strong customer relationships built over decades. HVAC contractors often develop long-term partnerships with distributors that provide reliable inventory, technical expertise, and responsive service. Because contractors rely on distributors to keep projects moving and minimize downtime, switching suppliers can involve operational risk and inconvenience. As a result, customer loyalty tends to be high once relationships are established. Fifth, Watsco’s technology investments create additional competitive advantages. Digital ordering platforms, pricing optimization tools, and data analytics improve efficiency for contractors and allow Watsco to manage pricing across millions of product-customer combinations. As these systems scale across its large network, they enhance margins and further differentiate the company from smaller distributors that lack similar technological capabilities. Finally, Watsco’s culture of ownership reinforces its operational performance. Thousands of employees participate in equity-based compensation programs, aligning their incentives with long-term shareholder value creation. This ownership mindset encourages a service-oriented culture focused on customer relationships, operational excellence, and disciplined capital allocation.

Management

Albert H. Nahmad serves as Chairman and CEO of Watsco, a role he has held since 1972. Remarkably, Albert H. Nahmad is also credited as the founder of Watsco in its current form, having led its transformation from a small manufacturing business into North America’s largest distributor of HVAC/R equipment, parts, and supplies. Albert H. Nahmad holds a Bachelor of Science degree in Mechanical Engineering from the University of New Mexico and a Master of Science degree in Industrial Administration from Purdue University. Over more than five decades of leadership, Albert H. Nahmad has been the driving force behind Watsco’s long term strategy, entrepreneurial culture, and sustained growth. One of the most pivotal decisions of his tenure came in 1989 when he led the company’s transition away from manufacturing and toward HVAC distribution. This strategic shift fundamentally reshaped the company and laid the foundation for decades of compounding value creation. Since that transition, Watsco has delivered a total shareholder return CAGR of more than 19% over the past 30 years, placing it among the strongest long term performers in the S&P 500. Albert H. Nahmad is widely known for his disciplined capital allocation, conservative financial philosophy, and unwavering focus on long term value creation. He has repeatedly emphasized that the company’s guiding principle is long term thinking, prioritizing durable growth and sustainable competitive advantages rather than short term financial outcomes. Under his leadership, Watsco has expanded through a steady stream of acquisitions, strengthened its partnerships with leading HVAC manufacturers, and steadily increased its geographic footprint and market share in a fragmented industry. A defining characteristic of Albert H. Nahmad’s leadership is his deep alignment with shareholders. Albert H. Nahmad holds significant personal ownership and voting power through the company’s Class B shares, reinforcing an owner operator mindset at the highest level of the organization. This ownership structure has shaped Watsco’s culture, which places strong emphasis on long term thinking, disciplined decision making, and the creation of durable shareholder value. That ownership philosophy extends throughout the company. Watsco has built a culture in which employees are encouraged to think like owners through a range of equity participation programs. More than 160 leaders participate in long term restricted stock plans with vesting structures that often extend over a decade, while hundreds of additional employees participate in stock option, employee stock purchase, and retirement plans that include company shares. As a result, thousands of employees have direct financial alignment with the company’s long term performance, reinforcing a culture of accountability and commitment to value creation. Albert H. Nahmad has also structured Watsco’s operating model around a combination of scale and local autonomy. While the company benefits from its national purchasing power and supplier relationships, individual operating units and local leadership teams maintain a high degree of independence. This decentralized structure encourages entrepreneurial thinking and allows local managers to respond effectively to regional market dynamics while still benefiting from the broader resources and capabilities of the organization. Beyond his corporate responsibilities, Albert H. Nahmad has been actively involved in philanthropic and educational initiatives and has served on the boards of several charitable and academic organizations. Although he maintains a relatively low public profile, his tenure, strategic clarity, and consistent execution speak volumes about his capabilities as a leader. Given his extraordinary tenure, deep industry knowledge, and strong alignment with shareholders, Albert H. Nahmad remains a central pillar of Watsco’s long term success. His leadership has shaped the company’s strategy, culture, and capital allocation philosophy for more than half a century, and his continued involvement provides both continuity and credibility as Watsco continues to expand within a large and fragmented industry.

The Numbers

The first number we will look into is the return on invested capital, also known as ROIC. We want to see a 10-year history, with all numbers exceeding 10% in each year. Watsco has historically generated very high ROIC, which is somewhat unusual for a distribution business. The main reason is the nature of its business model. Watsco does not manufacture HVAC equipment and therefore does not need to invest heavily in factories, machinery, or research and development. Instead, the company focuses on distribution, meaning most of the money tied up in the business is related to inventory and its network of distribution locations. Because the company can generate significant profits without requiring very large investments in physical assets, it is able to produce strong returns on the capital it uses to operate. Another important factor is the structure of the HVAC industry. A large portion of demand comes from the replacement market rather than new construction. Air conditioning and heating systems typically last between 8 and 20 years, and when they fail they usually need to be replaced quickly. There are more than 100 million installed HVAC systems in the United States alone, many of which are already more than a decade old and gradually reaching the end of their useful lives. This creates a large and recurring replacement cycle that supports steady demand. Because contractors need equipment and parts immediately when systems break down, they rely heavily on distributors that can provide quick access to inventory, which strengthens Watsco’s position and helps maintain stable profitability. Watsco’s scale also plays a significant role in its ability to generate high returns. With nearly 700 locations and relationships with more than 1.400 suppliers, the company benefits from strong purchasing power and operational efficiency. Its size allows it to maintain broad product availability and high service levels while spreading costs across a much larger revenue base than smaller competitors. Contractors often prefer distributors that consistently have the products they need in stock, which helps Watsco capture a larger share of contractor spending and sustain healthy margins. Another contributor to profitability is the mix of products that Watsco sells. While HVAC equipment accounts for most of its revenue, a meaningful portion of profit comes from parts, supplies, and accessories such as compressors, thermostats, refrigerants, tools, and installation materials. These items typically carry higher margins than large equipment and are purchased more frequently by contractors, which supports recurring revenue and stronger profitability. The company’s investments in technology also support margins and efficiency. Watsco has developed digital ordering platforms, mobile applications, and pricing tools that help contractors find products, check availability, and place orders quickly. At the same time, these systems allow Watsco to adjust prices more precisely based on factors such as location, customer type, and purchasing behavior. As these tools are used across the company’s large network, they improve efficiency and help strengthen margins. The unusually high returns seen in 2021 and 2022 were partly the result of temporary factors. During that period, HVAC demand was particularly strong as housing activity increased and many homeowners invested in upgrades and renovations. At the same time, supply chain disruptions and inflation led to significant price increases for HVAC equipment. Distributors such as Watsco often benefited from selling inventory that had been purchased earlier at lower prices while replacement costs were rising, which temporarily boosted margins. Revenue also grew faster than operating costs during this period, which further lifted returns. The decline in ROIC in 2024 and 2025 likely reflects a normalization after those unusually strong years. Demand has moderated somewhat as housing activity slowed and consumer spending became more cautious. At the same time, distributors increased inventory levels after the supply chain disruptions of earlier years to ensure product availability. Holding more inventory requires more capital and therefore reduces returns on invested capital. In addition, the exceptional pricing benefits that occurred during the inflationary period have largely faded, and changes in the mix between equipment and higher margin parts and supplies can also affect margins from year to year. Even with this recent decline, Watsco’s ROIC remains strong compared with most distribution businesses. While the peak levels above 20% seen in 2021 and 2022 may not be sustainable over the long term, the underlying drivers of high returns remain intact. The large installed base of HVAC systems continues to create a steady replacement cycle, the industry remains fragmented and offers opportunities for consolidation, and Watsco’s scale, supplier relationships, and technology investments provide meaningful competitive advantages. As market conditions stabilize and demand normalizes, it would not be surprising to see ROIC improve again, potentially settling somewhere in the range of 15% to 20% over the long term, which would still represent a very attractive level of profitability for a distributor.

The next numbers are the book value + dividend. In my old format this was known as the equity growth rate. It was the most important of the four growth rates I used to use in my analyses, which is why I will continue to use it moving forward. As you are used to see the numbers in percentage, I have decided to share both the numbers and the percentage growth year over year. To put it simply, equity is the part of the company that belongs to its shareholders – like the portion of a house you truly own after paying off part of the mortgage. Growing equity over time means the company is becoming more valuable for its owners. So, when we track book value plus dividends, we’re essentially looking at how much value is being built for shareholders year after year. Watsco has managed to grow its equity every year primarily because the company consistently generates profits and retains a portion of those earnings in the business. When a company earns more than it distributes or spends on expansion, the remaining profits accumulate on the balance sheet and increase shareholders’ equity over time. The steady rise in equity therefore reflects Watsco’s ability to generate reliable earnings year after year. The stability of the HVAC industry plays an important role in this consistency. A large share of demand comes from the replacement market rather than new construction. Heating and cooling systems eventually wear out and must be replaced, typically after 8 to 20 years. Because homes and businesses depend on these systems for comfort and safety, replacements usually happen regardless of the broader economic environment. This creates a recurring demand cycle that helps Watsco generate profits consistently, which supports steady equity growth. Watsco’s dominant position in a fragmented industry also contributes to this trend. As the largest HVAC distributor in North America, the company benefits from strong relationships with suppliers and contractors, a broad product offering, and a dense network of locations. These advantages allow Watsco to capture a large share of contractor spending and gradually increase its market share over time. As the business expands, profits increase and equity grows accordingly. Another factor is the company’s long history of acquisitions. Since the late 1980s, Watsco has followed a disciplined “buy and build” strategy, acquiring regional distributors and expanding their operations through additional locations, product offerings, and supplier relationships. These acquisitions have helped increase the company’s scale and earnings power, which in turn contributes to the long term growth of equity. The pattern visible in your table reflects this consistency. Some years show stronger equity growth than others, but the overall direction has remained upward. The stronger growth seen in the early 2020s was influenced by unusually strong demand for HVAC systems and higher equipment prices during that period, which increased profitability. The slower growth in 2025 likely reflects more normalized market conditions following those unusually strong years. Looking ahead, it is reasonable to expect equity to continue growing if Watsco remains profitable and continues executing its strategy. The large installed base of HVAC systems ensures ongoing replacement demand, the industry remains fragmented and open to further consolidation, and Watsco’s scale advantages position it well to capture additional market share. While the growth rate may fluctuate from year to year depending on market conditions, the long term trend of steadily increasing equity is likely to persist if the company continues to operate as it has historically.

Finally, we will analyze the free cash flow. Free cash flow, in short, refers to the cash that a company generates after covering its operating expenses and capital expenditures. I use levered free cash flow margin because I believe that margins provide a better understanding of the numbers. Free cash flow yield refers to the amount of free cash flow per share that a company is expected to generate in relation to its market value per share. Watsco has historically generated strong and relatively consistent free cash flow, which reflects the quality and capital efficiency of its distribution business. Because Watsco does not manufacture equipment and does not need to invest heavily in factories or large fixed assets, a large portion of its earnings converts into cash. The company’s operations mainly require maintaining inventory and operating its distribution network, which allows it to produce solid cash generation relative to its revenue. The development of free cash flow margins in your table illustrates this. Over the past decade, free cash flow margins have generally ranged between roughly 5% and 10%, which is strong for a distribution business. These margins tend to fluctuate depending on market conditions, inventory levels, and the mix of products sold. Higher margins are often achieved when demand is strong, inventory is managed efficiently, and the company sells a larger share of higher margin parts and supplies relative to large equipment. The significant increase in free cash flow between 2020 and 2024 was largely driven by strong demand for HVAC systems during that period. Higher equipment prices and strong replacement demand supported higher revenue and profitability, which translated into strong cash generation. The peak in 2024 reflects a particularly strong year for cash generation, supported by healthy margins and efficient operations. The decline in free cash flow in 2025 likely reflects a normalization after those unusually strong years. Demand for HVAC equipment moderated as housing activity slowed and economic conditions became more cautious. In addition, the company carried higher inventory levels following the supply chain disruptions of earlier years, which temporarily reduces the amount of cash generated. Management has also indicated that improving inventory turnover is a priority going forward, which suggests they see room to unlock additional cash flow as operations become more efficient. Despite the decline in 2025, free cash flow remains strong and well above the levels seen earlier in the decade. The underlying drivers of cash generation remain intact. The replacement driven nature of the HVAC market continues to provide steady demand, Watsco’s scale and distribution network support efficient operations, and its focus on higher margin parts and supplies helps sustain profitability. Watsco primarily uses its free cash flow to return capital to shareholders and to invest in the future growth of the business. A major use of cash has been the company’s long standing dividend, which management considers a core part of the company’s identity. Watsco has paid dividends for more than five decades and recently increased its annual dividend again, reflecting confidence in the company’s cash generation. Management has also emphasized that the dividend is supported by the company’s strong cash flow rather than by borrowing. Beyond shareholder returns, Watsco also uses free cash flow to pursue acquisitions and strategic investments. The company has a long history of acquiring regional distributors to expand its footprint and strengthen its market position. Because the HVAC distribution industry remains fragmented, these acquisitions continue to represent an important growth opportunity. Management has also indicated that they are constantly evaluating investments and partnerships with equipment manufacturers to further expand the business. Another notable aspect of Watsco’s financial strategy is its conservative approach to debt. The company has historically maintained a very strong balance sheet and at times operates with little or no debt. This means that the cash generated by the business can be directed toward shareholder returns, acquisitions, and strategic initiatives rather than toward servicing large financial obligations. Looking forward, it is reasonable to expect free cash flow to grow over time as the company continues to expand and the HVAC replacement cycle remains intact. While free cash flow may fluctuate from year to year depending on demand, inventory levels, and pricing conditions, the long term trend is likely to remain positive. If management succeeds in improving inventory turnover and maintaining healthy margins, free cash flow could increase again in the coming years, continuing the strong cash generation that has characterized Watsco’s business over the long term. The free cash flow yield indicates that the shares are currently trading at a premium valuation. However, valuation will be discussed in more detail later in the analysis.

Debt

Another important aspect to consider is the level of debt. It is crucial to determine whether a business carries manageable debt that could be repaid within a three-year period. This is calculated by dividing total long-term debt by earnings. After reviewing Watsco’s financials, I found that the company currently carries no debt. Therefore, debt is not a concern when investing in Watsco. It is also worth noting that over the past 20 years, Watsco’s long-term debt has never exceeded 0,32 years’ worth of earnings. This long track record of conservative financial management suggests that debt is unlikely to ever pose a significant risk for investors in Watsco. Management has consistently emphasized maintaining a strong and conservative balance sheet as a core part of the company’s long-term philosophy. Watsco was debt-free throughout the entirety of 2025, reflecting this cautious financial approach. A strong balance sheet also gives the company significant flexibility to pursue acquisitions, invest in new initiatives, and respond to opportunities in a fragmented industry. In other words, Watsco’s financial strength allows it to fund growth internally without relying on excessive borrowing, which further reduces risk for shareholders.

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Risks

Supplier concentration and supply chain risks is a risk for Watsco because the company relies heavily on a relatively small number of manufacturers for the majority of the products it distributes. In 2025, Watsco’s ten largest suppliers accounted for approximately 85% of its purchases, with Carrier alone representing about 62% and Rheem about 8%. This level of concentration means that Watsco’s operations are closely tied to the performance, reliability, and strategic decisions of a small group of key suppliers. Because Watsco does not manufacture HVAC equipment itself, it depends entirely on these manufacturers to supply the products that contractors need to install and repair heating and cooling systems. If a major supplier were to experience production disruptions, supply shortages, or logistical challenges, Watsco could temporarily face difficulties obtaining sufficient inventory to meet customer demand. Such disruptions could occur for a variety of reasons, including manufacturing delays, labor shortages, natural disasters, or problems within the supplier’s own supply chain. Since contractors often require equipment immediately when replacing or repairing systems, any disruption in product availability could lead customers to purchase from alternative distributors that have inventory available. Another risk stems from the market acceptance and competitiveness of the products manufactured by these suppliers. Watsco’s sales depend not only on having access to equipment but also on whether those products remain attractive to contractors and end customers. If a major supplier were to fall behind competitors in terms of product quality, energy efficiency, or technological innovation, demand for those products could decline. Because Watsco distributes several brands produced by the same manufacturers, such a decline could materially affect sales in certain regions or product categories. Regulatory changes also contribute to this risk. HVAC systems must comply with evolving environmental and energy efficiency standards, including regulations related to refrigerants with lower global warming potential. If suppliers experience delays in developing compliant products or face challenges transitioning to new technologies, the availability of compliant equipment could be temporarily limited. This could disrupt sales or require Watsco to adjust its product mix quickly. Supply chain exposure to global manufacturing locations adds another layer of risk. Many HVAC manufacturers source components from China and Mexico or assemble a significant portion of residential and light commercial equipment in Mexico. Changes in trade policy, tariffs, or geopolitical tensions could increase manufacturing costs or disrupt supply chains. If suppliers pass these higher costs on to distributors such as Watsco, the company may need to raise prices, which could reduce demand or cause customers to seek alternative solutions. The structure of Watsco’s distribution agreements also contributes to this risk. The company maintains exclusive distribution agreements with certain manufacturers in specific territories, including major partners such as Carrier and Rheem. While these agreements provide access to well-known brands and help strengthen Watsco’s market position, they also increase dependence on those manufacturers. If a key supplier were to terminate or significantly alter a distribution relationship, it could disrupt Watsco’s operations in affected regions and require time to replace the lost product lines.

Competition is a risk for Watsco because the HVAC distribution industry is highly competitive and fragmented, with many regional, national, and manufacturer-owned distributors competing for the same contractor customers. In many markets, Watsco faces competition from both independent distributors and HVAC equipment manufacturers that operate their own distribution networks. This creates a dynamic environment in which companies must continuously compete on product availability, pricing, service quality, and relationships with contractors. One of the main competitive challenges comes from the large number of distributors operating in the industry. The HVAC distribution market in the United States alone includes more than 2.000 distributors. Many of these are smaller regional businesses that compete aggressively within their local markets. These companies often have long-standing relationships with contractors and may compete by offering lower prices or highly personalized service. Even though Watsco benefits from its scale and extensive distribution network, the fragmented nature of the industry means that competition remains intense at the local level. Another source of competition comes from HVAC manufacturers that distribute products through their own company-owned distribution networks. Some major equipment manufacturers operate their own branches in certain markets, which allows them to sell directly to contractors. Because these manufacturers control the production of the equipment itself, they may have advantages in pricing, product availability, or marketing support. This can put pressure on independent distributors such as Watsco, particularly in regions where manufacturer-owned distribution networks are strong. Price competition is another important risk. Contractors often purchase equipment and parts frequently and may compare prices between distributors. If competitors lower prices in order to gain market share, Watsco could face pressure to reduce its own prices to remain competitive. Sustained pricing pressure could reduce margins and negatively affect profitability over time. Competition also occurs in terms of product availability and service quality. Contractors typically prefer distributors that can quickly provide the exact equipment or replacement parts needed to complete a job. If competitors are able to maintain better inventory availability, faster delivery, or stronger technical support, contractors may shift some of their purchases to those distributors. Because HVAC replacement jobs are often time sensitive, even small differences in service levels can influence contractor purchasing decisions.

Macroeconomic conditions pose a risk for Watsco because the company’s performance is closely tied to the broader economic environment, including consumer spending, housing activity, interest rates, and the financial health of both its customers and suppliers. When economic conditions weaken, demand for HVAC equipment and related products can decline, which may negatively affect Watsco’s revenue, profitability, and cash generation. One of the most important macroeconomic drivers for Watsco is the housing and construction market. A portion of Watsco’s business comes from supplying HVAC equipment for new residential and commercial construction projects. These projects are highly sensitive to economic cycles and interest rates. When interest rates rise or economic uncertainty increases, housing starts often decline and developers may delay or cancel building projects. This reduces demand for HVAC systems used in new construction. For example, management has noted that weaker construction activity contributed to a decline in equipment demand in 2025. Although the majority of HVAC demand comes from the replacement market, economic conditions can still influence this segment. When consumers face financial pressure or uncertainty about their economic future, they may delay replacing or upgrading HVAC systems unless a failure makes replacement unavoidable. Management noted that the replacement market declined by approximately 6% in 2025, reflecting both weaker consumer spending and increased caution among contractors and homeowners. This demonstrates that even replacement demand, which is typically more resilient, can be affected during periods of economic weakness. Interest rates also play a significant role in Watsco’s business. Higher interest rates can reduce housing affordability, which lowers demand for new homes and renovations. At the same time, contractors and homeowners may rely on financing to purchase HVAC systems. When borrowing costs rise, large purchases such as heating and cooling systems may be postponed or scaled back. Because HVAC installations can be expensive, financing conditions can directly influence purchasing decisions. Another macroeconomic risk stems from the financial health of Watsco’s customers. The company serves more than 130.000 contractors, many of which are small and independent businesses. These contractors often rely on short term credit or loans to fund their operations and purchase equipment from distributors. If credit conditions tighten or access to financing becomes more limited, contractors may reduce their purchasing activity or delay payments on existing orders. This could increase the risk of unpaid invoices and place pressure on Watsco’s cash flow.

Reasons to invest

Structural demand drivers are a reason to invest in Watsco because the company benefits from long term trends that steadily increase the demand for HVAC systems, repairs, and replacements. One of the most important of these trends is the large and continuously growing installed base of HVAC equipment in the United States. Since 1980, the installed base has increased every single year and today exceeds 120 million systems. This growth creates a powerful tailwind for Watsco’s core business because every installed system will eventually need maintenance, replacement parts, or a full replacement. As a distributor that supplies both new systems and the components required to service them, Watsco is positioned to benefit from this expanding installed base over many decades. The replacement cycle for HVAC systems further strengthens this dynamic. Heating and cooling equipment typically lasts between 8 and 20 years depending on climate conditions and usage patterns. Today more than 100 million systems in the United States have been operating for more than ten years, meaning a large portion of the installed base is gradually approaching the end of its useful life. Many of these older units also fall short of modern energy efficiency standards, creating an additional incentive for homeowners and businesses to upgrade to newer systems. Because heating and cooling systems are essential for comfort and safety, especially in regions with extreme temperatures, replacements are often unavoidable once equipment fails. This creates a recurring and relatively predictable source of demand for distributors such as Watsco. Another important driver is the evolving mix of HVAC technologies. The market is gradually shifting away from traditional gas furnaces toward electric heat pumps. Unlike furnaces that are typically used only for heating, heat pumps are used year round for both heating and cooling. Because these systems operate more frequently, they tend to experience greater wear and require more regular maintenance. As a result, the transition toward heat pumps increases demand for replacement parts and may shorten replacement cycles for equipment. This shift benefits Watsco not only through higher equipment sales but also through increased demand for the higher margin parts and supplies used to service these systems. Regulatory changes are also supporting long term replacement demand. Environmental standards and refrigerant regulations continue to evolve, requiring manufacturers to introduce new technologies that are more energy efficient and environmentally friendly. As older systems using legacy refrigerants become harder to repair or maintain, homeowners may be required to replace entire systems rather than repairing individual components. For example, the industry is transitioning away from older refrigerants such as R410A toward newer refrigerants with lower environmental impact. As distributors gradually run out of parts and equipment compatible with older systems, contractors will increasingly recommend full system replacements rather than partial repairs. This regulatory shift can accelerate the replacement cycle and increase demand for new equipment.

Acquisitions are a reason to invest in Watsco because they have been one of the most important drivers of the company’s long term growth and have helped transform it into the largest HVAC/R distributor in North America. Since shifting its strategy toward distribution in 1989, Watsco has followed a disciplined “buy and build” approach that combines acquisitions with operational improvements. This strategy has allowed the company to steadily expand its geographic footprint, strengthen its relationships with suppliers, and increase its share of a highly fragmented market. The HVAC distribution industry remains fragmented, with more than 2.000 distributors operating across the United States. Many of these businesses are privately owned regional companies that serve contractors in specific local markets. This structure creates a long runway for consolidation, and Watsco has positioned itself as one of the primary consolidators in the industry. Since 1989, the company has completed around 70 acquisitions, gradually building a nationwide distribution network that now includes hundreds of locations across North America. The “buy” side of Watsco’s strategy focuses on acquiring well established distributors that already have strong customer relationships and local market positions. These businesses are often family owned and have been operating successfully for decades. Watsco typically looks for companies that either strengthen its presence in markets where it already operates or allow it to enter new geographic areas. Management has historically been very selective, targeting businesses that meet strict financial and strategic criteria. An important element of Watsco’s acquisition strategy is its relationship driven approach. Many HVAC distributors are multi generational family businesses, and owners often prefer to sell to a partner that will preserve their legacy and support their employees. Over decades, Watsco has built a reputation as a trusted partner for these companies, which has created a strong pipeline of potential acquisition opportunities. Management believes that there are still dozens of distributors in the United States with more than $100 million in annual revenue, many of which remain family owned and could eventually become acquisition targets. The “build” component of the strategy is equally important. After acquiring a distributor, Watsco invests in expanding the business and improving its operations. This may include adding new product lines, opening additional locations, improving pricing strategies, and introducing new technology platforms. Acquired businesses also benefit from Watsco’s scale and purchasing power, which can help them offer broader product availability and better service to contractors. By combining local relationships with the advantages of a larger organization, Watsco is often able to grow the acquired businesses faster than they would have grown independently. Another advantage of Watsco’s acquisition model is that it typically retains local management teams and preserves the existing culture of the acquired companies. Rather than fully integrating businesses into a centralized structure, Watsco allows local leadership to continue running operations while benefiting from the resources and support of the larger organization. This decentralized approach encourages entrepreneurial thinking and helps maintain the strong relationships that distributors have with contractors and suppliers in their local markets.

Technology and innovation are a reason to invest in Watsco because the company is transforming what has historically been a traditional distribution business into a technology enabled platform that improves efficiency, strengthens customer relationships, and creates new growth opportunities. While many distributors compete primarily on product availability and pricing, Watsco has invested heavily in digital tools and data systems that make it easier for contractors to run their businesses and interact with the company. This strategy not only improves Watsco’s own operations but also helps its customers become more productive and profitable, which strengthens loyalty and deepens long term relationships. Over the past several years, Watsco has built a strong culture of innovation and digital development. The company employs roughly 300 technology professionals and continues to invest in modern infrastructure, data systems, and customer facing platforms. These investments allow contractors to search products, check inventory, place orders, track deliveries, process warranties, and access financing directly from mobile devices or online platforms. This level of digital integration is uncommon in the HVAC distribution industry, which has historically relied on phone orders and in person visits to local branches. By simplifying and speeding up these processes, Watsco reduces friction for contractors and makes it easier to do business with the company. Digital adoption among customers has already reached meaningful scale. E-commerce now accounts for roughly 35% of Watsco’s sales and exceeds 60% in certain U.S. markets. The company’s mobile applications are also widely used, with more than 73,000 contractor users actively engaging with the platform. As more contractors adopt these tools, the benefits compound because digital ordering improves operational efficiency, reduces administrative work, and provides better visibility into pricing and product availability. One of Watsco’s most important innovations is its digital sales platform, OnCall Air. This system allows contractors to present professional proposals to homeowners directly from tablets or mobile devices. The platform includes real time pricing, inventory availability, product comparisons, warranty information, and financing options. Contractors using OnCall Air can generate clear and professional proposals that help homeowners understand their options and make faster purchasing decisions. The system has already facilitated billions of dollars in equipment sales and continues to grow rapidly. The technology also improves the economics of HVAC contractors’ businesses. Contractors using OnCall Air tend to close more jobs, sell higher efficiency equipment, and increase the size of each transaction. Financing tools integrated into the platform make it easier for homeowners to afford larger purchases, which benefits both the contractor and Watsco. Data shows that contractors using the platform often generate higher margins, present more quotes, and close more jobs compared with traditional sales processes. Because these tools help contractors grow their businesses, they create stronger relationships and make Watsco a more essential partner in their daily operations.

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Valuation

Now it is time to calculate the share price. I perform three different calculations that I learned at a Phil Town seminar. If you want to make the calculations yourself for this or other stocks, you can do so through the tools page on my website, where you have access to all three calculators for free.

The first is called the Margin of Safety price, which is calculated based on earnings per share (EPS), estimated future EPS growth, and estimated future price-to-earnings ratio (P/E). The minimum acceptable rate of return is 15%. I chose to use an EPS of 12,25, which is from the year 2025. I have selected a projected future EPS growth rate of 10%. Finbox expects EPS to grow by 9,6% in the next five years. Additionally, I have selected a projected future P/E ratio of 20, which is double the growth rate. This decision is based on Watsco's historically higher price-to-earnings (P/E) ratio. Finally, our minimum acceptable rate of return has already been established at 15%. After performing the calculations, we determined the sticker price (also known as fair value or intrinsic value) to be $157,08. We want to have a margin of safety of 50%, so we will divide it by 2. This means that we want to buy Watsco at a price of $78,54 (or lower, obviously) if we use the Margin of Safety price.

The second calculation is known as the Ten Cap price. The rate of return that a company owner (or stockholder) receives on the purchase price of the company essentially represents its return on investment. The minimum annual return should be at least 10%, which I calculate as follows: The operating cash flow last year was 570 and capital expenditures were 35. I attempted to analyze their annual report to calculate the percentage of capital expenditures allocated to maintenance. I couldn't find it, but as a rule of thumb, you can expect that 70% of the capital expenditures will be allocated to maintenance purposes. This means that we will use 25 in our calculations. The tax provision was 150. We have 37,9 outstanding shares. Hence, the calculation will be as follows: (570 – 25 + 150) / 37,9 x 10 = $183,38 in Ten Cap price.

The final calculation is referred to as the Payback Time price. It is a calculation based on the free cash flow per share. With Watsco's free cash flow per share at $14,11 and a growth rate of 10%, if you want to recoup your investment in 8 years, the Payback Time price is $177,50.

Conclusion

I believe that Watsco is a great company with exceptionally strong management. Watsco has built its moat through its scale, dense distribution network, exclusive supplier relationships, long-standing contractor relationships, technology platforms, and ownership-driven culture. The company has consistently achieved a high ROIC and is expected to continue doing so going forward. Free cash flow has also been consistent, and although it declined in 2025, it is expected to grow again over time. Supplier concentration and supply chain risks are a risk for Watsco because the company relies heavily on a small number of manufacturers for the majority of the HVAC equipment it distributes. If key suppliers such as Carrier or Rheem experience production disruptions, supply shortages, regulatory challenges, or strategic changes, Watsco could face inventory shortages, higher costs, or reduced product competitiveness, which could negatively affect sales and operations. Competition is another risk because the HVAC distribution industry is highly fragmented, with more than 2.000 distributors and manufacturer-owned distribution networks competing for the same contractor customers. As a result, Watsco must continuously compete on price, product availability, and service quality, and increased competition could pressure margins or lead to the loss of market share. Macroeconomic conditions also pose a risk because demand for HVAC equipment is influenced by factors such as housing activity, interest rates, and consumer spending. During economic slowdowns or periods of high interest rates, new construction may decline and homeowners or contractors may delay purchases, which can reduce demand and negatively affect Watsco’s revenue and profitability. Structural demand drivers are a reason to invest in Watsco because the company benefits from a large and steadily growing installed base of more than 120 million HVAC systems in the United States, all of which eventually require maintenance, parts, or replacement. As many of these systems age and as technology and environmental regulations evolve, the resulting replacement cycle creates a recurring and predictable source of demand for the equipment and parts that Watsco distributes. Acquisitions are another reason to invest in Watsco because the company has successfully used a disciplined buy and build strategy to consolidate a highly fragmented HVAC distribution industry. By acquiring strong regional distributors and helping them grow through scale, technology, and expanded product offerings, Watsco has steadily increased its market share and built the largest HVAC distribution network in North America. Technology and innovation further strengthen the investment case because Watsco is using digital platforms, data systems, and tools such as OnCall Air to modernize the HVAC distribution industry and make it easier for contractors to run their businesses. These technologies improve efficiency, strengthen customer relationships, and help contractors close more jobs, which increases loyalty and supports long term growth for Watsco. I believe there are many things to like about Watsco, and I will personally buy shares at $293, which gives me a 20% discount to the intrinsic value based on the Ten Cap price.

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