General

Watsco, Inc. and its subsidiaries (collectively, “Watsco”, which may be referred to as we , us or our ) was incorporated in 1956 and is the largest distributor of air conditioning, heating, and refrigeration equipment and related parts and supplies (“HVAC”) in the United States. We presently operate from 380 locations in 32 states. Our revenues have increased from $80 million in 1989 to over $1.8 billion in 2006 via a strategy of acquiring companies with established market positions and subsequently building revenue and profit growth from a combination of adding locations, products, services and other initiatives.

Our principal executive offices are located at 2665 South Bayshore Drive, Suite 901, Coconut Grove, Florida 33133, and our telephone number is (305) 714-4100. Our website address on the Internet is www.watsco.com and e-mails may be sent to info@watsco.com.

Residential Central Air Conditioning, Heating and Refrigeration Industry

The HVAC distribution industry is highly fragmented with over 1,300 distribution companies. The industry is well-established having its primary period of growth during the post-World War II era with the advent of affordable central air conditioning and heating systems for residential applications.

Based on data published by the Air Conditioning and Refrigeration Institute (“ARI”), the Gas Appliance Manufacturers Association and other available data, we estimate the market for residential central air conditioning, heating and refrigeration equipment and related parts and supplies in the United States is approximately $26 billion with unitary equipment shipments having grown at a compounded annual rate of 3.4% since 1996. Residential central air conditioners are manufactured primarily by seven major companies that together account for approximately 90% of all units shipped in the United States each year. These companies are: Carrier Corporation (“Carrier”), a subsidiary of United Technologies Corporation, Goodman Manufacturing Corporation (“Goodman”), Rheem Manufacturing Company (“Rheem”), American Standard Companies Inc. (“American Standard”), York International Corporation (“York”), a subsidiary of Johnson Controls, Inc., Lennox International, Inc. (“Lennox”) and Nordyne Corporation (“Nordyne”), a subsidiary of Nortek Corporation. These manufacturers distribute their products through a combination of factory-owned and independent distributors who, in turn, supply the equipment and related parts and supplies to contractors and dealers nationwide that sell to and install the products for the consumer.

Residential central air conditioning and heating equipment is sold to both the replacement and the homebuilding markets. The replacement market has increased substantially in size and importance over the past several years as a result of the aging of the installed base of residential central air conditioners and furnaces, the introduction of new energy efficient models, the remodeling and expansion of existing homes, the addition of central air conditioning to homes that previously had only heating products and the consumers’ overall unwillingness to live without air conditioning or heating products. According to industry data published by the Air Conditioning & Refrigeration Institute, over 100 million central air conditioning units and furnaces have been installed in the United States in the past 20 years. Many units installed during this period have reached the end of their useful lives, thus providing a growing and substantial replacement market. The mechanical life of central air conditioning and furnaces varies by geographical region due to usage and is estimated to range from 8 to 20 years.

We also sell products to the refrigeration market. Such products include condensing units, compressors, evaporators, valves, refrigerant, walk-in coolers and ice machines for industrial and commercial applications. We distribute products manufactured by Copeland Compressor Corporation, a subsidiary of Emerson Electric Co., E. I. Du Pont De Nemours and Company, Tecumseh Products Company and The Manitowoc Company, Inc.

Business Strategy

We have a proven “buy and build” strategy for long-term growth. The “buy” component of the strategy focuses on acquiring market leaders at attractive valuations, either expanding into new geographic areas or gaining further market share in existing markets. We follow a disciplined, conservative approach that looks for opportunities that fit well-defined financial and strategic criteria. The “build” component of the strategy is focused on the institution of a growth culture at acquired companies, the addition of products and locations to better serve our customers, the exchange of ideas and business concepts amongst the executive management team and

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investing in new technology as a competitive advantage. Newly acquired businesses are able to access our capital resources and established vendor relationships to provide an expanded array of product lines on the most favorable terms and conditions with an intensified commitment to service.

Strategy in Existing Markets

Our strategy for growth in existing markets focuses on customer service and product expansion to satisfy the needs of the higher growth, higher margin replacement market, where customers generally demand immediate, convenient and reliable service. In response to this need, our focus is to (i) offer broad product lines, including the necessary equipment, parts and supplies to enable a contractor to install or repair a central air conditioner, furnace or refrigeration system, (ii) maintain multiple warehouse locations for increased customer convenience, (iii) maintain well-stocked inventories to ensure that customer orders are filled in a timely manner, (iv) provide a high degree of technical expertise at the point of sale and (v) develop and implement technological strategies to further enhance customer service capabilities. We believe these concepts provide a competitive advantage over smaller, less-capitalized competitors who are unable to commit resources to open additional locations, implement technological business solutions, provide the same variety of products, maintain the same inventory levels or attract the wide range of expertise that is required to support a diverse product offering. We also believe that in some geographic areas we have a competitive advantage over factory-operated distributor networks who typically do not maintain as diversified inventories of parts and supplies and whose fewer number of warehouse locations make it more difficult to meet the time-sensitive demands of the replacement market.

In addition to the replacement market, we sell to the homebuilding market, including both traditional site-built homes and manufactured housing. We believe our reputation for reliable, high-quality service and relationships with contractors, who may serve both the replacement and new construction markets, allow us to compete effectively in these markets.

Acquisition Strategy

Our acquisition strategy is focused on acquiring businesses that complement our current presence in existing markets or establishing a presence in new markets. Since 1989, we have acquired 51 HVAC distribution businesses, four of which currently operate as primary operating subsidiaries. The other smaller distributors acquired have been integrated into or are under the management of the primary operating subsidiaries. We continue to pursue additional strategic acquisitions to allow further penetration in existing markets and expand into new geographic markets.

Product Line Expansion

We actively seek new or expanded territories of distribution from the key equipment suppliers. Significant relationships currently exist with Rheem, Carrier, Nordyne, Goodman, American Standard and Lennox. We continually evaluate new parts and supply products to support equipment sales and further enhance service to our customers. The initiative includes increasing the product offering with existing vendors and identifying new product opportunities through traditional and non-traditional supply channels. We have also introduced private-label products as a means to obtain market share and grow revenues. We believe that the private-label brand products complement the existing offerings at the selected locations based on their particular market position, price-point and customer needs.

Operating Philosophy

Our subsidiaries operate in a manner that recognizes the long-term relationships established between the distributors and their customers. Generally, the identity and culture of acquired businesses continue by retaining their historical trade-name, management team and sales organization, and by continuing the product brand-name offerings. We believe this strategy builds on the value of the acquired operations by creating additional sales opportunities and is an attractive exit strategy for the existing ownership of the long-standing distribution companies targeted for acquisition.

A specialized functional support staff is maintained at our corporate headquarters to support the subsidiaries’ strategies for growth in their respective markets. Such functional support includes specialists in finance, accounting, product procurement, treasury and working capital management, tax planning, risk management and safety. Certain general and administrative expenses are targeted for cost savings that leverage the overall business volume and improve operating efficiencies.

Technology

Our technology initiatives include: (i) implementation of effective point-of-sale systems that allow timely and effective customer service, including up-to-date pricing and inventory availability, (ii) enabling connectivity with our suppliers and by our customers to the relevant components of our subsidiaries’ business software and (iii) a web site, ACDoctor.com, which provides homeowners and businesses useful information and a variety of services.

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DESCRIPTION OF BUSINESS

Products

Watsco sells an expansive line of products and maintains a diverse mix of inventory to meet its customers’ immediate needs and seeks to provide products a contractor would generally require when installing or repairing a central air conditioner, furnace or refrigeration system. The cooling capacity of air conditioning units is measured in tons. One ton of cooling capacity is equivalent to 12,000 BTUs and is generally adequate to air condition approximately 500 square feet of residential space. The products we distribute consist of: (i) equipment, including residential central air conditioners ranging from 1-1/2 to 5 tons, light commercial air conditioners ranging up to 20 tons, gas, electric and oil furnaces ranging from 50,000 to 150,000 BTUs, commercial air conditioning and heating equipment and systems ranging from 5 to 25 tons, and other specialized equipment; (ii) parts, including replacement compressors, evaporator coils, motors and other component parts; and (iii) supplies, including thermostats, insulation material, refrigerants, ductwork, grills, registers, sheet metal, tools, copper tubing, concrete pads, tape, adhesives and other ancillary supplies.

Sales of air conditioning and heating equipment accounted for approximately half of our distribution revenues for both years ended December 31, 2006 and 2005; and sales of parts and supplies (currently sourced from over 600 vendors) comprised the other half of our revenues for both such periods as well.

Distribution and Sales

We currently operate from 380 locations, a vast majority of which are located in regions that we believe have favorable demographic trends. We maintain large inventories at each warehouse location, which is accomplished by transporting inventory between locations daily and either directly delivering products to customers using one of our 826 trucks or by making products available for pick-up at the location nearest to the customer. Watsco has approximately 365 commissioned salespeople, averaging 11 years or more of experience in the air conditioning, heating and refrigeration distribution industry.

Markets

Watsco’s network serves 32 states from these 380 locations. Primary markets include (the number of locations in the state are in parentheses): Florida (75), Texas (63), Georgia (34), California (30) and North Carolina (28). Locations also reside in Tennessee, South Carolina, Mississipi, Louisiana, Virginia, Alabama, Arizona, Massachusetts, Arkansas, Missouri, Kansas, Oklahoma, Iowa, Kentucky, Maine, New Hampshire, New York, South Dakota, Connecticut, Maryland, Nebraska, Nevada, New Jersey, North Dakota, Rhode Island, Vermont and Illinois. Products are sold on an export-only basis to portions of Latin America and the Caribbean Basin. Export sales are less than 1% of total revenues.

Customers and Customer Service

We sell to contractors and dealers who service the replacement and new construction markets for residential and light commercial central air conditioning, heating and refrigeration systems and we currently serve over 40,000 customers. No single customer in 2006, 2005 or 2004 represented more than 2% of consolidated revenues. We focus on providing products where and when the customer needs them, technical support by phone or on site as required, and quick and efficient service at the locations. Increased customer convenience is also provided through e-commerce, which allows customers to access information on-line 24 hours a day, 7 days a week to search for desired products, verify inventory availability, obtain pricing, place orders, check order status, schedule pickup or delivery times and make payments. We believe we successfully compete with other distributors primarily on the basis of an experienced sales organization, strong service support, high quality reputation and broad product lines.

Key Equipment Suppliers

Significant relationships are maintained with Rheem, Carrier, Nordyne, Goodman, American Standard and Lennox, each a leading manufacturer of residential central air conditioning and heating equipment in the United States. Each manufacturer has a well-established reputation of producing high-quality, competitively priced products. The manufacturers’ current product offerings, quality, serviceability and brand-name recognition allow us to operate favorably against our competitors. To maintain brand-name recognition, the manufacturers provide national advertising and participate with us in cooperative advertising programs and promotional incentives that are targeted to both contractors and end-users. It is estimated that the replacement market currently accounts for approximately two-thirds of industry sales in the United States and is expected to increase as units installed in the past 20 years wear out and get replaced or updated to more energy-efficient models.

Approximately 47%, 48% and 45% of purchases in 2006, 2005 and 2004, respectively, were made from the seven key equipment suppliers. The largest supplier accounted for 17% of all purchases made in each of the years ended 2006, 2005 and 2004. A

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significant interruption in the delivery of these products could impair our ability to continue to maintain current inventory levels and could adversely affect our financial results. Future financial results are also materially dependent upon the continued market acceptance of these manufacturers’ products and their ability to continue to manufacture products that comply with laws relating to environmental and efficiency standards. We believe that sales of other complementary equipment products and continued emphasis to expand sales of parts and supplies are mitigating factors against such risks.

Distribution Agreements

Distribution agreements have been executed with six key equipment suppliers, either on an exclusive or non-exclusive basis, for terms generally ranging from one to ten years. Certain of the distribution agreements contain provisions that restrict or limit the sale of competitive products in the markets served. Other than the markets where such restrictions and limitations may apply, we may distribute other manufacturers’ lines of air conditioning or heating equipment.

Seasonality

Sales of residential central air conditioners, heating equipment and parts and supplies have historically been seasonal. See “Business Risk Factors” in Item 1A.

Competition

We operate in highly competitive environments. See “Business Risk Factors” in Item 1A.

Employees

There were approximately 3,300 employees as of December 31, 2006, substantially all of which are non-union employees. Most of these employees are employed on a full-time basis, and relations with employees are good.

Order Backlog

Order backlog is not a material aspect of the business and no material portion of the business is subject to government contracts.

Government Regulations, Environmental and Health and Safety Matters

Our industry and business are subject to federal, state and local laws and regulations relating to the generation, storage, handling, emission, transportation and discharge of materials into the environment. These include laws and regulations implementing the Clean Air Act, relating to minimum energy efficiency standards of HVAC systems and the production, servicing and disposal of certain ozone-depleting refrigerants used in such systems, including those established at the Montreal Protocol in 1992 concerning the phase-out of CFC-based refrigerants on products manufactured after January, 2010. We are also subject to regulations concerning the transport of hazardous materials, including regulations adopted pursuant to the Motor Carrier Safety Act of 1990. Our operations are also subject to health and safety requirements including the Occupational, Safety and Health Act (OSHA). Management believes that the business is operated in substantial compliance with all applicable federal, state and local provisions relating to the protection of the environment, transport of hazardous materials and health and safety requirements.

Our industry and business was also subject to a Department of Energy mandate that required, effective January 23, 2006, that our key equipment suppliers manufacture products with a higher standard of energy efficiency. Prior to January 23, 2006, the minimum standard for energy efficiency as measured by industry guidelines was 10 SEER (seasonal energy efficiency rating, the metric used to measure energy efficiency). On the effective date, the new standard increased the minimum allowed efficiency to 13 SEER (a 30% improvement in efficiency). The transition of products from the current standard to the new standard took place during 2006, as 13 SEER products were introduced and became fully available to consumers.

Non-U.S. Operations

All of our operations are within the United States. We do not have any international operations. Export sales are less than 1% of total revenues.

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ADDITIONAL INFORMATION

Filings with the Securities and Exchange Commission

As a public company, we regularly file reports and proxy statements with the Securities and Exchange Commission (“SEC”). These reports are required by the Securities Exchange Act of 1934 and include, but are not limited to:

The public may read and copy any of the materials we file with the SEC at the SEC’s Public Reference Room at 100 F. Street N.E., Washington, DC 20549. The public may obtain information on the operation of the Public Reference Room by calling the SEC at 1-800-SEC-0330. The SEC maintains an Internet site at www.sec.gov that contains the reports, proxy and information statements, and other information that we file electronically.

Our Internet website address is www.watsco.com. We make available free of charge on or through the website our SEC filings as soon as reasonably practicable after the materials are electronically filed with the SEC. Other reports filed with the SEC under the Securities Exchange Act of 1934, as amended, are also available including the proxy statements and reports filed by officers and directors under Section 16(a) of that Act. These reports may be found on the website by selecting the option entitled “SEC FILINGS” under the “INVESTOR RELATIONS” area of the website. The information on our website is not incorporated by reference into this Annual Report on Form 10-K.

Corporate Governance

An “Employee Code of Business Ethics and Conduct” is maintained that is applicable to all employees and additionally a “Code of Conduct for Senior Executives” that is applicable to members of the Board of Directors, executive officers and senior operating and financial personnel. These codes require continued observance of high ethical standards such as honesty, integrity and compliance with laws. These codes are publicly available on the website by selecting the option entitled “CODE OF CONDUCT” under the “CAREERS” area of the website. These materials may also be requested in print by writing to Watsco, Inc., Investor Relations, 2665 South Bayshore Drive, Suite 901, Coconut Grove, FL 33133.

Business Risk Factors

Supplier Concentration

We maintain distribution agreements with the key equipment suppliers, either on an exclusive or non-exclusive basis, for terms generally ranging from one to ten years. Certain of the distribution agreements contain provisions that restrict or limit the sale of competitive products in the markets served. Other than the markets where such restrictions and limitations may apply, we may distribute other manufacturers’ lines of air conditioning or heating equipment. Purchases from these suppliers comprised 47% of all purchases made in 2006 with the largest supplier accounting for 17% of all purchases made in 2006. Any significant interruption by the manufacturers or a termination of a distribution agreement could temporarily disrupt the operations of certain subsidiaries. Future results of operations are also materially dependent upon the continued market acceptance of these manufacturers’ products and their ability to continue to manufacture products that comply with laws relating to environmental and efficiency standards.

Competition

We operate in highly competitive environments. We compete with a number of distributors and also with several air conditioning and heating equipment manufacturers that distribute a significant portion of their products through their own distribution organizations in certain markets. Competition within any given geographic market is based upon product availability, customer service, price and quality. Competitive pressures or other factors could cause our products or services to lose market acceptance or result in significant price erosion, all of which would have a material adverse effect on profitability.

Seasonality

Sales of residential central air conditioners, heating equipment and parts and supplies have historically been seasonal. Furthermore, profitability can be impacted favorably or unfavorably based on the severity or mildness of weather patterns during summer or winter selling seasons. Demand related to the residential central air conditioning replacement market is highest in the second and third

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quarters with demand for heating equipment usually highest in the fourth quarter. Demand related to the new construction sectors throughout most of the markets is fairly even during the year except for dependence on housing completions and related weather and economic conditions.

Risks Inherent in Acquisitions

As part of our strategy, we intend to pursue additional acquisitions of complementary businesses. If we complete future acquisitions, we may be required to incur or assume additional debt and/or issue additional shares of our common stock as consideration, which will dilute our existing stockholders’ ownership interest and may affect our results of operations. Growth through acquisitions involves a number of risks, including the following:

Dependence on Key Personnel

We are highly dependent on the skills, experience and services of key personnel. The loss of key personnel could have a material adverse effect on our business, operating results or financial condition. Our potential growth and expansion are expected to place increased demands on our management skills and resources. Therefore, our success also depends upon our ability to recruit, hire, train and retain additional skilled and experienced management personnel. Employment and retention of qualified personnel is important due to the competitive nature of our industry.

General Risk Factors

Goodwill and Intangibles

At December 31, 2006, goodwill and intangibles represented approximately 23% of total assets. Goodwill and indefinite life intangibles are no longer amortized and are subject to impairment testing at least annually using a fair value based approach. The identification and measurement of impairment involves the estimation of the fair value of reporting units. Accounting for impairment contains uncertainty because management must use judgment in determining appropriate assumptions to be used in the measurement of fair value. The estimates of fair value of reporting units are based on the best information available as of the date of the assessment and incorporate management assumptions about expected future cash flows and contemplate other valuation techniques. Future cash flows can be affected by changes in industry or market conditions.

The recoverability of goodwill and indefinite life intangibles is evaluated at least annually and when events or changes in circumstances indicate that the carrying amount of goodwill and indefinite life intangibles may not be recoverable. Although no impairment has been recorded to date, there can be no assurances that future impairments will not occur.

Risks Related to Insurance Coverage

We carry general liability, comprehensive property damage, workers’ compensation and other insurance coverages that management considers adequate for the protection of its assets and operations. There can be no assurance, however, that the coverage limits of such policies will be adequate to cover losses and expenses for lawsuits brought or which may be brought against us. A loss in excess of insurance coverages could have a material adverse effect on our financial position and/or profitability. Certain self-insurance risks for casualty insurance programs and health benefits are retained and reserves are established based on claims filed and estimates of claims incurred but not yet reported. Assurance cannot be provided that actual claims will not exceed present estimates. Exposure to catastrophic losses has been limited by maintaining excess and aggregate liability coverages and implementing loss control programs.

Control by Existing Shareholder

As of December 31, 2006, Albert H. Nahmad, Watsco’s Chairman and Chief Executive Officer, and a limited partnership controlled by him, collectively had beneficial ownership of approximately 57% of the combined voting power of the outstanding Common stock and Class B common stock. Based on Mr. Nahmad’s stock ownership and the stock ownership of the limited partnership controlled by him, Mr. Nahmad has the voting power to elect all but three members of the nine-person Board of Directors and to control most corporate actions requiring shareholder approval.

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Information about Forward-Looking Statements

This Form 10-K contains or incorporates by reference statements that are not historical in nature and that are intended to be, and are hereby identified as, “forward-looking statements” as defined in the Private Securities Litigation Reform Act of 1995, including statements regarding, among other items, (i) business and acquisition strategies, (ii) potential acquisitions, (iii) financing plans and (iv) industry, demographic and other trends affecting Watsco’s financial condition or results of operations. These forward-looking statements are based largely on management’s current expectations and are subject to a number of risks, uncertainties and changes in circumstances, certain of which are beyond their control.

Actual results could differ materially from these forward-looking statements as a result of several factors, including:

In light of these uncertainties, there can be no assurance that the forward-looking information contained herein will be realized or, even if substantially realized, that the information will have the expected consequences to or effects on Watsco or its business or operations. A discussion of certain of these risks and uncertainties that could cause actual results to differ materially from those predicted in such forward-looking statements is included in Watsco’s Annual Report to Shareholders for the fiscal year ended December 31, 2006 in the section captioned “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” which section has been incorporated in the Form 10-K by reference. Forward-looking statements speak only as of the date the statement was made. Watsco assumes no obligation to update forward-looking information or the discussion of such risks and uncertainties to reflect actual results, changes in assumptions or changes in other factors affecting forward-looking information.

None.