Exhibit 99.1

Watsco Sets Records for Sales, Net Income, EPS, Cash Flow &

Boosts Annual Dividend 21% to $3.40 Per Share

MIAMI, FLORIDA – (BUSINESS WIRE), October 27, 2015 – Watsco, Inc. (NYSE: WSO) reported record results for the third quarter and for the nine months ended September 30, 2015.

Third Quarter Results

Sales trends:

Key performance metrics:

Albert Nahmad, Watsco’s President & Chief Executive Officer stated: “Watsco delivered another solid quarter of performance driven by sales growth, share gains, improved selling margins and expanded operating margins. We also generated more cash flow this quarter than in any other quarter in our history. We experienced healthy sales growth for residential HVAC systems in the United States from strong unit growth and the continued trend toward higher-efficiency systems.”

Mr. Nahmad added: “We are also pleased to increase Watsco’s annual dividend to $3.40 per share beginning in January. As evidenced by our long-term track record, we have confidence that our business can produce meaningful earnings growth and cash flow. It is always our intention to share cash flow through increasing dividends while retaining the ability to invest in our network and evaluate additional opportunities that come our way.”

Nine-Month Results

Sales trends:

Key performance metrics:

Technology Strategy

Watsco has established itself as the leader in the HVAC distribution industry and produced a 20% compounded annual total-shareholder-return over the last 25 years.

Watsco is currently building on this growth and is actively increasing its investment in a number of scalable technologies. The goals of the strategy are to further strengthen Watsco’s leadership position in the marketplace, accelerate sales and profit growth through innovation, increase the speed, convenience and efficiency in serving customers and to extend Watsco’s reach into new geographies and sales channels. Watsco believes its scale and large number of locations for product fulfillment relative to its competitors offer an advantage as the digital marketplace progresses.

Since 2012, Watsco has grown its technology team from approximately 60 employees to over 170 employees while achieving record levels of operating performance. The 2015 nine-month financial performance reflects an increase of $5.4 million, or 64%, in technology-related costs (10 cents per share for the nine-month period and 4 cents per share for the third quarter).

Examples of innovations that Watsco has created to enhance the buying experience for its 88,000 customers and the service capabilities of personnel at its 567 locations:

The present annual run-rate for costs associated with these initiatives is approximately $20 million. The Company will discuss its technology strategy at its upcoming annual investor and analyst meeting on December 18, 2015.

Cash Flow & Dividends

For the third quarter, operating cash flow was a record $174 million versus $107 million same period last year. For the nine-month period, operating cash flow increased to $100 million compared to $42 million in 2014. The Company expects further seasonal increases in operating cash flow during the fourth quarter and to achieve its continuing annual goal of producing operating cash flow equal to net income.

Watsco announced today that its Board of Directors approved a 21% increase in the annual dividend rate to $3.40 per share, which will be reflected in the Company’s next regular dividend declaration in January 2016.

Revised Outlook for 2015

Watsco’s revised outlook for 2015 diluted earnings per share is growth of 12% to 13%, or approximately $4.85 to $4.90 per share.

Conference Call Information

Date: October 27, 2015

Time: 10:00 a.m. (EDT)

Webcast: http://investors.watsco.com

Dial-in number: United States (866) 777-2509 / International (412) 317-5413

A replay of the conference call will be available on the Company’s website.

About Watsco

Watsco improves indoor living and working environments with air conditioning and heating solutions that provide comfort regardless of the outdoor climate. There are approximately 89 million central air conditioning

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and heating systems installed in the United States that have been in service for more than 10 years. Older systems often operate below today’s government mandated energy efficiency and environmental standards. Watsco has an opportunity to accelerate the replacement of these systems at a scale greater than our competitors as the movement toward reducing energy consumption and its environmental impact continues. This is especially important since heating and cooling accounts for approximately half of the energy consumed in a typical U.S. home.

Watsco’s traditional sales channel is the sale of products from one of its 567 locations in the United States, Canada, Mexico and Puerto Rico, and on an export basis to Latin America and the Caribbean. This network has been built over the last 25 years and serves 88,000 active customers. Watsco is developing and investing in technologies to enable sales via e-commerce, on-line marketplaces and through the retail sales channel. As the industry leader, significant growth potential remains given that the estimated marketplace for HVAC/R products at the consumer level is estimated to be $80 billion. Additional information about Watsco may be found at http://www.watsco.com.

Forward-Looking Statements

This document 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. Statements which are not historical in nature, including the words “anticipate,” “estimate,” “could,” “should,” “may,” “plan,” “seek,” “expect,” “believe,” “intend,” “target,” “will,” “project,” “focused,” “outlook” and variations of these words and negatives thereof and similar expressions are intended to identify forward-looking statements, including statements regarding, among others, (i) economic conditions, (ii) business and acquisition strategies, (iii) potential acquisitions and/or joint ventures, (iv) financing plans and (v) industry, demographic and other trends affecting our financial condition or results of operations. These forward-looking statements are based on management’s current expectations, are not guarantees of future performance and are subject to a number of risks, uncertainties and changes in circumstances, certain of which are beyond our control. Actual results could differ materially from these forward-looking statements as a result of several factors, including, but not limited to general economic conditions, competitive factors within the HVAC/R industry, effects of supplier concentration, fluctuations in certain commodity costs, consumer spending, consumer debt levels, new housing starts and completions, capital spending in the commercial construction market, access to liquidity needed for operations, seasonal nature of product sales, weather conditions, insurance coverage risks, federal, state and local regulations impacting our industry and products, prevailing interest rates, foreign currency exchange rate fluctuations, international political risk, cybersecurity risk and the continued viability of our business strategy.

We believe these forward-looking statements are reasonable; however, you should not place undue reliance on any forward-looking statements, which are based on current expectations. For additional information regarding other important factors that may affect our operations and could cause actual results to vary materially from those anticipated in the forward-looking statements see the discussion included in Item 1A “Risk Factors” of our most recent Annual Report on Form 10-K, as well as the other documents and reports that we file with the SEC. Forward-looking statements speak only as of the date the statement was made. We assume 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, except as required by applicable law. We qualify any and all of our forward-looking statements by these cautionary factors.

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WATSCO, INC.

Condensed Consolidated Results of Operations

(In thousands, except per share data)

(Unaudited)

Note: Reference in this press release to ‘total-shareholder-return’ reflects market appreciation of Watsco’s common stock and dividends.

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WATSCO, INC.

Condensed Consolidated Balance Sheets

(Unaudited, in thousands)

WATSCO, INC.

Condensed Consolidated Statements of Cash Flows

(Unaudited, in thousands)

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