v3.26.3
Document And Entity Information
Sep. 12, 2026
Document Information [Line Items]  
Document Type 8-K/A
Amendment Flag true
Document Period End Date Sep. 12, 2026
Entity Registrant Name WATSCO, INC.
Entity Central Index Key 0000105016
Entity Emerging Growth Company false
Entity File Number 1-5581
Entity Incorporation, State or Country Code FL
Entity Tax Identification Number 59-0778222
Entity Address, Address Line One 2665 South Bayshore Drive
Entity Address, Address Line Two Suite 901
Entity Address, City or Town Miami
Entity Address, State or Province FL
Entity Address, Postal Zip Code 33133
City Area Code (305)
Local Phone Number 714-4100
Entity Information, Former Legal or Registered Name N/A
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Amendment Description This Current Report on Form 8-K/A (this “Amendment”) is being filed as an amendment to the Current Report on Form 8-K filed by Watsco, Inc., a Florida corporation (the “Company”), with the Securities and Exchange Commission on September 17, 2026 (the “Original Form 8-K”). As previously reported in the Original Form 8-K, the Company disclosed an estimated number of Consideration Shares to be issued at the Closing of the Mergers (as such terms are defined in the Original Form 8-K and below), and this Amendment is being filed to update the disclosure contained in Item 3.02 of the Original Form 8-K solely to provide the precise number of Consideration Shares issued at Closing, which occurred on October 9, 2026. Except as set forth in this Amendment, the disclosure contained in the Original Form 8-K remains unchanged.
Common Class B [Member]  
Document Information [Line Items]  
Title of 12(b) Security Class B common stock, $0.50 par value
Trading Symbol WSOB
Security Exchange Name NYSE
Common Stock [Member]  
Document Information [Line Items]  
Title of 12(b) Security Common stock, $0.50 par value
Trading Symbol WSO
Security Exchange Name NYSE