According to our records, this business is located at 20821 SE 141st Ln. in Umatilla (in Lake County), Florida 32784. W O Thornton Installation is categorized under Fire Alarm Systems and Equipment Testing (SIC code 1731). Current estimates show that the unit has a sales volume of $264,000 and staff of approximately 2 people. You can contact the company by phone at (352) 288-0983.