Dan's Air Conditioning has been in business for 72 years and is now a 4th generation owned company.  The family business was started in Hawaii in the year of 1950, by the owner and patriarch, Daniel Castro Sr.  Daniel worked at Pearl Harbor during and after World War II as a refrigeration apprentice mechanic, he then became the supervisor for the air conditioning & refrigeration maintenance division at Schofield Barracks for the United States Army on the island of O'ahu.