MECHANICAL, ELECTRICAL & PLUMBING CONTRACTORS SPECIALIZING IN TEMPERATURE CONTROLLED ENVIRONMENTS Standard Refrigeration Co., Inc. or Standard, as it is widely known, is a private company incorporated under the laws of Puerto Rico in 1947. 70 YEARS of steady growth and an innovative and visionary approach to construction has made our Company the most experienced Mechanical and Electrical Contractors of Puerto Rico. Standard is a proudly owned Family Business with 1st and 2nd Generation Partners at the Helm. We specialize in Mechanical, Electrical and Plumbing Construction of Commercial, Industrial, Office and Hospitality Structures.