H.R. Allen, Inc, established in 1979 in Charleston, SC, is a full service Electrical and Mechanical Contractor with offices in Charleston, Columbia, and Piedmont, SC. Each office provides electrical service while Charleston provides mechanical services as well. H. R. Allen, Inc. is also licensed as an electrical contractor in Georgia and North Carolina.

The firm’s principals, Herbert R. Allen, Sr., P.E. and Herbert R. Allen, Jr., P.E., have a combined fifty years experience in the industry. Our staff of more than 200 full time employees includeing several key people who have been with the company since its inception in 1979. These senior managers, superintendents and project managers provide a wealth of institutional, technical knowledge and field experience making H.R. Allen, Inc. a leading provider for electrical and mechanical services in South Carolina.

During our over 35 years of operation we have completed hundreds of projects totaling more the $750 million. Examples of our work include manufacturing plants, schools, nursing homes, waste water facilities, hospitals, data centers, and indoor/outdoor lighting systems.

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