Electrical & Mechanical Contractors

HR Allen, Inc is a full service electrical and mechanical contractor headquartered in Charleston, with offices in Columbia and Greenville serving South Carolina and surrounding states. Our staff of highly trained estimating and project management personnel combined with unlimited bonding capacity ensures that we are capable of undertaking and completing any size project professionally, on time and on budget.

We have over 200 employees providing electrical and mechanical construction and maintenance services to hospitals, schools, hotels and recreation facilities and distribution centers. When looking for a company that will provide a construction experience that is  completed professionally, on time, and on budget, HR Allen is the company you want.


"It gives me great pleasure to offer this letter of reference for H.R. Allen, Inc.  The company had performed excellent service to Richland District One on each project awarded.  The projects include Lower Richland and Dreher High Schools, and Hopkins, Alcorn and W. G. Sanders Middle Schools.  Estimates and schedules have been thorough and in line with overall projects along with adequate staffing.  H.R. Allen   has always been courteous and professional when called upon, to include the project managers assigned to various projects."


~Raymond A. Perkins, Jr.
Richland One School District, SC