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.


"I am writing this letter to personally thank you and Andy for the outstanding job at Lugoff-Elgin Middle School.  Both you and Andy, with the help of all your staff, did an outstanding job.  I look forward to working with this outstanding team in the near future."

~Jim Royster
Martin Engineering