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HR Allen is a full-service electrical and mechanical contractor providing estimating, project management, and design build services. Our team of highly trained professionals offers comprehensive solutions for electrical and mechanical construction and maintenance needs, including HVAC, Sheetmetal, Plumbing, Piping, and Insulation. With offices in Charleston, Myrtle Beach, Columbia, and Greenville, we serve South Carolina and surrounding states. Our commitment to excellence ensures that all projects are completed professionally, on time, and on budget.