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Business Details
47 Years
experience
Premier Electrical & Mechanical Contracting Services
Since 1979, H R Allen has established itself as a premier electrical and mechanical contracting firm serving South Carolina and the southeastern United States. Headquartered in Charleston with additional offices in Myrtle Beach, Columbia, and Greenville, our company combines over four decades of industry experience with a team of 200+ skilled professionals. We specialize in delivering full-service solutions for electrical, HVAC, plumbing, piping, and insulation projects, from new construction and renovations to ongoing maintenance. Our commitment to excellence is evidenced by our work on high-profile projects such as the Hollings Cancer Center, Roper Mount Pleasant Hospital, and numerous schools and hotels.

With unlimited bonding capacity and a focus on design-build methodologies, we ensure every project is completed on time, within budget, and to the highest standards of quality. Our long-standing relationships with general contractors, commercial owners, and institutions reflect our dedication to client satisfaction, technical expertise, and adherence to rigorous safety protocols. As a trusted partner in the construction industry, we maintain strong ties with insurance providers, banks, and trade organizations, reinforcing our reputation for reliability and professionalism.
Services
Electrical Contracting Mechanical Contracting HVAC Installation Plumbing Services Piping Systems Insulation Design-Build Renovations Project Management Warranty Support
Details
  • Year established: 1979
Highlights and features
  • We offer over 40 years of specialized expertise in electrical and mechanical contracting.
  • Our 200+ skilled professionals ensure timely, budget-conscious project completion.
  • We provide comprehensive design-build solutions for complex construction needs.
  • Our warranty support guarantees long-term performance of completed projects.
  • We serve diverse sectors including healthcare, education, hospitality, and commercial construction.
What people say
Excellent service Reliable estimates Professional execution Courteous and professional Successful project completion
Services
Electrical Contracting
We provide comprehensive electrical contracting for new construction, renovations, and maintenance. Our services include installation, repair, and warranty support for commercial, healthcare, and educational facilities. With experienced technicians and project managers, we ensure code compliance and long-term system performance.
Mechanical Contracting
Our mechanical contracting covers HVAC, plumbing, piping, and insulation for commercial and industrial clients. We specialize in design-build solutions, certified welding, and medical gas piping. Our team delivers energy-efficient systems with a focus on durability and regulatory compliance for healthcare and institutional facilities.
Design-Build Solutions
We offer integrated design-build services that streamline project planning, fabrication, and installation. This approach ensures cost efficiency and timely delivery while maintaining high-quality standards. Our expertise spans HVAC systems, plumbing infrastructure, and electrical networks for complex commercial developments.
Project Management
Our project management services include estimating, scheduling, and coordination for large-scale electrical and mechanical projects. With unlimited bonding capacity and experienced superintendents, we guarantee adherence to timelines, budgets, and quality benchmarks across healthcare, education, and hospitality sectors.
Renovation Services
We specialize in renovating existing commercial and industrial facilities with minimal disruption. Our services include electrical system modernization, HVAC retrofits, and plumbing upgrades. With extensive experience in historic buildings and critical infrastructure, we balance code compliance with operational continuity for schools and healthcare institutions.
People
Rod Allen
President
With over four decades of leadership, Rod Allen guides our company's strategic direction while maintaining hands-on involvement in major projects and client relationships.
Raymond Munn
Safety Director
Raymond oversees all safety protocols and compliance measures, ensuring our teams and projects meet the highest industry standards for workplace safety and risk management.
Brian Violette
Vice President
Brian manages key operations and client relations, leveraging his extensive experience in mechanical systems to drive project success and business development.
Erik Violette
Vice President
Erik focuses on project execution and technical oversight, ensuring our mechanical contracting services maintain precision and innovation across complex construction assignments.
Questions
What services does H.R. Allen offer?
We provide electrical contracting, mechanical contracting, HVAC installation, plumbing services, piping systems, insulation, design-build solutions, and renovation services.
How long has H.R. Allen been in business?
We've served clients since 1979, delivering construction and maintenance services across South Carolina and the southeastern United States.
Which industries do you work with?
We specialize in healthcare facilities, educational institutions, commercial buildings, hospitality venues, and industrial operations.
Do you handle emergency repair services?
While we focus on planned projects, our service department provides scheduled maintenance and warranty support for completed installations.
What areas do you serve?
Our primary service area includes South Carolina, with capabilities extending to surrounding southeastern states for major projects.
Can you manage large-scale construction projects?
Yes, with unlimited bonding capacity and 200+ professionals, we handle complex projects from initial design through final installation and commissioning.