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Business Details
21 Years
experience
Your Trusted Partner for Construction Solutions in Charleston, SC
Founded in 2005 by President Ron McCollum and Vice President Andy Moody, CSG Charleston (CSG) is a family-owned general contracting firm licensed in South Carolina and North Carolina. As a Service-Disabled Veteran Owned Small Business, we prioritize quality craftsmanship, attention to detail, and customer satisfaction. Our team of over 40 employees, including 40% U.S. Military Veterans, delivers expertise across healthcare, industrial, retail, and institutional construction.

Recognized with HIRE Vets Medallions, we combine military discipline with industry-leading practices to complete 553+ projects since inception. Our services include design-build, commercial renovations, and pre-engineered metal building construction, supported by a commitment to safety, transparency, and community impact. With offices in Charleston, SC, we serve government and private sectors across the Southeast, maintaining full insurance and bonding for client security.
Services
Healthcare Construction Industrial Construction Concrete Services Trucking Services Institutional Construction Retail Construction Metal Building Erection
Details
  • Year established: 2005
Highlights and features
  • We have over 20 years of experience in commercial and industrial construction.
  • Our company is a certified Service-Disabled Veteran Owned Small Business.
  • We are certified Construction Managers at Risk with specialized project delivery expertise.
  • We have completed 553+ projects across the Southeast region.
  • Our team includes 40% U.S. Military Veterans with proven leadership skills.
Associations and certifications
  • CVE Certified Service-Disabled Veteran Owned Small Business
  • HIRE Vets Gold Medallion
  • HIRE Vets Platinum Medallion
What people say
Family-oriented company Treated like family Ethical decision-making Veteran-friendly workplace Proven leadership skills
Services
Healthcare Construction
We deliver turnkey healthcare construction solutions for hospitals, clinics, and research centers. Our team creates environments that promote healing while meeting strict regulatory standards. With specialized expertise in occupied facility construction, we ensure minimal disruption to ongoing operations while maintaining safety and compliance.
Industrial Construction
Our industrial construction services cover site selection through final build-out. We meet demanding manufacturing and logistics requirements with precision engineering and durable materials. Clients benefit from our ability to handle complex infrastructure needs while maintaining strict timelines and budgets.
Concrete Services
We provide full-scale concrete solutions including foundations, slabs, and tilt-up walls. Our civil division combines advanced techniques with quality materials to create structures that withstand environmental stresses. Every project receives rigorous quality control to ensure long-term structural integrity.
Trucking Services
Our fleet of Tri-Axle and Quad-Axle dump trucks delivers reliable hauling services across the Lowcountry. With an impeccable safety record, we offer efficient material transport for construction projects of all sizes while maintaining strict schedule adherence and cost control.
Metal Building Erection
We specialize in erecting pre-engineered metal buildings for commercial, industrial, and agricultural use. Our team ensures rapid assembly without compromising durability or energy efficiency. Clients receive cost-effective solutions that balance flexibility with long-term performance requirements.
People
Ron McCollum
President
Founder and President of CSG, Ron McCollum leads with military discipline and construction expertise. A service-disabled veteran, he built the company from the ground up while maintaining a family-oriented culture that values integrity and client satisfaction above all.
Andy Moody
Vice President
As Vice President, Andy Moody oversees daily operations and project execution. With extensive industry experience, he ensures every project meets CSG's high standards for quality and safety while maintaining the company's commitment to veteran hiring and community service.
Denny Doggett
Estimator/Project Manager
Denny Doggett brings construction expertise to CSG's estimating and project management teams. He emphasizes the company's family culture and client-focused approach, ensuring projects balance technical precision with personalized service that meets owner expectations.
Kevan Gregg
Project Manager
Kevan Gregg contributes to CSG's project delivery with field and office coordination skills. He highlights the company's ethical decision-making and employee support systems, which create a collaborative environment focused on long-term client relationships and professional growth.
Heather Popielarz
Administrative Manager
Heather Popielarz manages administrative operations while emphasizing CSG's veteran-friendly workplace. As a military veteran herself, she ensures the company maintains its values-driven culture that mirrors military camaraderie while supporting both employee and client needs.
Questions
What construction services does CSG offer?
CSG provides healthcare, industrial, retail, and institutional construction services, including design-build, concrete work, trucking, and pre-engineered metal building erection across the Southeast.
How long has CSG been in business?
Construction Services Group has operated since 2005, completing over 553 projects with a focus on quality and client satisfaction.
Is CSG a veteran-owned business?
Yes, CSG is a Service-Disabled Veteran Owned Small Business certified by the CVE program, with 40% of employees being U.S. Military Veterans.
What areas does CSG serve?
CSG operates throughout the Southeast United States, with headquarters in Charleston, SC serving both government and private sector clients.
What are CSG's office hours?
CSG's Charleston office is open Monday-Thursday 7:30 AM-5:30 PM and Friday 7:30 AM-11:30 AM for client consultations and project coordination.