Great Security, LLC is dedicated to the professional installation and service of security systems. We provide our customers with the great security tools needed for their protection and peace of mind, so they can focus on optimizing their life, business, and positively impacting their community. 

Great Security is a family-owned business based in the Charleston area since 2010. It started with our parent company nearly 40 years ago in Columbia. Today, we proudly serve the entire state of South Carolina with our excellent security systems and services.

We are committed to developing strong, long-term relationships with our clients, while providing the latest technology and best products and services. We can help you protect your most loved possessions – your family, property, and business.

Our team and professional installation technicians work with you one-on-one to customize a security solution that meets your needs. We have top-quality equipment, professional installation, provide 24/7 services, repairs, and replacements, 24/7 alert monitoring, and 24/7 video recording.



  • William, Owner and President
  • Nikki, Marketing Director
  • Richard, Licensed Professional Installation Technician
  • Paul, Licensed Professional Installation Technician 

Our beliefs translate into our

unmatched service.

  • To provide a great service and product, we must be a great servant. 

  • We are a Golden Rule company. We have your best interest in mind and there for you when you need us.   
  • Long term customer relationships beat quick sales -- this keeps our prices affordable and our services and product quality high. 



OUR Service Philosophy

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