north & South carolina

Expert Backup Power Installation & Planning
With years of hands-on electrical experience across North and South Carolina, Thomas & Sons Electrical Contractors provides dependable backup power solutions designed to keep your home running during outages. From standby generators and transfer switches to battery backup systems, our licensed electricians ensure your system is sized correctly, installed safely, and ready when you need it most.
Safe, Code-Compliant Power Protection
Backup power systems must be installed properly to protect your home, appliances, and electrical panel. Every backup power solution we install follows NEC standards and all applicable local Carolina codes. You’ll work directly with skilled electricians—not salespeople—who explain your options clearly and install systems that deliver safe, reliable power when the grid goes down.
A Family-Built Commitment to Power Reliability
For generations, reliable electrical power has been at the core of what we do. At Thomas & Sons Electrical Contractors, we approach backup power with the same care, precision, and safety-first mindset as every other service we provide. From generator installations to transfer switches and load management, our team ensures your backup power system is designed to protect what matters most—your home, your family, and your comfort—when the grid goes down.
Designed for Carolina Homes & Real-World Outages
Power outages in North and South Carolina aren’t one-size-fits-all, and neither are backup power systems. Our electricians assess your home’s electrical load, critical circuits, and usage needs to design a solution that makes sense for you. Whether you need partial backup for essentials or whole-home power coverage, we install systems that start reliably, run safely, and integrate seamlessly with your electrical panel—so you’re prepared before the lights go out.

Comprehensive Power Needs Assessment
Understanding Your Home’s Backup Power Requirements
Every backup power project begins with a detailed evaluation of your home’s electrical system and energy needs. We assess your panel capacity, critical circuits, fuel options, and power usage to determine the right solution—whether that’s a standby generator, portable generator connection, or battery backup system. This ensures your backup power is sized correctly and ready when you need it most.
Tailored Backup Power Solutions
Customized Systems Designed for Your Home
No two homes—or power needs—are the same. We design backup power systems based on your lifestyle, home layout, and priorities. From whole-home standby generators to essential-load transfer switches and battery storage solutions, we tailor each system to provide seamless, reliable power during outages without overloading your electrical system.
Precision Installation & Clean Workmanship
Backup Power Installed Right—and Installed Safely
Our licensed electricians install every backup power system with precision, care, and strict attention to safety. We follow NEC standards and local Carolina codes, properly secure wiring, label circuits, and test all components before activation. Once installation is complete, we leave your home clean, organized, and fully operational.
Power Reliability Planning
Keeping Your Backup System Ready for the Long Term
Backup power isn’t just about installation—it’s about reliability over time. We provide guidance on routine maintenance, system testing, fuel management, and future upgrades to ensure your backup power system performs when it matters most. As your home’s needs grow, we help your system grow with it.

"Our house had a direct lightening strike which caused various electrical issues. Thomas &Sons provided a very competitive price, was very professional in replacing the lights and prompt in providing the service."
— Terry Mullins.
We install standby generators, portable generator connections, and manual or automatic transfer switches depending on your needs.
Not always. Many homeowners choose to power only essential circuits like lights, refrigeration, and heating systems.
A transfer switch safely connects your generator to your electrical system and prevents dangerous backfeeding into the grid.
Yes. We evaluate your panel and install the correct transfer equipment to integrate the system safely.
Automatic systems restore power without intervention, while manual systems require setup. The right choice depends on your priorities and budget.
Most installations are completed in one day, depending on the system type and electrical setup.
Yes. We handle permits and ensure all work meets local and NEC code requirements.
When installed correctly, they protect your equipment rather than harm it.
Yes. We test the system thoroughly and walk you through how it works before leaving.
Absolutely. We regularly install backup systems in older homes after a safety evaluation.
Toronto Headquarters
1914 Loggerhead Dr. Lancaster, SC 29720
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Call: +1 980 236-1675