06/06/2026
What is a Whole-House Surge Protector? 06/06/26
A whole-house surge protector is a hardwired device installed at your main electrical panel that intercepts dangerous voltage spikes, diverting excess energy safely into the ground before it reaches your household electronics.
1) These offer comprehensive protection, safeguarding large, expensive appliances such as HVAC systems, refrigerator, washer/dryer. They protect smart electronics that standard power strips cannot (TV & computers).
2) These surge protectors offer layered defense. While it handles massive external surges such as lightning or grid switching, experts still recommend combining it with point of use surge strips for ultimate safety.
3) Mandatory code compliance. The National Electrical Code (NEC) requires whole-house surge protection on all new and upgraded residential services. This became a national code recommendation 6 years ago and became a Hall County code requirement 5 years ago.
4) The cost for a whole-house surge protector varies by brand and amperage. They can range anywhere from $40 to $400. The standard offering runs about $150. Because it requires working directly inside a live electrical panel, professional installation is highly recommended and will typically add another $200-$300 to the cost.
And NOW YOU KNOW!