Whole-House Surge Protection
Installed at your main panel, whole-house surge protection covers every circuit in your home, not just whatever’s plugged into one strip.
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How Whole-House Surge Protection Works
A whole-house surge protector installs directly at your main electrical panel and monitors every circuit in your home, cutting off or absorbing a voltage spike before it reaches your outlets, appliances, and hardwired electronics. It’s a different layer of protection than a plug-in power strip, which only protects whatever’s plugged directly into it.
This is licensed electrical work, since it involves your main panel. We size and install a device rated for your home’s electrical service, then test it to confirm it’s actually functioning correctly, not just installed.
Is Whole-House Surge Protection Worth It for You?
A few situations make this upgrade especially worth considering:
Your area experiences frequent lightning or severe storms
You've noticed flickers or brief power interruptions from utility grid switching
You have expensive electronics, appliances, or a home theater setup
You've had an appliance damaged by a surge before
You have a solar or battery storage system, which adds sensitive electronics to protect
Your neighborhood has older grid infrastructure
Plug-In Strip vs. Whole-House Surge Protection
These solve different problems, and most homes benefit from having both:
Plug-In Surge Strip
Whole-House Surge Protection
Protects
One device plugged into it.
Every circuit in your home.
Installed
At the outlet.
At your main electrical panel.
Typical Use
A single computer or TV setup.
HVAC, appliances, electronics, and anything hardwired.
It Doesn't Just Help During a Storm
Lightning is the obvious trigger people think of, but it’s far from the only cause of a damaging power surge. Utility grid switching, equipment issues on your street, and even large appliances in your own home cycling on and off can all send a voltage spike through your system.
That’s why whole-house surge protection has value even in areas that don’t see much lightning, it’s protecting against a wider range of everyday electrical events, not just the dramatic ones.
Our Installation Process
1
Panel Assessment
We confirm your panel’s capacity and the right surge protector rating for your home’s service.
2
Permit (if required)
We handle any permit requirement, which is typically minimal for this scope of work.
3
Installation at the Panel
We install the surge protection device directly at your main panel.
4
Testing
We test the installation to confirm it’s functioning correctly before we leave.
Permits for Surge Protection Installation: Permit requirements for adding a surge protector to an existing panel are typically minimal in most California jurisdictions, since it doesn’t change your service size. We’ll confirm what applies to your specific city before starting.
What Affects Surge Protection Pricing
Pricing depends mainly on your panel’s service size and the surge protector rating that matches it.
For most homes with any meaningful investment in appliances or electronics, whole-house surge protection is worth it: the upfront cost is small compared to replacing a damaged HVAC control board, refrigerator, or home theater system, and unlike a plug-in strip, it protects everything hardwired into your home at once, including things you can’t unplug and move out of harm’s way.
Whole-House Surge Protection
From $200
Whole-house surge protection from $200.
Proven on a Real Surge Protection Installation
“Installed a whole-home surge protector right at the main panel. Total peace of mind for our expensive electronics.”
Monica Y.
“Installed a whole-home surge protector right at the main panel. Total peace of mind for our expensive electronics.”
Monica Y.
Frequently Asked Questions
Does it help during a power outage?
Not directly, surge protection guards against voltage spikes, not the loss of power itself. It can help protect your equipment from a damaging surge when power is restored after an outage, though.
Can it be added to an existing panel?
Yes, in most cases. We assess your specific panel during the visit to confirm.
How long do surge protectors last?
Most whole-house units are rated for many years of service, but a major surge event can use up their protective capacity. We can check a unit’s condition as part of a safety inspection.
What's not covered by surge protection?
It doesn’t protect against a direct lightning strike to the home, physical damage, or issues unrelated to voltage spikes, like a wiring fault.
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