Whole-House Surge Protection

Panel-level protection against grid and storm surges for your whole home.

What Whole-House Surge Protection Is

A whole-house surge protector mounts at or beside your main panel and clamps voltage spikes before they spread to your circuits. Unlike a plug-in strip, which only guards what’s plugged into it, a panel-level device protects everything in the house at once — HVAC boards, appliances, and electronics. A single large surge can damage several of those at the same time, which is what makes one panel device such inexpensive insurance.

Why You'd Want One

Surges come from far more than lightning. Utility grid switching, large appliances cycling on and off, and nearby faults all send spikes down your wiring, day in and day out. Homes full of electronics, sensitive HVAC and appliance control boards, and EV equipment have a great deal to lose. If you’ve had unexplained electronics failures before, or simply want to protect a modern, device-heavy home, panel-level protection is the foundational first layer.

A home full of electronics and appliances

Sensitive HVAC or appliance control boards

An area prone to storms or grid switching

Past unexplained electronics failures

EV charging or a recent panel upgrade

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How It's Installed

The electrician installs a properly rated Type 2 device at or right beside the main panel, wired with short, direct leads so it responds as fast as physically possible. It’s paired, ideally, with point-of-use protection on the most sensitive electronics for a layered defense. The work itself is quick, and it’s permitted and inspected where required. The result is whole-home coverage that a loose collection of plug-in strips simply can’t match.

Select a properly rated Type 2 device

Mount at or beside the main panel

Wire with short, direct leads

Add point-of-use protection; test

What Affects the Cost

Whole-house surge protection is genuinely one of the more affordable electrical upgrades. Cost depends on the device’s rating and features, your panel type and the available space inside it, and whether a permit is required locally. Adding point-of-use protectors for sensitive equipment adds a little more. Compared with replacing electronics, HVAC boards, and appliances after a single bad surge, it’s modest indeed. We provide a firm written quote with upfront pricing.

Whole-House vs Power Strips

Power strips only protect the one device plugged into them, and they do nothing at all for hardwired equipment like your furnace, range, or EV charger. A whole-house protector instead defends every circuit right at the panel, including those hardwired loads. The best approach is layered: a panel-level device as the first line, plus point-of-use protection on your most delicate electronics. One without the other always leaves an obvious gap in coverage.

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Related Surge Protector Installation Services

Fire Alarm Installation

Interconnected fire alarm systems, installed.

Smoke Detector Installation

Hardwired, interconnected smoke and CO alarms.

Electrical Troubleshooting

Diagnose flickers, dead outlets, and trips.

Electrical Safety Inspection

Full system inspection with a written report.

All Electrical Panels services

All electrical services

Where We Work

Blue Moon Electrical serves homes and businesses across California, Texas, Washington, and New Jersey.

Surge Protector Installation FAQs

Common questions about cost, timing, and permits for a panel upgrade.

Q. What does a whole-house surge protector actually protect against?

It clamps voltage spikes before they reach your circuits — from utility grid switching, nearby faults, large appliances cycling, and storms. That protects hardwired equipment and electronics throughout the home, not just what’s on a power strip.

Q. Do I still need power strips with surge protection?

Yes, ideally. A panel-level device is the first layer; point-of-use protectors add a second layer on your most sensitive electronics. Together they provide layered defense that either alone can’t.

Q. Is a whole-house surge protector worth it?

For a modern home full of electronics, HVAC boards, and appliances, it’s inexpensive relative to what one large surge can destroy. It’s widely considered a foundational protection upgrade.

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