Electrical · Property Services

Whole-Home Surge Protection

A lightning strike nearby, a utility switching event or a failing neighbor’s appliance can send a spike through your wiring and quietly shorten the life of every electronic device you own. A whole-house surge protector at the panel absorbs much of that energy before it reaches your outlets. NorTech connects you with vetted licensed electricians who set their own price and pull permits where the city requires them.

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What a whole-house protector does and does not do

A surge protective device mounted at the main panel diverts excess voltage to ground before it spreads through the house. It protects the permanently wired items that plug strips cannot, such as the refrigerator, HVAC controls, garage door opener and smart home gear. It is not a battery and cannot keep the lights on during an outage, and a direct lightning hit can still overwhelm any protector. Think of it as the first line of defense, with point-of-use strips as the second for sensitive electronics like computers and televisions.

Choosing a protector and what the electrician checks

Electricians look at the panel brand, the available breaker spaces and the condition of the grounding system, since a protector is only as good as its ground. Models differ in joule rating, response time, clamping voltage and connected-equipment warranty, and some add protection for cable and phone lines. A licensed professional installs the unit with short, straight wiring because long leads reduce effectiveness. Ask which model is used, what the warranty includes and how you will know when the protector has done its job.

Permits, safety and what to expect on the day

The work is done at the main panel, so the electrician will briefly shut off power to the house, usually for an hour or less. Some cities require a permit and an inspection for panel work, and a licensed electrician knows how to handle that. After installation, indicator lights show whether protection is active, and many units alert you when they need replacing after a major event. Keep the model number and warranty paperwork with your home records, and check the lights after any storm.

When to book whole-home surge protection

Your area has frequent thunderstorms or utility power fluctuations.
You own expensive electronics, a home office or smart home equipment.
Appliances or electronics have failed after a power surge.
You are upgrading your panel and want protection added at the same time.
An insurance agent or an inspector recommended surge protection.
You work from home and cannot afford downtime from damaged equipment.
90-Day Warranty
Backed by your provider’s warranty. If covered work fails, your provider makes it right — free.

Looking for a licensed electrician? Bigger jobs and anything that needs a permit go to a verified California C-10 contractor. See licensed electrician services.

Frequently asked

Whole-Home Surge Protection — common questions

Yes, for sensitive electronics. The whole-house device reduces the energy entering the home, and a good strip at the computer or television catches what remains and what originates inside the house.

Most installations take about an hour or two. The power to the house is shut off briefly, so plan ahead for refrigerators, medical equipment and anything with unsaved work.

Many cities treat work in the main panel as permitted work. Your licensed electrician will tell you what applies in your area and arrange any required inspection.

Most units have status lights or alarms. A green light usually means protection is active, while a red light or an alarm means it should be replaced. Check the manual and look after storms.

No, it is a protection device and does not reduce consumption. Its value is in saving money on replacements and avoiding the disruption of failed equipment.

The electrician stands behind the installation work for 90 days, covering wiring and connection faults. The device itself is covered by its maker, often with a connected-equipment guarantee with specific conditions.

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