Whole-Home
Surge Protection
One power surge can destroy your HVAC system, appliances, and electronics in an instant. A whole-home surge protector installed at your main panel shields everything — all at once.
Serving Jacksonville, St. Johns, Nassau, Clay & Flagler Counties.
Why Surge Protection Matters in Northeast Florida
Florida leads the nation in lightning strikes. But lightning isn't the only threat — your home faces voltage spikes every single day.
Lightning Strikes
Northeast Florida is one of the most lightning-prone regions in the country. A single nearby strike can send thousands of volts through your home's wiring in milliseconds.
Utility Grid Fluctuations
Power company switching, transformer faults, and grid restoration after outages all create voltage spikes that travel directly into your home.
Internal Surges
Large appliances like AC units, refrigerators, and pool pumps generate small surges every time they cycle on and off — slowly degrading sensitive electronics over time.
Smart Home & Electronics
Modern homes are packed with smart TVs, computers, smart thermostats, and security systems — all vulnerable to even minor voltage spikes.
How Whole-Home Surge Protection Works
A whole-home surge protector — also called a service entrance surge protector or Type 1/Type 2 SPD — is installed directly at your main electrical panel. When a voltage spike enters your home from the utility line or from a nearby lightning strike, the device clamps the voltage and diverts the excess energy safely to ground before it can reach your wiring, appliances, or electronics.
Unlike a power strip that only protects what's plugged into it, a panel-level device protects every circuit in your home simultaneously — including your HVAC system, water heater, refrigerator, washer/dryer, and all hardwired devices.
What's Included With Our Installation
- Protects your entire home from a single installation point at the main panel
- Covers HVAC systems, appliances, electronics, and smart devices simultaneously
- Works alongside — not instead of — individual point-of-use surge strips
- Rated for thousands of joules of surge energy absorption
- Meets NEC (National Electrical Code) requirements for whole-home protection
- Installed by licensed, insured electricians — no DIY guesswork
Why Homeowners Choose Double A
Licensed & Insured
Every technician is fully licensed, insured, and background-checked. Electrical work done right the first time.
Same-Day Service
Most calls are handled same day. We know you can't wait days for electrical work — we don't make you.
Family Owned & Local
Double A has served Northeast Florida homeowners since 2003. We live here too — your home matters to us.
Upfront Pricing
No surprise charges. We give you a clear price before any work begins so you can make a confident decision.
Frequently Asked Questions
What is whole-home surge protection?
A whole-home surge protector (also called a service entrance surge protector) is installed at your main electrical panel. It intercepts voltage spikes before they can travel through your home's wiring and damage appliances or electronics.
Do I still need power strips with surge protection?
Whole-home protection and point-of-use surge strips work best together. The panel-level device handles large external surges; individual strips provide a second layer of protection for sensitive electronics like computers and TVs.
How long does installation take?
Most whole-home surge protector installations take 1–2 hours. Our electrician will inspect your panel, install the device, and test it before leaving.
Will it protect my HVAC system?
Yes. Your AC unit, heat pump, and air handler are all connected to your home's electrical system and are protected by a properly installed whole-home surge protector. HVAC systems are among the most expensive items in your home to replace — protecting them is a smart investment.
Is surge protection required by code in Florida?
The 2020 NEC (adopted in Florida) recommends surge protection at the service entrance for new construction and major renovations. Regardless of code requirements, it's one of the most cost-effective ways to protect your home's electrical investment.
Related Electrical Services
Protect Your Home Before the Next Storm
One installation. Every circuit protected. Call Double A today for same-day service across Northeast Florida.