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Killer Electric
Ann Arbor • Ypsilanti • Saline • Dexter
Whole Home Surge Protector

Protect Your Whole Home From Surges & Brownouts

One device at your electrical panel can help defend every circuit in your home — HVAC, fridge, washer/dryer, TVs, computers, and today’s smart devices — from damaging voltage spikes and unstable power.

Serving Ann Arbor, Ypsilanti, Saline, Dexter & surrounding areas.

What Is a Whole-Home Surge Protector?

Surge protection at the source

A whole-home surge protector (often called a “Type 2 surge protective device”) mounts at your main electrical panel and is designed to clamp high-voltage spikes before they travel through your home’s wiring.

  • Protects all circuits downstream of the panel
  • Pairs best with point-of-use protectors for sensitive electronics
  • Works continuously — no “turning it on” or remembering anything

What it protects (real life)

Modern homes have more boards, sensors, and microchips than ever. A surge doesn’t need to be a direct lightning strike to cause damage — smaller spikes can degrade equipment over time.

  • Furnace & AC control boards
  • Refrigerator & freezer electronics
  • Ranges, dishwashers, microwaves
  • Garage door openers
  • Computers, TVs, gaming systems
  • Smart switches, smart locks, cameras, Wi-Fi gear

What it does (plain English)

When the utility power becomes “too hot” for a moment, the surge protector reacts by diverting/clamping that excess energy. It helps reduce the severity of what reaches your appliances.

Important: No surge device can protect against every possible event (especially direct lightning). But whole-home surge protection is one of the best “big wins” you can add to your panel for day-to-day risk.

Why It Matters (and What You’re Actually Protecting)

Homes are packed with sensitive electronics — not just TVs and computers, but HVAC control boards, smart devices, and modern appliances. At the same time, power events like outages, switching, and voltage dips/spikes happen in real life. A whole-home surge protector helps reduce the risk of expensive damage across your entire panel.

Power events that cause damage

  • Outages & restoration surges (power cycling, re-energizing lines)
  • Utility switching and maintenance events
  • Brownouts / undervoltage (especially hard on motors and compressors)
  • “Dirty power” spikes from neighborhood load changes
  • Heavier grid load (EV charging + large loads like data centers)
The point isn’t fear — it’s realism: power quality isn’t always perfect, and your home has a lot to lose.

Smart home & connectivity

  • Mesh Wi-Fi routers + extenders
  • Smart switches/dimmers
  • Smart thermostats
  • Doorbells, cameras, NVRs
  • Smart locks & garage controls
  • Voice assistants & hubs

Appliances & major equipment

  • Furnace & AC control boards
  • Heat pumps / mini-splits
  • Refrigerators
  • Ranges / ovens
  • Washers / dryers
  • Dishwashers

Home office & entertainment

  • Computers + monitors
  • TVs + sound systems
  • Gaming consoles
  • NAS / backup drives
  • Home theater receivers
  • Chargers for everything
Reality check: Plug-in power strips help on a single outlet, but they don’t cover hardwired equipment (HVAC, dishwashers, ranges) and they don’t protect the entire electrical system the way a panel-mounted device can.

Think of It Like Insurance for Your Appliances

The simple comparison

People don’t question car insurance — even if they never file a claim — because the loss could be huge. A whole-home surge protector is similar: a relatively small, one-time cost to reduce the risk of expensive damage.

  • Car insurance protects a $20k–$30k asset
  • Your home has thousands in appliances + electronics
  • Many surge devices include a connected equipment warranty (amount varies by model/brand)

Example: 10-year mindset

Over a decade, most homes will go through storms, outages, utility switching events, and a growing pile of smart devices. Surge protection helps you avoid “death by a thousand cuts” to electronics (and the occasional big hit).

Important: Warranty coverage (often advertised up to large numbers like $50k–$500k) is dependent on the specific surge protector model and its warranty terms (registration, proper installation, claim process, exclusions). We can recommend a product and walk you through the fine print.

What you get (typical install)

  • Panel-mounted whole-home surge protector
  • Code-compliant installation
  • Labeling + quick walkthrough
  • Recommendation for sensitive electronics (optional point-of-use protection)

Surge Protector FAQs

Is a whole-home surge protector “worth it”?

If you have central air/heat, modern appliances, a home office, or any smart home equipment, it’s one of the best cost-to-risk upgrades you can make at your panel.

Does it protect against lightning?

It can help reduce damage from nearby lightning-related surges, but no surge device can guarantee protection against a direct strike. Whole-home + good grounding + point-of-use protection is the best overall approach.

Do I still need power strips?

For sensitive electronics, yes. Think “layered protection”: whole-home for your entire system, and outlet-level protection for TVs/computers/AV equipment.

How long does installation take?

Many installs can be completed in a single visit. We’ll confirm compatibility with your panel and the best placement for your setup.

Get a Fast Quote for Surge Protection

Text a photo of your electrical panel and your address to 734-274-9106, or email details.

Tip: include your panel brand (Square D, Siemens, Eaton, etc.) if you know it.