Whole-Home
Surge Protection
Protect every appliance, device, and circuit in your home from damaging voltage spikes. A panel-mounted surge protector is the single most cost-effective upgrade you can make to your electrical system.
What Is Whole-Home Surge Protection?
A whole-home surge protector (technically a Surge Protective Device, or SPD) is installed directly at your main electrical panel. When a voltage spike occurs — from lightning, a utility switching event, or a large motor cycling on and off in your home — the SPD absorbs or diverts the excess energy before it reaches your circuits and connected devices.
Unlike a basic power bar, a whole-home SPD protects every outlet, switch, and hardwired appliance in your home simultaneously — including your furnace, central air conditioner, refrigerator, dishwasher, EV charger, and any other appliance that doesn't plug into a power bar.
What Causes Power Surges?
Most people think of lightning as the primary surge risk — and while a direct lightning strike can be catastrophic, it's actually relatively rare. The surges that damage electronics over time are more often caused by:
- Utility grid switching: Hydro One and Toronto Hydro routinely switch power between substations and lines, creating momentary voltage fluctuations on every connected home.
- Large appliances: When motors in refrigerators, air conditioners, and sump pumps start or stop, they generate small internal surges on the same circuits.
- Nearby lightning strikes: Even a strike several kilometres away can send a surge through the utility lines to your home.
- Downed power lines: Utility faults and transformer failures can cause significant overvoltage events.
The cumulative effect of repeated small surges is called electrical stress — it gradually degrades sensitive electronics, shortens appliance lifespans, and can eventually cause premature failure of your TV, computer, smart home devices, and even your HVAC system's control board.
What's Included in Our Surge Protection Installation
- Selection of an appropriately rated SPD for your panel size and application
- Installation inside your main electrical panel by a licensed electrician
- ESA permit where required
- Testing and commissioning
- Explanation of the unit's status indicators and replacement indicators
Recommended Add-On: Point-of-Use Protection
For maximum protection, we recommend combining panel-level SPD protection with point-of-use surge protectors on sensitive electronics like home theatre systems, computers, and network equipment. The panel SPD handles large surges; quality point-of-use strips handle any residual voltage that passes through. Together they form a layered defense.
Frequently Paired Services
Whole-home surge protection is often installed alongside a panel upgrade, new EV charger installation, or as a recommendation following an electrical inspection. It can be added to any existing electrical panel quickly and affordably.
Service Area
Surge protection installation is available throughout Toronto, Mississauga, Brampton, Vaughan, Richmond Hill, Markham, and all GTA municipalities.