Safety & diagnosis — sizing guideline

Power Surge Risk Checker

Check off what applies to your home to see whether whole-home surge protection is likely worth it for you.

1. Your Situation

You have expensive electronics (TVs, computers, home theatre, smart home hub)

You have modern appliances with electronic control boards (fridge, washer, HVAC, induction stove)

You live somewhere with frequent thunderstorms or lightning

You've had power flickers, brownouts, or outages that damaged something before

You're on overhead utility lines (not underground)

You have solar, a generator, or an EV charger installed

2. Your Exposure

0 of 6 factors

Recommendation:

Check off what applies to see your recommendation.

Where surges actually come from

Most surges come from inside the home — a large appliance motor (fridge, A/C) cycling on creates a brief internal spike.
Lightning strikes and utility grid switching cause less frequent but much larger surges.
A whole-home surge protector at the panel catches both, while point-of-use power bars only protect what's plugged into them.

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Need an electrician for your project?

The Riley Group Electrical provides licensed, insured electrical services across Durham Region and the GTA. For panel upgrades, EV chargers, renovations, or troubleshooting, reach out today.

Licensed & insured ESA# 7011454 Durham Region & the GTA

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