Install whole-house surge protection at the electrical panel
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A whole-house surge protection device (SPD) mounts at your main electrical panel and intercepts large external surges — from lightning strikes, utility switching, or downed power lines — before they enter your home's wiring. It protects every circuit, including hardwired appliances like HVAC systems and ovens that can't plug into a power strip.
Why It Works
Type 1 and Type 2 SPDs clamp voltage spikes at the service entrance, reducing a surge from thousands of volts down to safe levels within nanoseconds. This protects the entire home as a first line of defense.
Tips
- Hire a licensed electrician for installation — working inside the main panel involves live high-amperage wiring
- Pair with point-of-use surge protectors on sensitive electronics for layered protection; the whole-house SPD handles large surges while strip protectors catch smaller internal spikes
- Typical installed cost runs $200-500 including parts and labor
Created: 4/23/2025, 10:42:42 PM professional service
Whole-house surge protection device (SPD)