Whole Home Surge Protection
Pick your panel type and the protection level you want — see the exact product, connected-equipment warranty, and install method.
Panel Type
Square D Homeline panels enable plug-in or plug-on-neutral installs — fewer wires, faster job. Any other brand uses the universal external-wired SPDs.
Protection Level
kA is how big a surge the device can absorb. Higher = bigger surges handled = longer device life across years of small surges.
Your Setup
Most popular
Why this pick: What most of our customers choose. Maximum surge capacity, lifetime device warranty, and an outdoor-rated enclosure.
Final pricing depends on panel readiness, location, and any accompanying work. Your electrician will quote it on-site.
The four protection tiers
Bigger kA = handles larger surges + longer device life under daily small surges.
* HEPD80 is marketed at $75,000 connected-equipment coverage. Schneider's formal limited-warranty caps claim payouts at $50,000 or the homeowner's insurance deductible, whichever is less.
What a whole-home SPD protects
Plug-in strips only protect what's plugged into them. A whole-home SPD covers every circuit in the house — including hard-wired equipment.
How layered surge protection works
Surges come from outside (utility switching, lightning) and inside (motors cycling, EV charger). Best practice is two layers.
Layer 1 — Whole-home SPD
Mounted at or in the main electrical panel. Type 1 or Type 2 SPD that absorbs the bulk of any incoming surge — including utility surges that hit before any plug strip can react.
This is what we install (HEPD25 / HEPD50 / HEPD80 / HOM SKUs / CHSPT2ULTRA).
Layer 2 — Point-of-use strips
Type 3 SPDs (plug-in surge strips) at sensitive electronics — TV, computer, audio gear. They catch the smaller residual surges that get past the panel-level SPD.
Buy these yourself — they're inexpensive and complement the whole-home device.
Plug-on-Neutral vs. External Wired
Plug-on-Neutral (HOM250PSPD)
- Fastest install we offer (~45 min)
- Cleanest look — no external wires
- $50K equipment warranty, 5 years
- —Requires Square D Homeline plug-on-neutral panel (2014+)
External Wired (HEPD / Eaton)
- Works on any panel — Square D, Eaton, Siemens, GE, etc.
- More tier options (25kA / 50kA / 80kA / 108kA)
- Eaton CHSPT2ULTRA is outdoor-rated (NEMA 4)
- —~1–2 hour install (slightly more than plug-on-neutral)
Every install includes
Common questions
Ready to add surge protection?
Free on-site assessment. We confirm panel compatibility, recommend the right tier for your home, and quote it transparently.