How much does whole-home surge protection cost?
Whole-home surge protection is one of the cheapest ways to protect an electrified home. Here's the honest installed range in our area.
We're Astral — a licensed C-10 electrical contractor (CSLB #1114918). Honest ranges, permit included, your exact number from a free assessment.
Typical cost in our area
A whole-home SPD installed on its own in our area typically runs $350–$650 — a fraction of what one surge can destroy.
| What you're getting | Typical range |
|---|---|
| Whole-home SPD (Type 2) installed at the panel | $300 – $700 |
| Type 1 SPD or panel needs space/breaker work | $500 – $1,000 |
| Added during a panel upgrade or EV/solar jobthe ideal, cheapest time — and NEC 230.67 requires it on a service upgrade | often a small add |
| Point-of-use protection for sensitive gear | $40 – $150 each |
These are typical ranges for our service area, not a quote. Every home is different — the real number comes from a free on-site assessment and a NEC load calculation by a licensed C-10. We never promise a price online we can't stand behind.
If you're doing a panel upgrade or adding an EV charger, heat pump or solar, this is the moment — NEC 230.67 requires the SPD on a service upgrade anyway, and bundling it in is the cheapest whole-home protection you'll ever buy.
What moves the price
What a done-right price includes
The cheapest number online usually leaves this out. Ours doesn't.
- A panel-mounted SPD with a status indicator
- Installed to NEC 230.67 (required on new/upgraded services)
- Protects hardwired loads — EV charger, heat pump, solar, smart panel
- Wired, torqued and tested by a licensed C-10
- Logged in your portal for your records and resale
Certified installer & trusted partners
Questions, answered straight
Isn't a power strip cheaper?+
A plug-in strip only protects what's plugged into it, and not from the big surges coming in on your service. A panel-mounted SPD clamps the surge at the source and protects your whole home — hardwired loads included. For a few hundred dollars, it protects thousands in equipment.
Do I have to get it?+
On a new or upgraded dwelling service, NEC 230.67 requires it. On an existing panel it's optional but strongly recommended once you've added sensitive, expensive loads like an EV charger or heat pump.
Get your exact number — free.
A licensed C-10 comes out, runs the load calc, and gives you a clear, upfront price for your home. No obligation.
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