What we do

Whole-House Surge Protection in Austin

We publish what the rules actually say about electrical work across the Austin metro — sourced, dated, and specific to your permit office and your utility. The work itself is carried out by electricians licensed by the state.

A whole-house surge protective device is fitted at the service equipment and clamps voltage spikes arriving on the incoming supply before they reach your branch circuits. It is a small physical job with an unusually specific legal wrinkle in this city.

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Why this job is different in Austin

Most of the small jobs we cover are ones an Austin homeowner can permit themselves. This one is not, and the reason is worth understanding because it applies to a whole category of work.

The city's homestead permit lets an unlicensed person do electrical trade work in their own principal residence under published conditions — but it expressly excludes work on the main electric service. A service-entrance surge device is fitted at the service equipment. Physically it is a far smaller job than adding a circuit; legally it sits on the wrong side of that line, while adding a circuit sits on the right side of it.

That is a useful thing to know in general: the homestead permit is drawn around what the work touches, not around how big or difficult it is.

How to tell you need it

Worth doing if you have meaningful equipment on the supply — a variable-speed HVAC system, a well pump, an EV charger, a home office full of electronics, or anything with a control board that is expensive to replace.

Understand the limit, though: a service-entrance device handles what arrives on the incoming supply. It does not protect against everything, and it is normally paired with point-of-use protection at sensitive equipment rather than replacing it.

What it costs

This is usually a short job with a device cost and an installation cost. Where it stops being short is when the panel has no room, or the service equipment itself is at end of life.

We publish no figures here. The numbers circulating for this market come from pages that cite nothing and carry no date, and repeating them while making sourcing our whole point would be self-defeating. Ask for a written scope instead of a headline price, and ask what changes it.

Permits and inspection for this work

Because the device lands at the service equipment, this is not homestead-permit work in Austin. It is permitted, inspected, contractor work — and it is often sensibly bundled with a panel upgrade if one is happening anyway.

Whoever does this work should hold a TECL electrical contractor licence. State rules require that number on their advertising, their vehicles and their written proposals — ask for it and check it against the state's own licence search.

A service-entrance device lands here, at the top of the panel, which is why the homestead permit's main-service exclusion reaches it.

Worth reading before you call

Where we cover

Austinone utility
Georgetownpage in progress
Round Rockone utility
Cedar Park2 possible utilities
Pflugervillepage in progress
Leanderone utility
Lakeway2 possible utilities
Dripping Springsone utility
Kyle & Budapage in progress
San Marcos3 possible utilities

Common questions

Does this replace power strips?

No. A service-entrance device handles what arrives on the supply; point-of-use protection stays useful for sensitive equipment.

Can I fit one myself under a homestead permit?

Not in Austin. The homestead permit excludes work on the main electric service, and that is where this device goes.

Is it worth doing without an EV charger or HVAC?

It is a judgement about what you have on the supply. The case is strongest where there are control boards that cost more than the device.

Talk to an electrician about this job

Tell us which city you are in and what you need done, and we will connect you with a licensed contractor who works your area.