Electrical · San Antonio, TX

Whole Home Surge Protection
in San Antonio, TX

The Texas grid runs independently, which means more voltage transients than most of the country. A whole-home surge protector guards your San Antonio home's electronics for a fraction of what replacing them costs.

Licensed & Insured
Flat-Rate, Written First
Local to Bexar County
Request Surge Protection Fast reply across San Antonio — usually same day.

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Whole Home Surge Protection by Moorhead Service Company in San Antonio, TX For the ERCOT grid
Guard the Whole House

The Spikes You Never See

Surges are not just lightning — most are small, frequent transients from the grid and from big appliances cycling, and on the independent ERCOT grid they come more often. Each one shortens the life of your electronics and HVAC boards.

A panel-mounted Type 2 protector stops them at the door for the whole San Antonio home.

Call (830) 587-5790

Whole-Home Surge Protection in San Antonio

Cheap insurance against an expensive, invisible problem — here is how it works in San Antonio.

Why It Matters on the ERCOT Grid

Texas operates its own grid, and that independence brings more frequent voltage transients than interstate grids. For San Antonio homes that is a steady, quiet stress on everything plugged in, not just the rare lightning hit.

Protects the Expensive Stuff

Modern HVAC systems, appliances, and the panel itself all run on sensitive electronics. A whole-home protector guards the AC control board, the smart thermostat, and the rest — the repairs that cost far more than the device.

Panel-Mounted, Whole-House

A Type 2 protector mounts at the panel and protects every circuit, layered with point-of-use protectors for the most sensitive gear. We install and test it, and it is a quick, high-value job in any San Antonio home.

Why San Antonio Homes in Particular

Monte Vista, Mahncke Park, Alamo Heights, King William — gorgeous homes, original electrical. We still find knob-and-tube remnants, 60- and 100-amp services feeding a house that has since added two AC systems and a hot tub, and Federal Pacific or Zinsco panels that Bexar County insurers increasingly refuse to cover. Homes built 1965 to 1973 often have aluminum branch wiring, which loosens at connections and runs hot. None of it is a reason to panic. All of it is a reason to have it looked at before it picks the worst possible night to quit.

Whole Home Surge Protection Pricing in San Antonio

ServiceNotesPrice
Type 2 surge protectorPanel-mounted, 50kA, tested$250–$375
Type 2 surge protector (premium)80–100kA, for generator/EV homes$325–$450

All prices flat-rate, all-in, written and approved before work starts. No travel surcharge for San Antonio.

Moorhead whole home surge protection job near San Antonio
Real Moorhead work
Whole Home Surge Protection in Bexar County
Licensed & local
Moorhead Service Company van on a San Antonio call
On the truck, in your neighborhood
Where We Work

Whole Home Surge Protection Across San Antonio

From the historic homes inside Loop 410 to the new builds past 1604, we run calls across the San Antonio metro every week. A few of the areas we cover:

Alamo Heights
Terrell Hills
Olmos Park
Monte Vista
King William
Southtown
Stone Oak
Alamo Ranch
Shavano Park
Castle Hills
Mahncke Park
Hollywood Park
Converse
Live Oak
Universal City
Helotes
Straight Answers

Whole Home Surge Protection in San Antonio — Questions

On the ERCOT grid, yes. Texas runs its own grid with more frequent voltage transients than most of the country, and those quiet spikes shorten the life of your San Antonio home's electronics and HVAC boards. A protector is cheap next to replacing them.
A panel-mounted Type 2 protector runs $250 to $375, or $325 to $450 for a premium unit on a generator or EV home — flat-rate, in writing, tested after install.
No — most surges are small, frequent transients from the grid and from appliances cycling, which is the bigger ongoing threat. A whole-home protector handles both.
Every circuit in the San Antonio home — your AC control board, appliances, smart devices, and the panel. We often layer it with point-of-use protection for the most sensitive electronics.
Customer Reviews

What San Antonio Customers Say

5.0★  ·  457 Google reviews

“Our AC died during that August heat wave and Moorhead had a tech at our place in Stone Oak the same afternoon. Turned out to be a capacitor — he had the part on the truck, fixed it in under an hour, and charged exactly what he quoted. No upsell.”

Daniel K.
San Antonio, TX

“We bought a 1940s home in Monte Vista and the panel was a Federal Pacific our insurance would not touch. Justin's crew swapped it, pulled the permit, and explained everything in plain English. Felt like dealing with a neighbor, not a salesman.”

Rebecca T.
San Antonio, TX

“Called three places when the upstairs of our house would not cool. Moorhead was the only one who measured the load instead of just quoting a new system. Ended up being a zoning fix for a fraction of the price. Honest people.”

Marcus V.
San Antonio, TX
See All 457 Reviews on Google
More in San Antonio

Other Services We Offer in San Antonio

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Request Surge Protection in San Antonio

Tell us what the system's doing and we'll get right back to you — usually same day, anywhere in San Antonio. Prefer to talk? Call (830) 587-5790, day or night.

By submitting this form and signing up for texts, you consent to receive messages from Moorhead Service Company at the provided number, including messages sent via auto-dialer. Consent is not a condition of purchase. Msg & data rates may apply. Msg frequency varies. Unsubscribe at any time by replying STOP or clicking the unsubscribe link (where available). For help, reply HELP. Information will not be shared with third parties for marketing or promotional purposes. Privacy Policy & Terms of Condition

Guard Your San Antonio Home

Whole-home surge protection for the Texas grid.