Electrical · San Antonio, TX

Electrical Panel Upgrades
in San Antonio, TX

If your San Antonio home still has a Federal Pacific or Zinsco panel, your insurer probably already knows. We replace them, size the upgrade to your real load, and pull the permit.

Call (830) 587-5790 service@callmoorhead.com
Licensed & Insured
Flat-Rate, Written First
Local to Bexar County
Request Panel Upgrade Fast reply across San Antonio — usually same day.

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Electrical Panel Upgrades by Moorhead Service Company in San Antonio, TX Permitted + inspected
The Panel Insurers Flag

When the Breaker Box Becomes the Problem

Federal Pacific and Zinsco panels — common in San Antonio homes built from the 1950s through the 1980s — have a documented failure-to-trip problem, and carriers increasingly refuse to cover them.

We replace the panel, size the new service to your actual load including AC and any EV charger, and handle the permit and inspection.

Call (830) 587-5790

Panel Upgrades in San Antonio

A panel upgrade is not glamorous, but it is the spine of a safe, modern home. Here is when San Antonio homes need one.

Federal Pacific & Zinsco Replacement

These panels can fail to trip under a fault — a real fire risk and a reason insurers balk. If you have one, replacing it is one of the highest-value safety upgrades in the house. We document it with a permit so it is on record for resale.

Undersized 60- and 100-Amp Services

A lot of older San Antonio homes run a service that was fine for 1970 and is overwhelmed by central AC, a modern kitchen, and a charger. We size a 200-amp service to what your home actually draws now.

Sized for the Real Load

Being licensed for HVAC and electrical, we size the panel to carry the AC properly — the part panel-only electricians often get wrong. The breaker box and the condenser are the same job to us.

Permitted and Inspected

Every panel upgrade gets the local permit and inspection, wired to NEC 2023. It protects you, it is required, and it is the difference between a real upgrade and a liability hidden behind a cover.

Why San Antonio Homes in Particular

Stone Oak, Alamo Ranch, Shavano Park, the sprawl past Loop 1604 — these subdivisions went up fast in the 1990s and 2000s on builder-grade 14-SEER equipment. Those units are now 15 to 20 years old and failing in batches. The classic call is the two-story where the upstairs never cools, because the original system was sized for square footage and ignored the stack of heat that builds on the second floor. We fix that with a real load calculation, a zoning damper, or a mini-split — not by selling you a bigger condenser and hoping.

Electrical Panel Upgrades Pricing in San Antonio

ServiceNotesPrice
FPE / Zinsco panel evaluationSafety report + replacement quote$100–$150
Whole-home surge protectorType 2, panel-mounted, tested$250–$450
200-amp panel upgradeWritten quote after load assessmentQuoted on site

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

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Electrical Panel Upgrades · San Antonio
→FPE / Zinsco replacement
→200-amp upgrades
→Sized for AC load
→Permitted + inspected
→Licensed TACLB127071E
Moorhead electrical panel upgrades job near San Antonio
Real Moorhead work
Electrical Panel Upgrades in Bexar County
Licensed & local
Moorhead Service Company van on a San Antonio call
On the truck, in your neighborhood
Where We Work

Electrical Panel Upgrades 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

Electrical Panel Upgrades in San Antonio — Questions

If it is a Federal Pacific or Zinsco, those panels have a documented failure-to-trip problem and carriers increasingly will not cover them. Replacing it removes the hazard and the coverage issue, and we document it with a permit.
Signs include a 60- or 100-amp service, a fuse box, breakers that trip when the AC and another big load run together, or a Federal Pacific or Zinsco label. We evaluate it for $100 to $150 and put the findings in writing.
Yes — that is exactly the crossover we are built for. Licensed for HVAC and electrical, we size the service to carry the AC and the charger properly, not just land another breaker and hope.
Always. Panel upgrades are permitted and inspected, wired to NEC 2023. Skipping the permit is how it fails at resale or, worse, fails for real.
Customer Reviews

What San Antonio Customers Say

5.0★  ·  457 Google reviews

“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

“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

“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

AC Repair AC Installation & Replacement AC Maintenance Heating & Furnace Repair Ductless Mini Split Installation Electrician Services Generac Generator Installation Thermostat Repair & Installation Heat Pump Installation & Replacement Air Duct Cleaning Duct Sealing Whole House Air Purifier Installation HVAC UV Light Installation Dehumidifier Installation & Repair Humidifier Installation & Repair AC & Furnace Air Filter Replacement Heat & Energy Recovery Ventilator Installation Electrical Repair Electrical Wiring & Rewiring Indoor & Outdoor Lighting EV Charger Installation Smoke & CO Detector Installation Electrical Inspection & Code Compliance Whole Home Surge Protection All San Antonio Services
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Request Panel Upgrade 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

Panel Trouble in San Antonio?

FPE/Zinsco replacement and 200-amp upgrades, permitted.

(830) 587-5790 service@callmoorhead.com