Keil Electric San Antonio
Electrical Panel Upgrade in Castle Hills
Electrical panel upgrade for Castle Hills homes and businesses. Master-licensed work, written scope, no surprises.
Keil Electric San Antonio handles electrical panel upgrade in Castle Hills, TX. At about 9 miles from downtown San Antonio, roughly 18 minutes, Castle Hills schedules the same as an in-town call. Master-licensed, TX #40645, (830) 214-8444.
Castle Hills service area.
From our San Antonio shop.
We dispatch from TX. Most days we're already in the area on another job. After-hours emergencies, we roll a truck.
San Antonio: Most days we're already in the area. Same-day appointments when capacity allows. After-hours emergencies dispatched when a licensed electrician is available, a real person at the local shop answers and tells you the ETA on the call.
Call nowIn Castle Hills we are usually working around 1950s and 1960s ranch homes where remodels keep turning up late-1960s aluminum branch wiring, and we scope electrical panel upgrade against what is actually there.
Every electrical panel upgrade job in Castle Hills starts with a walk-through and a written scope, not a phone estimate. At about 9 miles from downtown San Antonio, roughly 18 minutes, Castle Hills schedules the same as an in-town call.
What we look at for this job
What we have actually done in Castle Hills.
Specific evidence from electrical panel upgrade jobs we have run in Castle Hills. Not stock copy.
In Castle Hills we are usually working around 1950s and 1960s ranch homes where remodels keep turning up late-1960s aluminum branch wiring, and we scope electrical panel upgrade against what is actually there.
This is permitted work in Castle Hills. We pull the permit through the City of Castle Hills, schedule the inspection, and coordinate any utility disconnect and reconnect. That is our job, not something we hand back to you.
Permits and inspections
Not every job requires a permit. When the local AHJ requires one, we pull it, schedule the inspection, and stay with the job until it passes. No paperwork on you.
What's covered
Written warranty: 5-year on outlets, fixtures, and EV chargers; 10-year on wire and breakers; lifetime on panelboxes and surge protection. Parts and labor. Transfers with the home.
Why hiring a licensed electrician matters.
For electrical panel upgrade, here's the honest comparison. We'd tell you the same thing if we weren't trying to win the job.
A licensed electrician
Unlicensed for electrical
Doing it yourself
Spread the cost over time.
Pre-approval through Wisetack takes under 3 minutes. Soft credit check, no impact to your score.
- 0% APR for 3, 6, or 12 months (qualifying credit)
- 2–10 year low-interest plans for larger projects
- Soft credit check, takes less than 3 minutes
Financing through our partner Wisetack. Loan terms, APR, and approval subject to underwriting. Not all applicants qualify.
Common questions for Electrical Panel Upgrade in Castle Hills
Do I need to upgrade from 100A to 200A?
You need to if your load calc exceeds your current service capacity. Most homes built before 1985 have 100A or 60A service and exceed it the moment you add an EV charger, a hot tub, central AC, or a whole-home generator. We run a real load calc and tell you in writing whether the upgrade is required or recommended.
How much does a panel upgrade cost?
Cost depends on amperage (200A), whether the service entrance conductor needs replacement, the panel brand and breaker count, grounding updates, and the utility coordination required. We quote in writing after the site walk so the number is fixed before work starts.
How long is the power off during a panel upgrade?
Typically four to six hours during the utility cut and reconnect window. We schedule the cut early, complete the panel swap, and call for the utility reconnect once the inspection clears. Some larger upgrades or service-entrance changes run longer.
Do you pull the permit for a panel upgrade?
Yes. Service upgrades require a permit in every jurisdiction we work, and we pull it in the homeowner or property owner name. We schedule any inspection and the utility reconnect, and close the permit when the the work is complete.
Will my existing breakers transfer to the new panel?
Sometimes. If the existing breakers are the same brand and current generation, we can transfer the compatible ones. AFCI and GFCI breakers usually transfer cleanly when the manufacturer is the same. Older, brand-mismatched, or recalled breakers (FPE Stab-Lok, Zinsco) get replaced with new code-compliant breakers.
Other services we run in Castle Hills.
Same San Antonio team, same warranty, every job. Pick the next service you need.
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Need an electrician for electrical panel upgrade in Castle Hills, TX?
Tell us about the project. A licensed San Antonio licensed electrician walks the job in person and writes a real scope, backed by our written warranty.