How much does an electrical panel upgrade cost in San Antonio?

San Antonio electrical panel upgrades: 100A to 200A upgrade 1,500-3,500; 200A panel replacement (same amperage) 1,000-2,500; 200A to 400A upgrade 2,500-5,000; subpanel installation 800-2,000. CPS Energy meter base upgrade (required for some older San Antonio homes) adds 300-700. Whole-house surge protection adds 300-800. EV charger circuit installation (concurrent with panel upgrade) runs 400-900. San Antonio panel upgrade costs are moderate compared to coastal metros - the competitive San Antonio electrical contractor market and lower cost of living translate to accessible pricing for Bexar County homeowners.

Do I need a permit for an electrical panel upgrade in San Antonio?

Yes - the City of San Antonio requires a permit for all electrical panel upgrades. The permit is pulled by the licensed electrical contractor (Master Electrician or company with Master on staff). CPS Energy is coordinated by the electrician for service disconnect and reconnect. Unpermitted panel work creates homeowner insurance issues and problems at resale. Always confirm your San Antonio electrician will pull the required permit before work begins.

What electrician license is required for panel upgrades in San Antonio?

Electrical panel upgrades in San Antonio must be performed by or under the direct supervision of a [Texas Master Electrician](https://www.tdlr.texas.gov/electricians/). Verify the electrical contractor holds an active Texas Master Electrician license at [TDLR License Search](https://www.tdlr.texas.gov/LicenseSearch/). Journeyman electricians can perform panel work under Master supervision but cannot independently pull permits or run an electrical business. Hiring an unlicensed electrician for San Antonio panel work creates fire risk, insurance exposure, and permit issues.

Should I upgrade from 100A to 200A in my San Antonio home?

Yes - for most San Antonio homes with central HVAC and standard modern appliances, a 200A panel is the appropriate minimum. San Antonio summer heat load (July-August) creates the highest electrical demand of any US season due to continuous central air conditioning operation. A 100A panel serving a San Antonio home with central HVAC, electric water heater, and standard appliances is at or near its rated capacity during summer peak. If you are adding an EV charger, pool pump, or additional HVAC unit, a 200A panel is required. The 1,500-3,500 cost of a 100A to 200A upgrade in San Antonio is one of the highest-value electrical investments available for an older San Antonio home.

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