4A Electrical Services, LLC

Ask the contractor to provide proof of license or local registration, a current general liability insurance policy, and workers’ compensation or evidence of coverage for employees. Permit and licensing requirements can vary by city and county in Texas, so confirm the contractor will pull required permits and arrange inspections through the City of San Antonio Development Services (you can also verify permits/inspections online or by calling the city). Get a written estimate that lists the permit number (once pulled), request references, and check online reviews or the Better Business Bureau. Avoid hiring someone who refuses to provide documentation or to work under the required permits and inspections.

Many homes built decades ago have 60–100 amp service or outdated panels that struggle with modern loads. Signs you may need an upgrade include frequent breaker trips, flickering lights when HVAC or large appliances run, a warm or discolored panel, knob-and-tube or Federal Pacific equipment, or lack of required protection (AFCI/GFCI) in newer code locations. A licensed electrician will perform a load calculation, inspect the service entrance and meter, and advise whether a panel replacement or service upgrade (often to 100–200 amps) is recommended. Upgrades typically require a permit and inspection and coordination with your utility (in San Antonio most homeowners work with CPS Energy for meter/disconnect work). Costs and timeline vary by scope — ask for a written proposal that outlines the work, permits, expected coordination with the utility, and any temporary power arrangements.

Because San Antonio has hot summers and occasional severe storms, prioritize weatherproof and safety upgrades: install GFCI protection for outdoor, garage, kitchen, bathroom, and pool circuits; use AFCIs where required for bedrooms and living areas; add a whole‑house surge protector at the service panel and point‑of‑use surge protection for sensitive electronics; replace outdoor fixtures and receptacles with weather‑rated, tamper‑resistant models; ensure proper grounding and bonding of the electrical system; and have an electrician inspect HVAC circuits and disconnects. For severe lightning or repeated surge issues, a licensed electrician can evaluate whether supplemental lightning protection or grounding upgrades are appropriate. Make sure any work is done under permit and meets the current local adoption of the National Electrical Code.