Electrical Panel Upgrades in San Antonio, TX
Is your electrical panel outdated or overloaded? We upgrade 100-amp panels to 200-amp, replace Federal Pacific and Zinsco panels, and coordinate directly with CPS Energy for service upgrades — all permitted and inspected.
VA Certified Builder — Registration ID #09311. Approved for VA-backed residential projects. Not a federal SDVOSB certification.
Veteran-Owned Panel Upgrade Contractor in San Antonio
C.S.W. Power Solutions is a veteran-owned electrical contractor specializing in panel upgrades across San Antonio. All work is permitted and inspected. Electrical License #TECL31793. As a VA-Certified Builder (ID #09311), we are authorized to perform panel upgrades under VA Specially Adapted Housing grants for disabled veterans.
Veteran & Military Discount Available — ask when you call.
When Do You Need a Panel Upgrade?
Many San Antonio homes still have 100-amp or even 60-amp electrical panels that cannot safely handle modern electrical loads. Adding a generator, EV charger, or major appliance almost always requires a panel upgrade. We coordinate directly with CPS Energy for utility disconnects and service upgrades.
- 100A to 200A Panel Upgrade — $1,800–$5,500
- 200A to 400A Panel Upgrade — $4,500–$12,000
- Federal Pacific / Zinsco Replacement — $1,500–$4,000
- Subpanel Installation — $500–$1,500
- Single Breaker Replacement — $100–$200
- Code Compliance Corrections
- GFCI & AFCI Breaker Upgrades
- CPS Energy Coordination
Electrical Panel Upgrade Cost in San Antonio
| Service | Typical Range |
|---|---|
| 100A to 200A Panel Upgrade | $1,800 – $5,500 |
| 200A to 400A Panel Upgrade | $4,500 – $12,000 |
| Federal Pacific / Zinsco Replacement | $1,500 – $4,000 |
| Subpanel Installation | $500 – $1,500 |
| Single Breaker Replacement | $100 – $200 |
| Whole-Home Rewiring | $4,000 – $15,000+ |
A 200A to 400A upgrade is always more expensive than a 100A to 200A upgrade. The 400A service requires heavier service entrance wire, a new meter base, and CPS Energy coordination — significantly more work than a standard upgrade. Most SA homes only need 200A; 400A is for homes over 3,000 sqft or with multiple EV chargers, pools, or workshop equipment. Free on-site estimates provided.
Our Panel Upgrade Process
Panel Evaluation
We inspect your existing panel, wiring, meter base, and service entrance to identify what needs to be upgraded or replaced.
Scope & Quote
We provide a detailed, itemized quote covering the new panel, breakers, meter base (if needed), labor, and permit fees.
CPS Energy Coordination
We coordinate with CPS Energy for any required service upgrades or utility disconnects before installation.
Permit Pull
We pull the electrical permit from the City of San Antonio Development Services Department.
Installation
We install the new panel, transfer all circuits, label every breaker, and restore power — typically in one day.
City Inspection
We schedule and pass the city electrical inspection, then provide you with the signed permit for your records.
Common Reasons for Panel Upgrades
Panel upgrades are frequently required for generator installations, EV charger installations, and HVAC system replacements. They are also a common component of home remodels and damage restoration projects. If your home has a Federal Pacific or Zinsco panel, replacement is strongly recommended due to known safety issues. C.S.W. Power Solutions handles the entire process — from evaluation and permitting to installation and city inspection. For a full cost breakdown, visit our electrical panel upgrade service page or read our blog for detailed pricing guides.
One Contractor. All Trades.
C.S.W. Power Solutions is more than an electrical contractor. As a licensed general contractor, we also provide plumbing and HVAC services in-house. Projects that require multiple trades — like home remodels or damage restoration — are managed under one roof for faster completion and lower cost. No subcontractor markup. No scheduling conflicts. One point of contact from start to finish.
Electrical Panel Upgrade FAQs
Need a Panel Upgrade?
Contact C.S.W. Power Solutions for a free electrical panel evaluation.
Financing Available · Veteran & Military Discount · Free Estimates