Home Generator Installation in San Antonio, TX
Generator work is handled in-house by our general-contractor crew. C.S.W. Power Solutions is a veteran-owned general contractor (VA Builder #09311) that holds both the electrical license (TECL31793) for the wiring and transfer switch, and the plumbing license (RMP46592) for the gas line — so one contractor owns the whole install, permit, and CPS Energy coordination. When San Antonio storms knock out power, your Generac standby activates automatically within 10 seconds.
VA Certified Builder — Registration ID #09311. Approved for VA-backed residential projects. Not a federal SDVOSB certification.
Why the GC umbrella matters
Generator Installation is handled in-house by our general contractor crew
C.S.W. Power Solutions is a veteran-owned general contractor first (VA Builder #09311). We hold the generator installation trade license ourselves (TECL#TECL31793 + RMP#RMP46592), so you get the accountability of a GC plus the depth of a licensed specialty crew — not a call-center dispatch to a sub.
- No subcontractor runaround
- Single point of accountability
- One crew handles permits & inspections
Veteran-Owned Generator Installation Under a GC's Umbrella
C.S.W. Power Solutions is a veteran-owned general contractor and Generac-authorized installer serving San Antonio. The electrical license (TECL31793) and plumbing license (RMP46592) are both held by the GC itself, and we're VA Builder registered (#09311) — one contractor owns the full install from electrical to gas line to inspection.
Veteran & Military Discount Available — ask when you call.
Whole-Home Standby Generator Installation
San Antonio's summer storms and CPS Energy grid events can knock out power for hours or days. A Generac standby generator activates automatically within 10 seconds of an outage — keeping your AC, refrigerator, and security system running without you lifting a finger. We handle permitting, CPS Energy coordination, and city inspection.
- Generac Standby Generator — 10kW to 26kW
- Automatic Transfer Switch Installation
- Generator Sizing & Load Calculations
- Natural Gas & Propane Connections
- Electrical Panel Integration
- City Permitting & Inspection
- Annual Maintenance Plans — $150–$400/yr
- Generator Repair & Diagnostics
Generator Installation Cost in San Antonio
| Service | Typical Range |
|---|---|
| 10kW Standby Generator | $8,000 – $15,000 |
| 16kW Standby Generator | $10,000 – $18,000 |
| 22kW Whole-Home Generator | $15,000 – $25,000 |
| 26kW+ Commercial Generator | $18,000 – $30,000+ |
| Automatic Transfer Switch | $800 – $2,000 |
| Panel Upgrade (if needed) | $1,800 – $5,500 |
| Annual Maintenance Plan | $150 – $400/yr |
Generator installation requires permits from the City of San Antonio, CPS Energy coordination for gas connection, and a concrete pad. These are included in the ranges above. Older homes with 100-amp panels typically require a panel upgrade before installation — see panel upgrade pricing above. Free on-site assessment provided. Final price depends on generator size, gas line condition, and panel capacity.
Our Generator Installation Process
Free On-Site Assessment
We evaluate your electrical panel, gas supply, and ideal generator placement to determine the right system size for your home.
System Sizing & Quote
We calculate your critical load requirements and provide a detailed, itemized quote covering equipment, installation, and permits.
Permits & Scheduling
We pull all required permits from the City of San Antonio and coordinate with CPS Energy for any utility work.
Installation Day
Our crew installs the concrete pad, generator unit, automatic transfer switch, gas line, and electrical connections — typically in one day.
City Inspection & Testing
We schedule and pass the city inspection, then test the full system including automatic transfer and load testing.
Walkthrough & Warranty
We walk you through system operation, maintenance requirements, and register your Generac warranty.
Generator Installation Requirements
Most generator installations require an electrical panel upgrade to accommodate the transfer switch and additional load. If your home has an older 100-amp panel, we typically recommend upgrading to 200 amps as part of the project. Generator installations also require gas line connections — and as a licensed plumbing contractor, we handle that in-house. Many homeowners who install generators also add an EV charger at the same time to take advantage of the panel upgrade. For a full breakdown of what to expect, read our complete guide to generator installation in San Antonio.
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.
Generator Installation FAQs
Ready for Backup Power?
Contact C.S.W. Power Solutions for a free generator installation estimate.
Financing Available · Veteran & Military Discount · Free Estimates