Showing 14 of 14 installers. Check the box on any installer below to compare a few side by side or request quotes directly from the ones you pick.
✓ License verified · Oct 2026Generac dealer
210 Electrical
210 Electrical LLC holds an active Texas electrical contractor license (TX TDLR 40001) and is based in San Antonio. It is listed in Generac's official dealer locator for home standby generators as a Select dealer (checked October 8, 2026).
5G Electric & Engineering LLC is a Texas-licensed, minority-owned electrical contractor (License #34569, Status: Active) based in San Antonio, founded by Master Electrician Gino Flores, offering Generac generator service alongside residential and commercial electrical work.
Bertrand Electric LLC holds an active Texas electrical contractor license (TX TDLR 27303) and is based in San Antonio. It is listed in Generac's official dealer locator for home standby generators as a Select dealer (checked October 8, 2026).
C.S.W. Power Solutions is a veteran-owned, Texas-licensed Electrical Contractor (TECL #31793) based in San Antonio that installs standby and Generac generator systems, handling sizing, the transfer switch, permits, and gas-line coordination.
Casanova Electric Corp holds an active Texas electrical contractor license (TX TDLR 31805) and is based in San Antonio. It is listed in Generac's official dealer locator for home standby generators as a Select dealer (checked October 8, 2026).
Current Power Technologies Inc is a Texas-licensed electrical contractor (License #38660, Status: Active) based in San Antonio, installing Generac, Kohler, and Cummins standby generators for residential and commercial customers. It is listed in the official dealer locators of Generac (as an Elite dealer), Kohler (as a Gold dealer), and Cummins, all checked October 2, 2026.
Engel Electric holds an active Texas electrical contractor license (TX TDLR 39029) and is based in San Antonio. It is listed in Generac's official dealer locator for home standby generators as a Select dealer (checked October 8, 2026).
Esquivel Electrical & Lighting LLC holds an active Texas electrical contractor license (TX TDLR 37930) and is based in San Antonio. It is listed in Generac's official dealer locator for home standby generators as a Select dealer (checked October 8, 2026).
Evenflow Home & Commercial Services LLC is a Texas-licensed Electrical Contractor (TECL #36013) based in San Antonio offering turnkey generator solutions including every stage of generator installation, from site assessment and permitting through final startup.
Frans Solar & Electric is a Texas-licensed electrical contractor serving the San Antonio area with whole-home backup generator installation, electrical design, solar, and EV-charger work.
Fuel types
Natural gas, Propane
License #
38998
Services
Generator Installation
Service area
San Antonio and surrounding communities, including Universal City and the greater San Antonio metro.
Hunter Service Group Inc is a Texas-licensed Electrical Contractor (TECL #31355) based in San Antonio specializing in generator installation, with a dedicated generator installation page covering automatic transfer switches, permitting, and system commissioning.
Seven Petal Electric is a Texas-licensed electrical contractor serving San Antonio and the surrounding metro with whole-home standby generator installation, backup batteries, panel work, and EV charging.
Fuel types
Natural gas, Propane
License #
36812
Services
Generator Installation
Service area
San Antonio, Schertz, Cibolo, New Braunfels, Garden Ridge, Converse, Universal City, Live Oak, and surrounding areas.
Synergy Electric is a Texas-licensed Electrical Contractor (TECL #29190) based in San Antonio, a Generac aligned partner offering turnkey residential generator installation, including load calculations, automatic transfer switch installation, permitting, and startup testing.
Wattsmith Electric is a Texas-licensed electrical contractor serving San Antonio with standby-generator installation, portable-generator transfer-switch and interlock hookups, electrical repairs, and panel upgrades.
Fuel types
Natural gas, Propane
License #
41806
Services
Generator Installation, Generator Repair
Service area
San Antonio, Alamo Heights, Stone Oak, Helotes, and the surrounding metro.
Communities named in these installers' service areas: Schertz, Cibolo, New Braunfels, Garden Ridge, Converse, Universal City, Live Oak, Alamo Heights, Stone Oak, Helotes. Confirm with each installer that they cover your address.
How to choose a generator installer in San Antonio
What the 14 installers listed here have on record. A missing answer only means it isn't on record yet, so ask. Why these questions matter.
Is their state electrical license active?
14 of 14 have a license we checked against the state board
Are they an authorized dealer for the brand you want?
6 of 14 list at least one brand they install: Generac (6), Cummins (1), Kohler (1). Ask whether they are an authorized dealer
Every installer above has a checked state electrical license. They're listed alphabetically, and no one pays for placement. See our listing standards.
Average cost in San Antonio
Whole-home standby generator installation in San Antonio typically costs $5,300-$12,200 all-in. See our full cost breakdown guide for what drives the price up or down, or use the generator sizing calculator for an estimate based on your own home.
LumoWatt estimate, not a published market study. Your quote depends on your home and site.
Permit & code requirements in San Antonio
The City of San Antonio Development Services Department handles permits for permanent backup generator work through its online permit system, and only a license professional registered with the city can pull an electrical permit. Confirm requirements for the exact address before installation.
In San Antonio's online permit system, Development Services tells applicants to file a whole home generator under the Solar-Photovoltaic permit type.
Texas has one of the highest whole-home standby generator adoption rates in the US following the February 2021 winter storm grid failure (Winter Storm Uri) and continued summer-heat grid strain warnings from ERCOT.