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Best generator install pros near Schertz, TX

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Top-Rated Generator install pros in Schertz - Updated Nov 2026

Avatar for Thundercolt Electric
Thundercolt Electric
5.0(
124
)
Portable Generator - Install

Serving Schertz, TX and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"Work was well done, and they thought about how to best install the outlets to serve the needed purpose. Installation was quick and professional, they also cleaned up after themselves. I will use Thundercolt Electric for future electrical needs."
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Hallway

+208

Response time1 day
9 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Alamo Lighting & Electric
Alamo Lighting & Electric
4.9(
39
)
Generator - Install - For Business

Serving Schertz, TX and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"So quick... performed the service the same day as the quote. They installed 3 new ceiling fans in a 22-foot tall room and made it look so simple. I will definitely call them back to do other electrical work around my home."
Response time1 day
Recommended by97%of homeowners
Avatar for JAMES GRIFFIN ELECTRIC LLC
JAMES GRIFFIN ELECTRIC LLC
5.0(
17
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Schertz, TX and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"I had finally broke down and bought a generator. When I called one of the big guys they said they would show up at a certain time. Lets just say they did not. When I called to their office all I got was the run around. I was referred to James Griffin Electric by a friend and when I called I was surprised the owner actually answered. He was able to get out there very promptly and got me going. I will definitely be using him again and referring him in the future."
2023
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2023

+18

Response time5 hrs
Recommended by82%of homeowners
Avatar for Beyer Electrical
Beyer Electrical
4.6(
24
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Schertz, TX and surrounding areas

Approved

In business since 1998

Credit card accepted

Offers commercial services

Need an electrician in South Texas? Beyer Electrical helps homeowners and businesses solve the electrical issues that matter most, from frequently tripping breakers, outdated panels and faulty wiring to lighting upgrades, generator installation and EV charger setup. Whether you need a quick repair, a safety inspection or electrical work for a remodel or new construction project, our licensed team is here to keep your property safe, efficient and powered for what's next.

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84 neighbors recently requested a quote
Recommended by45%of homeowners
Keil Electric LLC
5.0(
10
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Schertz, TX and surrounding areas

Approved

In business since 2014

Credit card accepted

Offers commercial services

Keil Electric has been a trusted name in the electrical industry for 15 years, serving the greater Austin area. We specialize in both residential and commercial services, offering expert solutions for all your electrical needs. In addition, we have a strong presence in the construction sector. Our founder, Andy Keil, is a master electrician with decades of experience, ensuring top-quality workmanship and reliable service for every project.

2 neighbors recently requested a quote
Recommended by77%of homeowners
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Generator Install FAQs, answered by experts

In many cases, yes. There are models called dual-fuel generators and fuel switches, but only between certain types of fuel. For example, with the right setup you can convert a generator from natural gas to propane. Some allow switching between diesel and gasoline. There are even tri-fuel generators available in some cases, which adds a large layer of security if you are worried about fuel availability in times of crisis. Always check your generator capabilities and manual instructions before trying to switch fuels. Some generators can use another fuel but may need a fuel conversion kit to prep them first.

While diesel is relatively stable, it won’t last nearly as long as propane and you may have to replace it if it sits unused for too long. Diesel can sometimes struggle to work efficiently or start engines during especially cold weather, so it’s not the best choice for every climate. Compared to fuels like propane and natural gas, diesel generators tend to be noisier and create more exhaust, which isn’t always ideal for home use.

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

The average cost to install a home generator is $5,200, but total costs can range from $500 to $18,000 or more. The final price depends on several factors, including the generator's size, type, brand, fuel source, and the cost of labor and assembly. The generator's size is the most significant cost factor, as units that can power larger homes with higher energy demands cost more.

Cost breakdowns by generator type are typically as follows:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500–$2,000

  • Partial-Home Generators (9kW–20kW): $2,000–$6,500

  • Whole-House Generators (22kW–48kW): $5,000–$18,000

To ensure you get the right size unit for your needs without overpaying, consider hiring an electrician to calculate the electrical load of your essential appliances. It is also recommended to get at least three quotes from qualified installers to find the best fit for your budget.

If you have a transfer switch properly installed, the generator and main electrical power cannot feed the system at the same time. However, you should still shut off the power at your main circuit breaker panel before activating the generator. If you do that, you’ll simply need to shut off the generator and reset your circuit breaker once the local power comes back on.

The Schertz, TX homeowners’ guide to generator installs

From average costs to expert advice, get all the answers you need to get your job done.