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Avatar for GoGEN
GoGEN
4.8(
48
)
Fixed Generator - InstallPortable Generator - InstallFixed Generator - Repair+4 more

Serving Leon Valley, TX and surrounding areas

Approved

Super Service Award Winner

In business since 1994

Free estimates

Warranties offered

"They installed a whole house Generac generator in less than 4 hours.. very satisfied with their service. Excellent work ethic, answered all my questions, install has a very clean appearance, they were in and out as they said they would be. Did not leave a mess behind. I strongly recommend using GoGen for electrical and Generator service and install needs."
50 neighbors recently requested a quote
Recommended by45%of homeowners
Avatar for Thundercolt Electric
Thundercolt Electric
5.0(
124
)
Portable Generator - Install

Serving Leon Valley, TX and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"Professional, friendly, knowledgeable. The job was exactly what Gerardo said it would be. No hissing costs. No stress. No surprises. Gerardo and his crew were at the house and got it all done: both inside and outside electrical panels, an additional socket Iâ m the master bath, repair faulty wiring and install ceiling light, generator interlock for the house. Tidied up, went through tutorial on how to use the generator interlock when the power is out. Took care of a the contact with the electric company and permits, inspection. 5 stars. Canâ t say enough good things about Gerardo and his crew."
Side View #3
Rear View #1
Side View #2
Side View #1
Hallway

+208

Response time1 day
8 neighbors recently requested a quote
Recommended by91%of homeowners
Keil Electric LLC
5.0(
10
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Leon Valley, 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.

1 neighbors recently requested a quote
Recommended by77%of homeowners
Avatar for Voltsmith Electric
Voltsmith Electric
5.0(
12
)
Portable Generator - Install

Serving Leon Valley, TX and surrounding areas

Approved

In business since 2025

Emergency services offered

Warranties offered

Voltsmith Electric provides professional residential and commercial electrical services throughout New Braunfels and the greater San Antonio area. Our work is performed to focus on safe, code-compliant installations, proper diagnostics, and long-term solutions, not quick fixes.\n\nWe specialize in panel upgrades, dedicated circuits, EV charger installations, electrical troubleshooting, lighting upgrades, remodels and whole-home surge protection. Most projects begin with an on-site evaluation to ensure the correct solution and a clear scope of work.

Commercial Lighting
Electrician Mike
Hot Tub Power
Kitchen Lighting
Dining Light

+21

18 neighbors recently requested a quote
Avatar for FINLEE ELECTRIC
FINLEE ELECTRIC
4.5(
11
)
Portable Generator - Install

Serving Leon Valley, TX and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"I was having issues with my microwave plug not working and I had no gfci in my kitchen. I also had an interesting "fix" done on my water heater that was recently installed. I called several electricians some wanted close to $220 just to come look at my place!! But when I called Finlee, Isaac took the time on the phone to listen to the issues I was having and he even came out that same afternoon to look at things and get me an estimate. we agreed on what to fix first and he came the next day and made my kitchen safe again with GFCI plugs, a replacement for the microwave plug, and even installed a junction box to fix the water heater wires. A few weeks later I had a dryer breaker that was sparking and he came out and replaced the breaker on that! I'm thankful I found a great small business to use for any electrical problems!!"
Panel replacement
Panel replacement
Panel replacement
Panel replacement
Response time6 hrs
Response rate100%
South Texas Source Electrical Contracting
5.0(
6
)
Generator - Install - For Business

Serving Leon Valley, TX and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee assures you that we won't leave your property until you are completely satisfied with our work. As a locally owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today, and we look forward to working with you!

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Generator Install questions, answered by experts

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

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.

Carbon monoxide emissions aren’t only dangerous to human life, but they also harm our planet. While natural gas generators emit lower levels of CO than other fuel sources, there are still ways to reduce emission levels. For example, shop around for an eco-friendly generator that complies with current emission standards. Also, make sure your generator is serviced regularly to avoid CO buildup. 

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.

Many services include assembling the unit and securing it in the window. Confirm with your provider.

The Leon Valley, TX homeowners’ guide to generator installs

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