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Avatar for GoGEN
GoGEN
4.8(
48
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+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
9 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for FINLEE ELECTRIC
FINLEE ELECTRIC
5.0(
9
)
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%
Blackthorn Electric LLC
4.9(
8
)
Generator - Install - For Business

Serving Leon Valley, TX and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Emergency services offered

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.\n

AUTOZONE
AUTOZONE
Response time3 hrs
11 neighbors recently requested a quote
Recommended by75%of homeowners
South Texas Source Electrical Contracting
5.0(
5
)
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!

Avatar for Hector
Hector
5.0(
2
)
Portable Generator - InstallPortable Generator - Repair

Serving Leon Valley, TX and surrounding areas

Approved

My name is Hector and im a locally owned and operated contractor dedicated to delivering top-quality electrical solutions for both residential and commercial clients. As a journeyman with over 5 years of experience, I specialize in everything from custom lighting and smart home automation to routine repairs and EV charger installation.\nYour safety is my tip priority; I strictly adhere to all NEC guidelines and maintain a commitment to clean, efficient work that is done right the first time.

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Generator Install questions, answered by experts

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

Generally, you’ll want to keep between 60 and 70 feet between the generator and the transfer switch. There are a few reasons for this, including:

  • The distance reduces the noise coming from the generator into your home.

  • It increases efficiency because you won’t have a voltage drop from this short of a distance.

  • Prevents carbon monoxide poisoning: keep at least 15 feet between your generator and an open window. 

A home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. 

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.