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Best generator install pros near Seguin, TX

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Verified Reviews for Generator Install pros in Seguin, TX

*The Angi rating for Generator Install companies in Seguin, TX is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

*The HomeAdvisor rating for Generator Install companies in Seguin, TX is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

Last update on August 29, 2026

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

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

Serving Seguin, 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."
55 neighbors recently requested a quote
Recommended by45%of homeowners
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Avatar for JAMES GRIFFIN ELECTRIC LLC
JAMES GRIFFIN ELECTRIC LLC
5.0(
17
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Seguin, TX and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"James was prompt and did a thorough job. Heâ s very polite and easy to work with. Cleaned up after himself. Weâ ve not had any problems and the generator works exactly as it should when weâ ve had a power outage."
2023
2023
2023
2023
2023

+18

Response time5 hrs
Recommended by82%of homeowners
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Clear Springs AC and Electric
5.0(
14
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+2 more

Serving Seguin, TX and surrounding areas

Approved

In business since 1990

Free estimates

Credit card accepted

"Note: This was for a mini-split system for a metal building. This is a GREAT company. I had been dealing with numerous contractors for this project and Clear Springs was the best company I had dealt with. They were professional, efficient, and ON TIME. I had received quotes from three different companies for the install of a mini-split system for two rooms (One company came out for the estimate but never got back to me). Clear Springs was not only the least expensive (ranging from $2000-$5000 less) but also the most informed. They presented different options and gave information on each option. I would highly recommend this company for all your A/C needs."
Response time10 mins
Response rate100%
Recommended by100%of homeowners
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Avatar for Voltsmith Electric
Voltsmith Electric
5.0(
13
)
Portable Generator - Install

Serving Seguin, TX and surrounding areas

Approved

In business since 2025

Emergency services offered

Warranties offered

"I had a fantastic experience with Voltsmith Electric. After hitting some confusion with a charger installation from another company, Mike came out, knew exactly what he was doing, and got our Level 2 EV charger installed and running at full power with no hassle. He was prompt, professional, meticulous with his work, and cleaned up everything before leaving. A completely smooth process from start to finish."
Commercial Lighting
Electrician Mike
Hot Tub Power
Kitchen Lighting
Dining Light

+23

18 neighbors recently requested a quote
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Avatar for Tru-Matrix Contracting Services LLC
Tru-Matrix Contracting Services LLC
5.0(
1
)
Generator - Install - For Business

Serving Seguin, TX and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"They worked, they were fast and on point. They did everything they needed to do and made suggestions. Great work and will use them again."
14 neighbors recently requested a quote
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Avatar for True path electric
True path electric
5.0(
1
)
Portable Generator - Install

Serving Seguin, TX and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

I am a master electrician, licensed and insured with ten years overall experience in industrial,commercial,residential and solar settings. I can do any-type of electrical work where it is new build or remodel

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Avatar for Koenig Electric
Koenig Electric
New to Angi
Portable Generator - RepairFixed Generator - InstallFixed Generator - Repair+4 more

Serving Seguin, TX and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Looking for reliable electrical contracting services in Waco/Temple? Look no further than Koenig Electric. Our team of experts is here to handle all your electrical needs. Contact us today!

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+4

Response time7 hrs
1 neighbors recently requested a quote
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Avatar for Will Fix It
Will Fix It
1.0(
1
)
Fixed Generator - InstallFixed Generator - Repair

Serving Seguin, TX and surrounding areas

Approved (Corporate)

In business since 1994

Free estimates

Emergency services offered

Serving the greater San Antonio, TX area since 1994, we are the trusted local source for installation, repair, replacement, or troubleshooting and maintenance of all your plumbing, heating, and cooling needs. You can count on our fast and friendly specialists to provide safe, courteous service nights, weekends - or whenever you call -- 24/7. When our employees visit your home, rest assured that they have passed background and drug tests, and are equipped to provide you with the service you need. We treat you and your property with respect by calling before we arrive at your property, providing an honest, upfront estimate you approve before any work is done, and taking care of your property by using shoe covers and drop cloths as needed. \n

Generator Installation
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Generator Install FAQs, answered by experts

You can determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator’s largest outlet is 30 amps, you’ll need a 30-amp transfer switch.

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.

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. 

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. 

Generators are safe to use as long as they are installed and operated correctly according to the manufacturer's recommendations. The most critical safety tips are to never use a portable or fuel-powered generator inside an enclosed space due to the risk of lethal carbon monoxide poisoning; always operate it outdoors where fumes can dissipate away from your home. Additionally, never attempt to connect a generator to your home’s electrical panel yourself—hire a professional to ensure the setup meets safety standards. Finally, avoid overloading the generator by not connecting more appliances than it is rated for, as this can damage your equipment or cause a fire.

The Seguin, TX homeowners’ guide to generator installs

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

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