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Verified Reviews for Generator Install pros in Cedar Hill, TX

*The Angi rating for Generator Install companies in Cedar Hill, 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 Cedar Hill, 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 July 08, 2026

Top-Rated Generator install pros in Cedar Hill - Updated Nov 2026

Avatar for Nmj Electric, LLC
Nmj Electric, LLC
5.0(
8
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install+1 more

Serving Cedar Hill, TX and surrounding areas

Approved

Free estimates

Warranties offered

Small jobs welcome

"Mario was great from initial estimate to a very clean installation of whole home surge protectors and a new ceiling fan. Highly recommend and will work with Mario for all future electrical needs."
Tumble Town Gymnasium
Tumble Town Gymnasium
Tumble Town Gymnasium
Tumble Town Gymnasium
Tumble Town Gymnasium

+7

9 neighbors recently requested a quote
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Avatar for Mister Sparky of Mansfield
Mister Sparky of Mansfield
4.7(
17
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Cedar Hill, TX and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"“Great experience from the beginning. Everyone was very friendly and helpful from the moment I submitted my request for electrical work. They provided great customer service and made the whole process easy. I would definitely recommend Mister Sparky of Mansfield to anyone looking for electrical services.”"
Mister Sparky Fleet/Team
Mister Sparky Fleet/Team
Mister Sparky Fleet/Team
Mister Sparky Fleet/Team
Mister Sparky Fleet/Team

+38

45 neighbors recently requested a quote
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Avatar for LuminX Electrical Contractors
LuminX Electrical Contractors
4.9(
14
)
Portable Generator - InstallPortable Generator - Repair

Serving Cedar Hill, TX and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"LuminX is a company I would recommend, they were extremely professional and courteous. I was informed when they were on their way and they did the job quickly and the new outlet was installed right where we needed it. I will definitely be calling them for future jobs and recommend to anyone needing electrical work."
Exterior Lighting
Exterior lighting
Before
Before
Interior

+10

Response time2 hrs
Response rate89%
Recommended by100%of homeowners
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Avatar for Tri-State Water, Power & Air
Tri-State Water, Power & Air
3.9(
7
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business

Serving Cedar Hill, TX and surrounding areas

Approved (Corporate)

In business since 1992

Free estimates

Emergency services offered

Tri-State Water, Power & Air has been provided products designed to improve the comfort and quality of life of our customers since 1992. Our specialty is Automatic Home Standby Generators. \nWe expect customer service excellence and aim to go above and beyond on every call. With 10 locations across 8 states, Tri-State is always ready to serve you.

Additional Photos
114 neighbors recently requested a quote
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Avatar for LEGENDARY ELECTRIC, LLC
LEGENDARY ELECTRIC, LLC
4.3(
18
)
Fixed Generator - Install

Serving Cedar Hill, TX and surrounding areas

Approved

In business since 2017

Free estimates

Warranties offered

"I was so impressed with Legendary Electric Co. Jeremy the electrician took great care of me when I needed an outlet installed to complete an insurance claim repair. Jeremy was very professional and knowledgeable and did a great job. Great communication throughout the process. I would definitely recommend Legendary Electric and Jeremy for any needed repairs. You won’t go wrong!"
Panel Replacement
Panel Replacement
Tesla charger
60 amp Breaker
Tesla Charger

+4

96 neighbors recently requested a quote
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Avatar for Cool Hand Electric LLC
Cool Hand Electric LLC
5.0(
2
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Cedar Hill, TX and surrounding areas

Approved

In business since 2015

Emergency services offered

Warranties offered

"I needed an additional lighting fixture wired in and mounted above our pantry as well as an outdoor outlet in our patio ceiling, Cool Hand crushed it! They were extremely respectful of our home and wore disposable booties over their shoes every time they had to come inside from the attic or backyard. The install was extremely clean & professional, and of course worked flawlessly. Luke was very kind to our curious daughter who didnâ t make his job any easier! We wouldnâ t hesitate to hire them for the next project, they are 1st class."
Breaker Box Breaker Panel
Training Room
Open Splices
Broken Splice
Response time7 hrs
Recommended by100%of homeowners
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Showing 1-10 of 197
Generator Install FAQs, answered by experts

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.

As a safety measure, you should always turn off the main breaker while operating your generator’s backup breaker. In addition, you should also switch off all appliance breakers so you don't have a power surge when the main breaker turns back on. And finally, turning off the main breaker prevents back-feeding, which endangers utility workers with the risk of electrocution. Back-feeding could also destroy the electrical circuits of your neighbors if they use the same power network.

Yes, in most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home models. Because these installations involve significant alterations to your home's electrical system and produce exhaust fumes, local governments often require a permit or inspection for safety purposes. A generator permit typically costs between $50 and $250, depending on your location. Your electrician or certified installer can usually handle the permitting process for you, but you will be responsible for the cost. It's a good practice to confirm with your installer that they will pull all necessary permits before work begins.

Generators run on a variety of fuel types, ranging from natural gas to solar power. Keep in mind that fuel costs varying by type:

  • Natural gas: $2,000–$21,000 per year 

  • Liquid propane: $2,000–$21,000 per year

  • Diesel: $3,000–$20,000 per year

  • Gasoline: $500–$3,000 per year

  • Solar generator: $2,000–$25,000 per unit

  • Battery backup: $10,000–$25,000 per unit

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.

The Cedar Hill, 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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