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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

Find Generator install pros in Cedar Hill

Avatar for McBride Electric
McBride Electric
5.0(
18
)
Fixed Generator - InstallPortable Generator - Install

Serving Cedar Hill, TX and surrounding areas

Approved

In business since 1961

Emergency services offered

Warranties offered

"Chris was a great service man. After a thorough inspection of my power panel, Chris found the problem of power surges and recommended I call ONCOR to fix the service to the house. One phase had burned through the rubber boot. ONCOR promptly came and reconnected the power properly."
Response time11 hrs
Response rate90%
10 neighbors recently requested a quote
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Avatar for Nmj Electric, LLC
Nmj Electric, LLC
5.0(
8
)
Portable Generator - InstallFixed Generator - InstallGenerator - Install - For Business+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

37 neighbors recently requested a quote
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Avatar for Mister Sparky of Mansfield
Mister Sparky of Mansfield
4.8(
16
)
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

+37

46 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%
1 neighbors recently requested a quote
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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
116 neighbors recently requested a quote
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Avatar for Cool Hand Electric LLC
Cool Hand Electric LLC
5.0(
2
)
Portable Generator - InstallFixed Generator - InstallFixed Generator - Repair+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
1 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for LEGENDARY ELECTRIC, LLC
LEGENDARY ELECTRIC, LLC
4.1(
14
)
Fixed Generator - Install

Serving Cedar Hill, TX and surrounding areas

Approved

In business since 2017

Free estimates

Warranties offered

"Taylor was informative and helpful I had to leave early and he finished and explained everything on the phone afterwards I highly recommend this Co."
Panel Replacement
Panel Replacement
Tesla charger
60 amp Breaker
Tesla Charger

+4

120 neighbors recently requested a quote
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Generator Install questions, answered by experts

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. 

Costs depend on generator type, labor, and additional wiring or transfer switch requirements.

Here’s what you can run with different wattages and types of generators:

Portable generator:

  • 2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. 

  • 4,000 watts will keep two large appliances operating and a few smaller devices.

  • 8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.

Partial to whole-house generator:

  • 20,000 watts and above will make it seem like your home’s power is still on.

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.

It might seem counterintuitive, but installing a generator transfer switch will save you money in the long run. While you’ll have to pay between $400 and $2,500 to have the transfer switch installed, you’ll recoup that amount later on when you don’t have to pay for expensive repairs to your appliances, devices, and electrical system that may have burned out, overloaded, or stopped working due to a sudden loss of power or an incorrect hook up of a generator to your home. 

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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