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Avatar for Powertex Electric
Powertex Electric
5.0(
10
)
Fixed Generator - InstallPortable Generator - Install

Serving Keller, TX and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"Everything went well, the technician thought everything out and had a plan and got things done. customer service, answered all my questions and also shared small conversation very professional. If I need more work, I will definitely use again."
Panel Before
Panel During Re-wire
Panel Rewire & Cleanup
Tesla Wall Charger
Free Estimates

+8

7 neighbors recently requested a quote
Avatar for McBride Electric
McBride Electric
5.0(
18
)
Fixed Generator - InstallPortable Generator - Install

Serving Keller, TX and surrounding areas

Approved

In business since 1961

Emergency services offered

Warranties offered

"I engaged McBride to install two ceiling fans at my house. The installer, Justin, did an excellent job on both and I'm very pleased with Justin and the work he did for me. For my next electrical project I will be calling McBride."
Response time11 hrs
Response rate90%
15 neighbors recently requested a quote
Avatar for Nmj Electric, LLC
Nmj Electric, LLC
5.0(
6
)
Portable Generator - InstallFixed Generator - InstallGenerator - Install - For Business+1 more

Serving Keller, TX and surrounding areas

Approved

Free estimates

Warranties offered

Small jobs welcome

At NMJ Electric, we provide dependable, high-quality electrical services for homeowners, businesses, and property managers throughout the Dallas–Fort Worth area. Whether you need a simple repair, a complete electrical installation, troubleshooting, lighting upgrades, panel replacements, or preventative maintenance, our goal is to deliver safe, code-compliant solutions with exceptional workmanship.\n\nAs a veteran-owned company led by a Texas Master Electrician, we take pride in honest communication, attention to detail, and doing the job right the first time. We believe every customer deserves reliable service, transparent pricing, and an electrician they can trust to protect their home or business.\n\nNo matter the size of the project, NMJ Electric is committed to providing professional electrical solutions that keep your property powered safely and efficiently.

Tumble Town Gymnasium
Tumble Town Gymnasium
Tumble Town Gymnasium
Tumble Town Gymnasium
Tumble Town Gymnasium

+7

28 neighbors recently requested a quote
Avatar for Tri-State Water, Power & Air
Tri-State Water, Power & Air
5.0(
5
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business

Serving Keller, 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
107 neighbors recently requested a quote
Avatar for Wilder Electric, LLC
Wilder Electric, LLC
4.7(
78
)
Portable Generator - Install

Serving Keller, TX and surrounding areas

Approved

In business since 2018

Emergency services offered

Warranties offered

"The security lights were replaced and covers installed for the outside electrical outlets . Also a pull chain light was replaced with a motion detected LED light in a closet. Garage lights were replaced with LED lights. Christopher and his associate have spent a lot of time coming back to adjust an outside security light. They are such professional electricians and will stand behind their work. . I recommend their services."
Soda Shop
patio plug
She plug
The Brian house
Front

+34

Response time6 hrs
Recommended by98%of homeowners
Avatar for Arc Angel Electrical Solutions, LLC
Arc Angel Electrical Solutions, LLC
4.9(
10
)
Fixed Generator - Install

Serving Keller, TX and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"Went very well. Very professional experienced nice team of guys. Very polite and work efficiently & effectively. They also installed our security cameras. We've worked with & met the owner as well. Always quote price before work is started most of the time when the appointment is scheduled. They always arrive on time or before but send text to give notice when they will arrive. Very dependable & reliable. AWESOME workers."
200 Amp Generac ATS
Generac Generator
12-V Battery install
Panel and EV Charge
Response time1 day
Response rate100%
6 neighbors recently requested a quote
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Generator Install questions, answered by experts

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.

An undersized whole-house generator has the potential to overheat and shut down when you try to run a central AC system. This scenario can not only damage the whole-house generator, but can also trip your home’s breakers or cause electrical damage. To avoid this situation, hire a local generator installer to correctly size your whole-house generator.

Whole-house generators can run continuously for extended periods, even for weeks at a time (around 400 to 500 hours), as long as they have a sufficient fuel supply. However, this type of extensive use will increase wear and tear and can shorten the generator's overall lifespan. During long periods of operation, it's important to check and refill the engine oil as needed, potentially as frequently as daily depending on the model. If your generator uses a fuel tank, ensure it is kept full to prevent unexpected shutdowns.

DIY is possible for basic setups. Professional installation ensures safe and proper electrical connections.

While the rating will tell you how many watts the refrigerator needs at the peak of its cycle, it requires additional wattage to start. At the bare minimum, you’ll need a 1,500-watt generator to get the fridge up and running after a blackout. A 2,000-watt generator should be sufficient for most home refrigerators.

The Keller, TX homeowners’ guide to generator installs

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