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

Serving Roanoke, TX and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"Casey from Powertex did a great job. He installed recess lighting, a ceiling fan and dimmers. He also fixed a electrical switch. He took great care to protect my space while he worked. I will use Powertex for all my electrical needs."
Panel Before
Panel During Re-wire
Panel Rewire & Cleanup
Tesla Wall Charger
Free Estimates

+8

7 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 Roanoke, 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 Roanoke, 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
110 neighbors recently requested a quote
Avatar for Wilder Electric, LLC
Wilder Electric, LLC
4.7(
78
)
Portable Generator - Install

Serving Roanoke, TX and surrounding areas

Approved

In business since 2018

Emergency services offered

Warranties offered

"Wilder Electric owner Christopher Bedford did a wonderful job installing new wiring to an outside building and working on upgrades to our home. He was a caring and hardworking person. I would recommend his company ."
Soda Shop
patio plug
She plug
The Brian house
Front

+34

Response time6 hrs
Recommended by98%of homeowners
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Generator Install questions, answered by experts

It is safe to run a generator continuously, but you must follow safety protocols to ensure personal and home safety. Read the manufacturer’s instructions for specific recommendations, but the general recommendation is to turn generators off overnight or when you’re away from the house. Overworked generators can pose a fire hazard and if your generator is not in a well-ventilated area, running it continuously could lead to carbon monoxide poisoning.

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.

Yes, in some locations, it is required by the National Electric Code (NEC) to have a transfer switch installed for electrical emergencies. In addition to following electrical code, generator transfer switches ensure your home is fully protected during a power outage. By switching the power from the main breaker to the generator breaker, you can seamlessly operate your HVAC, lights, appliances, devices, and more during an emergency. 

The amount of time a standby generator can run continuously is around 3,000 hours on average. However, standby generators can generally run indefinitely as long as they have a continuous fuel supply. Generators hooked up to a home’s natural gas supply are the best option for extended usage, as these won’t rely on a finite fuel supply based on how much you have in storage. Generators running on liquid propane or diesel won’t last as long, as these require fuel storage and regular refueling to stay running.

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

The Roanoke, TX homeowners’ guide to generator installs

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