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TRUSTED BY NEWCASTLE, OK HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon15
    Verified generator installs reviews

Find Generator install pros in Newcastle

Avatar for Tru-Fuse Electric, LLC
Tru-Fuse Electric, LLC
4.5(
10
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Newcastle, OK and surrounding areas

Approved

In business since 2014

Free estimates

Credit card accepted

"We purchased a fixerupper and tried to get the Breaker Panel replaced for 4 months to no avail. One contractor came but never gave us a bid. Another told us he was very busy and put us on his list. When the 45 yr old panel started to arch and lights blinked we called the fire dept and they encouraged us to find an electrician asap. We found a company that said they were available day and night. That proved not to be true. We were scheduled and rescheduled days out. We had contacted HomeAdvisor who put us in contact with True Fuse Electric. Brad Will examined our issue, rearranged his scheduled and got a new panel installed days before anyone else would even come. Mr. Will was helpful to explain everything to us. He was prompt and his work is neat and clean. We have confidence our electrical issue has been adequately repaired and at a very fair price. Knowing we were anxious about the situation he could have charged much more but his price was quite fair. We are very pleased and Glad to recommend True Fuse Electric. Thanks Home Advisor for connecting us."
Response time1 day
Recommended by100%of homeowners
Whelans Electrical Services
New to Angi
Portable Generator - Repair

Serving Newcastle, OK and surrounding areas

Approved

Emergency services offered

Small jobs welcome

Offers commercial services

At Whelan Electrical Services, we are committed to providing safe, reliable, and high-quality electrical solutions for residential and light commercial customers. With years of hands-on experience in electrical construction, maintenance, troubleshooting, and service work, we take pride in delivering honest recommendations, exceptional workmanship, and outstanding customer service.\nWhether you need electrical repairs, panel upgrades, lighting installation, generator connections, EV charger installation, troubleshooting, or new electrical installations, we approach every project with professionalism, attention to detail, and a commitment to safety. Our goal is to complete every job correctly the first time while exceeding customer expectations.\nWhen you choose Whelan Electrical Services, you’re choosing dependable service, transparent communication, and quality work you can trust.

GENERATOR SUPERCENTER
4.2(
36
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Newcastle, OK and surrounding areas

In business since 1980

Free estimates

Credit card accepted

"The electricians and plumbers were very professional in their demeanor. They worked as a team, everyone knew what to do and how to do it. They answered all my questions, but didn't let that distract them from their job. I was impressed with the speed of the installation. They cleaned up after themselves and took their trash with them."
Response time3 days
Recommended by100%of homeowners
Avatar for Active Electric LLC.
Active Electric LLC.
5.0(
10
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Newcastle, OK and surrounding areas

In business since 2014

Free estimates

Emergency services offered

"Outstanding! I have never had such professional and courteous and quick assistance from any other company in the 15 years I have lived in this area. I highly recommend Justin and his company, active electric!!"
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+4

Response time1 day
Response rate100%
Recommended by80%of homeowners
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Generator Install questions, answered by experts

Yes, installing a generator usually increases your property value because buyers are getting the added peace of mind knowing they’ll be able to maintain power through blackouts. In most cases, you should see close to a 100% return on investment (ROI). Keep in mind that home generators usually need a permanent foundation, and installing a concrete slab will likely raise your property taxes slightly.

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.

It’s usually better to repair your generator if it isn’t working properly, as it will typically be much more affordable and should yield similar results. Generator repairs cost around $300 on average, while installing a new whole-house generator costs around $5,000 on average. The only exception is if you know your generator is reaching the end of its useful life, usually between 30 and 40 years. If you have an older generator, you could face multiple repairs in the coming years, which might mean that a full replacement will be more cost-effective over time.

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. 

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.

The Newcastle, OK homeowners’ guide to generator installs

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