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Whelans Electrical Services
New to Angi
Portable Generator - Repair

Serving Blanchard, 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 Blanchard, OK and surrounding areas

In business since 1980

Free estimates

Credit card accepted

"The tech (Christian?) was very professional and amiable. He had the unit running again fairly quickly and tested it. He took the time to talk to me about operating the generator and a friendly conversation. I hope he comes back next on the next service date."
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 Blanchard, OK and surrounding areas

In business since 2014

Free estimates

Emergency services offered

"The job was done right, he went out of his way to make sure all aspects of the job was completed. He also did work that was left undone. I would absolutely hire him for other electrical jobs in the future. I will recommend him to other people who need electrical work done."
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+4

Response time1 day
Response rate100%
Recommended by80%of homeowners
Avatar for Passion Electric
Passion Electric
5.0(
8
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Blanchard, OK and surrounding areas

In business since 2015

Free estimates

Emergency services offered

"We have used Passion Electric many times from running electric to outdoor buildings to replacing dangerous outlets. They are very professional with high quality work. They are honest and friendly and dedicated to the customer. I would highly recommend them to anyone."
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+2

Recommended by100%of homeowners
Showing 1-10 of 48
Generator Install questions, 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.

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.

In most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home generators. A permit for a generator usually costs between $50 and $250, depending on where you live. Your electrician or certified generator installer will usually pull the permit for you—and might be required to do so by your building department—but you’ll be on the hook for the cost of the permit. You should ask your installer before agreeing to any work if they will pull the necessary permits for your project.

A home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

The Blanchard, OK homeowners’ guide to generator installs

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