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Whelans Electrical Services
New to Angi
Portable Generator - Repair

Serving Calumet, 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.

Avatar for Wedgeco LLC
Wedgeco LLC
4.9(
28
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Calumet, OK and surrounding areas

In business since 2001

Free estimates

"Great experience from start to finish! I would be happy to recommend his services to family and friends. Throughout the process he was punctual and communicative, I was always well informed what was happening. During installation of the panel he discovered a bad meter box that needed to be replaced, it was unavoidable. He was able to complete both repairs in a timely manor. Due to what work was performed a state inspection was required. it passed with no issues. For me, the whole experiences was great, I never felt pressured into any repairs that were out of the scope of what I was asking for. 5 stars from this guy!"
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+1

Recommended by100%of homeowners
GENERATOR SUPERCENTER
4.2(
36
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Calumet, 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 Passion Electric
Passion Electric
5.0(
8
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Calumet, OK and surrounding areas

In business since 2015

Free estimates

Emergency services offered

"I scheduled an appointment with Passion Electric. They were very helpful on the phone and answered all my questions. I had an appointment for an estimate on updating some electrical work in my home. The electrician arrive on time and was very helpful and knowledgeable. He answered all my questions and walked me through what I needed to get fixed now and the things I could get fixed down the road. I needed to get some plugs changed out and update my panel. He set me up with a new appointment and walked me through all what to expect."
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+2

Recommended by100%of homeowners
Avatar for Passion Electric
Passion Electric
4.8(
26
)
Fixed Generator - Install

Serving Calumet, OK and surrounding areas

In business since 2015

Free estimates

Credit card accepted

"Lance and David were so kind and knowledgeable! Did everything we requested And made sure it was as cost effective as possible. These two gentleman are the only Electricians I will ever use. I highly recommend!"
Response time1 day
Response rate87%
Recommended by100%of homeowners
Avatar for Airco Service Inc
Airco Service Inc
4.6(
429
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Calumet, OK and surrounding areas

In business since 1961

Free estimates

Emergency services offered

"They were extremely punctual for both the estimate, and the actual installation, with full explanation of how the machine works including the comparison between the cost of a tankless and a standard heater,. In addition, there has been some vibration noise (that only one member of the family can hear!) and they have been extremely thorough in working to lessen it, while being cheerful through the whole process, despite having to make extra trips to do so."
Recommended by92%of homeowners
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Generator Install questions, answered by experts

You can determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator’s largest outlet is 30 amps, you’ll need a 30-amp transfer switch.

Generators are usually sized by running watts and starting watts. Ideally, you’ll want a generator that can offer both the necessary running watts and starting watts for everything you need to power without going beyond 90% of its capacity. Calculate your home’s electrical load based on the breakers in your home or adding up the appliance and lighting needs of connected rooms.

No, you should never plug a generator directly into a wall outlet in your house. This practice is extremely dangerous, often illegal, and can cause "back-feeding," where power from the generator flows back into utility lines, creating a life-threatening hazard for utility workers. It can also damage your home's electrical system, including appliances like pumps and HVAC fans. If the main power is restored while the generator is connected, it can destroy the generator and cause an electrical fire. To safely connect a generator, you must use a professionally installed transfer switch or an interlocking kit, which prevents back-feeding by disconnecting your home from the utility grid before the generator provides power.

A portable generator can supply power to selected appliances and circuits in a home, but it's generally not designed to handle the entire household's electrical needs simultaneously. Portable generators have limited wattage capacity, so they are only designed to power essential devices and electronics temporarily until local power is restored. If your power needs outweigh the capabilities of a portable generator, consider installing a whole-home generator instead.

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.

The Calumet, OK homeowners’ guide to generator installs

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