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Whelans Electrical Services
New to Angi

Serving Purcell, 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 OKCPowerCare
OKCPowerCare
5.0(
23
)

Serving Purcell, OK and surrounding areas

In business since 2025

Free estimates

Emergency services offered

"We had a generator and home surge protector installed. They were prompt, polite, and efficient. They showed us how to program/use the generator, cleaned up, etc. I definitely recommend OKCPowerCare."
Generator Install
Generator Install
Response time2 days
Response rate97%
Avatar for Airco Service Inc
Airco Service Inc
4.6(
429
)

Serving Purcell, 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
Avatar for ASG Electric
ASG Electric
5.0(
10
)

Serving Purcell, OK and surrounding areas

In business since 2024

Free estimates

Emergency services offered

ASG Electric is your local Electrician that cares about not only the quality of work you receive, but a relationship with a contractor that you can trust. We strive to always offer the highest level of work and customer service! We do everything from small service calls, lighting upgrades, automatic generator installs, surge protection, remodel electrical, shop buildings, full residential and commercial builds, and so much more! Call us anytime for all of your commercial, residential, and industrial electrical needs!

Generator
Generator
Transfer switch
Rough in
Rough in

+40

Response time5 hrs
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Generator Install questions, answered by experts

Natural gas generators are designed to run for extended periods of time, such as power outages during a natural disaster. Since there’s no limit to the supply of natural gas, they don’t need to stop for refills. However, generators do need maintenance, including pauses to check and add oil. Constantly running them will also cause a lot more wear and tear, leading to a shorter lifespan.

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.

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.

Generally, you’ll want to keep between 60 and 70 feet between the generator and the transfer switch. There are a few reasons for this, including:

  • The distance reduces the noise coming from the generator into your home.

  • It increases efficiency because you won’t have a voltage drop from this short of a distance.

  • Prevents carbon monoxide poisoning: keep at least 15 feet between your generator and an open window. 

A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the total wattage of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.

The Purcell, OK homeowners’ guide to generator installs

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