Top-rated generator install pros.

Best generator install pros near Lexington, OK

Enter your zip and get matched with up to 5 pros

Need a pro for your generator install project in Lexington, OK?

Select your specific project to find the pro for you.

Top-Rated Generator install pros in Lexington - Updated Nov 2026

Avatar for Lofton Locklear
Lofton Locklear
5.0(
1
)
Fixed Generator - RepairPortable Generator - RepairFixed Generator - Install+3 more

Serving Lexington, OK and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

We founded Tri-L Electric out of a pure passion for people. Our electricians goals, ambitions, and inspirations all come together to form a truly amazing electrical company that all of us are proud to be a part of. Since opening we have become masters at our craft. Our electricians go above and beyond your electrical requests to keep you coming back for more. Explore the rest of our site to learn more about what electrical services we offer, and get in touch with one of our qualified electricians with any questions.

Response time9 hrs
11 neighbors recently requested a quote
Whelans Electrical Services
New to Angi
Portable Generator - Repair

Serving Lexington, 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 Lexington, 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 Lexington, 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!!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+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 Lexington, OK and surrounding areas

In business since 2015

Free estimates

Emergency services offered

"We’ve been very happy with the work we’ve had done by Passion Electric and we will definitely hire them again. Their team are all very professional and kind. Their work is excellent and timely and I am always impressed by the quick response time."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

Recommended by100%of homeowners
Showing 1-10 of 49
Generator Install FAQs, answered by experts

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

You may need a permit for a portable generator if you’ll be installing a transfer switch for your primary residence or similar work. Otherwise, a permit for other uses may not be necessary. Check your local building codes or ask a local generator installer for more information about your local regulations.

An undersized whole-house generator has the potential to overheat and shut down when you try to run a central AC system. This scenario can not only damage the whole-house generator, but can also trip your home’s breakers or cause electrical damage. To avoid this situation, hire a local generator installer to correctly size your whole-house generator.

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.

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.

The Lexington, OK homeowners’ guide to generator installs

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